Fluke 5700A II, 5720A II User Manual

5700A/5720A Series II

®

Multi-Function Calibrator

Operators Manual

PN 601622
May 1996 Rev. 1, 3/02

© 1996, 2002 Fluke Corporation. All rights reserved. Printed in U.S .A.
All product names are trademarks of their respective companies.

LIMITED WARRANTY & LIMITATI O N OF LIABILITY

Each Fluke product is warranted to be free fr om defects in material and workmanship
under normal use and service. The warranty period is one year and begins on the date
of shipment. Parts, product repairs and services are warranted for 90 days. This
warranty extends only to the original buyer or end- user customer of a Fluke authorized
reseller, and does not apply to fuses, disposable batt er ies or to any product which, in
Fluke’s opinion, has been misused, altered, neglected or damaged by accident or
abnormal conditions of operation or handling. Fluke warr ant s t hat software will operate
substantially in accordance with its functional specifications for 90 days and that it has
been properly recorded on non-defective media. Fluke does not war r ant that software
will be error free or operate without interruption.

Fluke authorized resellers shall extend this warranty on new and unused products to
end-user customers only but have no authority t o extend a greater or different warr anty
on behalf of Fluke. Warranty support is available if product is purchased through a Fluke
authorized sales outlet or Buyer has paid the applicable international price. Fluke
reserves the right to invoice Buyer for im por tation costs of repair/replacement par t s
when product purchased in one country is submitted f or r epair in another country.

Fluke’s warranty obligation is limited, at Fluke’s option, to refund of the purchase pr ice,
free of charge repair, or replacem ent of a defective product which is returned to a Fluke
authorized service center within the warranty period.

To obtain warranty service, contact your near est Fluke authorized service center or
send the product, with a description of the dif ficulty, postage and insurance prepaid
(FOB Destination), to the nearest Fluke authorized service center. Fluke assumes no
risk for damage in transit. Following warr ant y r epair , the product will be returned to
Buyer, transportation prepaid (FO B Dest inat ion) . If Fluke determines that the failur e
was caused by misuse, alteration, accident or abnormal condition of operation or
handling, Fluke will provide an estimate of repair costs and obt ain aut horization before
commencing the work. Following repair, t he pr oduct will be returned to the Buyer
transportation prepaid and the Buyer will be billed for t he r epair and return transportation
charges (FOB Shipping Point).

THIS WARRANTY IS BUYER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU O F
ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIM ITED
TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY SPECI AL,
INDIRECT, INCIDENTAL OR CO NSEQUENTIAL DAMAGES OR LOSSES,
INCLUDING LOSS OF DATA, W HETHER ARI SING FROM BREACH OF WARRANTY
OR BASED ON CONTRACT, TORT, RELI ANCE O R ANY OTHER THEORY.

Since some countries or states do not allow limitat ion of the term of an implied warranty,
or exclusion or limitation of incidental or consequential damages, the limitations and
exclusions of this warranty may not apply to every buyer . If any provision of this
Warranty is held invalid or unenforceable by a court of com petent jurisdiction, such
holding will not affect the validity or enfor ceabilit y of any other provision.

Fluke Corporation Fluke Europe B.V.
P.O. Box 9090 P.O. Box 1186
Everett, WA 98206-9090 5602 BD Eindhoven
U.S.A. The Netherlands

5/94

Claims

Immediately upon arrival, purchaser shall check the packing container against the enclosed
packing list and shall, within thirty (30) days of arrival, give Fluke notice of shortages or any
nonconformity with the terms of the order. If purchaser fails to five notice, the delivery shall be
deemed to conform with the terms of the order.

The purchaser assumes all risk of loss or damage to instruments upon delivery by Fluke to the
carrier. If an instrument is damaged in transit, PURCHASER MUST FILE ALL CLAIMS FOR
DAMAGE WITH THE CARRIER to obtain compensation. Upon request by purchaser, Fluke will
submit an estimate of the cost to repair shipment damage.

Fluke will be happy to answer all questions to enhance the use of this instrument. Please address
your requests or correspondence to: Fluke Corporation, P.O. Box 9090, Everett, WA 98206-9090.

Declaration of the Manufacturer or Importer

We hereby certify that the Fluke Models 5700A Series II and 5720A Series II are in compliance
with Postal Regulation Vfg. 1046 and is RFI suppressed. The marketing and sale of the equipment
was reported to the German Postal Service. The right to retest this equipment to verify compliance
with the regulation was given to the German Postal Service.

Bescheinigung des Herstellers/Importeurs

Hiermit wird bescheinigt, daβ Fluke Models 5700A Series II und 5720A Series II in

Übereinstimung mit den Bestimmungen der Amtsblattverfügung Vfg. 1046 funk-entstört ist, Der
Deutschen Bundespost wurde das Inverkehrbringen dieses Gerätes angezeigt und die
Berechtigung zur Überprüfung der Seire auf Einhaltung der Bestimmungen eingeräumt.

Fluke Corporation

Interference Information

This equipment generates and uses radio frequency energy and if not installed and used in strict
accordance with the manufacturer’s instructions, may cause interference to radio and television
reception. It has been type tested and found to comply with the limits for a Class B computing
device in accordance with the specifications in Subpart J of Part 15 of FCC Rules, which are
designed to provide reasonable protection against such interference in a residential installation.
However, there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one
of more of the following measures:

• Reorient the receiving antenna

• Relocate the equipment with respect to the receiver

• Move the equipment away from the receiver

• Plug the equipment into a different outlet so that the computer and receiver are on different

branch circuits

If necessary, the user should consult the dealer or an experienced radio/television technician for
additional suggestions. The user may find the following booklet prepared by the Federal
Communications Commission helpful: How to Identify and Resolve Radio-TV Interference
Problems. This booklet is available from the U.S. Government Printing Office, Washington, D.C.

20402. Stock No. 004-000-00345-4.

OPERATOR SAFETY

SUMMARY

WARNING

HIGH VOLTAGE

is used in the operation of this equipment

LETHAL VOLTAGE

may be present on the terminals, observe all safety precautions!

To avoid electrical shock hazard, the operator should not electrically
contact the output hi or sense hi binding posts. During operation, lethal
voltages of up to 1100V ac or dc may be present on these terminals.

Whenever the nature of the operation permits, keep one hand away from
equipment to reduce the hazard of current flowing thought vital organs of
the body.

Terms in this Manual

This instrument has been designed and tested in accordance with the safety standards
listed in the General Specifications, which are located in the Specifications section in
Chapter 1 of this Operator Manual. This manual contains information and warnings which
have to be followed by the user to ensure safe operation and to retain the instrument in
safe condition.

WARNING statements identify conditions or practices that could result in personal injury or
loss of life.

CAUTION statements identify conditions or practices that could result in damage to the
equipment or other property.

Symbols Marked on Equipment

DANGER — High Voltage

Protective ground (earth) terminal

Attention — refer to the manual. This symbol indicates that information about
the usage of a feature is contained in the manua

l.

Power Source

The 5700A Series II and 5720A Series II are intended to operate from a power source that
will not apply more than 264V ac rms between the supply conductors or between either
supply conductor and ground. A protective ground connection by way of the grounding
conductor in the power cord is essential for safe operation.

Use the Proper Fuse

To avoid fire hazard, use only the fuse specified on the line voltage selection switch label,
and which is identical in type voltage rating, and current rating.

Grounding the 5700A Series II or 5720A Series I I

The 5700A Series II and 5720A Series II are Safety Class I (grounded enclosure)
instruments as defined in IEC 348. The enclosure is grounded through the grounding
conductor of the power cord. To avoid electrical shock, plug the power cord into a
properly wired earth grounded receptacle before connecting anything to any of the 5700A
Series II or 5720A Series II terminals. A protective ground connection by way of the
grounding conductor in the power cord is essential for safe operation.

Use the Proper Power Cord

Use only the power cord and connector appropriate for proper operation of a 5700A Series
II or 5720A Series II in your country.

Use only a power cord that is in good condition.
For detailed information on power cords, refer to Figure 2-3 in Chapter 2.
Refer cord and connector changes to qualified service personnel.

Do Not Operate in Explosive Atmospheres

To avoid explosion, do not operate the 5700A Series II or 5720A Series II in an
atmosphere of explosive gas.

Do Not Remove Cover

To avoid personal injury, do not remove the cover from the 5700A Series II or 5720A
Series II. Do not operate the 5700A Series II or 5720A Series II without the cover
properly installed. There are no user-serviceable parts inside the 5700A Series II or the
5720A Series II, so there is no need for the operator to ever remove the cover.

FIRST AID FOR ELECTRIC SHOCK

Free the Victim From the Live Conductor

Shut off high voltage at once and ground the circuit. If high voltage cannot be turned off
quickly, ground the circuit.

Get Help!

Call loudly for help. Call an emergency number. Request medical assistance.

Never Accept Ordinary and General Tests for Death

Symptoms of electric shock may include unconsciousness, failure to breathe, absence of
pulse, pallor, and stiffness, and well as severe burns.

Treat the Victim

If the victim is not breathing, begin CPR or mouth-to-mouth resuscitation if you are
certified.

Table of Contents

Chapter Title Page

1 Introduction and Specifications........................................................ 1-1

1-1. Introduction.......................................................................................... 1-3

1-2. Instruction Manuals.............................................................................. 1-4

1-3. About this Manual................................................................................ 1-4

1-4. How to Use this Manual....................................................................... 1-5

1-5. Wideband AC Voltage Module (Option 5700A-03)............................ 1-5

1-6. Auxiliary Amplifier.............................................................................. 1-5

1-7. 5725A Amplifier.............................................................................. 1-6

1-8. Support Equipment and Services ......................................................... 1-6

1-9. 732B Direct Voltage Reference Standard........................................ 1-6

1-10. 732B-200 Direct Volt Maintenance Program (U.S.A. Only) .......... 1-7

1-11. 742A Series Resistance Standards................................................... 1-7

1-12. Wideband AC Module (Option 5700A-03) Calibration Support .... 1-7

1-13. Service Centers ................................................................................ 1-7

1-14. The Components of the 5700A/5720A Series II Calibrator................. 1-8

1-15. Calibrating the 5700A/5720A Series II Calibrator............................... 1-8

1-16. The Calibration Process................................................................... 1-10

1-17. Establishing Traceability ................................................................. 1-10

1-18. Calibration Reports.......................................................................... 1-10

1-19. Calibration Check................................................................................. 1-11

1-20. Developing a Performance History...................................................... 1-11

1-21. Range Calibration ................................................................................ 1-11

1-22. DC Zeros Calibration ........................................................................... 1-11

1-23. Specifications....................................................................................... 1-12

1-24. Specification Confidence Levels ..................................................... 1-12

1-25. Using Absolute and Relative Uncertainty Specifications................ 1-12

1-26. Using Secondary Performance Specifications................................. 1-12

1-27. DC Voltage Specifications................................................................... 1-13

1-28. AC Voltage Specifications................................................................... 1-16

1-29. Resistance Specifications..................................................................... 1-22

1-30. DC Current Specifications ................................................................... 1-26

i

5700A/5720A Series II

Operators Manual

2 Installation.......................................................................................... 2-1

3 Features.............................................................................................. 3-1

1-31. AC Current Specifications ................................................................... 1-29

1-32. Wideband AC Voltage (Option 5700-03) Specifications .................... 1-34

1-33. General Specifications.......................................................................... 1-35

1-34. Auxiliary Amplifier Specifications...................................................... 1-36

2-1. Introduction.......................................................................................... 2-3

2-2. Unpacking and Inspection.................................................................... 2-3

2-3. Service Information.............................................................................. 2-4

2-4. Contacting Fluke .................................................................................. 2-4

2-5. Placement and Rack Mounting............................................................. 2-4

2-6. Cooling Considerations........................................................................ 2-4

2-7. Accessing the Fuse............................................................................... 2-5

2-8. Selecting Line Voltage......................................................................... 2-6

2-9. Connecting to Line Power.................................................................... 2-8

2-10. Connecting a 5725A Amplifier............................................................ 2-8

2-11. Selecting Output Binding Posts............................................................ 2-8

3-1. Introduction.......................................................................................... 3-3

3-2. Front Panel Features............................................................................. 3-3

3-3. Display Screen Saver....................................................................... 3-3

3-4. Rear Panel Features.............................................................................. 3-12

3-5. Softkey Menu Tree............................................................................... 3-14

4 Front Panel Operation ....................................................................... 4-1

4-1. Introduction.......................................................................................... 4-3

4-2. Powering on the Calibrator .................................................................. 4-4

4-3. Warm Up.............................................................................................. 4-4

4-4. DC Zeros .............................................................................................. 4-5

4-5. Executing DC Zeros......................................................................... 4-5

4-6. DC Zeros Reminder......................................................................... 4-5

4-7. The Setup Menu ................................................................................... 4-6

4-8. Instrument Setup.............................................................................. 4-7

4-9. Format EEPROM Menu................................................................... 4-7

4-10. Spec Format Setup Menu................................................................. 4-8

4-11. Setting the Internal Clock/Calendar................................................. 4-9

4-12. Selecting Amplifiers ........................................................................ 4-10

4-13. Checking the Instrument Configuration........................................... 4-11

4-14. Special Functions Menu................................................................... 4-12

4-15. Resetting the Calibrator........................................................................ 4-12

4-16. Operate and Standby Modes................................................................. 4-13

4-17. Connecting the Calibrator to a UUT.................................................... 4-13

4-18. Recommended Cable and Connector Types.................................... 4-13

4-19. When to Use External Sensing ........................................................ 4-14

4-20. When to Use the External Voltage Guard........................................ 4-15

4-21. When to Use the Current Guard....................................................... 4-15

4-22. Four-Wire Vs. Two-Wire Resistance Connections ......................... 4-16

4-23. Cable Connection Instructions......................................................... 4-16

4-24. Setting the Output................................................................................. 4-22

4-25. DC Voltage Output .......................................................................... 4-24

4-26. AC Voltage Output .......................................................................... 4-25

4-27. DC Current Output........................................................................... 4-27

ii

Contents

4-28. AC Current Output........................................................................... 4-28

4-29. Resistance Output ............................................................................ 4-30

4-30. Wideband AC Voltage Output (Option 5700A-03)......................... 4-32

4-31. Variable Phase Output ..................................................................... 4-34

4-32. Phase Locking to an External Signal.................................................... 4-35

4-33. Using an Auxiliary Amplifier............................................................... 4-36

4-34. 5725A Amplifier Output.................................................................. 4-37

4-35. Checking the Calibrator’s Uncertainty Specification .......................... 4-38

4-36. Error Mode Operation.......................................................................... 4-38

4-37. Error Mode Overview...................................................................... 4-39

4-38. Entering Error Mode.................................................................... 4-39

4-39. Exiting Error Mode...................................................................... 4-39

4-40. Using Error Mode........................................................................ 4-40

4-41. Reading the UUT Error: AC and DC Voltage and Current Output. 4-40

4-42. Reading the UUT Error: Resistance Output .................................... 4-41

4-43. Introduction to Offset, Scale, and Linearity Errors.............................. 4-42

4-44. Offset Error...................................................................................... 4-42

4-45. Scale Error ....................................................................................... 4-43

4-46. Linearity Error ................................................................................. 4-44

4-47. Combining the Error Types.............................................................. 4-44

4-48. Programming an Offset........................................................................ 4-45

4-49. Programming a Scale Factor ................................................................ 4-46

4-50. Linearity Checking Using Offset and Scale......................................... 4-47

4-51. Setting Output Limits........................................................................... 4-50

4-52. Setting Voltage and Current Limits................................................. 4-50

4-53. Sample Applications............................................................................. 4-51

4-54. Calibrating Fluke 70 Series Multimeter........................................... 4-51

4-55. Cables .......................................................................................... 4-52

4-56. Guarding...................................................................................... 4-52

4-57. Sensing......................................................................................... 4-52

4-58. Testing the Meter......................................................................... 4-53

4-59. Calibrating the Meter................................................................... 4-54

4-60. Calibrating a Fluke Model 8840A Series Digital Multimeter ......... 4-56

4-61. Cables .......................................................................................... 4-56

4-62. Guarding...................................................................................... 4-56

4-63. Sensing......................................................................................... 4-58

4-64. Basic Calibration Procedure........................................................ 4-58

4-65. Calibration Setup Procedure........................................................ 4-58

4-66. A/D Calibration ........................................................................... 4-59

4-67. Offset and Gain Calibration......................................................... 4-60

4-68. High Frequency AC Calibration.................................................. 4-62

4-69. Performing A Wideband Flatness Test............................................ 4-63

(continued)

5 Remote Operation.............................................................................. 5-1

5-1. Introduction.......................................................................................... 5-3

5-2. Using the IEEE-488 Port for Remote Control...................................... 5-4

5-3. IEEE-488 Bus Restrictions .............................................................. 5-4

5-4. Bus Setup Procedure........................................................................ 5-4

5-5. Using the RS-232C Port for Remote Control....................................... 5-5

5-6. Serial Remote Control Setup Procedure.......................................... 5-6

5-7. Exceptions for Serial Remote Control............................................. 5-7

5-8. Command Syntax Information ............................................................. 5-7

5-9. Parameter Syntax Rules................................................................... 5-8

5-10. Extra Space Characters.................................................................... 5-9

iii

5700A/5720A Series II

Operators Manual

5-11. Terminators...................................................................................... 5-9

5-12. Incoming Character Processing........................................................ 5-9

5-13. Response Message Syntax............................................................... 5-10

5-14. Input Buffer Operation......................................................................... 5-10

5-15. Commands............................................................................................ 5-10

5-16. Multiple Commands......................................................................... 5-11

5-17. Coupled Commands......................................................................... 5-11

5-18. Sequential and Overlapped Commands........................................... 5-12

5-19. Commands Ignored When Not in Remote....................................... 5-12

5-20. Commands that Require the Calibration Switch to be Set............... 5-12

5-21. Long Term Commands..................................................................... 5-12

5-22. Local-to-Remote State Transitions....................................................... 5-43

5-23. Checking the Calibrator’s Status.......................................................... 5-45

5-24. Serial Poll Status Byte ..................................................................... 5-47

5-25. Service Request Line (SRQ)........................................................ 5-48

5-26. Service Request Enable Register................................................. 5-48

5-27. Loading the SRE.......................................................................... 5-48

5-28. Event Status Register....................................................................... 5-49

5-29. Bit Assignments for the ESR and ESE........................................ 5-49

5-30. Reading the ESR and ESE........................................................... 5-50

5-31. Loading the ESE.......................................................................... 5-50

5-32. Instrument Status Register............................................................... 5-51

5-33. Instrument Status Change Register.................................................. 5-51

5-34. Instrument Status Change Enable Register...................................... 5-51

5-35. Bit Assignments for the ISR, ISCR, and ISCE............................ 5-51

5-36. Reading the ISR, ISCR, or ISCE................................................. 5-52

5-37. Loading the ISCE......................................................................... 5-52

5-38. Fault Queue...................................................................................... 5-53

5-39. IEEE-488 Interface Configuration ....................................................... 5-54

5-40. Bus Communication Overview............................................................ 5-55

5-41. Definition: Queries and Commands................................................. 5-56

5-42. Functional Elements Of Commands................................................ 5-56

5-43. Interface Messages........................................................................... 5-58

5-44. The IEEE-488 Connector..................................................................... 5-60

5-45. Remote Program Examples.................................................................. 5-61

5-46. Printing Main Output Calibration Shift Results .............................. 5-61

5-47. Verifying a Meter............................................................................. 5-62

5-48. Remote Calibration.......................................................................... 5-62

5-49. DC Zeros...................................................................................... 5-62

5-50. Calibration................................................................................... 5-63

5-51. Calibration Check........................................................................ 5-64

5-52. Wideband AC Module (Option 5700A-03) Gain Calibration..... 5-65

5-53. Using *OPC?, *OPC, and *WAI..................................................... 5-66

5-54. Writing an SRQ and Fault Handler.................................................. 5-67

5-55. Emulating a Fluke 5100B or 5200A Calibrator................................... 5-68

5-56. Entering Emulation Mode................................................................ 5-68

5-57. Exiting Emulation Mode.................................................................. 5-69

5-58. The 5720’s Display During Emulation............................................ 5-69

5-59. 5100B Emulation.................................................................................. 5-69

5-60. Local-to-Remote Transitions........................................................... 5-69

5-61. Current Output Location.................................................................. 5-70

5-62. Differences in the 5700A/5720A Series II and

5100B Ohms Function................................................................... 5-70

5-63. Ohms Remote Program Modifications for 5100B Emulation.......... 5-71

5-64. 5200A Emulation ................................................................................. 5-72

iv

Contents

5-65. Local-to-Remote Transitions........................................................... 5-72

5-66. Voltage and Frequency Ranges........................................................ 5-72

5-67. Rounding Numeric Entries............................................................... 5-73

5-68. Settling Times.................................................................................. 5-73

5-69. Programming External Sensing........................................................ 5-74

5-70. Overload Conditions........................................................................ 5-74

5-71. Phase Lock Errors............................................................................ 5-74

6 Using the RS-232C Serial Interface .................................................. 6-1

6-1. Introduction.......................................................................................... 6-3

6-2. RS-232C Interface Specifications........................................................ 6-3

6-3. Setting Up and Connecting the Serial Interface................................... 6-4

6-4. Printing Calibration Reports................................................................. 6-6

6-5. Calibration Shift Results.................................................................. 6-6

6-6. Calibration Check Shift Results....................................................... 6-7

6-7. Generating a Printout....................................................................... 6-8

7 Operator Maintenance....................................................................... 7-1

7-1. Introduction.......................................................................................... 7-3

7-2. Accessing the Fuse............................................................................... 7-4

7-3. Cleaning the Air Filter.......................................................................... 7-4

7-4. Cleaning the Exterior ........................................................................... 7-6

7-5. Calibration............................................................................................ 7-6

7-6. Calibrating the 5700A/5720A Series II to External Standards............ 7-6

7-7. Calibration Requirements ................................................................ 7-7

7-8. When to Adjust the Calibrator’s Uncertainty.................................. 7-7

7-9. Calibration Procedure ...................................................................... 7-8

7-10. Range Calibration................................................................................. 7-14

7-11. Calibrating the Wideband AC Module (Option 5700A-03)................. 7-18

7-12. Performing a Calibration Check........................................................... 7-21

(continued)

8 Options and Accessories.................................................................. 8-1

8-1. Introduction.......................................................................................... 8-3

8-2. Wideband AC Voltage Module (Option 5700A-03............................. 8-3

8-3. Accessories........................................................................................... 8-3

8-4. Low Thermal EMF Test Leads........................................................ 8-4

8-5. Rack Mount Kits (Y5737 and Y5735)............................................. 8-4

8-6. Shielded IEEE-488 Interface Cables (Y8021, Y8022, and Y8023). 8-4

8-7. RS-232C Null-Modem Cables (Y1702 and Y1703)........................ 8-4

8-8. DC Voltage Reference Standard (732B).......................................... 8-4

8-9. 1Ω and 10 kΩ Resistance Standards (742A-1 and 742A-10k)........ 8-5

8-10. 5725A Amplifier .................................................................................. 8-5

Appendices

Fault Codes........................................................................................................A-1

ASCII and IEEE Bus Codes..............................................................................B-1

Symbolic Names of Calibration Constants .......................................................C-1

Glossary.............................................................................................................D-1

v

5700A/5720A Series II

Operators Manual

vi

List of Tables

Table Title Page

1-1. Auxiliary Amplifier Data....................................................................................... 1-6

1-2. 5720A Series II DC Voltage Specifications: 99 % and 95 % Confidence Levels 1-13
1-3. 5700A Series II DC Voltage Specifications: 99 % and 95 % Confidence Levels 1-14
1-4. DC Voltage Secondary Performance Specifications and

Operating Characteristics .................................................................................... 1-15

1-5. 5720A Series II AC Voltage Specifications: 99 % Confidence Level.................. 1-16

1-6. 5720A Series II AC Voltage Specifications: 95 % Confidence Level.................. 1-17

1-7. 5700A Series II AC Voltage Specifications: 99 % Confidence Level.................. 1-18

1-8. 5700A Series II AC Voltage Specifications: 95 % Confidence Level.................. 1-19

1-9. AC Voltage Secondary Performance Specifications and

Operating Characteristics .................................................................................... 1-20

1-10. 5720A Series II Resistance Specifications: 99 % and 95 % Confidence Levels.. 1-22
1-11. 5700A Series II Resistance Specifications: 99 % and 95 % Confidence Levels.. 1-23
1-12. Resistance Secondary Performance Specifications and

Operating Characteristics .................................................................................... 1-24

1-13. Current Derating Factors....................................................................................... 1-25

1-14. 5720A Series II DC Current Specifications: 99 % and 95 % Confidence Levels. 1-26
1-15. 5700A Series II DC Current Specifications: 99 % and 95 % Confidence Levels. 1-27
1-16. DC Current Secondary Performance Specifications and

Operating Characteristics .................................................................................... 1-28

1-17. 5720A Series II AC Current Specifications: 99 % Confidence Level................... 1-29

1-18. 5720A Series II AC Current Specifications: 95 % Confidence Level................... 1-30

1-19. 5700A Series II AC Current Specifications: 99 % Confidence Level................... 1-31

1-20. 5700A Series II AC Current Specifications: 95 % Confidence Level................... 1-32

1-21. AC Current Secondary Performance Specifications and

Operating Characteristics .................................................................................... 1-33

1-22. Wideband AC Voltage (Option 5700-03) Specifications...................................... 1-34

2-1. Standard Equipment............................................................................................... 2-3

2-2. Line Power Cord Types Available from Fluke...................................................... 2-6

3-1. Front Panel Features.............................................................................................. 3-4

3-2. Rear Panel Features............................................................................................... 3-12

4-1. Auxiliary Amplifier Data....................................................................................... 4-14

4-2. UUT Connection Figures....................................................................................... 4-16

4-3. Keys that Exit Error Mode..................................................................................... 4-39

4-4. 8840A A/D Converter Calibration Prompts .......................................................... 4-59

vii

5700A/5720A Series II

Operators Manual

4-5. 8840A A/D Calibration Allowable Errors............................................................. 4-60

4-6. 8840A Offset and Gain Calibration Prompts......................................................... 4-61

4-7. 8840A High-Frequency AC Calibration Prompts.................................................. 4-62

5-1. Command Summary by Function.......................................................................... 5-13

5-2. Commands ............................................................................................................. 5-17

5-3. Serial Remote Control Commands........................................................................ 5-42

5-4. Range Identifiers for Remote Commands.............................................................. 5-42

5-5. Operating State Transitions................................................................................... 5-44

5-6. Status Register Summary....................................................................................... 5-45

5-7. Supported IEEE-488 Interface Function Subsets.................................................. 5-54

5-8. Functional Elements of Commands....................................................................... 5-57

5-9. Interface Messages Accepted by the Calibrator.................................................... 5-58

5-10. Interface Messages Sent by the Calibrator............................................................ 5-59

6-1. RS-232C Interface Parameter Choices.................................................................. 6-4

6-2. Annotation for Shift Results Printout.................................................................... 6-16

7-1. Standards for Calibrating 5700A/5720A Series II................................................. 7-7

8-1. Accessories............................................................................................................ 8-3

viii

List of Figures

Figure Title Page

1-1. Time and Costs: Calibrator Calibration................................................................. 1-9

1-2. Volt-Hertz Capability ............................................................................................ 1-21

2-1. Accessing the Fuse ................................................................................................ 2-5

2-2. Line Power Cord Types Available from Fluke...................................................... 2-6

2-3. Line Power Label and Switch Location................................................................. 2-7

3-1. Front Panel Features.............................................................................................. 3-5

3-2. Rear Panel Features............................................................................................... 3-13

3-3. Softkey Menu Tree ................................................................................................ 3-15

4-1. UUT Connections: DC Voltage, AC Voltage N+]......................................... 4-17

4-2. UUT Connections: AC Voltage >10 kHz.............................................................. 4-18

4-3. UUT Connections: AC Current $ ..................................................................... 4-19

4-4. UUT Connections: Resistance............................................................................... 4-20

4-5. UUT Wideband AC Voltage Output (Option 5700A-03)..................................... 4-22

4-6. UUT Connections: 5725A Amplified Current Output.......................................... 4-23

4-7. Offset Error............................................................................................................ 4-42

4-8. Scale Error............................................................................................................. 4-43

4-9. Linearity Error....................................................................................................... 4-44

4-10. Meter Response vs. Stimulus................................................................................. 4-47

4-11. Cable Connections for Testing a Fluke 70 Series Multimeter............................... 4-53

4-12. Cable Connections for Calibrating a Fluke 70 Series Multimeter......................... 4-55

4-13. 8840A Calibration Connections ............................................................................ 4-57

5-1. Overview of Status Data Structure ........................................................................ 5-46

5-2. IEEE-488 Connector Pin Assignments.................................................................. 5-60

6-1. RS-232C Connector Pinout................................................................................... 6-3

7-1. Accessing the Fuse ................................................................................................ 7-4

7-2. Accessing the Air Filter......................................................................................... 7-5

7-3. 732B External Calibration Connections................................................................ 7-9

7-5. 220V DC Range Calibration Connections............................................................. 7-17

7-6. Wideband Module Calibration Connection........................................................... 7-19

ix

5700A/5720A Series II

Operators Manual

x

Chapter 1

Introduction and Specifications

Title Page

1-1. Introduction.......................................................................................... 1-3

1-2. Instruction Manuals.............................................................................. 1-4

1-3. About this Manual................................................................................ 1-4

1-4. How to Use this Manual....................................................................... 1-5

1-5. Wideband AC Voltage Module (Option 5700A-03)............................ 1-5

1-6. Auxiliary Amplifier.............................................................................. 1-5

1-7. 5725A Amplifier.............................................................................. 1-6

1-8. Support Equipment and Services ......................................................... 1-6

1-9. 732B Direct Voltage Reference Standard........................................ 1-6

1-10. 732B-200 Direct Volt Maintenance Program (U.S.A. Only) .......... 1-7

1-11. 742A Series Resistance Standards................................................... 1-7

1-12. Wideband AC Module (Option 5700A-03) Calibration Support .... 1-7

1-13. Service Centers ................................................................................ 1-7

1-14. The Components of the 5700A/5720A Series II Calibrator................. 1-8

1-15. Calibrating the 5700A/5720A Series II Calibrator............................... 1-8

1-16. The Calibration Process................................................................... 1-10

1-17. Establishing Traceability ................................................................. 1-10

1-18. Calibration Reports.......................................................................... 1-10

1-19. Calibration Check................................................................................. 1-11

1-20. Developing a Performance History...................................................... 1-11

1-21. Range Calibration ................................................................................ 1-11

1-22. DC Zeros Calibration ........................................................................... 1-11

1-23. Specifications....................................................................................... 1-12

1-24. Specification Confidence Levels ..................................................... 1-12

1-25. Using Absolute and Relative Uncertainty Specifications................ 1-12

1-26. Using Secondary Performance Specifications................................. 1-12

1-27. DC Voltage Specifications................................................................... 1-13

1-28. AC Voltage Specifications................................................................... 1-16

1-29. Resistance Specifications..................................................................... 1-22

1-1

5700A/5720A Series II

Operators Manual

1-30. DC Current Specifications ................................................................... 1-26

1-31. AC Current Specifications ................................................................... 1-29

1-32. Wideband AC Voltage (Option 5700-03) Specifications .................... 1-34

1-33. General Specifications.......................................................................... 1-35

1-34. Auxiliary Amplifier Specifications...................................................... 1-36

1-2

1-1. Introduction

The Fluke Model 5700A/5720A Series II Calibrators are precise instruments that
calibrate a wide variety of electrical measuring instruments. These calibrators maintain
high accuracy over a wide ambient temperature range, allowing them to test instruments
in any environment, eliminating the restrictions to calibrate only in a temperature­controlled standards laboratory. With a 5700A/5720A Series II, you can calibrate
precision multimeters that measure ac or dc voltage, ac or dc current, and resistance. The
5720A Series II operates in a similar manner to the 5700A Series II, the difference is that
the 5720A Series II has a considerably higher specified accuracy. Option 5700A-03
Wideband AC Voltage, which is available for both the 5700A Series II and the 5720A
Series II, extends this workload to include rf voltmeters.

Specifications are provided at the end of this chapter. The calibrator is a fully­programmable precision source of the following:

• DC voltage to 1100 V

• AC voltage to 1100 V, with output available from 10 Hz to 1.2 MHz

• AC and DC current to 2.2 A, with output available from 10 Hz to 10 kHz

• Resistance in values of 1x10

Introduction and Specifications

n

and 1.9x10n from 1 Ω to 100 MΩ, plus a short

Introduction

1

• Optional wideband ac voltage from 300 µV to 3.5 V into 50 Ω (-57 dBm to

+24 dBm), 10 Hz to 30 MHz

Features of the calibrator include the following:

• Internal environmentally-controlled references allowing the calibrator to maintain

full performance over a wide ambient temperature range

• Automatic meter error calculation obtained through using a simple output adjust

knob; the display shows linearity, offset, and scale errors

• Keys that multiply and divide the output value by 10 to simplify work on meters

with calibration points at decade multiples of a fraction of full-scale

• Programmable entry limits used for restricting the levels that can be keyed into the

calibrator, preventing access to levels that may be harmful to equipment or personnel

• A s key that provides the capability of displaying the instrument’s specification at

the selected operating point, calibration interval, and specification confidence level

• An auxiliary current binding post that allows you to calibrate meters with separate

current inputs without moving cables

• Real-time clock and calendar for date stamping reports

• Offset and scaling modes that simplify linearity testing of multimeters

• Variable phase reference signal output and phase-lock input

• Interface for the Fluke 5725A Amplifier

• Standard IEEE-488 (GPIB) interface, complying with ANSI/IEEE Standards 488.1-

1987 and 488.2-1987

• Selectable normal remote mode or emulation of the Fluke 5100B and 5200A Series

calibrators in functions and response to system controller software

• EIA Standard RS-232C serial data interface for printing, displaying, or transferring

internally-stored calibration constants, and for remote control of the calibrator

• Extensive internal self-testing and diagnostics of analog and digital functions

1-3

5700A/5720A Series II

Operators Manual

• A traceable calibration procedure for all modes and ranges that requires only 10 V,

• Fast, simple, automated calibration check providing added confidence between

1-2. Instruction Manuals

The 5700A/5720A Series II Calibrators ship with a complete manual set that contains
information for the operator and service or maintenance technicians. The set includes:

• 5700A/5720A Series II Getting Started Manual (PN 1668111)

• 5700A/5720A Series II Operator Reference Guide (PN 601648)

• 5700A/5720A Series II Remote Programming Reference Guide (PN 601655)

• 5700A/5720A Series II Operator Manual (provided on CD-ROM, PN 1668127, or a

1 Ω, and 10 kΩ external standards, with only occasional independent verification

calibration recalls, and data that can be used to document and characterize the

calibrator’s performance between calibration recalls

printed copy is available for purchase through the Fluke Service Department under
PN 601622)

• 5700A/5720A Series II Service Manual (provided on CD-ROM, PN 1668127, or a

printed copy is available for purchase through the Fluke Service Department under
PN 105798)

Order additional copies of these instruction manuals separately using the part numbers
provided. For ordering instructions, refer to the Fluke Catalog or contact a Fluke sales
representative.

1-3. About this Manual

This manual provides complete information for installing the calibrator and operating it
from the front panel keys and in remote. It also provides a glossary of calibration-related
terms as well as general items such as specifications and error code information. The
following topics are covered in this manual:

• Installation

• Operating controls and features

• Front panel operation

• Remote operation (IEEE-488 bus or serial port remote control)

• Serial port operation (printing, displaying, or transferring data, and setting up for

serial port remote control)

• Operator maintenance, including how to calibrate the 5700A/5720A Series II

Calibrator

1-4

• Options and accessories

1-4. How to Use this Manual

Use the following list to find the location of specific information.

• Unpacking and setup: Chapter 2

• Installation and rack mounting: Chapter 2; also the rack mount kit instruction sheet

• AC line power and interface cabling: Chapter 2

• Controls, indicators, and displays: Chapter 3

• Front panel operation: Chapter 4

• Cabling to a UUT (Unit Under Test): Chapter 4

• Using auxiliary amplifiers: Chapter 4

• Self calibration: Chapters 1 and 7

• Remote operation (IEEE-488 or serial): Chapter 5

• Options and accessories: Chapters 2 and 8

• Instrument specifications: The end of this Chapter

Introduction and Specifications

How to Use this Manual

1

1-5. Wideband AC Voltage Module (Option 5700A-03)

The Wideband AC Voltage Module (Option 5700A-03) can be installed in both the
5700A and 5720A Series II Calibrators. The module is a high-accuracy, low-noise,
extremely flat ac voltage source for calibrating rf voltmeters, with a frequency range of
10 Hz to 30 MHz. Output is in seven ranges from 300 µV (-57 dBm) to 3.5 V (+24 dBm)

through a Type-N coaxial connector into a 50 Ω load. The output level is selected in
volts or dBm through either the front panel controls or under remote control.

The wideband module also functions with the calibrator’s output adjust controls that let
display the error of a wideband meter in either percentage of output or in decibels.

Included with the wideband module is a Type-N output cable and a 50 Ω terminator. The
wideband module is calibrated to the end of its standard-equipment output cable.

1-6. Auxiliary Amplifier

The Fluke Model 5725A Amplifier is available to extend the high voltage performance
and current range of the calibrator:

Interface connectors on the calibrator’s rear panel accept cables to directly operate a
5725A. Three amplifiers can be connected to the calibrator at the same time, but only
one output can be active at a time. Once you have connected the amplifiers and
configured the calibrator in a setup menu, amplifier operation is controlled by the
calibrator.

Chapter 4 provides instructions for operating the 5725A. The general specifications at
the end of this chapter include specifications for operating the calibrator with the 5725A.
For other amplifier specifications, refer to their instruction manuals. Table 1-1
summarizes the extended capabilities offered by the 5725A. Brief descriptions of the
extended capabilities follow.

1-5

5700A/5720A Series II

Operators Manual

Model Mode Range

5725A Amplifier AC V 20 to 1100 V rms up to 70 mA, 40 Hz to 30 kHz

1-7. 5725A Amplifier

The Fluke 5725A Amplifier is an external unit operating under calibrator control to
extend ac voltage drive capabilities and both ac and dc current output range. The

amplifier adds the following capabilities to the calibrator’s 1100 V AC range with no
compromise in accuracy:

• Frequency limits at higher voltage increase to 100 kHz at 750 V, 30 kHz at 1100 V.

• Load limit increases to 70 mA for frequencies above 5 kHz.

Table 1-1. Auxiliary Amplifier Data

(50 mA < 5 kHz)
220 to 750 V rms up to 70 mA, 30 kHz to 100 kHz

DC Amps 0 to ±11 A

DC Amps 1 to 11 A rms, 40 Hz to 10 kHz

• Capacitive drive increases to 1000 pF, subject to the maximum output current.
Extended-performance voltage is available at the calibrator’s front or rear binding posts,

eliminating the need to change cables during a procedure.
A separate set of binding posts on the front panel of the 5725A supplies extended-range

ac and dc current outputs. Since most meters have a separate input terminal for the high
current ranges, this eliminates the need to change cables during a procedure. The 5725A
can also be configured to source all current (both standard calibrator-generated current
and its own current) through the 5725A binding posts.

1-8. Support Equipment and Services

Fluke supports your calibration needs with precision, high-quality equipment and a wide
range of services. Depending on your needs, location, and capabilities, you may decide
to support your 5700A/5720A Series II Calibrator independently or use Fluke services
for part, or all, of your support needs. The following paragraphs describe the support
equipment and services offered by Fluke for the calibrator. For specifications and
ordering instructions for this support equipment and other Fluke instruments, refer to the
Fluke catalog, or contact a representative at a Fluke Sales and Service Center.

1-9. 732B Direct Voltage Reference Standard

The Fluke 732B is a rugged, easily transported solid state direct voltage reference
standard with a highly predictable 10 V output. This predictability allows the Fluke
Standards Laboratory, as well as many Fluke customers, to completely eliminate fragile,
saturated standard cells. Laboratories still maintain standard cells using the 732A and
732B as a transportable voltage standard, eliminating the need to transport their standard
cells. The 732B can be short-circuited, even for extended periods of time, without
damage or loss of stability. It maintains full specified stability over a temperature span
of 18 to 28 °C.

1-6

The calibrator uses a 10 V reference standard such as the Fluke 732B in its semi­automated calibration procedure to establish external voltage traceability. Chapter 7
describes this procedure.

Introduction and Specifications

Support Equipment and Services

1-10. 732B-200 Direct Volt Maintenance Program (U.S.A. Only)

The Fluke 732B-200 Direct Volt Maintenance Program provides your laboratory with
NIST-traceable 10 V calibration uncertainty as low as 0.6 parts per million.

The program maintains the 732B that you keep in your laboratory. To accomplish this,
the following occurs:

1. Fluke sends you a calibrated Fluke-owned 732B standard, together with all-

necessary connecting cables and instructions for comparison with your 10 V
reference standard.

2. You take a series of readings over a five-day period, and return the results to the

Fluke Standards Laboratory.

3. The Fluke Standards Laboratory assigns a value to your 10 V standard relative to the

NIST legal volt and sends you a report of calibration.

1-11. 742A Series Resistance Standards

The calibrator uses 1 Ω and 10 kΩ resistor standards such as the 742A Series in its semi­automated calibration procedure to establish external traceability of resistance and
current. Chapter 7 describes this procedure.

1

The 742A Resistance Standards, which are constructed of arrays of Fluke wirewound
precision resistors, are ideally suited as support standards for the calibrator. Stability of
the resistance transfer standards and their temperature coefficients make them ideal for
easy transport to and operation in the calibrator’s working environment.

1-12. Wideband AC Module (Option 5700A-03) Calibration Support

The Wideband AC Module (Option 5700A-03) requires two kinds of calibration: gain
and flatness. Gain constants are checked and recalibrated as a part of the normal
calibrator semi-automated calibration process.

Since frequency flatness is determined by such stable parameters as circuit geometry and
dielectric constants, flatness of the Wideband AC module has excellent long-term
stability. This stability gives the Wideband AC Module a two-year calibration cycle for
flatness calibration. Flatness calibration is required only infrequently, and can be done
when the calibrator is returned to a standards laboratory for periodic verification. The
5700A/5720A Series II Service Manual contains the wideband flatness calibration
procedure. Chapter 7 of this manual contains the wideband gain calibration procedure.

1-13. Service Centers

A worldwide network of Fluke service centers supports Fluke instruments and assists
customers in many ways. Most service centers have standards and calibration
laboratories certified by local national standards organizations. The following is a partial
list of the services provided by most service centers:

• Repair and certified traceable calibration of all Fluke products.

• Certified traceable calibration of many non-Fluke standards and calibrators.

• Worldwide exchange of calibrator internal modules. Delivery inside the U.S.A. is

typically within 48 hours.

1-7

5700A/5720A Series II

Operators Manual

• Service agreements with the flexibility to suit your needs. These can be a simple

• Training programs and seminars, including laboratory metrology, system

• Application help and consulting, including system design, hardware selection,

• Replacement parts inventory, including recommended spare parts and module kits.

Visit www.fluke.com for locations and phone numbers of authorized Fluke service
centers.

1-14. The Components of the 5700A/5720A Series II Calibrator

The calibrator is configured internally as an automated calibration system, with process
controls and consistent procedures. Internal microprocessors control all functions and
monitor performance, using a switching matrix to route signals between modules.
Complete automatic internal diagnostics, both analog and digital, confirm operational
integrity.

warranty extension or an agreement that includes on-site support. Calibration service
agreements are also available in many areas.

applications, and product maintenance.

custom software, site evaluation and installation.

Reference amplifiers maintain dc accuracy and stability. Of all technologies available,
reference amplifiers have the lowest noise and best stability. Reference amplifiers in the
calibrator go through special selection processes including long-term aging to ensure
high reliability and performance well within specifications.

The calibrator achieves its exceptional ac voltage accuracy by using a patented Fluke
rms sensor to make real-time AC/DC comparison measurements. The Fluke rms sensor
is similar in principle to the traditional thermal voltage converter, but has a shorter time
constant, virtually no reversal error, higher signal-to-noise ratio, and better frequency
response. In the calibrator, one Fluke rms sensor serves as an AC/DC transfer standard to
develop gain and flatness correction constants during calibration. The second Fluke rms
sensor continuously monitors and corrects output voltage during operation.

A patented 26-bit digital-to-analog converter (dac) provides the calibrator with the
ability to precisely vary its output. This is a pulse-width-modulated dac with linearity
typically better than 0.2 ppm of full scale. As with the other internal functions, the
linearity of the dac is automatically checked during calibration and analog diagnostics.

1-15. Calibrating the 5700A/5720A Series II Calibrator

The traditional practice of returning a calibrator to a standards laboratory at regular
intervals for a full calibration is time consuming, expensive, and disruptive to the task to
which the calibrator is being applied. Moreover, it leaves gaps in confidence. You must
rely on manufacturer’s specifications to determine if a calibrator will perform acceptably
in an operating environment outside the lab. Also, you must assume that drift is
predictable enough so that performance is within limits between recalls.

1-8

The 5700A/5720A Series II Calibrator makes use of Fluke design breakthroughs in the
use of internal check standards and measurement systems. As a result, it can be
completely calibrated in place to full specifications using a small number of convenient,
portable, environmentally tolerant standards available from Fluke. As you will see
below, this procedure is traceable to military standard requirements.

Introduction and Specifications

Calibrating the 5700A/5720A Series II Calibrator

When manufactured, each calibrator is calibrated and thoroughly verified with process
metrology and calibration standards traceable to the U.S. National Bureau of Standards.
A certificate of calibration is included.

A calibration verification procedure described in the 5700A/5720A Series II Service
Manual is recommended every two years or as required by your established policies.
This procedure involves no adjustments. It simply ensures internal processes are in
control, and establishes parallel external traceability paths for internal functions such as
ac transfers that are never adjusted or corrected.

Figure 1-1 illustrates the time and money that can be saved by using the 5700A/5720A
Series II calibration support plan recommended by Fluke. Depending on your policies,
you may initially decide to perform calibration verification more often. The calibrator
makes this unnecessary and offers you a practical way to collect data unavailable with a
traditional calibrator design about performance between calibrations.

TRADITIONAL CALIBRATOR CALIBRATION

CALIBRATION CYCLE

1

COST $

COST $

TIME

5700A/5720A SERIES II CALIBRATION

CALIBRATION CYCLE

TIME

Figure 1-1. Time and Costs: Calibrator Calibration

1-9

5700A/5720A Series II

Operators Manual

1-16. The Calibration Process

Calibration requires only three external standards: 10 V, 1 Ω, and 10 kΩ.
Environmentally-controlled internal check standards provide the primary reference
points. A stored table of calibration constants defines additional reference points for
controlling the output. Traceable calibration and adjustment to the specified level of
performance is accomplished in a semi-automated process that revises this table.

When you finish calibration, but before you save the new constants, the calibrator
presents you with the proposed adjustments as +/- ppm of range and percentage change
in specification for each range and function. You can print a list of changes through the
serial (RS-232C) port, or send them to a computer through either the serial port or the
IEEE-488 port. Also on completion of calibration, the calibrator displays the largest
proposed change.

Calibration can be completed as far as deriving and printing the proposed adjustments
without changing the setting of the rear panel CALIBRATION switch; however, the
switch must be set to ENABLE to store the changes in nonvolatile memory and make
them effective. The switch is recessed to allow the metrologist to cover it with a
calibration sticker to guarantee calibrator integrity.

1-17. Establishing Traceability

Traceability to national standards is established as follows:

• Except for the internal AC/DC transfer standard, the internal check standards are

directly calibrated by traceable external standards every time the 5700A/5720A
Series II is calibrated.

• The internal AC/DC transfer standard is never adjusted, so its traceability is not

disturbed by calibration. Infrequent verification is done in the traditional way, by
comparing selected ac voltage outputs with an external dc voltage standard through
an external ac/dc transfer standard. Fluke recommends this is done every two years
or as determined by the policy of your organization.

• Infrequent independent verification is also performed on stable parameters, such as

frequency flatness, determined more by circuit geometry and dielectric constants
than time.

1-18. Calibration Reports

The calibrator stores two sets of calibration constants: the set currently in use and the old
set from the previous calibration. This gives the calibrator the ability at any time to
produce a calibration report of the differences between the present settings and the
settings that were in effect before the last calibration. The report shows changes for each
range and function in +/- ppm of range and in percentage of specification limit. You can
print the report or send it to a host computer through either the RS-232-C or IEEE-488
interface.

1-10

If you request a calibration report after doing calibration but before saving the new
constants, the report shows proposed changes to the calibration constants relative to the
previously stored settings.

1-19. Calibration Check

Checking the calibration takes about an hour, and provides you with a means of

documenting the calibrator’s performance of a between calibrations. Calibration
checking is similar to calibration, except internal check standards are used as primary
references (no external standards are needed), and changes cannot be stored. The process
produces a report similar to normal calibration, showing drift relative to internal check
standards. Because cal check does not change stored calibration constants, there is no
need to enable the rear panel CALIBRATION switch. Therefore, an external computer
can do the procedure unattended.

1-20. Developing a Performance History

A Fluke specification is a set of performance limits that all products must meet. To
maintain consistent quality, Fluke calibrators are specified with enough margin to
include temperature, line, and load extremes, plus additional margin for production. This
means that a typical 5700A/5720A Series II calibrator in a typical environment operates
inside 50 % of specification limits. For some exacting applications, it can be helpful to
know just how accurately a particular calibrator operates. The proper way to do this is to
accumulate a performance history by calibrating regularly and recording results on a
control chart.

Introduction and Specifications

Calibration Check

1

Calibrating regularly and recording the results on a control chart is tedious and requires a
large array of equipment. The calibrator’s calibration check feature is an alternative with
some distinct advantages:

• Calibrated check standards are already programmed into the unit. You do not have to

use external standards.

• The process is consistent and automatic: it does not require an operator’s assistance.
Each calibration check produces a new set of data points for accumulating a historical

record. When this process is externally automated, significant history can be
accumulated much faster than with a manual calibration.

1-21. Range Calibration

After calibration, you can make further fine adjustments to each range. Range
adjustments are optional; they are not necessary to meet total uncertainty specifications.
However, they do allow you to align your calibrator closer to your standards.

Before you do range calibration, you must first use the calibrator’s semi-automated
calibration procedure. This is to calibrate the ranges that will not be adjusted. It also
performs an initial adjustment for each range, and supplies flatness corrections for ac
functions.

1-22. DC Zeros Calibration

To ensure the validity of the specifications, a dc zeros calibration must be performed at
least every 30 days. If more than 30 days elapse without a dc zeros calibration a warning
message appears. This procedure does not require any external equipment or connections
and takes approximately 2.5 minutes to complete.

1-11

5700A/5720A Series II

Operators Manual

1-23. Specifications

The 5700A/5720A Series II Calibrators are verified and calibrated at the factory prior to
shipment to ensure they meet the accuracy standards required for all certified calibration
laboratories. By calibrating to the specifications in this chapter, you can maintain the
high performance level throughout the life of your calibrator.

Specifications are valid after a warm-up period of twice the time the calibrator has been
turned off, up to a maximum of 30 minutes. For example, if the calibrator has been
turned off for five minutes, the warm-up period is ten minutes.

1-24. Specification Confidence Levels

You calibrator’s performance level is ensured by regular calibration to the primary
performance specifications, which are provided at both the 99 % and 95 % confidence
levels. The 95 % confidence level will provide an accuracy that will often surpass the
accuracy requirements for meeting Tag 4 standards, or a coverage factor of 2.
Calibration at the 99 % confidence level is also available for those applications that
require a confidence factor for the specifications that is higher than 95 %. For
information on selecting the confidence level, refer to Chapter 4.

The tables in this chapter provide specifications at both the 95 % and 99 % confidence
levels for the 5700A/5720A Series II Calibrators. Included with these tables are
operating specifications for using the calibrator with the Wideband AC Module (Option
5700A-03) and the 5725A Amplifier.

1-25. Using Absolute and Relative Uncertainty Specifications

To evaluate the 5700A/5720A Series II coverage of your calibration workload, use the
Absolute Uncertainty specifications. Absolute uncertainty includes stability, temperature
coefficient, linearity, line and load regulation, and the traceability to external standards.
You do not need to add anything to absolute uncertainty to determine the ratios between
the calibrator’s uncertainties and the uncertainties of your calibration workload.

Relative uncertainty specifications are provided for enhanced accuracy applications.
These specifications apply when range constants are adjusted (see “Range Calibration”).
To calculate absolute uncertainty, you must combine the uncertainties of your external
standards and techniques with relative uncertainty.

1-26. Using Secondary Performance Specifications

Secondary performance specifications and operating characteristics are included in
uncertainty specifications. They are provided for special calibration requirements such as
stability or linearity testing.

1-12

1-27. DC Voltage Specifications

Table 1-2. 5720A Series II DC Voltage Specifications: 99 % and 95 % Confidence Levels

5720A

99%

99 % Confidence Level

Introduction and Specifications

DC Voltage Specifications

1

Absolute Uncertainty

± 5 °C from calibration temperature

Range Resolution

220 mV 10 nV 0 5 + 0.5 7 + 0.5 0 8 + 0.5 0 9 + 0.5 0 2 + 0.4 2.5 + 0.4

2.2 V 100 nV 3.5 + 0.8 4 + 0.8 4.5 + 0.8 0 6 + 0.8 0 2 + 0.8 2.5 + 0.8
11 V 1 µV 2.5 + 3 3 + 3 3.5 + 3 0 4 + 3 0 1 + 3 1.5 + 3
22 V 1 µV 2.5 + 5 3 + 5 3.5 + 5 0 4 + 5 0 1 + 5 1.5 + 5
220 V 10 µV 3.5 + 50 4 + 50 0 5 + 50 06 + 50 02 + 50 2. 5 + 50
1100 V 100 µV 0 5 + 500 6 + 500 0 7 + 500 08 + 500 2.5 + 400 03 + 400

For fields strengths >1 V/m but ≤3 V/m,

add 0.01% of range.

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

± (ppm output + µV) ± (ppm output + µV)

Relative Uncertainty

± 1 °C

5720A

95%

95% Confidence Level

Relative Uncertainty

± 1 °C

Range Resolution

Absolute Uncertainty

± 5 °C from calibration temperature

For fields strengths >1 V/m but ≤3 V/m,

add 0.01 % of range.

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

± (ppm output + µV) ± (ppm output + µV)

220 mV 10 nV 4 + 0.4 0 6 + 0.4 6.5 + 0.4 7.5 + 0.4 1.6 + 0.4 02 + 0. 4

2.2 V 100 nV 3 + 0.7 3.5 + 0.7 0 4 + 0.7 05 + 0.7 1.6 + 0.7 02 + 0.7
11 V 1 µV 2 + 2.5 2.5 + 2.5 03 + 2.5 3.5 + 2.5 0.8 + 2.5 1.2 + 2.5
22 V 1 µV 2 + 4 2.5 + 4 03 + 4 3.5 + 4 0.8 + 4 1.2 + 4
220 V 10 µV 3 + 40 3.5 + 40 04 + 40 0 5 + 40 1.6 + 40 02 + 40
1100 V 100 µV 4 + 400 4.5 + 400 06 + 400 6.5 + 400 02 + 400 2.4 + 400

1-13

5700A/5720A Series II

Operators Manual

Table 1-3. 5700A Series II DC Voltage Specifications: 99 % and 95 % Confidence Levels

5700A

99%

99 % Confidence Level

Absolute Uncertainty

± 5 °C from calibration temperature

Range Resolution

220 mV 10 nV 6.5 + .75 7 + .75 08 + .75 09 + .8 2.5 + .5 04 + .5

2.2 V 100 nV 3.5 + 1.2 6 + 1.2 07 + 1.2 08 + 1.2 2.5 + 1.2 04 + 1.2
11 V 1 µV 3.5 + 3 5 + 4 07 + 4 08 + 4 1.5 + 3 3.5 + 4
22 V 1 µV 3.5 + 6 5 + 8 07 + 8 08 + 8 1.5 + 6 3.5 + 8
220 V 10 µV 05 + 100 6 + 100 08 + 100 09 + 100 2.5 + 100 04 + 100
1100 V 100 µV 07 + 600 8 + 600 10 + 600 11 + 600 03 + 600 4.5 + 600

For fields strengths >1 V/m but ≤3 V/m,

add 0.01 % of range.

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

± (ppm output + µV) ± (ppm output + µV)

Relative Uncertainty

± 1 °C

5700A

95%

95 % Confidence Level

Relative Uncertainty

± 1 °C

Range Resolution

Absolute Uncertainty

± 5 °C from calibration temperature

For fields strengths >1 V/m but ≤3 V/m,

add 0.01 % of range.

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

± (ppm output + µV) ± (ppm output + µV)

1-14

220 mV 10 nV 5.5 + 0.6 6 + 0.6 7 + 0. 6 8 + 0.6 02 + 0.4 3.5 + 0.4

2.2 V 100 nV 3.5 + 1 5 + 1 6 + 1 7 + 1 02 + 1 3.5 + 1
11 V 1 mV 03 + 3.5 4 + 3.5 6 + 3.5 7 + 3.5 1.2 + 3 03 + 3.5
22 V 1 mV 03 + 6.5 4 + 6.5 6 + 6.5 7 + 6.5 1.2 + 6 03 + 7
220 V 10 m V 04 + 80 5 + 80 7 + 80 8 + 80 02 + 80 3.5 + 80
1100 V 100 mV 06 + 500 7 + 500 8 + 500 9 + 500 2.4 + 500 04 + 500

Introduction and Specifications

DC Voltage Specifications

Table 1-4. DC Voltage Secondary Performance Specifications and Operating Characteristics

1

Range Stability [Note 1]

220 mV

2.2 V
11 V
22 V
220 V
1100 V

± 1 °C

24 Hours 40°-50 °C pk-pk RMS

± (ppm output + µV) ± (ppm output + µV)/°C ± (ppm output + µV) µV

0.3 + 0.3

0.3 + 1

0.3 + 2.5

0.4 + 5

0.5 + 40

0.5 + 200

Temperature Coefficient

Adder [Note 2]

10 °-40 °C 0 °-10 °C

00.4 + 0.1

00.3 + 0.1

0.15 + 0.2

00.2 + 0.4

00.3 + 5

00.5 + 10

and

1.5 + 0.5

1.5 + 2

0 1 + 1.5

1.5 + 3

1.5 + 40

0 3 + 200

Linearity

± 1 °C

0 1 + 0.2
0 1 + 0.6

0.3 + 2

0.3 + 4

0 1 + 40
0 1 + 200

Bandwidth

0.1-10 Hz

0.15 + 0.1

0.15 + 0.4

0.15 + 2

0.15 + 4

0.15 + 60

0.15 + 300

Noise

Bandwidth

10 Hz-10 kHz

5
15
50
50
150
500

Notes:

1. Stability specifications are included in the Absolute Uncertainty values in the primary specification
tables.

2. Temperature coefficient is an adder to uncertainty specifications that does

not

apply unless operating

more than ±5 °C from calibration temperature.

Minimum output: 0 V for all ranges, except 100 V for 1100 V range
Maximum load: 50 mA for 2.2 V through 220 V ranges; 20 mA for 1100 V range; 50 Ω output impedance

on 220 mV range; all ranges <1000 pF, >25 Ω

Load regulation: <(0.2 ppm of output + 0.1ppm of range), full load to no load
Line regulation: <0.1 ppm change, ± 10 % of selected nominal line
Settling time: 3 seconds to full accuracy; + 1 second for range or polarity change; + 1 second for 1100 V

range

Overshoot: <5 %
Common mode rejection: 140 dB, DC to 400 Hz
Remote sensing: Available 0 V to ±1100 V, on 2.2 V through 1100 V ranges

1-15

5700A/5720A Series II

Operators Manual

1-28. AC Voltage Specifications

5720A

99%

99 % Confidence Level

Range Resolution Frequency

2.2 mV 1 nV

22 mV 10 nV

220 mV 100 nV

2.2 V 1 mV

22 V 10 mV

220 V

[Note 2]

1100 V

5725A Amplifier:

1100 V

750 V

Notes: 1. Maximum output 250V from 15-50 Hz.

2. See Volt-Hertz capability in Figure 1-2.

Table 1-5. 5720A Series II AC Voltage Specifications: 99 % Confidence Level

Absolute Uncertainty

± 5 °C from calibration temperature

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

Hz ± (ppm output + µV) ± (ppm output + µV)

100 mV

1 mV

[Note 1]

1 mV

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

0015 - 50
0050 - 1 k

0040 - 1 k
001 k - 20 k
020 k - 30 k

030 k - 50 k
050 k - 100k

0250 + 5
0100 + 5
0085 + 5
0220 + 5
0500 + 6

1000 + 12
1400 + 25
2900 + 25

0250 + 5
0100 + 5
0085 + 5
0220 + 5
0500 + 6

1000 + 12
1400 + 25
2900 + 25

0250 + 15
0100 + 8
0085 + 8
0220 + 8
0500 + 20
0850 + 25

1400 + 30
2700 + 60

0250 + 50
0095 + 20
0045 + 10
0080 + 12
0120 + 40
0380 + 100

1000 + 250
1600 + 400

0250 + 500
0095 + 200
0045 + 70
0080 + 120
0110 + 250
0300 + 800

1000 + 2500
1500 + 4000

0270 + 5
0105 + 5
0090 + 5
0230 + 5
0540 + 6

1200 + 12
1500 + 25
3100 + 25

0270 + 5
0105 + 5
0090 + 5
0230 + 5
0540 + 6

1200 + 12
1500 + 25
3100 + 25

0270 + 15
0105 + 8
0090 + 8
0230 + 8
0540 + 20
0900 + 25

1500 + 30
2900 + 60

0270 + 50
0100 + 20
0047 + 10
0085 + 12
0125 + 40
0420 + 100

1100 + 250
1800 + 600

0270 + 500
0100 + 200
0047 + 70
0085 + 120
0115 + 250
0310 + 800

1100 + 2500
1600 + 4000

0290 + 5
0110 + 5
0095 + 5
0240 + 5
0570 + 6

1250 + 12
1600 + 25
3250 + 25

0290 + 5
0110 + 5
0095 + 5
0240 + 5
0570 + 6

1250 + 12
1600 + 25
3250 + 25

0290 + 15
0110 + 8
0095 + 8
0240 + 8
0570 + 20

1000 + 25
1600 + 30
3100 + 60

0290 + 50
0105 + 20
0050 + 10
0087 + 12
0127 + 40
0460 + 100

1150 + 250
1900 + 400

0290 + 500
0105 + 200
0050 + 70
0087 + 120
0117 + 250
0320 + 800

1150 + 2500
1700 + 4000

00300 + 5
00115 + 5
00100 + 5
00250 + 5
00600 + 6
01300 + 12
01700 + 25
03400 + 25

00300 + 5
00115 + 5
00100 + 5
00250 + 5
00600 + 6
01300 + 12
01700 + 25
03400 + 25

00300 + 15
00115 + 8
00100 + 8
00250 + 8
00600 + 20
01100 + 25
01700 + 30
03300 + 60

00300 + 50
00110 + 20
00052 + 10
00090 + 12
00130 + 40
00500 + 100
01200 + 250
02000 + 400

00300 + 500
00110 + 200
00052 + 70
00090 + 120
00120 + 250
00325 + 800
01200 + 2500
01800 + 4000

± (ppm output + mV) ± (ppm output + mV)

0250 + 5
0095 + 2
0057 + 0.7
0090 + 1.2
0160 + 3
0900 + 20

5000 + 50
8000 + 100

0300 + 20
0070 + 4

0075 + 4
0105 + 6
0230 + 11

0230 + 11
0600 + 45

0270 + 5
0100 + 2
0060 + 0.7
0095 + 1.2
0170 + 3

1000 + 20
5200 + 50
9000 + 100

0320 + 20
0075 + 4

0080 + 4
0125 + 6
0360 + 11

0360 + 11

1300 + 45

0290 + 5
0105 + 2
0062 + 0.7
0097 + 1.2
0175 + 3

1050 + 20
5300 + 50
9500 + 100

0340 + 20
0080 + 4

0085 + 4
0135 + 6
0440 + 11

0440 + 11

1600 + 45

00300 + 5
00110 + 2
00065 + 0.7
00100 + 1.2

00 180 + 3
0 1100 + 20
0 5400 + 50

10,000 + 100

00 360 + 20

00085 + 4

000 90 + 4
00 165 + 6
00 600 + 11

00600 + 11
02300 + 45

Relative Uncertainty

± 1 °C

0250 + 5
0100 + 5
0060 + 5
0085 + 5
0200 + 6
0350 + 12
0800 + 25

2700 + 25

0250 + 5
0100 + 5
0060 + 5
0085 + 5
0200 + 6
0350 + 12
0800 + 25

2700 + 25

0250 + 15
0100 + 8
0060 + 8
0085 + 8
0200 + 20
0350 + 25
0800 + 30

2600 + 60

0250 + 50
0095 + 20
0030 + 10
0070 + 12
0100 + 40
0270 + 100
0900 + 250

1200 + 400

0250 + 500
0095 + 200
0030 + 70
0070 + 120
0100 + 250
0270 + 800
0900 + 2500

1300 + 4000

0250 + 5
0095 + 2
0045 + 0.7
0075 + 1.2
0140 + 3
0600 + 20

4500 + 50
8000 + 100

0300 + 20
0050 + 4

0050 + 4
0085 + 6
0160 + 11

0160 + 11
0380 + 45

0270 + 5
0105 + 5
0065 + 5
0095 + 5
0220 + 6
0400 + 12

1000 + 25
3000 + 25

0270 + 5
0105 + 5
0065 + 5
0095 + 5
0220 + 6
0400 + 12

1000 + 25
3000 + 25

0270 + 15
0105 + 8
0065 + 8
0095 + 8
0220 + 20
0400 + 25

1000 + 30
2800 + 60

0270 + 50
0100 + 20
0040 + 10
0075 + 12
0105 + 40
0290 + 100

1000 + 250
1300 + 400

0270 + 500
0100 + 200
0040 + 70
0075 + 120
0105 + 250
0290 + 800

1000 + 2500
1400 + 4000

0270 + 5
0100 + 2
0050 + 0.7
0080 + 1.2
0150 + 3
0700 + 20

4700 + 50
8500 + 100

0320 + 20
0055 + 4

0055 + 4
0105 + 6
0320 + 11

0320 + 11

1200 + 45

1-16

Table 1-6. 5720A Series II AC Voltage Specifications: 95 % Confidence Level

5720A

95%

95 % Confidence Level

Range Resolution Frequency

Hz ± (ppm output + µV) ± (ppm output + µV)

0010 - 20
0020 - 40
0040 - 20 k

2.2 mV 1 nV

22 mV 10 nV

220 mV 100 nV

2.2 V 1 mV

22V 10 mV

220 V

[Note 2]

1100 V

1100 V

750 V

Notes: 1. Maximum output 250V from 15-50 Hz.

100 mV

1 mV

[Note 1]

1 mV

2. See Volt-Hertz capability in Figure 1-2.

020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

00010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

0010 - 20
0020 - 40
0040 - 20k
020k - 50k
050k - 100k

100k - 300k
300k - 500k
500k - 1M

± (ppm output + mV) ± (ppm output + mV)

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

0015 - 50
0050 - 1 k

0040 - 1 k
001 k - 20 k
020 k - 30 k
030 k - 50 k
050 k - 100 k

Introduction and Specifications

AC Voltage Specifications

Absolute Uncertainty

± 5 °C from calibration temperature

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

0200 + 4
0080 + 4
0070 + 4
0170 + 4
0400 + 5
0300 + 10

1100 + 20
2400 + 20

0200 + 4
0080 + 4
0070 + 4
0170 + 4
0400 + 5
0300 + 10

1100 + 20
2400 + 20

0200 + 12
0080 + 7
0070 + 7
0170 + 7
0400 + 17
0700 + 20

1100 + 25
2400 + 45

0200 + 40
0075 + 15
0037 + 8
0065 + 10
0100 + 30
0300 + 80
0800 + 200

1300 + 300

0200 + 400
0075 + 150
0037 + 50
0065 + 100
0090 + 200
0250 + 600
0800 + 2000

1200 + 3200

0200 +4
0075 + 1.5
0045 + 0.6
0070 + 1
0120 + 2.5
0700 + 16

4000 + 40
6000 + 80

0240 + 16
0055 + 3.5

0220 + 4
0085 + 4
0075 + 4
0180 + 4
0460 + 5
0900 + 10

1200 + 20
2500 + 20

0220 + 4
0085 + 4
0075 + 4
0180 + 4
0460 + 5
0900 + 10

1200 + 20
2500 + 20

0220 + 12
0085 + 7
0075 + 7
0180 + 7
0420 + 17
0750 + 20

1200 +25
2500 + 45

0220 + 40
0080 + 15
0040 + 8
0070 + 10
0105 + 30
0340 + 80
0900 + 200

1500 + 300

0220 + 400
0080 + 150
0040 + 50
0070 + 100
0095 + 200
0260 + 600
0900 + 2000

1300 + 3200

0220 + 4
0080 + 1.5
0047 + 0.6
0075 + 1
0130 + 2.5
0800 + 16

4200 + 40
7000 + 80

0260 + 16
0060 + 3.5

0230 + 4
0087 + 4
0077 + 4
0190 + 4
0480 + 5

1000 + 10
1300 + 20
2600 + 20

0230 + 4
0087 + 4
0077 + 4
0190 + 4
0480 + 5

1000 + 10
1300 + 20
2600 + 20

0230 + 12
0087 + 7
0077 + 7
0190 + 7
0440 + 17
0800 + 20

1300 + 25
2600 + 45

0230 + 40
0085 + 15
0042 + 8
0073 + 10
0107 + 30
0380 + 80
0950 + 200

1600 + 300

0230 + 400
0085 + 150
0042 + 50
0073 + 100
0097 + 200
0270 + 600
0900 + 2000

1400 + 3200

0230 + 4
0085 + 1.5
0050 + 0.6
0077 + 1
0140 + 2.5
0850 + 16

4300 + 40
7500 + 80

0280 + 16
0065 + 3.5

0240 + 4
0090 + 4
0080 + 4
0200 + 4
0500 + 5

1050 + 10
1400 + 20
2700 + 20

0240 + 4
0090 + 4
0080 + 4
0200 + 4
0500 + 5

1050 + 10
1400 + 20
2700 + 20

0240 + 12
0090 + 7
0080 + 7
0200 + 7
0460 + 17
0900 + 20

1400 + 25
2700 + 45

0240 + 40
0090 + 15
0045 + 8
0075 + 10
0110 + 30
0420 + 80

1000 + 200
1700 + 300

0240 + 400
0090 + 150
0045 + 50
0075 + 100
0100 + 200
0275 + 600

1000 + 2000
1500 + 3200

0240 + 4
0090 + 1.5
0052 + 0.6
0080 + 1
0150 + 2.5
0900 + 16

4400 + 40
8000 + 80

0300 + 16
0070 + 3.5

5725A Amplifier:

0075 + 4
0105 + 6
0230 + 11
0230 + 11
0600 + 45

0080 + 4
0125 + 6
0360 + 11
0360 + 11

1300 + 45

0085 + 4
0135 + 6
0440 + 11
0440 + 11

1600 + 45

0090 + 4
0165 + 6
0600 + 11
0600 + 11

2300 + 45

Relative Uncertainty

± 1 °C

0200 + 4
0080 + 4
0050 + 4
0070 + 4
0160 + 5
0280 + 10
0650 + 20

2100 + 20

0200 + 4
0080 + 4
0050 + 4
0070 + 4
0160 + 5
0280 + 10
0650 + 20

2100 + 20

0200 + 12
0080 + 7
0050 + 7
0070 + 7
0160 + 17
0280 + 20
0650 + 25

2100 + 45

0200 + 40
0075 + 15
0025 + 8
0055 + 10
0080 + 30
0230 + 80
0700 + 200

1000 + 300

0200 + 400
0075 + 150
0025 + 50
0055 + 100
0080 + 200
0250 + 600
0700 + 2000

1100 + 3200

0200 + 4
0075 + 1.5
0035 + 0.6
0060 + 1
0110 + 2.5
0500 + 16

3600 + 40
6500 + 80

0240 + 16
0040 + 3.5

0050 + 4
0085 + 6
0160 + 11
0160 + 11
0380 + 45

1

0220 + 4
0085 + 4
0055 + 4
0080 + 4
0180 + 5
0320 + 10
0800 + 20

2400 + 20

0220 + 4
0085 + 4
0055 + 4
0080 + 4
0180 + 5
0320 + 10
0800 + 20

2400 + 20

0220 + 12
0085 + 7
0055 + 7
0080 + 7
0180 + 17
0320 + 20
0800 + 25

2400 + 45

0220 + 40
0080 + 15
0035 + 8
0060 + 10
0085 + 30
0250 + 80
0800 + 200

1100 + 300

0220 + 400
0080 + 150
0035 + 50
0060 + 100
0085 + 200
0270 + 600
0800 + 2000

1200 + 3200

0220 + 4
0080 + 1.5
0040 + 0.6
0065 + 1
0120 + 2.5
0600 + 16

3800 + 40
7000 + 80

0260 + 16
0045 + 3.5

0055 + 4
0105 + 6
0320 + 11
0320 + 11

1200 + 45

1-17

5700A/5720A Series II

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

12,500 + 220

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Operators Manual

5700A

99%

99 % Confidence Level

Range Resolution Frequency

2.2 mV 1 nV

22 mV 10 nV

220 mV 100 nV

2.2 V 1 mV

22 V 10 mV

220 V

[Note 2]

1100 V 1 mV

5725A Amplifier:

1100 V 1 mV 00040 - 1 k

750 V 0030 k - 50 k

Notes: 1. Maximum output 250V from 15-50 Hz.

2. See Volt-Hertz capability in Figure 1-2.

Table 1-7. 5700A Series II AC Voltage Specifications: 99 % Confidence Level

Absolute Uncertainty

± 5 °C from calibration temperature

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

0 500 + 5

00200 + 5

0 100 + 5
0 340 + 5

0 800 + 8
01100 + 15
01500 + 30

4000 + 40

0 500 + 6

0 200 + 6

0100 + 6

0340 + 6

0800 + 8

1100 + 15
01500 + 30
04000 + 40

0500 + 16

0 200 + 10

0 095 + 10

0 300 + 10

0 750 + 30

0 940 + 30

1500 + 40

3000 + 100

0 500 + 100

0 150 + 30

00 70 + 7

0 120 + 20

0 230 + 80

0 400 + 150

1000 + 400

2000 + 1000

0 500 + 1000

0 150 + 300

00 70 + 70

0 120 + 200

0 230 + 400

0 500 + 1700

1200 + 5000

2600 + 9000

0 550 + 5
0 220 + 5
0 110 + 5
0 370 + 5

0 900 + 8
01200 + 15
01700 + 30
04400 + 40

0 550 + 6

0 220 + 6

0 110 + 6

0 370 + 6

0 900 + 8

01200 + 15
01700 + 30
04400 + 40

0 550 + 16
0 220 + 10
0 100 + 10
0 330 + 10
0 800 + 30

1000 + 30
01700 + 40
03300 + 100

0 550 + 100

0 170 + 30

00 75 + 7

0 130 + 20

0 250 + 80

0 440 + 150

1100 + 400

2200 + 1000

0 550 + 1000

0 170 + 300

00 75 + 70

0 130 + 200

0 250 + 400

0 550 + 1700

1300 + 5000

2800 + 9000

0 600 + 5
0 230 + 5
0 120 + 5
0 390 + 5
0 950 + 8
1300 + 15

01700 + 30

4700 + 40

00600 + 6

0 230 + 6
0 120 + 6
0 390 + 6
0 950 + 8
1300 + 15
1700 + 30
4700 + 40

0 600 + 16
0 230 + 10
0 110 + 10
0 350 + 10
0 850 + 30

01100 + 30

1700 + 40
3500 + 100

0 600 + 100
0 170 + 30
00 80 + 7
0 140 + 20
0 270 + 80
0 470 + 150
1200 + 400
2300 + 1000

0 600 + 1000
0 170 + 300
00 80 + 70
0 140 + 200
0 270 + 400
0 550 + 1700
1300 + 5000
2900 + 9000

0 600 + 5
0 240 + 5
0 120 + 5
0 410 + 5
0950 + 8
1300 + 15
1800 + 30
4800 + 40

0600 + 6
0 240 + 6
0 120 + 6
0 410 + 6
0 950 + 8
1300 + 15
1800 + 30
4800 + 40

0 600 + 16
00240 + 10
00110 + 10
00360 + 10

0900 + 30
01100 + 30
01800 + 40
03600 + 100

0 600 + 100

0 180 + 30

00 85 + 7

0 140 + 20

0 280 + 80

0 480 + 150

1200 + 400

2400 + 1000

0 600 + 1000

0 180 + 300

00 85 + 70

0 140 + 200

0 280 + 400

0 600 + 1700

1400 + 5000

3000 + 9000

± (ppm output + mV) ± (ppm output + mV)

0 500 + 10
0 150 + 3
00 75 + 1
0 200 + 4
0 500 + 10
1500 + 110
5000 + 110

12,000 + 220

0 400 + 20
00 75 + 4

00 75 + 4
0 105 + 6
0 230 + 11
0 230 + 11
0 600 + 45

0 550 + 10
0 170 + 3
00 80 + 1
0 220 + 4
0 550 + 10
1500 + 110
5200 + 110

12,500 + 220

00420 + 20

00 80 + 4

00 80 + 4
0 125 + 6
0 360 + 11
0 360 + 11
1300 + 45

0600 + 10
0 170 + 3
00 85 + 1
0 240 + 4
0 600 + 10
1600 + 110
5300 + 110

00440 + 20

00 85 + 4

00 85 + 4
0 135 + 6
0 440 + 11
0 440 + 11
1600 + 45

0 600 + 10

0 180 + 3

00 90 + 1

0 250 + 4

0 600 + 10

1600 + 110

5400 + 110

13,000 + 220

00460 + 20

00 90 + 4

00 90 + 4

0 165 + 6

0 600 + 11

0 600 + 11

2300 + 45

100 mV

[Note 1]

Hz ± (ppm output + µV) ± (ppm output + µV)

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k
500 k - 1 M

00015 - 50
00050 - 1 k

0001 k - 20 k
0020 k - 30 k

0050 k - 100 k

Relative Uncertainty

± 1 °C

00 500 + 5
00 200 + 5
000 60 + 5
00 100 + 5
00 220 + 8
00 400 + 15

01000 + 30

00 400 + 30
00 500 + 6

00 200 + 6
000 60 + 6
00 100 + 6
00 220 + 8
00 400 + 15

01000 + 30

0 4000 + 30
00 500 + 16

00200 + 10
00060 + 10
00100 + 10
00220 + 30
00400 + 30
01000 + 40
03000 + 100

00 500 + 100
00 150 + 30
000 40 + 7
00 100 + 20
00 200 + 80
00 400 + 150
0 1000 + 400
0 2000 + 1000

00 500 + 1000
00 150 + 300
000 40 + 70
00 100 + 200
00 200 + 400

00500 + 1700
01200 + 5000
02600 + 9000

00 500 + 10
00 150 + 3
000 45 + 1
00 100 + 1
00 300 + 10

01500 + 110

0 5000 + 110

12,000 + 220
00400 + 20

000 50 + 4

000 50 + 4
000 85 + 6
00 160 + 11
00 160 + 11
00 380 + 45

12,000 + 220

0 550 + 5
0220 + 5
0 065 + 5
0 110 + 5
0 240 + 8
0 440 + 15
1100 + 30
4400 + 30

0 550 + 6
0 220 + 6
00 65 + 6
0 110 + 6
0 240 + 8
0 440 + 15
1100 + 30
4400 + 30

00550 + 16
00220 + 10
00065 + 10
00110 + 10
00240 + 30
00440 + 30
01100 + 40
03300 + 100

0 550 + 100
0 170 + 30
00 45 + 7
0 110 + 20
0 220 + 80
0 440 + 150
1100 + 400
2200 + 1000

0 550 + 1000
0 170 + 300
00 45 + 70
0 110 + 200
0 220 + 400
0 550 + 1700
1300 + 5000
2800 + 9000

0 550 + 10
0 170 + 3
00 50 + 1
0 110 + 1
0 330 + 10
1500 + 100
5200 + 110

00420 + 20

00 55 + 4

00 55 + 4
0 105 + 6
0 320 + 11
0 320 + 11
1200 + 45

1-18

Table 1-8. 5700A Series II AC Voltage Specifications: 95 % Confidence Level

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

11,500 + 190

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

5700A

95%

95% Confidence Level

Range Resolution Frequency

Hz ± (ppm output + µV) ± (ppm output + µV)

0010 - 20
0020 - 40

2.2 mV 1 nV

22 mV 10 nV

220 mV 100 nV

2.2 V 1 mV

22 V 10 mV

220 V

[Note 2]

1100 V

1100 V

750 V

Notes: 1. Maximum output 250V from 15-50 Hz.

100 mV

1 mV

[Note 1]

1 mV

2. See Volt-Hertz capability in Figure 1-2.

0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k

500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k

500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k

500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k

500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k

500 k - 1 M

± (ppm output + mV) ± (ppm output + mV)

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k

500 k - 1 M

0015 - 50
0050 - 1 k

0040 - 1 k
001 k - 20 k
020 k - 30 k
030 k - 50 k
050 k - 100 k

Introduction and Specifications

AC Voltage Specifications

Absolute Uncertainty

± 5 °C from calibration temperature

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

0 400 + 4.5
0 170 + 4.5
00 85 + 4.5
0 300 + 4.5
0 700 + 7
0 900 + 13
1300 + 25
2800 + 25

0 400 + 5
0 170 + 5
00 85 + 5
0 300 + 5
0 700 + 7
0 900 + 12
1300 + 25
2800 + 25

0 400 + 13
0 170 + 8
00 85 + 8
0 250 + 8
0 700 + 25
0 900 + 25
1300 + 35
2800 + 80

0 400 + 80
0 130 + 25
00 60 + 6
0 105 + 16
0 190 + 70
0 350 + 130
0 850 + 350
1700 + 850

0 400 + 800
0 130 + 250
00 60 + 60
0 105 + 160
0 190 + 350
0 400 + 1500
1050 + 4300
2300 + 8500

0 400 + 8
0 130 + 2.5
00 65 + 0.8
0 170 + 3.5
0 400 + 8
1300 + 90
4300 + 90

10,500 + 190

0 340 + 16
00 65 + 3.5

0 500 + 4.5
0 190 + 4.5
00 95 + 4.5
0 330 + 4.5
0750 + 7
1000 + 13
1500 + 25
3100 + 25

0 500 + 5
0 190 + 5
00 95 + 5
0 330 + 5
0 750 + 7
1000 + 12
1500 + 25
3100 + 25

0 500 + 13
0 190 + 8
00 95 + 8
0 280 + 8
0 750 + 25
1000 + 25
1500 + 35
3100 + 80

0 450 + 80
0 140 + 25
00 65 + 6
0 110 + 16
0 210 + 70
0 390 + 130
0950 + 350
1900 + 850

0 450 + 800
0 140 + 250
00 65 + 60
0 110 + 160
0 210 + 350
0 450 + 1500
1150 + 4300
2500 + 8500

0 450 + 8
0 140 + 2.5
00 70 + 0.8
0 190 + 3.5
0 450 + 8
1400 + 90
4500 + 90

11,000 + 190

00360 + 16

00 70 + 3.5

0 530 + 4.5
0 200 + 4.5
0 100 + 4.5
0 350 + 4.5
0 800 + 7
1050 + 13
1600 + 25
3300 + 25

0 530 + 5
0 200 + 5
0 100 + 5
0 350 + 5
0 800 + 7
1050 + 12
1600 + 25
3300 + 25

0 530 + 13
0 200 + 8
0 100 + 8
0 300 + 8
0 800 + 25
1050 + 25
1600 + 35
3300 + 80

0 480 + 80
0 150 + 25
00 70 + 6
0 115 + 16
0 230 + 70
0 420 + 130
1000 + 350
2100 + 850

0 480 + 800
0 150 + 250
00 70 + 60
0 115 + 160
0 230 + 350
0 470 + 1500
1200 + 4300
2600 + 8500

0 480 + 8
0 150 + 2.5
00 75 + 0.8
0 210 + 3.5
0 480 + 8
1450 + 90
4600 + 90

11,300 + 190

00380 + 16

00 75 + 3.5

0 550 + 4.5
0 210 + 4.5
0 105 + 4.5
0 370 + 4.5
0 850 + 7
1100 + 13
1700 + 25
3400 + 25

0 550 + 5
0 210 + 5
0 105 + 5
0 370 + 5
0 850 + 7
1100 + 12
1700 + 25
3400 + 25

0 550 + 13
0 210 + 8
0 105 + 8
0 320 + 8
0 850 + 25
1100 + 25
1700 + 35
3400 + 80

0 500 + 80
0 160 + 25
00 75 + 6
0 120 + 16
0 250 + 70
0 430 + 130
1050 + 350
2200 + 850

0 500 + 800
0 160 + 250
00 75 + 60
0 120 + 160
0 250 + 350
0 500 + 1500
1250 + 4300
2700 + 8500

0 500 + 8
0 160 + 2.5
00 80 + 0.8
0 220 + 3.5
0 500 + 8
1500 + 90
4700 + 90

00400 + 16

00 80 + 3.5

5725A Amplifier:

00 75 + 4
0 105 + 6
0 230 + 11
0 230 + 11
0 600 + 45

00 80 + 4
0 125 + 6
0 360 + 11
0 360 + 11
1300 + 45

00 85 + 4
0 135 + 6
0 440 + 11
0 440 + 11
1600 + 45

00 90 + 4
0 165 + 6
0 600 + 11
0 600 + 11
2300 + 45

Relative Uncertainty

± 1 °C

00 400 + 4.5
00 170 + 4.5
000 55 + 4.5
000 90 + 4.5
00 210 + 7
00 380 + 13
00 900 + 25
0 2900 + 25

00 400 + 5
00 170 + 5
000 55 + 5
000 90 + 5
00 210 + 7
00 380 + 12

00900 + 25

0 2900 + 25
00 400 + 13

00 170 + 8
000 55 + 8
000 90 + 8
00 210 + 25
00 380 + 25
00 900 + 35
0 2900 + 80

00 400 + 80
00 130 + 25
000 35 + 6
000 85 + 16
00 170 + 70
00 340 + 130
00 850 + 350
0 1700 + 850

00 400 + 800
00 130 + 250
000 35 + 60
000 85 + 160
00 170 + 350
00 400 + 1500
0 1000 + 4300
0 2200 + 8500

00 400 + 8
00 130 + 2.5
000 40 + 0.8
000 85 + 3.5
00 270 + 8
0 1200 + 90
0 4200 + 90

10,500 + 190

00340 + 16
000 45 + 3.5

000 50 + 4
000 85 + 6
00 160 + 11
00 160 + 11
00 380 + 45

11,000 + 190

0 500 + 4.5
0 190 + 4.5
00 60 + 4.5
0 100 + 4.5
0 230 + 7
0 420 + 13
1000 + 25
3200 + 25

0 500 + 5
0 190 + 5
00 60 + 5
0 100 + 5
0 230 + 7
0 420 + 12
1000 + 25
3200 + 25

0 500 + 13
0 190 + 8
00 60 + 8
0 100 + 8
0 230 + 25
0 420 + 25
1000 + 35
3200 + 80

0 450 + 80
0 140 + 25
00 40 + 6
00 95 + 16
0 190 + 70
0 380 + 130
0 950 + 350
1900 + 850

0 450 + 800
0 140 + 250
00 40 + 60
00 95 + 160
0 190 + 350
0 450 + 1500
1100 + 4300
2400 + 8500

0 450 + 8
0 140 + 2.5
00 45 + 0.8
00 95 + 3.5
0 300 + 8
1300 + 90
4500 + 90

00360 + 16

00 50 + 3.5

00 55 + 4
0 105 + 6
0 320 + 11
0 320 + 11
1200 + 45

1

1-19

5700A/5720A Series II

Operators Manual

Table 1-9. AC Voltage Secondary Performance Specifications and Operating Characteristics

Range Frequency 24 Hours 10° -40 ° C 0°-10 °C and

0010 - 20
0020 - 40

2.2 V

22 V

220 V

0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k

500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k

500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k

500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k

500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k

500 k - 1 M

0010 - 20
0020 - 40
0040 - 20 k
020 k - 50 k
050 k - 100 k

100 k - 300 k
300 k - 500 k

500 k - 1 M

0015 - 50
0050 - 1 k

2.2 mV

22 mV

220 mV

1100 V

Note: 1. Stability specifications are included in Absolut e Uncert aint y v alues f or t he primary s pec if ic at ions .

Stability

± 1 °C [Note 1]

Temperature Coefficient Maximum

Distortion

Output Impedance Bandwidth

40°-50 °C

10 Hz-10 MHz

Hz ± µV ±µV/°C Ω± (% output + µV)

5
5
2
2
3
3
5
5
5
5
2
2
3

5
10
15

0.05

0.05

0.05

0.1

0.2

0.3

0.4

0.5

0.2

0.2

0.2

0.4

0.5

0.6
1
1

0.05

0.05

0.05

0.1

0.2

0.3

0.4

0.5

0.3

0.3

0.3

0.5

0.5

0.6
1
1

50

50

00.05 + 10

0.035 + 10

0.035 + 10

0.035 + 10

0.035 + 10

000.3 + 30

000.3 + 30
000 1 + 30

00.05 + 11

0.035 + 11

0.035 + 11

0.035 + 11

0.035 + 11

000.3 + 30

000.3 + 30
000 1 + 30

± (ppm output + µV) ± (ppm output µV)/°C

150 + 20

080 + 15
012 + 2
010 + 2
010 + 2
020 + 4

100 + 10
200 + 20

002 + 1
002 + 1
002 + 1
015 + 2
015 + 4
080 + 5
080 + 5
080 + 5

02 + 1
02 + 1
02 + 1

15 + 2
15 + 4
80 + 5
80 + 5
80 + 5

50

00.05 + 16

0.035 + 16

0.035 + 16

0.035 + 16

0.035 + 16

000.3 + 30

000.3 + 30
000 1 + 30

Load Regulation

±(ppm output+ µV)

150 + 20

080 + 15
012 + 4
015 + 5
015 + 5
030 + 10
070 + 20

150 + 50
150 + 20

080 + 15
012 + 8
015 + 10
015 + 10
030 + 15
070 + 100

150 + 100
150 + 200

080 + 150
012 + 80
015 + 100
015 + 100
030 + 400

100 + 10,000
200 + 20,000

050 + 10
015 + 5
002 + 1
010 + 2
010 + 4
080 + 15
080 + 40
080 + 100

050 + 100
015 + 30
002 + 10
010 + 20
010 + 40
080 + 150
080 + 300
080 + 500

0 50 + 1000
0 15 + 300
00 2 + 80
0 10 + 100
0 10 + 500
0 80 + 600
0 80 + 800
0 80 + 1000

50 + 10
15 + 5
05 + 2
15 + 4
20 + 4
80 + 15
80 + 40
80 + 100
50 + 100
15 + 40
04 + 15
20 + 20
20 + 40
80 + 150
80 + 300
80 + 500
50 + 1000
15 + 300
04 + 80
20 + 100
20 + 500
80 + 600
80 + 800
80 + 1000

0010 + 2
0010 + 2
0010 + 4
0030 + 10
0120 + 16
0300 ppm
0600 ppm
01200 ppm
0010 + 20
0010 + 20
0010 + 30
0030 + 50
0080 + 80
0100 + 700
0200 + 1100
0600 + 3000
0010 + 200
0010 + 200
0010 + 300
0030 + .600
0080 + 3,000
0250 + 25,000
0500 + 50,000

1000 + 110,000

00.05 + 80

0.035 + 80

0.035 + 80

0.035 + 80

0.035 + 80

000.3 + 110

000.3 + 110
000 1 + 110

00.05 + 700

0.035 + 700

0.035 + 700

0.035 + 700

0.035 + 700

000.3 + 800

000.3 + 800
000 2 + 800

00.05 + 10,000

00.05 + 10,000

00.05 + 10,000

00.05 + 10,000

000.1 + 13,000

001.5 + 50,000

001.5 + 50,000

003.5 + 100,000

±(ppm output + mV) ±(ppm output)/°C ±(% output)

150 + 0.5

020 + 0.5

50

2

50

5

0010 + 2
0010 + 1

0.15

0.07

1-20

Table 1-9. AC Voltage Secondary Performance and Operating Characteristics (continued)

5725A Amplifier:

Range Frequency

Hz ±(ppm output + mV) ±(ppm output)/°C

040 - 1 k

1100 V

01 k - 20 k

20 k - 50 k
50 k - 100 k

Stability

Temperature Coefficient

±1 °C [Note 1]

24 Hours 10°-40 °C

010 + .5
015 + 2
040 + 2

130 + 2

5
5
10
30

Adder

0°-10 °C

and

40°-50 °C

5
5
10
30

Introduction and Specifications

Load Regulation

[Note 2]

(ppm output + mV)

010 + 1
090 + 6

275 + 11
500 + 30

AC Voltage Specifications

Distortion

Bandwidth

10 Hz-10 MHz

±(% output)

150 pF 1000 pF

0.10

0.10

0.30

0.40

0.10

0.15

0.30

0.40

1

Voltage Range Maximum Current Limits Load Limits

2.2 V [Note 3]
22 V
220 V

1100 V 6 mA 600 pF

50 mA, 0 °C-40 °C
20 mA, 40 °C-50 °C

>50 Ω,
1000 pF

5725A Amplifier: 1000 pF [Note 2]

040 Hz-5 kHz 50 mA

1100 V 05 kHz-30 kHz 70 mA 300 pF

30 kHz-100 kHz 70 mA

[Note 4]

150 pF

Notes:

1 Stability specifications are included in Absolut e Uncert aint y v alues

for the primary specifications.

2. The 5725A will drive up to 1000 pF of load capacitance.
Uncertainty specifications include loads t o 300 pF and 150 pF as
shown under "Load Limits." For capacitances up to the maximum of
1000 pF, add "Load Regulation."

3. 2.2 V Range, 100 kHz-1.2 MHz only: uncertainty specif ic at ions
cover loads to 10 mA or 1000 pF. For higher loads, load regulation
is added.

4. Applies from 0 °C to 40 °C

10000

5700A/5720A
5725A

2.2 x 107 V-Hz

5700A-03

ahp160f.eps

1000

100

Voltage

10

3.5 V

0

40 Hz 30 Hz

15 Hz

Volt-Hertz Capability

50 Hz10 Hz 1 kHz 100 kHz 1 MHz 30 MHz

Frequency

Figure 1-2. Volt-Hertz Capability

Output display formats: Voltage or dBm,
dBm reference 600 Ω.

Minimum output:: 10 % on eac h range
External sense: Selectable for 2.2 V, 22 V, 220 V, and

1100 V ranges; 5700A/5720A <100 kHz, 5725A <30 kHz

Settling time to full accuracy:

Frequency (Hz) Settling time (seconds)

<20 7

120-120 k 5

>120 k 2

+ 1 second for amplitude or frequency range change;
+ 2 seconds for 5700A/5720A 1100 V range;
+ 4 seconds for 5725A 1100 V range

Overshoot:: <10%
Common mode rejection: 140 dB, DC to 400 Hz

Frequency:

Ranges (Hz):

10.000-119.99

0.1200 k-1.1999 k, 1.200 k-11.999 k

12.00 k-119.99 k,120.0 k-1.1999
Uncertainty: ±0.01 %
Resolution: 11.999 counts
Phase lock: Selectable rear panel BNC input
Phase uncertainty (except 1100 V range):

>30 Hz: ±1° + 0.05°/kHz), <30 Hz: ±3°
Input voltage: 1 V to 10 V rms sine wave (do not exceed
1 V for mV ranges)
Frequency range: 10 Hz to 1.1999 MHz
Lock range: ±2 % of frequency
Lock-in time: Larger of 10/frequency or 10 msec
Phase reference: Selectable, rear panel BNC output
Range: ±180°
Phase Uncertainty (except 1100 V range):

±1° at quadrature points (0°, ±90°, ±180°) elsewhere

±2°

Stability: ±0.1°
Resolution: 1°
Output level: 2.5 V rms ±0.2 V
Frequency range:

50 kHz to 1 kHz, usable 10 Hz to 1.1999 MHz

1-21

5700A/5720A Series II

Operators Manual

1-29. Resistance Specifications

Table 1-10. 5720A Series II Resistance Specifications: 99 % and 95 % Confidence Levels

5720A

99%

99% Confidence Level

Nominal

Value

Ω

0
1

1.9
10
19
100
190
1 k

1.9 k
10 k
19 k
100 k
190 k
1 M

1.9 M
10 M
19 M
100 M

Absolute Uncertainty of Characterized Value

±5 °C from calibration temperature [Note 1]

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

±ppm ±ppm

50 µΩ
85
85
23
23
10
10
8
8
8
9
9
9
16
17
33
43
100

50 µΩ
95
95
25
25
11
11
9
9
9
9
11
11
18
19
37
47
110

50 µΩ
100
100
26
26

11.5

11.5

9.5

9.5

9.5

9.5
12
12
20
21
40
50
115

50 µΩ
110
110
27
27
12
12
10
10
10
10
13
13
23
24
46
55
120

Relative Uncertainty

±1 °C

50 µΩ
32
25
5
4
2
2
2
2
2
2
2
2

2.5
3
10
20
50

50 µΩ
40
33
8
7
4
4
3
3
3
3
3
3
5
6
14
24
60

5720A

95%

95 % Confidence Level

Nominal

Value

Ω

0
1

1.9
10
19
100
190
1 k

1.9 k
10 k
19 k
100 k
190 k
1 M

1.9 M
10 M
19 M
100 M

Note: 1. Specificati ons apply to displayed value. 4-wi re connections, except 100 MΩ.

Absolute Uncertainty of Characterized Value

±5 °C from calibration temperature [Note 1]

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

±ppm ±ppm

40 µΩ
70
70
20
20
8
8

6.5

6.5

6.5

7.5

7.5

7.5
13
14
27
35
85

40 µΩ
80
80
21
21
9
9

7.5

7.5

7.5

7.5
9
9
15
16
31
39
95

40 µΩ
85
85
22
22

9.5

9.5
8
8
8
8
10
10
17
18
34
42
100

40 µΩ
95
95
23
23
10
10

8.5

8.5

8.5

8.5
11
11
20
21
40
57
100

Relative Uncertainty

±1 °C

40 µΩ
27
20
4

3.5

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6
2

2.5
8
16
40

40 µΩ
35
26
7
6

3.5

3.5

2.5

2.5

2.5

2.5

2.5

2.5
4
4
12
20
50

1-22

Introduction and Specifications

Resistance Specifications

Table 1-11. 5700A Series II Resistance Specifications: 99 % and 95 % Confidence Levels

5700A

99%

99 % Confidence Level

Nominal

Value

Ω

0
1

1.9
10
19
100
190
1 k

1.9 k
10 k
19 k
100 k
190 k
1 M

1.9 M
10 M
19 M
100 M

Absolute Uncertainty of Characterized Value

±5 °C from calibration temperature [Note 1]

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

±ppm ±ppm

50 µΩ
85
85
26
24
15
15
11
11
9
9
11
11
16
17
33
43
110

50 µΩ
95
95
28
26
17
17
12
12
11
11
13
13
18
19
37
47
120

50 µΩ
100
100
30
28
18
18
13
13
12
12
14
14
20
21
40
50
125

50 µΩ
110
110
33
31
20
20
15
15
14
14
16
16
23
24
46
55
130

Relative Uncertainty

50 µΩ
32
25
5
4
2
2
2
2
2
2
2
2

2.5

3.5
10
20
50

1

±1 °C

50 µΩ
40
33
8
7
4
4

3.5

3.5

3.5

3.5

3.5

3.5
5
6
14
24
60

5700A

95%

95 % Confidence Level

Nominal

Value

Ω

0
1

1.9
10
19
100
190
1 k

1.9 k
10 k
19 k
100 k
190 k
1 M

1.9 M
10 M
19 M
100 M

Note: 1. Specificati ons apply to displayed value. 4-wi re connections, except 100 MΩ.

Absolute Uncertainty of Characterized Value

±5 °C from calibration temperature [Note 1]

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

±ppm ±ppm

50 µΩ
70
70
21
20
13
13
9
9

7.5

7.5
9
9
13
14
27
35
90

50 µΩ
80
80
23
22
14
14
10
10

9.5

9.5
11
11
15
16
31
39
100

50 µΩ
85
85
27
24
15
15
11
11

10.5

10.5
12
12
17
18
34
42
105

50 µΩ
95
95
28
27
17
17
13
13
12
12
14
14
20
21
40
47
110

Relative Uncertainty

±1 °C

50 µΩ
32
25
5
4
2
2
2
2
2
2
2
2

2.5
3
10
20
50

50 µΩ
40
33
8
7
4
4

3.5

3.5

3.5

3.5

3.5

3.5
5
6
14
24
60

1-23

5700A/5720A Series II

µ

µ

µ

µ

µ

µ

µ

µ

µ

µ

µ

µ

µ

Operators Manual

Table 1-12. Resistance Secondary Performance Specifications and Operating Characteristics

Nominal

Value

Ω±ppm ±ppm/°C mA mA ±ppm ±mΩ

0 008 - 500 500 

13245008 - 100 700 500

1.9 25 6 7

10 5 2 3

19 4 2 3

100 2 2 3

190 2 2 3

1 k 2 2 3

1.9 k 2 2 3

Stability

±1 °C

[Note 1]

24 Hours 40°-50 °C 0.1Ω 1Ω

Temperature

Coefficient Adder

[Note 2]

10°-40 °C 0° -10 ° C

and

Full Spec

Load Range

[Note 3] to Nominal

Maximum

Peak

Current

Maximum

Difference

Characterized

Value

Two-Wire Adder

of

active

compensation

[Note 4]

Lead Resistance

µ

4 V
Im

4 +

2 +

4 V

00

8 - 100 500 500

00

8 - 11

00

8 - 11 160 300

00

8 - 11 70 150

00

8 - 11 50 150

00

1 - 2 22 150

00

1 - 1.5 16 150

220 300

2 +

2 +

2 +

2 +

2 +

2 +

10 15

10 15

Im
4 V
Im
4 V
Im

4 V
Im
4 V
Im
4 V
Im

4 +

4 +

4 +

4 +

4 +

4 +

4 V
Im

4 V
Im
4 V
Im
4 V
Im

4 V
Im
4 V
Im
4 V
Im

10 k 2 2 3 100 - 500 µA 7 150

19 k 2 2 3
100 k 2 2 3 10 - 100 µA 1 150 Im= Current

190 k 2 2 3 00 5 - 50 µA 500 µA 150
1 M 2.5 2.5 6 00 5 - 20 µA 100 µA 200

1.9 M 3.5 3 10 02.5 - 10 µA 50 µA 200
10 M 10 5 20 00.5 - 2 µA 10 µA 300
19 M 20 8 40 0.25 - 1 µA5 µA 300
100 M 50 12 100 0 50 - 200 nA 1 µA 500

0

50 - 250 µA 5 150

50 60

100 120

produced by
Ohmmeter

Notes:

1. Stability specifications are included in the Absolute Uncertainty values in the primary specification tables.

2. Temperature coefficient is an adder to uncertainty specifications that does not apply unless operated

more than 5 °C from calibration temperature, or calibrated outside the range 19 °C to 24 °C. Two
examples:

• Calibrate at 20 °C: Temperature coefficient adder is not required unless operated below 15 °C or
above 25 °C.

• Calibrate at 26 °C: Add 2 °C temperature coefficient adder. Additional temperature coefficient adder is
not required unless operated below 21 °C or above 31 °C.

3. Refer to current derating factors table for loads outside of this range.

4. Active two-wire compensation may be selected for values less than 100 kΩ, with either the front panel or
the meter input terminals as reference plane. Active compensation is limited to 11 mA load, and to 2 V
burden. Two-wire compensation can be used only with Ω-meters that source continuous (not pulsed) dc
current.

1-24

Introduction and Specifications

Table 1-13. Current Derating Factors

Nominal Value Value of Derating Factor K for Over or Under Current

Notes:

Ω

SHORT
1

1.9
10
19
100
190
1 k

1.9 k
10 k
19 k
100 k
190 k
1 M

1.9 M
10 M
19 M
100 M

Two-Wire Comp

I < I

L

[Note 1]

4.4

4.4

4.4

4.4

4.4

4.4

4.4

4.4

4.4
5000
5000








Four-Wire

I < I

L

[Note 1]

0.3
300
160
30
16

3.5

2.5

0.4

0.4
50
50

7.5

4.0

1.0

0.53

0.2

0.53

0.1

Resistance Specifications

Four-Wire

I

< I < I

U

max

[Note 2]



-5

4 x10

-4

1.5 x 10

-3

1.6 x 10

-3

3 x 10

-2

1 x 10

-2

1.9 x 10

0.1

0.19

2.0

3.8

-5

2 x 10

-5

3.8 x 10

-4

1.5 x 10

-4

2.9 x 10

-3

1 x 10

-3

1.9 x 10



1

I < I

1. For
equat
spec

Error = K(
Where: Error

four-w

, errors occur due to thermally generated voltages within the 5720A. Use the following

L

ion to determine the error, and add this error to the corresponding uncertainty or stability

ification.

I

- I)/( I

L

L

x I)

is in mΩ for all two-wire comp values and four-wire short, and in ppm for the remaining

ire values.

K is the constant from the above table;

2. For
equat
spec

Error

I and I
I and I

I

U

ion to determine the error in ppm and add this error to the corresponding uncertainty or stability

ification.

in ppm = K(I

are expressed in mA for short to 1.9 kΩ;

L

are expressed in µA for 10 kΩ to 100 MΩ

L

< I < I

errors occur due to self-heating of the resistors in the calibrator. Use the following

MAX

2

2

-I

)

U

Where: K is the constant from the above table;

I and I
I and I

are expressed in mA for short to 19 kΩ;

U

are expressed in µA for 100 kΩ to 100 MΩ

U

1-25

5700A/5720A Series II

Operators Manual

1-30. DC Current Specifications

Table 1-14. 5720A Series II DC Current Specifications: 99 % and 95 % Confidence Levels

5720A

99%

99 % Confidence Level

Range Resolution

220 µA

2.2 mA

22 mA

220 mA

2.2 A

[Note 1]

11 A 10 330 + 470 340 + 480 350 + 480 360 + 480 100 + 130 110 + 130

Absolute Uncertainty

±5 °C from calibration temperature.

For fields strengths >0.4 V/m but ≤3 V/m,

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

nA ± (ppm output + nA) ± (ppm output + nA)

0.1
1
10

µA ± (ppm output + µA) ± (ppm output + µA)

0.1
1

040 + 7
030 + 8
030 + 50

040 + 0.8
060 + 15

5725A Amplifier:

add 1 % of range.

042 + 7
035 + 8
035 + 50

045 + 0.8
070 + 15

045 + 7
037 + 8
037 + 50

047 + 0.8
080 + 15

050 + 7
040 + 8
040 + 50

050 + 0.8
090 + 15

Relative Uncertainty ±1 °C

024 + 7
024 + 8
024 + 50

026 + 0.5
040 + 12

026 + 7
026 + 8
026 + 50

030 + 0.5
045 + 12

5720A

95%

95 % Confidence Level

Range Resolution

For fields strengths >0.4 V/m but ≤3 V/m,

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

nA ± (ppm output + nA) ± (ppm output + nA)

220 µA

2.2 mA

22 mA

220 mA

2.2 A

[Note 1]

11 A 10 330 + 470 340 + 480 350 + 480 360 + 480 100 + 130 110 + 130
Note: Maximum output from calibrator terminals is 2.2 A. Uncertainty specifications for 220 mA and 2.2 mA

0.1
1
10

µA ± (ppm output + µA) ± (ppm output + µA)

0.1
1

032 + 6
025 + 7
025 + 40

035 + 0.7
050 + 12

5725A Amplifier:

ranges are increased by a factor of 1.3 when supplied through 5725A terminals.
Specifications are otherwise identical for all output locations.

1. Add to uncertainty specifications:
±200 x

2

I

ppm for >100 mA on 220 mA range

±10 x I2 ppm for >1 A on 2.2 A range

Absolute Uncertainty

±5 °C from calibration temperature

add 1 % of range.

035 + 6
030 + 7
030 + 40

040 + 0.7
060 + 12

037 + 6
033 + 7
033 + 40

042 + 0.7
070 + 12

040 + 6
035 + 7
035 + 40

045 + 0.7
080 + 12

Relative Uncertainty ±1 °C

020 + 6
020 + 7
020 + 40

020 + 0.7
032 + 12

022 + 6
022 + 7
022 + 40

025 + 0.7
040 + 12

1-26

Introduction and Specifications

DC Current Specifications

Table 1-15. 5700A Series II DC Current Specifications: 99 % and 95 % Confidence Levels

5700A

99%

99 % Confidence Level

Absolute Uncertainty

Range Resolution

nA ± (ppm output + nA) ± (ppm output + nA)

220 µA

2.2 mA

22 mA

220 mA

2.2 A

[Note 1]

5725A Amplifier:

11 A 10 330 + 470 340 + 480 350 + 480 360 + 480 100 + 130 110 + 130

0.1
1
10

µA ± (ppm output + µA) ± (ppm output + µA)

0.1
1

045 + 10
045 + 10
045 + 100

055 + 1
075 + 30

±5 °C from calibration temperature

For fields strengths >0.4 V/m but ≤3 V/m,

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

add 1% of range.

050 + 10
050 + 10
050 + 100

060 + 1
080 + 30

055 + 10
055 + 10
055 + 100

065 + 1
090 + 30

060 + 10
060 + 10
060 + 100

070 + 1
095 + 30

Relative Uncertainty ±1 °C

024 + 2
024 + 5
024 + 50

026 + .3
040 + 7

026 + 2
026 + 5
026 + 50

030 + .3
045 + 7

1

5700A

95%

95 % Confidence Level

Absolute Uncertainty

±5 °C from calibration temperature

Range Resolution

nA ± (ppm output + nA) ± (ppm output + nA)

220 µA

2.2 mA

22 mA

220 mA

2.2 A

[Note 1]

5725A Amplifier:

11 A 10 330 + 470 340 + 480 350 + 480 360 + 480 100 + 130 110 + 130
Note: Maximum output from the calibrator’s terminals is 2.2 A. Uncertainty specifications for 220 mA and

0.1
1
10

µA ± (ppm output + µA) ± (ppm output + µA)

0.1
1

For fields strengths >0.4 V/m but ≤3 V/m,

add 1 % of range.

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

035 + 8
035 + 8
035 + 80

045 + 0.8
060 + 25

040 + 8
040 + 8
040 + 80

050 + 0.8
065 + 25

045 + 8
045 + 8
045 + 80

055 + 0.8
075 + 25

050 + 8
050 + 8
050 + 80

060 + 0.8
080 + 25

2.2 mA ranges are increased by a factor of 1.3 when supplied through 5725A terminals.

Specifications are otherwise identical for all output locations.

1. Add to uncertainty specifications:
±200 x

2

I

ppm for >100 mA on 220 mA range

±10 x I2 ppm for >1A on 2.2A range

Relative Uncertainty ±1 °C

020 + 1.6
020 + 4
020 + 80

022 + 0.25
035 + 6

022 + 1.6
022 + 4
022 + 80

025 + 0.25
040 + 6

1-27

5700A/5720A Series II

0

0

0

0

0

0

0

0

0

0

Operators Manual

Table 1-16. DC Current Secondary Performance Specifications and Operating Characteristics

Range Stability

220 µA

2.2 mA

22 mA
220 mA

2.2 A

5725A ± (ppm output

11 A

Notes:

Maximum output from the calibrator’s terminals is 2.2 A. Uncertainty specifications for 220 mA and 2.2 mA
ranges are increased by a factor of 1.3 when supplied through 5725A terminals.

05 + 1
05 + 5
05 + 50
08 + 300
09 + 7 µA

25 + 100 20 + 75 30 + 120

Temperature

Coefficient [Note 2]

±1 °C [Note 1]

24 Hours 40 °-50 °C [Note 4] pk-pk RMS

± (ppm output

+ nA)

+ µA)

10 °-40 °C 0 °-10 °C

and

± (ppm output + nA)/ °C ±nA/V Ω ppm output

1 + 0.40
1 + 2
1 + 20
1 + 200
1 + 2.5 µΑ

± (ppm output + µA)/

3 + 1
3 + 10
3 + 100
3 + 1 µA
3 + 10 µA

°C

Compliance

Limits

10
10
10
10

3 [Note 5]

4

Burden

Voltage

Adder

[Note 3]

0.2

0.2
10
100
2 µA

Maximum

Load for

Full

Accuracy

20k
2k
200
20
2

4 15 + 70 175

Bandwidth

0.1-10 Hz

06 + .9
06 + 5
06 + 50
09 + 300

12 + 1.5 µA

ppm output

Noise

Bandwidth

0 Hz-10 kHz

+ nA

+ µA

nA

10
10
50
500
20 µA

µA

1. Stability specifications are included in the Absolute Uncertainty values for the primary specifications.

2. Temperature coefficient is an adder to uncertainty specifications. It does not apply unless operating more
than ±5 °C from calibration temperature.

3. Burden voltage adder is an adder to uncertainty specifications that does not apply unless burden voltage is
greater than 0.5 V.

4. For higher loads, multiply uncertainty specification by:

1

+

0.1 x actual load

maximum load for full accuracy

5. The calibrator’s compliance limit is 2 V for outputs from 1 A to 2.2 A. 5725A Amplifier may be used in range­lock mode down to 0 A.

Minimum output: 0 for all ranges, including 5725A.
Settling time to full accuracy: 1 second for mA and mA ranges; 3 seconds for 2.2 A range; 6 seconds for 11 A

range; + 1 second for range or polarity change
Overshoot: <5 %

1-28

1-31. AC Current Specifications

Table 1-17. 5720A Series II AC Current Specifications: 99 % Confidence Level

5720A

99%

99 % Confidence Level

Range Resolution Frequency

Hz ± (ppm output + nA) ± (ppm output + nA)

010 - 20

220 µA1 nA

2.2 mA 10 nA

22 mA 100 nA

020 - 40
040 - 1 k
01k - 5 k
05k - 10 k

010 - 20
020 - 40
040 - 1 k
01k - 5 k
05k - 10 k

010 - 20
020 - 40
040 - 1 k
01k - 5 k
05k - 10 k

Hz ± (ppm output + µA) ± (ppm output + µA)

010 - 20

220 mA 1 µA

2.2 A 10 µA

11 A 100 µA

020 - 40
040 - 1 k
01k - 5 k
05k - 10 k

020 - 1 k
01 k - 5 k
05 k - 10 k

040 - 1 k

01 k - 5 k
05 k - 10 k

0260 + 20
0170 + 12
0120 + 10
0300 + 15

1000 + 80

0260 + 50
0170 + 40
0120 + 40
0210 + 130

1000 + 800

0260 + 500
0170 + 400
0120 + 400
0210 + 700

1000 + 6000

0260 + 5
0170 + 4
0120 + 3
0210 + 4

1000 + 12

0290 + 40
0440 + 100

6000 + 200

5725A Amplifier:

0370 + 170
0800 + 380

3000 + 750

±5 °C from calibration temperature

For fields strengths >0.4 V/m but ≤3 V/m,

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

Absolute Uncertainty

add 1 % of range.

0280 + 20
0180 + 12
0130 + 10
0320 + 15

1100 + 80

0280 + 50
0180 + 40
0130 + 40
0220 + 130

1100 + 800

0280 + 500
0180 + 400
0130 + 400
0220 + 700

1100 + 6000

0280 + 5
0180 + 4
0130 + 3
0220 + 4

1100 + 12

0300 + 40
0460 + 100

7000 + 200

0400 + 170
0850 + 380

3300 + 750

0290 + 20
0190 + 12
0135 + 10
0340 + 15

1200 + 80

0290 + 50
0190 + 40
0135 + 40
0230 + 130

1200 + 800

0290 + 500
0190 + 400
0135 + 400
0230 + 700

1200 + 6000

0290 + 5
0190 + 4
0135 + 3
0230 + 4

1200 + 12

0310 + 40
0480 + 100

7500 + 200

0440 + 170
0900 + 380

3500 + 750

0300 + 20
0200 + 12
0140 + 10
0350 + 15

1300 + 80

0300 + 50
0200 + 40
0140 + 40
0240 + 130

1300 + 800

0300 + 500
0200 + 400
0140 + 400
0240 + 700

1300 + 6000

0300 + 5
0200 + 4
0140 + 3
0240 + 4

1300 + 12

0320 + 40
0500 + 100

8000 + 200

0460 + 170
0950 + 380

3600 + 750

Introduction and Specifications

AC Current Specifications

Relative Uncertainty

±1 °C

0260 + 20
0130 + 12
0100 + 10
0250 + 15
0900 + 80

0260 + 50
0130 + 40
0100 + 40
0250 + 130
0900 + 800

0260 + 500
0130 + 400
0100 + 400
0250 + 700
0900 + 6000

0260 + 5
0130 + 4
0100 + 3
0250 + 4
0900 + 12

0300 + 40
0500 + 100

6000 + 200

0300 + 170
0700 + 380

2800 + 750

0280 + 20
0150 + 12
0110 + 10
0280 + 15
01000 + 80

0280 + 50
0150 + 40
0110 + 40
0280 + 130

1000 + 800

0280 + 500
0150 + 400
0110 + 400
0280 + 700

1000 + 6000

0280 + 5
0150 + 4
0110 + 3
0280 + 4

1000 + 12

0350 + 40
0520 + 100

7000 + 200

0330 + 170
0800 + 380

3200 + 750

1

Note: Maximum output from the calibrator’s terminals is 2.2 A. Uncertainty specifications for 220 µA and 2.2 mA
ranges are increased by a factor of 1.3 plus 2 µA when supplied through 5725A terminals. Specifications are
otherwise identical for all output locations.

1-29

5700A/5720A Series II

Operators Manual

5720A

95%

95 % Confidence Level

Range Resolution Frequency

220 µA1 nA

2.2 mA 10 nA

22 mA 100 nA

220 mA 1 µA

2.2 A 10 µA

11 A 100 µA

Note: Maximum output from the calibrator’s terminals is 2.2 A. Uncertainty specifications for 220 µA and

2.2 mA ranges are increased by 1.3 x plus 2 µA when supplied through 5725A terminals. Specifications are

otherwise identical for all output locations.

Table 1-18. 5720A Series II AC Current Specifications: 95 % Confidence Level

Absolute Uncertainty

±5 °C from calibration temperature

For fields strengths >0.4 V/m but ≤3 V/m,

add 1 % of range.

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

Hz ± (ppm output + nA) ± (ppm output + nA)

010 - 20
020 - 40
040 - 1 k
01k - 5 k
05k - 10 k

010 - 20
020 - 40
040 - 1 k
01k - 5 k
05k - 10 k

010 - 20
020 - 40
040 - 1 k
01k - 5 k
05k - 10 k

0210 + 16
0130 + 10
0100 + 8
0240 + 12
0800 + 65

0210 + 40
0140 + 35
0100 + 35
0170 + 110
0800 + 650

0210 + 400
0130 + 350
0100 + 350
0170 + 550
0800 + 5000

0230 + 16
0140 + 10
0110 + 8
0250 + 12
0900 + 65

0230 + 40
0140 + 35
0110 + 35
0180 + 110
0900 + 650

0230 + 400
0140 + 350
0110 + 350
0180 + 550
0900 + 5000

0240 + 16
0150 + 10
0115 + 8
0270 + 12

1000 + 65

0240 + 40
0150 + 35
0115 + 35
0190 + 110

1000 + 650

0240 + 400
0150 + 350
0115 + 350
0190 + 550

1000 + 5000

0250 + 16
0160 + 10
0120 + 8
0280 + 12

1100 + 65

0250 + 40
0160 + 35
0120 + 35
0200 + 110

1100 + 650

0250 + 400
0160 + 350
0120 + 350
0200 + 550

1100 + 5000

Hz ± (ppm output + µA) ± (ppm output + µA)

010 - 20
020 - 40
040 - 1 k
01k - 5 k
05k - 10 k

020 - 1 k
01 k - 5 k
05 k - 10 k

0210 + 4
0130 + 3.5
0100 + 2.5
0170 + 3.5
0800 + 10

0230 + 35
0350 + 80

5000 + 160

0230 + 4
0140 + 3.5
0110 + 2.5
0180 + 3.5
0900 + 10

0240 + 35
0390 + 80

6000 + 160

0240 + 4
0150 + 3.5
0115 + 2.5
0190 + 3.5

1000 + 10

0250 + 35
0420 + 80

6500 + 160

0250 + 4
0160 + 3.5
0120 + 2.5
0200 + 3.5

1100 + 10

0260 + 35
0450 + 80

7000 + 160

5725A Amplifier:

040 - 1 k

01 k - 5 k
05 k - 10 k

0370 + 170
0800 + 380

3000 + 750

0400 + 170
0850 + 380

3300 + 750

0440 + 170
0900 + 380

3500 + 750

0460 + 170
0950 + 380

3600 + 750

Relative Uncertainty

0210 + 16
0110 + 10
0080 + 8
0200 + 12
0700 + 65

0210 + 40
0110 + 35
0080 + 35
0200 + 110
0700 + 650

0210 + 400
0110 + 350
0080 + 350
0200 + 550
0700 + 5000

0210 + 4
0110 + 3.5
0080 + 2.5
0200 + 3.5
0700 + 10

0250 + 35
0400 + 80

5000 + 160

0300 + 170
0700 + 380

2800 + 750

±1 °C

0230 + 16
0130 + 10
0090 + 8
0230 + 12
0800 + 65

0230 + 40
0130 + 35
0090 + 35
0230 + 110
0800 + 650

0230 + 400
0130 + 350
0090 + 350
0230 + 550
0800 + 5000

0230 + 4
0130 + 3.5
090 + 2.5
0230 + 3.5
0800 + 10

0300 + 35
0440 + 80

6000 + 160

0330 + 170
0800 + 380

3200 + 750

1-30

5700A

0

0

0

0

0

0

0

0

0

0

99%

Table 1-19. 5700A Series II AC Current Specifications: 99 % Confidence Level

99 % Confidence Level

Introduction and Specifications

AC Current Specifications

1

Absolute Uncertainty

Range Resolution Frequency

±5 °C from calibration temperature

Relative Uncertainty

±1 °C

For fields strengths >0.4 V/m but ≤3 V/m,

add 1 % of range.

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

Hz ± (ppm output + nA) ± (ppm output + nA)

220 µA1 nA

2.2 mA 10 nA

22 mA 100 nA

010 - 20
020 - 40
040 - 1 k
01k - 5 k

5k - 10 k

010 - 20
020 - 40
040 - 1 k
01k - 5 k

5k - 10 k

010 - 20
020 - 40
040 - 1 k
01k - 5 k

5k - 10 k

0650 + 30
0350 + 25
0120 + 20
0500 + 50

1500 + 100

0650 + 50
0350 + 40
0120 + 40
0500 + 500

1500 + 1000

0650 + 500
0350 + 400
0120 + 400
0500 + 5000

1500 + 10,000

0700 + 30
0380 + 25
0140 + 20
0600 + 50

1600 + 100

0700 + 50
0380 + 40
0140 + 40
0600 + 500

1600 + 1000

0700 + 500
0380 + 400
0140 + 400
0600 + 5000

1600 + 10,000

0750 + 30
0410 + 25
0150 + 20
0650 + 50

1700 + 100

0750 + 50
0410 + 40
0150 + 40
0650 + 500

1700 + 1000

0750 + 500
0410 + 400
0150 + 400
0650 + 5000

1700 + 10,000

00 800 + 30
00 420 + 25
00 160 + 20
00 700 + 50
0 1800 + 100

00 800 + 50
0 0420 + 40
00 160 + 40
00 700 + 500
0 1800 + 1000

00 800 + 500
00 420 + 400
00 160 + 400
00 700 + 5000
0 1800 + 10,000

0450 + 30
0270 + 25
0110 + 20
0450 + 50

1400 + 100

0450 + 50
0270 + 40
0110 + 40
0450 + 500

1400 + 1000

0450 + 500
0270 + 400
0110 + 400
0450 + 5000

1400 + 10,000

0500 + 30
0300 + 25
0120 + 20
0500 + 50

1500 + 100

0500 + 50
0300 + 40
0120 + 40
0500 + 500

1500 + 1000

0500 + 500
0300 + 400
0120 + 400
0500 + 5000

1500 +
10,000

Hz ± (ppm output + µA) ± (ppm output + µA)

220 mA 1 µA

2.2 A 10 µA

010 - 20
020 - 40
040 - 1 k
01k - 5 k

5k - 10 k
20 - 1 k
1 k - 5 k
5 k - 10 k

0650 + 5
0350 + 4
0120 + 4
0500 + 50

1500 + 100

0600 + 40
0700 + 100

8000 + 200

0700 + 5
0380 + 4
0150 + 4
0600 + 50

1600 + 100

0650 + 40
0750 + 100

9000 + 200

0750 + 5
0410 + 4
0170 + 4
0650 + 50

1700 + 100

0700 + 40
0800 + 100

9500 + 200

00 800 + 5
00 420 + 4
00 180 + 4
0 700 + 50
0 1800 + 100

0 750 + 40
00 850 + 100

10,000 + 200

0450 + 5
0280 + 4
0110 + 4
0450 + 50

1400 + 100

0600 + 40
0650 + 100

7500 + 200

0500 + 5
0300 + 4
0130 + 4
0500 + 50

1500 + 100

0650 + 40
0750 + 100

8500 + 200

5725A Amplifier:

11 A 100 µA

40 - 1 k
1 k - 5 k
5 k - 10 k

0370 + 170
0800 + 380

3000 + 750

400 + 170
850 + 380
3300 + 750

0440 + 170
0900 + 380

3500 + 750

00 460 + 170
00 950 + 380
0 3600 + 750

0300 + 170
0700 + 380

2800 + 750

0330 + 170
0800 + 380

3200 + 750

Note: Maximum output from the calibrator’s terminals is 2.2 A. Uncertainty specifications for 220 µA and 2.2 mA
ranges are increased by 1.3 x plus 2 µA when supplied through 5725A terminals. Specifications are otherwise
identical for all output locations.

1-31

5700A/5720A Series II

0

0

0

0

0

0

0

0

0

0

Operators Manual

5700A

95%

95 % Confidence Level

Table 1-20. 5700A Series II AC Current Specifications: 95 % Confidence Level

Absolute Uncertainty

Range Resolution Frequency

±5 °C from calibration temperature

For fields strengths >0.4 V/m but ≤3 V/m,

Relative Uncertainty

±1 °C

add 1 % of range.

24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days

Hz ± (ppm output + nA) ± (ppm output + nA)

220 µA1 nA

2.2 mA 10 nA

22 mA 100 nA

010 - 20
020 - 40
040 - 1 k
01k - 5 k

5k - 10 k

010 - 20
020 - 40
040 - 1 k
01k - 5 k

5k - 10 k

010 - 20
020 - 40
040 - 1 k
01k - 5 k

5k - 10 k

0550 + 25
0280 + 20
0100 + 16
0400 + 40

1300 + 80

0550 + 40
0280 + 35
0100 + 35
0400 + 400

1300 + 800

0550 + 400
0280 + 350
0100 + 350
0400 + 4000

1300 + 8000

0600 + 25
0310 + 20
0120 + 16
0500 + 40

1400 + 80

0600 + 40
0310 + 35
0120 + 35
0500 + 400

1400 + 800

0600 + 400
0310 + 350
0120 + 350
0500 + 4000

1400 + 8000

0650 + 25
0330 + 20
0130 + 16
0550 + 40

1500 + 80

0650 + 40
0330 + 35
0130 + 35
0550 + 400

1500 + 800

0650 + 400
0330 + 350
0130 + 350
0550 + 4000

1500 + 8000

0700 + 25
0350 + 20
0140 + 16
0600 + 40

1600 + 80

0700 + 40
0350 + 35
0140 + 35
0600 + 400

1600 + 800

0700 + 400
0350 + 350
0140 + 350
0600 + 4000

1600 + 8000

0375 + 25
0220 + 20
090 + 16
0375 + 40

1200 + 80

0375 + 40
0220 + 35
0090 + 35
0375 + 400

1200 + 800

0375 + 400
0220 + 350
0090 + 350
0375 + 4000

1200 + 8000

Hz ± (ppm output + µA) ± (ppm output + µA)

220 mA 1 µA

2.2 A 10 µA

010 - 20
020 - 40
040 - 1 k
01k - 5 k

5k - 10 k
20 - 1 k
1 k - 5 k
5 k - 10 k

0550 + 4
0280 + 3.5
0100 + 3.5
0400 + 40

1300 + 80

0500 + 35
0600 + 80

6500 + 160

0600 + 4
0310 + 3.5
0120 + 3.5
0500 + 40

1400 + 80

0550 + 35
0650 + 80

7500 + 160

0650 + 4
0330 + 3.5
0130 + 3.5
0550 + 40

1500 + 80

0600 + 35
0700 + 80

8000 + 1600

0700 + 4
0350 + 3.5
0140 + 3.5
0600 + 40

1600 + 80

0650 + 35
0750 + 80

8500 + 160

0375 + 4
0220 + 3.5
0090 + 3.5
0375 + 40

1200 + 80

0500 + 35
0550 + 80

6000 + 160

5725A Amplifier:

11 A 100 µA

40 - 1 k
1 k - 5 k
5 k - 10 k

0370 + 170
0800 + 380

3000 + 750

0400 + 170
0850 + 380

3300 + 750

0440 + 170
0900 + 380

3500 + 750

0460 + 170
0950 + 380

3600 + 750

0300 + 170
0700 + 380

2800 + 750

Note: Maximum output from the calibrator’s terminals is 2.2 A. Uncertainty specifications for 220 µA and

2.2 mA ranges are increased by a factor of 1.3 plus 2 µA when supplied through 5725A terminals.

Specifications are otherwise identical for all output locations.

0400 + 25
0250 + 20
0100 + 16
0400 + 40

1200 +80

0400 + 40
0250 + 35
0100 + 35
0400 + 400

1200 + 800

0400 + 400
0250 + 350
0100 + 350
0400 + 4000

1200 + 8000

0400 + 4
0250 + 3.5
0100 + 3.5
0400 + 40

1200 + 80

0550 + 35
0650 + 80

7000 + 160

0330 + 170
0800 + 380

3200 + 750

1-32

Introduction and Specifications

AC Current Specifications

Table 1-21. AC Current Secondary Performance Specifications and Operating Characteristics

Stability

±1 °C [Note 1]

Range Frequency 24 Hours 10°-40 °C 0°-10 °C and

Hz ± (ppm output + nA) ± (ppm output + nA)/°C V rms Ω± (% output + µA)

220 µA 010 - 20

020 - 40
040 - 1 k
01k - 5 k

05k - 10 k

2.2 mA 010 - 20

020 - 40
040 - 1 k
01k - 5 k

05k - 10 k

22 mA 010 - 20

020 - 40
040 - 1 k
01k - 5 k

05k - 10 k

Hz ± (ppmutput + µA) ± (ppm output + µA)/°C

220 mA 010 - 20

020 - 40
040 - 1 k
01k - 5 k

05k - 10 k

2.2 A 20 - 1 k
1 k - 5 k
5 k - 10 k

5725A Amplifier: ± (% output)

11 A 40 - 1 k

1 k - 5 k
5 k - 10 k

Notes:

Maximum output from 5720A t erm i nal s is 2.2 A. Uncertaint y specifications for 220 µA and 2.2 mA ranges are increased by a
factor of 1.3, plus 2 µA when supplied through 5725A terminals. Speci f i cations are otherwise identical for all output locations.

1. Stabilit y specifications are included in the Absolut e Unc ert aint y values for the primary specifications.

2. Temperature coefficient is an adder to uncertainty specifications that does not apply unl ess operating more than ±5 °C from

calibration temperature.

3. For larger res i stive loads multiply uncertainty specif i cations by:

4. 1.5 V compliance limi t above 1 A. 5725A Amplifier m ay be used in range-lock mode down to 1 A.

5. For resistive loads wit hi n rated compliance voltage lim i ts.

6. For outputs from the Aux Current terminals, the maximum resistive load for full accuracy is 1 kΩ. For larger resistive loads ,
multiply the uncertai nt y as described in Note 3.

Minimum output: 9 µA for 220 µA range, 10 % on all other ranges. 1 A minimum for 5725A.
Inductive load limits: 400 µH (5700A/5720A, or 5725A). 20 µH for 5700A/5720A output >1 A.
Power factors: 5700A/5720A, 0.9 to 1; 5725A, 0.1 to 1. Subject t o compliance voltage limits.
Frequency:

Range (Hz): 10.000-11.999, 12.00-119.99, 120.0-1199.9, 1.200 k-10.000 k
Uncertainty: ±0.01 %
Resolution: 11,999 counts

Settling time to full accuracy: 5 sec onds for 5700A/5720A ranges; 6 seconds for 5725A 11 A range; +1 second for ampl i tude

or frequency range change.
Overshoot: <10 %

150 + 5

080 + 5
030 + 3
050 + 20

400 + 100
150 + 5

080 + 5
030 + 3
050 + 20

400 + 100
150 + 50

080 + 50
030 + 30
050 + 500

400 + 1000

150 + 0.5

080 + 0.5
030 + 0.3
050 + 3

400 + 5

050 + 5
080 + 20

800 + 50

075 + 100

100 + 150
200 + 300

Temperature Coefficient

[Note 2]

40°-50 °C

050 + 5
020 + 5
004 + 0.5
010 + 1
020 + 100

050 + 5
020 + 4
004 + 1
010 + 100
050 + 400

050 + 10
020 + 10
004 + 10
010 + 500
050 + 1000

050 + 0.05
020 + 0.05
004 + 0.1
010 + 2
050 + 5

004 + 1
010 + 5
050 + 10

020 + 75
040 + 75

100 + 75

050 + 5
020 + 5
010 + 0.5
020 + 1
020 + 100

050 + 5
020 + 4
010 + 2
020 + 100
050 + 400

050 + 10
020 + 10
010 + 20
020 + 400
050 + 1000

050 + 0.05
020 + 0.05
010 + 0.1
020 + 2
050 + 5

010 + 1
020 + 5
050 + 10

030 + 75
050 + 75

100 + 75

(

maximum load for full accuracy

Compliance

Limits

72k

7 500 0.05 + 0.1

7 150 0.05 + 0.1

7 15 0.05 + 10

1.4
[Note 4]

3 3 0.05

actual load

Maximum

Resistive

Load

For Full

Accuracy

[Note 3]

[Note 6]

0.5 0.5 + 100

2

)

Noise and
Distortion

Bandwidth

10 Hz-50 kHz

<0.5V Burden

0.05 + 0.1

0.05 + 0.1

0.05 + 0.1

0.25 + 0.5

00.5 + 1

0.05 + 0.1

0.05 + 0.1

0.25 + 0.5

00.5 + 1

0.05 + 0.1

0.05 + 0.1

0.25 + 0.5

00.5 + 1

0.05 + 10

0.05 + 10

0.25 + 50

00.5 + 100

0.3 + 500

0 1 + 1 mA

0.12

0.5

[Note 5]

1

1-33

5700A/5720A Series II

Operators Manual

1-32. Wideband AC Voltage (Option 5700-03) Specifications

Specifications apply to the end of the cable and 50 Ω termination used for calibration

Volts dBm 24 Hours 90 Days 180 Days 1 Year

1.1 mV -46 10 nV 0.4 + 0.4 00. 5 + 0.4 00.6 + 0.4 0.8 + 2
3 mV -37 10 nV 0. 4 + 1 0.45 + 1 00.5 + 1 0.7 + 3
11 mV -26 100 nV 0.2 + 4 0.35 + 4 00.5 + 4 0.7 + 8
33 mV -17 100 nV 0.2 + 10 00.3 + 10 0. 45 + 10 0.6 + 16
110 mV -6.2 1 µV 0.2 + 40 00.3 + 40 0.45 + 40 0.6 + 40
330 mV +3.4 1 µV 0.2 + 100 0 2.5 + 100 0.35 + 100 0.5 + 100

1.1 V +14 10 µV 0.2 + 400 0.25 + 400 0.35 + 400 0.5 + 400

3.5 V +24 10 µV 0.15 + 500 00.2 + 500 00.3 + 500 0.4 + 500

Table 1-22. Wideband AC Voltage (Option 5700-03) Specifications

Range Resolution

Absolute Uncertainty

±5 °C from calibration temperature

30 Hz-500 kHz

± (% output + µV)

Frequency Frequency

Hz Hz ± (% output + floor indicated) ±ppm/°C Seconds dB

00 10 - 30 0.01 0.3 0.3 0.3 100 7 -40
00 30 - 120 0.01 0.1 0.1 0.1 100 7 -40
0 120 - 1.2 k 0.1 0.1 0.1 0.1 100 5 -40

01.2 k - 12 k 1 0. 1 0.1 0.1 100 5 -40
0 12 k - 120 k 10 0.1 0.1 0.1 100 5 -40

120 k - 1.2 M 100 00.2 + 3 µV 00.1 + 3 µV 0.1 + 3 µV 100 5 -40

1.2 M - 2 M 100 k 00.2 + 3 µV 00.1 + 3 µV 0.1 + 3 µV 100 0.5 -40

0 2 M - 10 M 100 k 00.4 + 3 µV 00.3 + 3 µV 0.2 + 3 µV 100 0.5 -40

10 M - 20 M 1 M 00.6 + 3 µV 00.5 + 3 µV 0.4 + 3 µV 150 0.5 -34
20 M - 30 M 1 M 10.5 + 15 µV 10.5 + 3 µV 0 1 + 3 µV 300 0.5 -34

Additional Operating Information:

dBm reference = 50 Ω
Range boundaries are at voltage points, dBm levels are approximat e.

dBm = 10 log

Minimum output: 300 µV (-57 dBm)
Frequency uncertainty: ±0.01 %
Frequency resolution: 11,999 counts to 1.1999 MHz, 119 counts to 30 MHz.
Overload protection: A short circuit on t he wideband out put will not result in damage. After sett ling time, normal operation is

restored upon removal.

Resolution

Power

(

1 mW

) ; 0.22361 V across 50 Ω = 1 m W or 0 dBm

Amplitude Flatness, 1 kHz Reference

Voltage Range

1.1 mV 3 mV >3 m V

Temperature

Coefficient

Settling

Time To

Full

Accuracy

Harmonic
Distortion

1-34

Introduction and Specifications

General Specifications

1-33. General Specifications

Warm-Up Time: Twice the time since last warmed up, to a maximum of 30 minutes.
System installation: Rear output configuration and rack- mount kit available.
Standard interfaces: IEEE-488, RS-232, 5725A, 5205A or 5215A, 5220A, phase lock in (BNC), phase

reference out (BNC).

Temperature performance: Operating: 0 °C to 50 °C. Calibration: 15 °C to 35 °C. Storage: -40 °C to
75 °C; DC Zeros calibration required every 30 days.

Relative humidity: Operating: <80 % to 30 °C, <70 % to 40 °C, <40 % to 50 °C. Storage: <95 %, non­condensing. A power stabilization period of four days may be required after extended storage at high
temperature and humidity.

Safety: Designed to comply with UL3111; EN61010; CSA C22.2 No. 1010; ANSI/ISA S82.01-1994
Guard isolation: 20 V
EMI/RFI: Designed to comply with FCC Rules Part 15, Subpart B, Class B; EN50081-1, EN50082-1
Electro Static Discharge: This instrument meets criteria C for ESD requirements per EN61326
Line Power: 47 to 63 Hz; ±10 % allowed about selectable nominal line voltage: 100 V, 110 V, 115 V,

120 V, 200 V, 220 V, 230 V, 240 V. Maximum power: 5700A/5720A, 300 VA; 5725A, 750 VA.

1

Size:

5700A/5720A: Height 17.8 cm (7 in), standard rack increment, plus 1.5 cm (0.6 in) for feet; Width 43.2 cm
(17 in), standard rack width; Depth 63.0 cm (24.8 in), overall; 57.8 cm (22.7 in), rack depth.

5725A: Height 13.3 cm, (5.25 in); Width and depth same as 5700A/5720A. Both units project 5.1 cm, (2 in)
from rack front.

Weight: 5700A/5720A: 27kg (62 lbs); 5725A: 32kg (70 lbs).

43.2 cm (17 in)

17.8 cm (7 in)

63 cm (24.8 in)

6.35 cm (2.5 in)

FOR CABLE

ACCESS

1-35

5700A/5720A Series II

Operators Manual

1-34. Auxiliary Amplifier Specifications

For complete specifications, see the 5205A and 5220A Operators Manuals.

5205A (220V - 1100 V ac, 0 V - 1100 V dc)

Overshoot: < 10 %
Distortion (bandwidth 10 Hz - 1 MHz):

10 Hz - 20 kHz
20 kHz - 50 kHz
50 kHz - 100 kHz

Frequency

(Hz)

0.07 %

0.2 %

0.25 %

90 Day Accuracy

at 23° ±5 °C

± (% output + % range)

Temperature Coefficient for

0°-18 °C and 28°-50 °C

± (ppm output + ppm range)/ °C

00 dc
010 - 40
040 - 20 k

20 k - 50 k
50 k - 100 k

0.05 + 0.005

0.15 + 0.005

0.04 + 0.004

0.08 + 0.006

00.1 + 0.01

5220A (AC Current, 180-day specifications):

Accuracy:

20 Hz - 1 kHz
1 kHz - 5 kHz

Temperature Coefficient (0° - 18 °C and 28° - 50 °C): (0.003 % + 100 µA)/°C

Distortion (bandwidth 300 kHz):

20 Hz - 1 kHz
1 kHz - 5 kHz

Note: 5700A/5720A combined with 5220A is not specified for inductive loads.

0.07% + 1 mA
(0.07% + 1mA) x frequency in kHz

0.1% + 1 mA
(0.1% + 1 mA) x frequency in kHz

15 + 3
45 + 3
15 + 3
50 + 10
70 + 20

1-36

Chapter 2

Installation

Title Page

2-1. Introduction.......................................................................................... 2-3

2-2. Unpacking and Inspection.................................................................... 2-3

2-3. Service Information.............................................................................. 2-4

2-4. Contacting Fluke .................................................................................. 2-4

2-5. Placement and Rack Mounting............................................................. 2-4

2-6. Cooling Considerations........................................................................ 2-4

2-7. Accessing the Fuse............................................................................... 2-5

2-8. Selecting Line Voltage......................................................................... 2-6

2-9. Connecting to Line Power.................................................................... 2-8

2-10. Connecting a 5725A Amplifier............................................................ 2-8

2-11. Selecting Output Binding Posts............................................................ 2-8

2-1

5700A/5720A Series II

Operators Manual

2-2

The calibrator can supply lethal voltages to the front and rear
binding posts. Read this chapter before operati ng the
calibrator.

2-1. Introduction

This chapter provides instructions for unpacking and installing the calibrator. The
procedures for line voltage selection, fuse replacement, and connection to line power are
provided here. Read this chapter before operating the calibrator.

Instructions for cable connections other than line power connection can be found in the
following chapters of the manual:

• UUT (Unit Under Test) connections: Chapter 4

• IEEE-488 interface bus connection: Chapter 5

• RS-232-C serial interface connection: Chapter 6

• Option 5700-03 Wideband AC Module connection: Chapter 4

• Auxiliary amplifier connections: Chapter 4

WWarning

Installation

Introduction

2

2-2. Unpacking and Inspection

The calibrator is shipped in a container designed to prevent damage during shipping.
Inspect the calibrator carefully for damage, and immediately report any damage to the
shipper. Instructions for inspection and claims are included in the shipping container.

When you unpack the calibrator, check for all the standard equipment listed in Table 2-1
and check the shipping order for any additional items ordered. Refer to Chapter 8 for
information about options and accessories. Report any shortage to the place of purchase
or to the nearest Fluke Service Center. If performance tests are required for your
acceptance procedures, refer to the 5700A/5720A Series II Service Manual for
instructions.

If you need to reship the calibrator, use the original container. If it is not available, you

can order a new container from Fluke by indicating the calibrator’s model and serial
number.

Table 2-1. Standard Equipment

Item Model or Part Number

Calibrator 5700A/5720A Series II
Line Power Cord See Table 2-2 and Figure 2-2
5700A/5720A Series II Manual Set 1668111

5700A/5720A Series II Operators Ref Guide 601648
5700A/5720A Series II Remote Prog Ref Guide 601655
5700A/5720A Series II Getting Started 1668111
5700A/5720A Series II Manual CD 1668127

Certificate of Calibration No part number

2-3

5700A/5720A Series II

Operators Manual

2-3. Service Information

Each calibrator is warranted to the original purchaser for a period of one year beginning
on the date received. The warranty is located at the front of this manual.

Service and technical advice for the calibrator is available at Fluke Service Centers. For
a complete list of Fluke Service Centers, visit www.fluke.com.

After-warranty service is available, but you may choose to repair the calibrator using the
information in the Troubleshooting Chapter of the 5700A/5720A Series II Service
Manual and the Module Exchange Program. Refer to the Fluke catalog or contact a
Service Center representative for the module exchange procedure.

2-4. Contacting Fluke

To order accessories, receive operating assistance, or get the location of the nearest
Fluke distributor or Service Center, call:

USA: 1-888-99-FLUKE (1-888-993-5853)
Canada: 1-800-36-FLUKE (1-800-363-5853)
Europe: [phone]
Japan: [phone]
Singapore: [phone]
Anywhere in the world: [phone]

Or, visit Fluke’s Web site at

www.fluke.com.

2-5. Placement and Rack Mounting

Place the calibrator on top of a bench or mounted in a standard-width, 24-inch (61-cm)
deep equipment rack. For bench-top use, the calibrator is equipped with non-slipping,
non-marring feet. To mount the calibrator in an equipment rack, use the Rack Mount Kit,
Model Y-5737; instructions are included with the kit. For convenience, the rack mount
instruction sheet can be stored in the binder of this manual.

2-6. Cooling Considerations

Caution

Damage caused by overheating may occur if the area around
the air intake is restricted, the int ake ai r i s t oo w arm, or t he air
filter becomes clogged.

A hidden but important feature of the calibrator is its internal cooling system. Baffles
direct cooling air from the fans throughout the chassis to internally dissipate heat during
operation. The accuracy and dependability of all internal parts of the calibrator are
enhanced by maintaining the coolest possible internal temperature. By observing the
following rules, you can lengthen the life of the calibrator and enhance its performance:

• The area around the air filter must be at least 3 inches from nearby walls or rack

enclosures.

• The exhaust perforations on the sides of the calibrator must be clear of obstructions.

• The air entering the instrument must be room temperature. Make sure that exhaust

from another instrument is not directed into the fan inlet.

2-4

• Clean the air filter every 30 days or more frequently if the calibrator is operated in a

dusty environment. (Instructions for cleaning the air filter are in Chapter 7.)

2-7. Accessing the Fuse

To prevent instrument damage, verify that the correct f use is
installed for the line voltage setting.

The line power fuse is accessible on the rear panel. The fuse rating label to the right of
the fuse holder (labeled F1) shows the correct replacement fuse rating for each line
voltage setting. To check or replace the fuse, refer to Figure 2-1 and proceed as follows:

1. Disconnect line power.

2. Using a standard screwdriver, loosen the fuse holder by turning the slot labeled F1

until the cap and fuse pop free.

3. Replace the fuse and holder.

Caution

Installation

Accessing the Fuse

2

CHASSIS
GROUND

S2 S3 S4

FUSE -F1

VOLTAGE

SELECTION

S2 S3 S4

100V
110V
115V
120V

!

FUSE-F1

T 125A

250V
(SB)

SELECTION

200V
220V
230V
240V

VOLTAGE

S2 S3 S4

FUSE-F1

T 125A

250V
(SB)

Figure 2-1. Accessing the Fuse

2-5

5700A/5720A Series II

Operators Manual

2-8. Selecting Line Voltage

The calibrator arrives from the factory configured for the line voltage normally
appropriate for the country of purchase, or as specified at the time of your purchase
order. The calibrator also comes with the appropriate line power plug for the country of
purchase. If you need a different type, refer to Table 2-2 and Figure 2-2. They list and
illustrate the line power plug types available from Fluke.

Check the line power label on the rear panel of the calibrator to verify that the line
voltage matches local line power. Figure 2-3 shows the location of the line power label.

You can set the calibrator to operate from eight different nominal line voltages; each

voltage setting has a voltage tolerance of ± 10%, and frequency range of 47 to 63 Hz.
The line voltage switches are located on the bottom left side of the rear panel.

To change the line voltage setting, set the line voltage selection switches to the correct
setting shown in Figure 2-3.

Type Voltage/Current Fluke Option Number

Table 2-2. Line Power Cord Types Available from Fluke

North America 120V/15A LC-1
North America 240V/15A LC-2
Universal Euro 220V/16A LC-3
United Kingdom 240V/13A LC-4
Switzerland 220V/10A LC-5
Australia 240V/10A LC-6
South Africa 240V/5A LC-7

LC-1 LC-2 LC-3 LC-4

2-6

LC-5 LC-6 LC-7

Figure 2-2. Line Power Cord Types Available from Fluke

Installation

Selecting Line Voltage

2

VOLTAGE

SELECTION

S2 S3 S4

100V
110V
115V
120V

VOLTAGE

SELECTION

S2 S3 S4

100V
110V
115V
120V

CAUTION

FOR FIRE PROTECTION REPLACE ONLY

WITH A 250V FUSE OF INDICATED RATING.

FUSE-F1

T 125A

250V

(SB)

VOLTAGE

SELECTION

200V
220V
230V
240V

CAUTION

FOR FIRE PROTECTION REPLACE ONLY

WITH A 250V FUSE OF INDICATED RATING.

FUSE-F1

T 125A

250V
(SB)

SELECTION

200V
220V
230V
240V

VOLTAGE

S2 S3 S4

FUSE-F1

T 125A

250V
(SB)

S2 S3 S4

FUSE-F1

T 125A

250V

(SB)

Figure 2-3. Line Power Label and Switch Location

2-7

5700A/5720A Series II

Operators Manual

2-9. Connecting to Line Power

After you verify that the line voltage selection switches are set to the correct positions,
verify that the correct fuse for that line voltage is installed. Connect the calibrator to a
properly grounded three-prong outlet.

2-10. Connecting a 5725A Amplifier

The calibrator provides an interface connector for the Fluke 5725A amplifier. You
designate the active amplifier for voltage and current boost in a setup menu. That
procedure is located in the beginning of Chapter 4. Refer to the 5725A Instruction
Manual for the installation procedure.

Warning

To avoid shock hazard, connect the factory supplied three­conductor line power cord to a properly grounded power outlet.
Do not use a two-conductor adapter or extension cord; this will
break the protective ground connection. If a t wo-conductor
power cord must be used, a protective grounding wir e must be
connected between the ground terminal and earth ground
before connecting the power cord or operating the instrument.

2-11. Selecting Output Binding Posts

The calibrator is equipped with binding posts for OUTPUT, SENSE, and V GUARD
(Voltage Guard) on the front and rear panels. Only one set of binding posts can be
enabled at the same time. (GND binding posts on both front and rear are always
connected to chassis ground.) The calibrator is shipped with the front panel binding posts
enabled. The procedure to enable the rear panel binding posts involves opening the case
of the calibrator, and repositioning a cable. This procedure is described in Chapter 4 of
the 5700A/5720A Series II Service Manual.

Note

A Type "N" connector for output from the Option 5700-03 Wideband AC

Voltage Module is available only on the calibrator’s front panel. A
terminal for I GUARD is available only on the rear panel. (Connection to
the I GUARD terminal is normally required only at low current levels in
calibration systems with long cable runs.) Chapters 3 and 4 contain
detailed information about the function and use of all binding posts.

2-8

Chapter 3

Features

Title Page

3-1. Introduction.......................................................................................... 3-3

3-2. Front Panel Features............................................................................. 3-3

3-3. Display Screen Saver....................................................................... 3-3

3-4. Rear Panel Features.............................................................................. 3-12

3-5. Softkey Menu Tree............................................................................... 3-14

3-1

5700A/5720A Series II

Operators Manual

3-2

3-1. Introduction

This chapter is a reference for the functions and locations of the calibrator’s front and
rear panel features, and provides brief but thorough descriptions of each features, for
quick access. Please read this information before operating the calibrator. Front panel
operating instructions for the calibrator are provided in Chapter 4, and remote operating
instructions are provided in Chapter 5.

3-2. Front Panel Features

Front panel features (including all controls, displays, indicators, and terminals) are
shown in Figure 3-1. Each front panel feature is briefly described in Table 3-1.

3-3. Display Screen Saver

The Control Display (described in Table 3-1) is equipped with a screen saver that

lengthens the display’s life when the front panel is not being used. The display becomes
blank after 30 minutes of inactivity, unless it is one of the operating states that override
the screen saver.

Features

Introduction

3

If the screen saver is in effect, you can restore the display by pressing C. Pressing
another key, or turning the knob, will also restore the display in addition to performing
the command selected by the key or knob.

The screen saver will not go into effect after 30 minutes of inactivity if:

• the Setup Menu or any of its submenus are displayed

• the calibrator is being operated under remote control

• the calibrator is undergoing calibration or diagnostics

• an error message is displayed

3-3

5700A/5720A Series II

Operators Manual

A
Output Display

B
Control Display

C

O

(Operate/Standby)

D

X (External Sense)

Table 3-1. Front Panel Features

A two-line vacuum-fluorescent display that shows output amplitude and

frequency. The top line shows the active output value (or potential output
value if in standby) using up to eight digits plus a polarity sign. The bottom
line shows output frequency (or potential output frequency if the calibrator is
in standby) using five digits. Following the digits on both lines of the Output
Display are four unit annunciators. (Examples of units are: mV, µA, and

kHz.) Annunciators below the amplitude line on the Output Display indicate
the following active conditions:

OPERATE Lit when an output is active at the binding posts or auxiliary

amplifier

STANDBY Lit when the calibrator is in standby
ADDR Lit when the calibrator is addressed over the IEEE-488

interface

∅-LCK Lit when the calibrator’s output is phase locked to a signal at

the rear panel PHASE LOCK IN connector

∅-SHF Lit when the calibrator’s output has a programmed phase

difference with a signal at the rear panel VARIABLE PHASE
OUT connector

U (Unsettled.) When you change the output, this annunciator

lights briefly until the output settles to within specification.

An alphanumeric vacuum-fluorescent display that shows data entries, UUT

error adjustments, menus, and other prompts and messages. Each menu
contains a set of softkey labels that identify the functions of the softkeys
directly below them. The changing menus provide access to many different
functions through the five softkeys plus the P key. (See Figure 3-3,
Softkey Menu Tree.)

Toggles the calibrator between operate and standby modes. In standby

mode, the OUTPUT binding posts are internally disconnected from the
calibrator. The calibrator normally starts up in standby. Status is indicated
by the lighted OPERATE or STANDBY annunciator above the OUTPUT
binding posts. Pressing the O key does not change any other aspect of
the calibrator’s status. The calibrator automatically switches to standby
when any of the following events occur:

• The

• A voltage ≥ 22V is selected when the previous output voltage was less

• The output location changes (e.g., an amplifier is selected). The

• The output function changes to voltage <22V, ac voltage >22V, dc

Opens and closes an internal connection between the SENSE and OUTPUT
binding posts. The calibrator powers up with SENSE and OUTPUT
connected internally (the SENSE binding posts are open circuited), with

r key is pressed.

than 22V.

exception to this is when the 5725A is selected for ac voltage or current,
provided the calibrator’s current output location is set to "5725A". In this
case, the mode does not toggle.

voltage >22V, dc current, ac current, or resistance. The exception is
when switching between dc and ac current in 5100B emulation mode.

X off. Pressing X disconnects the sense lines from the OUTPUT

binding posts, and connects them to the SENSE binding posts internally.

3-4

Front Panel Features

Table 3-1. Front Panel Features (continued)

External Sensing should be used in the dc voltage function when the UUT
draws enough current to produce a significant voltage drop in the cables,
and in the resistance function when the UUT has a four-wire ohms input and
the calibrator is set to 100 kΩ or less. External sensing can also be used in
conjunction with the two-wire compensation circuit to compensate for lead
resistance at the UUT terminals. Refer to "When to use External Sensing,"
"Four-Wire vs. Two-Wire Resistance Connections," and "Cable
Connections" in Chapter 4 for external sensing instructions.

Features

3

E

x (External Guard)

F

w (Wideband)

1 3

Opens and closes an internal connection between V GUARD (voltage
guard) and OUTPUT LO. The calibrator powers up with the voltage guard
internally connected to OUTPUT LO and the EX GRD indicator off. Toggling

x on disconnects OUTPUT LO from the voltage guard.

The V GUARD binding post provides an external connection point for the
voltage internal guard. For a UUT with floating inputs, the V GUARD should
be connected to LO internally. (
input, the GUARD may be externally connected to the grounded UUT input.

x is on.) See Chapter 4 for instructions.

(
Toggles the Wideband AC Voltage Module (Option 5700A-03) and sets the

calibrator to standby. When enabled, the ac voltage output from 10 Hz to
30 MHz is available at the front-panel coaxial connector. Wideband is
disabled whenever W BND is toggled off or when another function (such as
current) is selected. Chapter 4 contains more information.

5

4

6

x is off.) For a UUT with a grounded

2

Figure 3-1. Front Panel Features

3-5

5700A/5720A Series II

Operators Manual

G

B

H

P (Previous Menu)

I

Softkeys

Table 3-1. Front Panel Features (continued)

Enables or disables output from an amplifier, when it would not otherwise be
automatically selected. Sets the calibrator to standby if this selection moves
the output location.

When available, an amplifier is automatically selected for output settings

that exceed the calibrator’s capabilities but fall within the limits of the
selected amplifier. The
an output setting that is available from either the calibrator or the amplifier.
This allows you to take advantage of amplifier capabilities besides extended
range, such as higher compliance voltage.

For both voltage and current, the amplifier is assumed to be a 5725A unless
another model is designated in the setup menus.

The P softkey aborts the current operational state of the calibrator and
recalls the previous set of menu choices. Some menus display a more
specific label for this key, such as "DONE Setting Up".

The functions of the five unlabeled softkeys are identified by labels on the
Control Display directly above each key. The functions change during
operation so that many different functions are accessible through these
keys. A group of softkey labels is called a menu. A group of interconnected
menus is called a menu tree. Figure 3-3 shows the menu tree for the
calibrator.

B key is only needed to activate an amplifier for

J

Power Switch

K

< a >

L

r

Turns the power on and off. The switch remains locked inwards when the
power is on. Pushing the switch again unlocks it and turns the power off.

The output adjustment controls. If any of these keys are pressed or the knob
is rotated, a digit on the Output Display becomes highlighted and the output
increments or decrements as the knob is rotated. If a digit rolls past 0 or 9,
the digit to its left or right is carried. An error display appears on the Control
Display, showing the difference between the original (reference) output and
the new (adjusted) output.

< and > keys adjust the magnitude of changes by moving the

The
highlighted digit. In the ac functions, the
or current to frequency. For voltage and current outputs, the knob and arrow
keys are used to adjust output until the UUT reads correctly. The error
display then displays UUT deviation from the reference.

Since resistances are not adjustable, the knob and arrow keys adjust a
value on the Control Display to equal the UUT reading. Refer to "Error Mode
Operation" in Chapter 4 for details of entering, operating, and exiting Error
Mode.

The rotary knob is also used to adjust the phase of the ac output signal with
respect to a signal at the VARIABLE PHASE OUT connector after the
"Phase Ctrls Menu" softkey is pressed.

Aborts the current operating state of the calibrator and returns it to its
power-up default state. r has no effect when operating under remote
control.

a key toggles between voltage

3-6

M

S

Front Panel Features

Table 3-1. Front Panel Features (continued)

Identifies a UUT full-scale endpoint for checking linearity and does not
change the output. If the output was adjusted with the rotary knob,
subsequent keyed-in output values are multiplied by a scale factor. Scaling
is deactivated by pressing S again, or by selecting another function.
Scaling is not available for resistance outputs. See "Linearity Checking
Using Offset and Scale" in Chapter 4 for details.

Features

3

N

L

O

Z

P

Y

Calls up a menu that allows you to specify limits beyond which the calibrator
will not operate, to protect your test equipment and personnel.

Immediately changes the output to one tenth the reference value (not
necessarily the present output value) if the value is within performance
limits.

Immediately changes the output to ten times the reference value (not
necessarily the present output value) if the value is within performance
limits. This key sets the calibrator to standby if this change is from below
22V to 22V or more.

8

7

9

16

15

Figure 3-1. Front Panel Features (continued)

14

13

12

11

10

3-7

5700A/5720A Series II

Operators Manual

Table 3-1. Front Panel Features (continued)

Q

s (Specification)

R

o

S

C (Clear Entry)

T

N

U

D

Causes the calibrator to compute and display its absolute uncertainty for the
present output setting for the calibration interval selected in the setup
menus.

Identifies a UUT zero-scale endpoint and does not change the output.

Subsequent keyed-in output values have the offset value (the calibrator’s
output value when OFFSET was pressed) added to them. Offset mode is
deactivated by pressing OFFSET again or by selecting another function.
Offsets are available for dc outputs only. See "Programming an OFFSET" in
Chapter 4 for details.

Clears a partially completed keypad entry from the Control Display or clears
an error message that requires acknowledgement. If there is a partially
completed entry when C is pressed, the output is unaffected.

Only active during error mode operation, the N key establishes the
present output value as a new reference for meter error computation.

When in the ac volts or wideband function, and if no entry is in progress, the
dBm key shows the equivalent dBm output on the Control Display. For the
ac voltage function, dBm is calculated for a 600Ω load. For the wideband
function, dBm is calculated for a 50Ω resistive termination at the end of a 3­foot 50Ω coaxial cable.

The formula for computing dBm is: 10 * log(power in mW)

V

E

W

Output Function Keys

Examples:
For 3.0V into a 600Ω load, dBm = 10 log(15.000) = 11.7609 dBm
For 3.0V into a 50Ω load, dBm = 10 log(180.000) = 22.5527 dBm
The E key loads an output value that was entered into the Control

Display into the calibrator. If you press
units for the entry, the calibrator keeps the most recently used units. The
multipliers are not saved. For example, if the most recently entered value
was 1 mV, then simply entering 10 produces an output of 10V. (The "V"
units were saved from the last entry, but not the multiplier, "m".)

Another function of the
reference value during error mode operation. Refer to "Error Mode
Operation" in Chapter 4 for details.

Select the output function. The output functions are:

D Decibels relative to 1 mW
V Voltage
A Current
Q Resistance
H Frequency

When Hz is entered, the calibrator automatically switches to ac. When a
new signed (+ or -) output value is entered without specifying Hz, the
calibrator automatically switches back to dc.

E key is to recall the currently-programmed

E without identifying the

3-8

Table 3-1. Front Panel Features (continued)

Features

Front Panel Features

3

X

Multiplier Keys

Y

Numeric Keypad

Z

+

Select output value multipliers. For example, if you enter

3 3 m V, then E, the calibrator output value is 33 mV.

The multiplier keys are:

U micro (10
m milli (10
K kilo (10
M mega (10

Contains number keys for keying in the output amplitude and frequency, as
well as other data such as the time and date. To enter a value, press the
digits of the output value, a multiplier key if necessary, and an output
function key; then press E. For example, for an output of 20 mV,

2 0 m V, then E.

press
If the output function is dc voltage, current, ac voltage entered in dBm, or a

wideband output entered in dBm, pressing + E toggles the
polarity of the output. If the output function is ac voltage or current, pressing

-6

)

-3

)

3

)

6

)

+; then E changes the output to dc.

19

21

20

18

17

26

24

23

22

25

Figure 3-1. Front Panel Features (continued)

3-9

5700A/5720A Series II

Operators Manual

a

WIDEBAND Connector

b

GND Binding Post

c

V GUARD Binding Post

Table 3-1. Front Panel Features (continued)

A Type "N" connector that provides a connection point for output from the
Option 5700A-03 Wideband AC Module. Wideband output specifications are
stated for output levels present at the end of its 3-foot 50Ω coaxial cable
terminated into a 50Ω purely resistive load. The connector shell is
connected to chassis ground. Refer to Chapter 4 for connecting and
operating instructions for the wideband module.

If the calibrator is the location of the ground reference point in a system, the
GND binding post can be used for connecting other instruments to earth
ground. (The chassis is normally connected to earth ground through the
three-conductor line cord instead of through the earth ground binding post.)
Refer to "Cable Connections" in Chapter 4 for details. Included with the
calibrator is a brass strap that connects GND to V GUARD.

Provides an external connection point for the internal voltage guard. For a
UUT with floating (ungrounded) inputs, the V GUARD should be connected
to LO internally (x off). For a UUT with a grounded input, the V GUARD
must be externally connected to the grounded UUT input (
maximum allowable potential between the V GUARD connector and chassis
ground is 20V peak. Refer to "When to use External Voltage Guard" and
"Cable Connections" in Chapter 4 for details.

x on). The

d

SENSE Binding Posts

e

OUTPUT Binding Posts

Used in the resistance and voltage functions for sensing at the UUT after
you have selected external sense by pressing X or by remote command.

External Sensing should be used in the dc voltage function when the UUT
draws enough current to produce a significant voltage drop in the cables,
and in the resistance function when the UUT has a four-wire ohms input and
the calibrator is set to 100 kΩ or less. External sensing can also be used in
the two-wire ohms function to allow the two-wire compensation circuitry to
the UUT terminals. Refer to Refer to "When to use External Sensing," "Four­Wire vs. Two-Wire Resistance Connections," and "Cable Connections" in
Chapter 4 for external sensing instructions and illustrations of SENSE
connections.

Provide connection points for ac and dc current and voltage output, as well
as resistance. The function of each OUTPUT binding post is defined below:

LO
The common binding post for all output functions including 5725A amplified

voltage output, but not Option 5700A-03 Wideband AC or other auxiliary
amplifier output.

HI
The active binding post for all output functions including 5725A amplified

voltage output, but not Option 5700A-03 Wideband AC or other auxiliary
amplifier output.

AUX CURRENT OUTPUT
An optional active binding post for current. It is convenient to use the AUX

CURRENT OUTPUT binding post when calibrating a UUT with a separate
current input terminal. Refer to "Connecting the calibrator to the UUT" in
Chapter 4 for instructions for using this binding post.

3-10

Features

Rear Panel Features

2931

3

30

28 27

Figure 3-1. Front Panel Features (continued)

3-11

5700A/5720A Series II

Operators Manual

3-4. Rear Panel Features

Rear panel features (including all terminals, sockets, and connectors) are shown in
Figure 3-2. Each rear panel feature is briefly described in Table 3-2.

Table 3-2. Rear Panel Features

A

Fan Filter

B

5725A AMPLIFIER Connector

C

VARIABLE PHASE OUT BNC
Connector

D

PHASE LOCK IN BNC
Connector

E

Rear Panel Binding Posts

The filter covers the air intake to keep dust and debris out of chassis air
baffles. Fans inside the calibrator provide a constant cooling air flow
throughout the chassis. Circuitry inside the calibrator monitors correct
operation of the internal fans.

Provides the analog and digital interface for the Fluke 5725A Amplifier.
After connecting the 5725A to the 5725A AMPLIFIER connector, you

control the 5725A from the calibrator’s front panel or by remote commands.
Refer to "Using an Auxiliary Amplifier" in Chapter 4 for details.

Provides access to a variable-phase nominal 2.5V rms sine-wave signal,
intended for a 3 kΩ load. The phase of this signal can be adjusted using
the arrow keys and rotary knob (or by remote commands) to lead or lag the
main calibrator output signal by up to 180 degrees. The connector shell is
not connected directly to chassis ground. It is connected internally to the
OUTPUT LO binding post. The maximum allowable potential between the
connector shell and chassis ground is 20V peak. Refer to "Variable Phase
Output" in Chapter 4 for details.

Provides the input for an external signal onto which the calibrator can be
phase locked. (1 to 10V rms, 10 kΩ input impedance.) The connector shell
is not connected directly to chassis ground. It is connected internally to the
OUTPUT LO binding post. The maximum allowable potential between the
connector shell and chassis ground is 20V peak. Refer to "Phase Locking
to an External Signal," in Chapter 4 for details.

The rear-panel OUTPUT, SENSE, and V GUARD and I GUARD binding
posts are alternative connections to the UUT. An internal cable enables
either the front or rear binding posts. The procedure to disable the front
panel binding posts and enable the rear panel binding posts involves
opening the cover of the calibrator and is described in Chapter 4 of the

5700A/5720A Series II Service Manual

.

3-12

The I GUARD binding post provides an external connection point for the
internal current guard. The current guard is used when the calibrator is
supplying low-level ac current through a long cable to remove errors
introduced by leakage through the cable capacitance. The I GUARD
binding post is available on the rear panel where it is convenient for system
applications. Refer to "When to use the Current Guard" in Chapter 4 for
details.

AUX CURRENT OUTPUT is not available on the rear panel binding posts.

Table 3-2. Rear Panel Features (continued)

Features

Rear Panel Features

3

F

IEEE-488 Connector

G

CALIBRATION Switch

H

RS 232C Connector

A standard interface connector for operating the calibrator in remote
control as a Talker or Listener on the IEEE-488 Bus. Refer to Chapter 5 for
bus connection and remote programming instructions.

A slide switch that write enables and disables the nonvolatile memory that
stores calibration constants, dates, and setup parameter settings.
Switching to ENABLE write enables the memory, and switching to
NORMAL protects data in memory from being overwritten. The switch must
be in the ENABLE position to set the clock. The switch is recessed to allow
the metrologist to cover it with a calibration sticker to guarantee calibrator
integrity.

A male (DTE) serial port connector for transmitting internal calibration
constant data to a printer, monitor, or host computer, and for remote
control of the calibrator. Chapter 6 describes proper cabling, how to set up
the serial interface, and how to transmit data from the calibrator. Chapter 5
describes how to use the serial interface for remote control.

1 2 3 4

Figure 3-2. Rear Panel Features

678

5

3-13

5700A/5720A Series II

Operators Manual

Table 3-2. Rear Panel Features (continued)

I

Line Voltage Switch and Fuse
Rating Label

J

F1 Fuseholder

K

AC PWR INPUT Connector

L

Line Voltage Selection
Switches

M

CHASSIS GROUND Binding
Post

Shows the various settings of the line voltage switches, and the correct
replacement fuse ratings for fuse F1 for operating voltages of 110 (90-132)
and 220 (180-264) V ac. Refer to "Accessing the Fuse" in Chapter 2 for the
fuse replacement procedure.

The line power fuse. Refer to "Accessing the Fuse" in Chapter 2 for fuse
rating information and the fuse replacement procedure.

A grounded male three-prong connector that accepts the line power cord.

Select the operating line voltage. Refer to "Selecting Line Voltage" in
Chapter 2 for how to select operating line voltage.

A binding post that is internally grounded to the chassis. If the calibrator is
the location of the ground reference point in a system, this binding post can
be used for connecting other instruments to earth ground. (The chassis is
normally connected to earth ground through the three-conductor line cord
instead of through the earth ground binding post.) Refer to "Connecting to
the UUT" in Chapter 4 for details.

3-14

VOLTAGE

SELECTION

100V
110V
115V
120V

10111213

Figure 3-2. Front Panel Features (continued)

3-5. Softkey Menu Tree

The functions of the six softkeys described under “Front Panel Features”, are represented
by menus containing labels displayed directly above each key. These functions change
whenever you access a new menu. Figure 3-3 shows the hierarchy of all the menus
available for the calibrator.

S2 S3 S4

FUSE-F1

T 125A

250V

(SB)

SELECTION

200V
220V
230V
240V

VOLTAGE

S2 S3 S4

FUSE-F1

T 125A

250V
(SB)

9

Features

Softkey Menu Tree

3

Figure 3-3. Softkey Menu Tree

3-15

5700A/5720A Series II

Operators Manual

3-16

Chapter 4

Front Panel Operation

Title Page

4-1. Introduction.......................................................................................... 4-3

4-2. Powering on the Calibrator .................................................................. 4-4

4-3. Warm Up.............................................................................................. 4-4

4-4. DC Zeros .............................................................................................. 4-5

4-5. Executing DC Zeros......................................................................... 4-5

4-6. DC Zeros Reminder......................................................................... 4-5

4-7. The Setup Menu ................................................................................... 4-6

4-8. Instrument Setup.............................................................................. 4-7

4-9. Format EEPROM Menu................................................................... 4-7

4-10. Spec Format Setup Menu................................................................. 4-8

4-11. Setting the Internal Clock/Calendar................................................. 4-9

4-12. Selecting Amplifiers ........................................................................ 4-10

4-13. Checking the Instrument Configuration........................................... 4-11

4-14. Special Functions Menu................................................................... 4-12

4-15. Resetting the Calibrator........................................................................ 4-12

4-16. Operate and Standby Modes................................................................. 4-13

4-17. Connecting the Calibrator to a UUT.................................................... 4-13

4-18. Recommended Cable and Connector Types.................................... 4-13

4-19. When to Use External Sensing ........................................................ 4-14

4-20. When to Use the External Voltage Guard........................................ 4-15

4-21. When to Use the Current Guard....................................................... 4-15

4-22. Four-Wire Vs. Two-Wire Resistance Connections ......................... 4-16

4-23. Cable Connection Instructions......................................................... 4-16

4-24. Setting the Output................................................................................. 4-22

4-25. DC Voltage Output .......................................................................... 4-24

4-26. AC Voltage Output .......................................................................... 4-25

4-27. DC Current Output........................................................................... 4-27

4-28. AC Current Output........................................................................... 4-28

4-29. Resistance Output ............................................................................ 4-30

4-1

5700A/5720A Series II

Operators Manual

4-30. Wideband AC Voltage Output (Option 5700A-03)......................... 4-32

4-31. Variable Phase Output ..................................................................... 4-34

4-32. Phase Locking to an External Signal.................................................... 4-35

4-33. Using an Auxiliary Amplifier............................................................... 4-36

4-34. 5725A Amplifier Output.................................................................. 4-37

4-35. Checking the Calibrator’s Uncertainty Specification .......................... 4-38

4-36. Error Mode Operation.......................................................................... 4-38

4-37. Error Mode Overview...................................................................... 4-39

4-38. Entering Error Mode.................................................................... 4-39

4-39. Exiting Error Mode...................................................................... 4-39

4-40. Using Error Mode........................................................................ 4-40

4-41. Reading the UUT Error: AC and DC Voltage and Current Output. 4-40

4-42. Reading the UUT Error: Resistance Output .................................... 4-41

4-43. Introduction to Offset, Scale, and Linearity Errors.............................. 4-42

4-44. Offset Error...................................................................................... 4-42

4-45. Scale Error ....................................................................................... 4-43

4-46. Linearity Error ................................................................................. 4-44

4-47. Combining the Error Types.............................................................. 4-44

4-48. Programming an Offset........................................................................ 4-45

4-49. Programming a Scale Factor ................................................................ 4-46

4-50. Linearity Checking Using Offset and Scale......................................... 4-47

4-51. Setting Output Limits........................................................................... 4-50

4-52. Setting Voltage and Current Limits................................................. 4-50

4-53. Sample Applications............................................................................. 4-51

4-54. Calibrating Fluke 70 Series Multimeter........................................... 4-51

4-55. Cables .......................................................................................... 4-52

4-56. Guarding...................................................................................... 4-52

4-57. Sensing......................................................................................... 4-52

4-58. Testing the Meter......................................................................... 4-53

4-59. Calibrating the Meter................................................................... 4-54

4-60. Calibrating a Fluke Model 8840A Series Digital Multimeter ......... 4-56

4-61. Cables .......................................................................................... 4-56

4-62. Guarding...................................................................................... 4-56

4-63. Sensing......................................................................................... 4-58

4-64. Basic Calibration Procedure........................................................ 4-58

4-65. Calibration Setup Procedure........................................................ 4-58

4-66. A/D Calibration ........................................................................... 4-59

4-67. Offset and Gain Calibration......................................................... 4-60

4-68. High Frequency AC Calibration.................................................. 4-62

4-69. Performing A Wideband Flatness Test............................................ 4-63

4-2

4-1. Introduction

This chapter provides instructions for operating the calibrator from the front panel,
which includes all aspects of setting up and configuring the calibrator. Sample
applications are included that describe how to calibrate a Fluke 70 Series Multimeter and
an 8840A Series Digital Multimeter. Descriptions and instructions for programming
offsets, scale factors, and linearity checks are also provided.

Before you begin following the procedures in this chapter, you should be familiar with
the front panel controls, displays, and terminals, which are identified and described in
detail in Chapter 3. Once you are familiar with the front panel, be sure to warm up the
calibrator and ensure its dc zeros calibration, in accordance with the instructions at the
beginning of this chapter. For information on using remote commands to operate the
calibrator, refer to Chapter 5.

The calibrator is capable of supplying l et hal voltages. Do not
make connections to the output terminals w hen any voltage is
present. Placing the instrument in st andby may not be enough
to avoid shock hazard, since the O key could be pressed
accidentally. Press r and verify that st andby i s lit before
making connections to the output terminal s.

WWarning

Front Panel Operation

Introduction

4

4-3

5700A/5720A Series II

Operators Manual

4-2. Powering on the Calibrator

When you power on the calibrator, the Control Display appears as shown below and then
displays a series of tests, as the calibrator performs self-tests. If a self test fails, a prompt
on the Control Display identifies the failed test and lets you choose whether to continue
self testing or stop and run self diagnostics. For information about self-diagnostics, refer
to Chapter 3 of the 5700A/5720A Series II Service Manual.

WWarning

To avoid electric shock, make sure the calibrator is safel y
grounded as described in Chapter 2.

Caution

Before turning the calibrator on, make sure that the l i ne vol t age
selection switches are set properly for your line voltage. Refer
to Figure 2-3 or to the line voltage sw itch label and check the
line voltage now if you have not already done so.

After the calibrator passes its self-tests, it powers up to 0V dc in standby, configured for
internal sensing and internal guard, ready to accept an entry from the keypad. The
Control Display now appears as shown below:

PREV

MENU

4-3. Warm Up

The calibrator must always be warmed up, to allow the environmentally controlled
components inside to stabilize, and to ensure that it meets or exceeds the specifications
listed in Chapter 1. Sufficient warmup times are as follows:

• If the calibrator has been powered off for one hour or more, allow at least 30 minutes

of warmup time.

• If the calibrator has been powered off for a length of time less than one hour, allow it

to warm up for at least twice the length of time it was turned off. For example, if it
has been turned off for 10 minutes, allow at least 20 minutes of warmup time.

PREV
MENU

4-4

4-4. DC Zeros

DC zeros is a quick, automatic process that removes any offset error on the 11V and

2.2V ranges, and removes offset and gain errors on the 220 mV range. If a 5725A
Amplifier is attached, it also zeros the 11A dc range. This process takes about 2.5
minutes (plus an additional 30 seconds for the 5725A).

4-5. Executing DC Zeros

To execute dc zeros, proceed as follows from the power-up state:

1. Press the following sequence of softkeys:

“Setup Menus”→“Cal” →“Zero”

2. When the process is finished, a message appears that tells you to press any key to

continue. Press any key to exit the dc zeros display.

3. To return to normal operation, press P twice.

4-6. DC Zeros Reminder

Front Panel Operation

DC Zeros

4

Specifications require that dc zeros be executed at least every 30 days. If the 30-day time
period elapses and dc zeros is not performed, the following message appears on the
display when the calibrator is powered on, or reset.

PREV

MENU

To override the message and perform dc zeros at a more convenient time, press the
softkey under ZERO LATER (the softkey next to P). To perform dc zero at this time,
press one of the softkeys under ZERO NOW.

Note

If you receive this message after powering on the calibrator, allow the
calibrator to warm up before executing dc zeros. Otherwise an error
message appears indicating that the calibrator is not warmed up. To
ensure the best performance, the warmup period should be completed.

4-5

5700A/5720A Series II

Operators Manual

4-7. The Setup Menu

Through the setup menu you have access to various operations and changeable
parameters. Once you set a parameter, it is saved in memory until it is changed,
including during power-off periods.

When you press the “Setup” softkey on the Control Display from the power-up state, the
display changes to:

The list below describes sub-menus available through each softkey and tells you where
you can find further information in the manuals.

• Cal: Opens the calibration menu. Softkeys in this menu activate calibration to

PREV
MENU

external standards, calibration check, and dc zeros calibration. Another softkey
displays calibration date information and another opens a calibration report menu.
This chapter describes dc zeros calibration. Chapter 7 shows this menu and describes
all other calibration procedures.

• Self Test & Diags: Opens the self testing and diagnostics menu. This menu contains

a softkey to run self tests similar to the power-up self tests and softkeys that access
separate menus to diagnose and troubleshoot the calibrator and an attached 5725A
Amplifier. Chapter 5 of the 5700A/5720A Series II Service Manual provides
instructions for using these softkeys.

• Instmt Setup: Opens the instrument setup menu. This menu contains softkeys to

open sub menus that let you change the calibration interval, set up the remote port,
set the clock/calendar, and identify the amplifier model for current and voltage
amplification. Another menu lets you format the EEPROM (Electrically Eraseable
Programmable Read Only Memory), which is nonvolatile memory. This is only
necessary when you want to replace some or all of the information in memory with
default values. The next part of this chapter describes the instrument setup menu and
its sub-menus.

• Instmt Config: Opens a menu that contains two softkeys: one that displays a list of

installed hardware modules and software revision letters, and another that displays
the contents of the user report string. This chapter describes how to use these
softkeys.

• Special Functns: Opens the special functions menu. This menu contains two
softkeys: one that allows turning off ac internal transfers, and one to select the date
format. This menu is described later in this chapter.

4-6

4-8. Instrument Setup

The softkeys in the instrument setup menu (accessed by pressing “Instmt Setup” softkey
in the setup menu) are shown below.

PREV

MENU

The list below describes sub-menus accessed by each softkey and tells you where you
can find further information in the manuals.

• Format EEPROM: Opens a menu that lets you restore all or part of the data in the
EEPROM to factory defaults. The use of this menu is described next.

• Spec Format Setup: Opens a menu that lets you select the confidence level of the
calibration specifications and calibration interval.

Front Panel Operation

The Setup Menu

4

• Set Intrnl Clock: Accesses softkeys that allow you to check and set the date and time
for the clock/calendar. This chapter describes how to set the time and date.

• Boost Amp Types: Selects the auxiliary amplifier model number for current and
voltage boost. This chapter describes how to select the boost amp type.

• Remote Port Setup: Opens setup menus for the IEEE-488 instrument control port
and the RS-232C serial interface port. Chapter 5 describes how to set up the
IEEE-488 interface. Chapter 6 describes how to set up the serial interface.

4-9. Format EEPROM Menu

Use with extreme care. The format EEPROM menu present s
softkeys that permanently erase calibrati on constants.

Pressing “ALL” or “CAL” invalidates the state of calibration of
the 5700A/5720A Series II Calibrator.

Pressing “Format EEPROM” in the instrument setup menu opens the following menu:

Caution

PREV

MENU

4-7

5700A/5720A Series II

Operators Manual

The EEPROM stores calibration constants and dates, setup parameters, and the user
report string in non-volatile memory. Softkeys in this menu let you replace all or part of
the contents with factory defaults. In the case of calibration constants, factory defaults
are the same for all 5700A/5720A Series II calibrators. They are not the calibration
constants obtained when the calibrator was originally calibrated by the factory before
shipment. All the softkeys in this menu require the rear panel CALIBRATION switch to
be in the ENABLE position.

The function of each softkey is described below:

• ALL: Replaces the entire contents of the EEPROM with factory defaults. This would

• CAL: Replaces all calibration constants with factory defaults but leaves all the setup

• RANGE: Removes only the range adjustments made during optional range

• SETUP: Replaces the setup parameters with factory defaults, but leaves the state of

• 5725: Replaces all calibration constants stored in the attached 5725A with factory

be used by service personnel after replacing the EEPROM, for example. It is not
required in normal use.

parameters unchanged. This is also not required in normal use.

calibration. See Chapter 7 for more information about range calibration.

calibration unchanged.

defaults, but leaves the calibrator’s EEPROM contents unchanged.

4-10. Spec Format Setup Menu

Pressing the softkey under “Spec Format Setup” opens the menu shown below, which
provides options for configuring your specification confidence level, and for setting the
calibration interval. Once you have completed making these selections, press “DONE
Setting SpecFmt” to return to the Instrument Setup menu.

PREV

MENU

The function of each softkey is described below:

• Cal Interval: Sets the calibration cycle to 24 hours, 90 days, 180 days, or 1 year.

• Spec Confidence: Sets the calibration specification confidence level to 95% or 99%.

All specifications are provided in Chapter 1 of this manual.

4-8

4-11. Setting the Internal Clock/Calendar

An internal clock/calendar provides the date (corrected for leap years) and time to the

calibrator’s CPU (Central Processing Unit). The clock setting should be checked and set
if necessary.

Note

A long-life lithium battery keeps the clock/calendar running during power­off periods. If the battery in your calibrator should ever need replacement,
refer to the Service Manual. The battery is a button-type, soldered to the
CPU Assembly (A20). Any procedure that involves removing the cover is
for service personnel only.

To set or change the time and date of the internal clock/calendar, proceed as follows:

1. If you want to set the date or both date and time, set the rear panel CALIBRATION
switch to ENABLE (see Figure 3-2). The setting of the CALIBRATION switch does
not matter for setting time only.

2. Press the following sequence of softkeys:
Setup Menus → Instmt Setup → Set Intrnl Clock

Front Panel Operation

The Setup Menu

4

(If the Setup Menu is not displayed, press r first).
The display changes to:

PREV

MENU

3. To change the date, press the “Change Date” softkey. (To leave the date setting as is
and change the time instead, skip to step 5.) The display changes to:

PREV

MENU

4. Enter the date as six digits using the numeric keypad. The date format selected in the
Special Functns menu determines the order in which you enter the digits (mmddyy,
ddmmyy, or yymmdd). For example, in the format mmddyy, September 5, 1996 is
entered as 090596.

4-9

5700A/5720A Series II

Operators Manual

5. Press the “Change Time” softkey. The display changes to:

6. Enter the 24-hour time as six digits in the format hhmmss using the numeric keypad

7. Make sure the rear panel CALIBRATION switch to NORMAL.

8. Press P three times to return to normal operation.

4-12. Selecting Amplifiers

If you plan to use an auxiliary amplifier other than the 5725A, you may identify one
amplifier for current boost and one amplifier for voltage boost. Model 5725A is the
factory default for both voltage and current boost. To select other amplifiers, proceed as
follows:

PREV

MENU

(for example, 080500 for 8:05 am, or 130400 for 1:04 pm). Press E to start
the clock at its new setting.

1. Press the following sequence of softkeys:
Setup Menus → Instmt Setup → Boost Amp Types
(If the Setup Menu is not displayed, press r first).
The display changes to:

PREV

MENU

2. Press a softkey under “Voltage:” to scroll the highlighted label until it displays
5725A.

3. Press a softkey under “Current:” to scroll the highlighted label until it displays
5725A.

4. To go to normal operation, press P three times.

4-10

4-13. Checking the Instrument Configuration

The softkey labeled “Instmt Config” in the setup menu gives you access to the following
information:

• Installed internal operating software revision letters.

• Whether the Wideband AC Module (Option 5700A-03) is installed.

• Which auxiliary amplifiers are attached, if any.

• The contents of the user report string (a general-purpose data storage location that is

changeable only in remote control using the RPT_STR command). You can use this
register to store a property identification name or number, verification test record
number, or other message. The message appears on calibration report printouts as
described in Chapter 6. The rear panel CALIBRATION switch must be in the
ENABLE position to change the user report string. Refer to Chapter 5 for how to use
the RPT_STR remote command.

To view this information, proceed as follows:

1. Press the “Setup Menus” softkey, then press the “Instmt Config” softkey. The
display changes to:

(If the Setup Menu is not displayed, press r first.)

Front Panel Operation

The Setup Menu

4

The following display appears:

PREV

MENU

2. Press either softkey under “Show installed s/w and h/w.” The display now shows the
installed internal operating software revisions. To view the installed and attached
hardware assemblies, press the “Go to h/w config” softkey.

3. After you have read the display, press the “MORE” softkey. If there are any more
assemblies to display, they are displayed. After there are no more assemblies to
display, the “h/w config” softkey returns control to the menu shown in step 1.

4. To return to normal operation, press P twice.

To display the contents of the user report string, proceed as follows:

1. Press the “Setup Menus” softkey, then press the “Instmt Config” softkey.

(If “Setup Menus” is not on the display, press r first.)

2. Press a softkey under the “Show user report string” label. This prints the user report
string on the Control Display. To clear the display, press P.

3. To go to normal operation, press P twice.

4-11

5700A/5720A Series II

Operators Manual

4-14. Special Functions Menu.

The softkey labeled “Special Functns” in the setup menu provides access to the AC Xfer
Choice and the Date Format feature, which lets you select one of three date formats
(m/d/y, d.m.y, and ymd). In remote, use DATEFMT to set the date format and
DATEFMT? to query the date format. The AC Xfer Choice feature activates another
softkey that lets you turn off the monitoring system that makes adjustments for load
changes. The AC Xfer OFF feature is available only in the ranges below 220V, at
frequencies below 120 kHz.

The AC Xfer OFF function remains active until the calibrator is reset or the power is
turned off. For remote control applications, the same feature is accessible through the
remote command XFER OFF. Send the command XFER ON to restore internal ac
transfers to normal operation.

Turn off internal ac transfers as follows:

1. Press the “Setup Menu” softkey.

2. Press the “Special Functns” softkey.

3. Press the “AC Xfer Choice” softkey so that ON appears. This turns on an “Intrnl
Xfers” softkey in the ac voltage function.

4. Press P twice.

5. After setting the output for an ac voltage, press the “Intrnl Xfers” softkey so that
OFF appears. This will inhibit internal transfers from being made after the output
has settled. It is particularly useful for making ppm level measurements at low
frequencies. Changing the calibrator's output will reinitiate transfers until the output
has settled.

4-15. Resetting the Calibrator.

At any time during front panel operation, you can return the calibrator to the power-up
state by pressing r. Pressing r does the following:

• Returns the calibrator to the power-up state: 0 mV dc, standby, internal guard, and
internal sense.

• Clears the stored values for limits, offset, scale, and error mode reference.

4-12

4-16. Operate and Standby Modes

When the OPERATE annunciator is lit, the output value and function shown on the
Output Display are active at the selected terminals. When the STANDBY annunciator on
the Output Display is lit, all calibrator binding posts except GROUND are open­circuited. To toggle between operate and standby modes, press O.

If any of the following events occur during operation, the calibrator automatically
switches to standby mode:

• The r key is pressed.

• A voltage ≥22V is selected when the previous output voltage was less than 22V.

• The output location is changed, for example by selecting an amplifier. The exception

is when the 5725A is selected for ac voltage or current, provided the calibrator’s
current output location is set to “5725A.”

• The output function is changed from any of the following: a voltage much less than
22V, an ac voltage much greater than 22V, a dc voltage much greater than 22V, a dc
current, an ac current, or a resistance. The exception is when the calibrator is in
5100B mode when switching between dc and ac current. In this case the calibrator
will not switch to standby mode.

Front Panel Operation

Operate and Standby Modes

4

4-17. Connecting the Calibrator to a UUT

WWarning

The calibrator is capable of supplying l et hal voltages. Do not
make connections to the output terminals w hen any voltage is
present. Placing the instrument in st andby may not be enough
to avoid shock hazard, since the O key could be pressed
accidentally. Press reset and verify that standby is lit before
making connections to the output terminal s.

The binding posts labeled OUTPUT (HI, LO, and AUX I) deliver voltage, fixed
resistance, and current to the UUT (Unit Under Test). The Type “N” connector on the
front panel labeled WIDEBAND delivers the output signal from the Option 5700A-03
Wideband AC Module.

Depending on the output function, output amplitude, and input configuration of the UUT
(Unit Under Test) or meter, connection to the SENSE binding posts, the GUARD
binding post, and the GROUND binding post may also be required or recommended. The
text in this chapter explains how and when to use these binding posts.

4-18. Recommended Cable and Connector Types

Cables can be connected to the binding posts using banana jacks, terminal lugs, or
stripped insulated wire. To avoid errors induced by thermal voltages (thermal emfs), use
connectors and conductors made of copper or materials that generate small thermal emfs
when joined to copper. Avoid using nickel-plated connectors. Optimum results can be
obtained by using Fluke Model 5440A-7002 or 5440A-7003 Low Thermal EMF Test
Leads.

Cable requirements depend on the output function, amplitude, and frequency. Table 4-1
gives specific cable recommendations for all applications.

4-13

5700A/5720A Series II

Operators Manual

Output Function Cable Recommendations

Caution

Use only cables with correct voltage ratings.

Table 4-1. Auxiliary Amplifier Data

DC voltage
AC voltage ≤10 kHz
AC current ≤2A, ≤10 kHz
DC current ≤2A
Resistance
AC voltage >10 kHz SENSE/GUARD: Triaxial cable or Twinax (e.g.,

AC current with guard Triaxial cable
Wideband AC 6-foot (2 m) 50Ω coaxial cable with type “N” male

Voltage-boosted output, 5725A Low Thermal EMF Test Leads [Note 1]

Current-boosted output, 5725A 16-gauge or heavier twisted pair insulated wire, as

Low Thermal EMF Test Leads [Note 1]
5440A-7002 (banana plugs) or
5440A-7003 (spade lugs)

(If external sensing is required, use a twisted
shielded pair.)

Alpha 2829/2), OUTPUT: Coaxial
Or: SENSE: Coaxial, OUTPUT: Coaxial

GUARD Lead: Separate wire

connector supplied with the option. A 50Ω
feedthrough terminator is also supplied for
connecting to meters with an impedance >50Ω.

5440A-7002 (banana plugs) or
5440A-7003 (spade lugs)

(Output is at the calibrator’s front panel.)

short as possible to minimize resistance and
inductance. (Output is at the amplifier terminals.)

4-14

1. Spade lugs provide a slightly better thermal EMF performance. However, some UUTs have repressed
banana connectors that cannot accommodate spade lugs.

4-19. When to Use External Sensing

External sensing is normally required only when you are calibrating a device that draws
enough current to produce a significant voltage drop in the cables. An example of such a
case is using the calibrator as an external dc voltage reference for an AC/DC transfer
standard. In this example, the calibrator is sourcing 1V dc into a Fluke 540B AC/DC
Transfer Standard. The 180Ω input impedance results in a current flow of approximately
5 mA. The calibrator’s 90-day uncertainty at 1V is specified to be ±(6 ppm + 1.2 uV) or

± 7.2 µV. Cumulative lead and contact resistances of as little as 2 mΩ would cause a
voltage drop greater than the total uncertainty of the calibrator. External sensing
eliminates this error.

The normal power-up state of the calibrator is external sensing off, with an internal
connection between the SENSE and OUTPUT automatically made. This is the state
achieved by pressing X so that the indicator is off.

4-20. When to Use the External Voltage Guard

The voltage guard protects the analog circuitry by placing an electrical shield between
the primary and secondary of the ac line power transformer. An optical cable transmits

control information from the calibrator’s microprocessor to analog circuits. The voltage
guard provides a low-impedance path for common-mode noise and ground loop currents.

The voltage guard is usually internally connected to the OUTPUT LO terminal. This is
the normal power-up state of the calibrator, and the connection is automatically made
when the external guard is not selected (x pressed so that the indicator is off).

If you are calibrating a UUT with a grounded low or common input terminal, you need
an external connection to the V GUARD. The calibrator's voltage guard must be
grounded at the UUT. (To avoid ground loops you must have only one ground
connection in the system, so all ground connections should be made at the UUT. To
maintain one ground point, make sure there is no grounding strap connected to the
calibrator.)

4-21. When to Use the Current Guard

The rear panel CURRENT GUARD is required when the calibrator is supplying low­level ac current through a long cable, such as in a system. For that reason, a current
guard terminal is supplied on the rear panel where it is convenient for system
applications.

Front Panel Operation

Connecting the Calibrator to a UUT

4

The current guard is active only when the calibrator is in the ac current function. The
guard is voltage driven and is in phase with the calibrator’s output current to the level of
compliance voltage at the OUTPUT HI terminal. Compliance voltage is the sum of the
UUT burden voltage and the additional burdens of contact resistances and cable losses.
When connected to the inner shield of a triaxial cable, the current guard blocks a
potentially significant leakage path by surrounding the output current with an in-phase
voltage at the same potential. Current leakage still occurs, but only between the guard
voltage on the inner cable shield and the grounded outer cable shield.

An example where current guarding is desirable is when you are sourcing 100 uA at
1 kHz through a 3-meter coaxial cable into a UUT with a burden voltage of 1V. At
100 pF per meter of length, the cable places an additional 300 pF load across the
calibrator’s output. The amount of current leakage through the cable capacitance is:

I= V(2πfC)

Where,

V = 1V

3

f = 1 kHz = 1 x 10
C = 300 pF = 300 x 10

Hz

-12

F

So the total leakage is:

I = (1)(2)(π)(10

3

)(300)(10

-12

) = 1.9 µA

This will add in quadrature to the current through a resistive load causing an error of:

22

100 19

+ . −100 = 0.018 µA

At 100 µA, the calibrator’s 90-day uncertainty is specified to be ±140 ppm + 20 nA, or
±0.034 µA. The current leakage here is over half the calibrator’s uncertainty. The error
caused by this leakage can be minimized by using the current guard.

4-15

5700A/5720A Series II

Operators Manual

4-22. Four-Wire Vs. Two-Wire Resistance Connections

Figure 4-4 shows four different ways to connect to a UUT for resistance calibration.
Figure 4-4A shows a UUT with four-wire sensing. For such meters, you should always
take advantage of the four-wire sensing capability and use external sensing to achieve
the highest accuracy. (Four-wire sensing is available for all resistance values except
100 MΩ.)

For calibrating a meter with only a two-wire resistance mode such as a typical handheld
DMM, refer to Figures 4-4B through 4-4D. For resistances of 19 kΩ or lower in two­wire mode, compensation circuitry inside the calibrator is available to remove errors
introduced by resistance in the path between the front panel terminals and the precision
resistor. Depending on how you connect the meter, you can use two-wire compensation
referenced at the UUT terminals (Figure 4-4C) or at the ends of the UUT’s test leads

(Figure 4-4D). See “Resistance Output” for information on turning on and off two-wire
compensation circuitry.

Figure 4-4B shows a meter connected in a two-wire connection with the two-wire
compensation circuitry turned off. For low resistances where uncompensated lead
resistances are significant, use the two-wire compensation circuit and the connection in
Figure 4-4C or 4-4D. Use the connection in Figure 4-4C if you want to calibrate the
meter referenced at its terminals. Use the connection in Figure 4-4D if you want to
calibrate the meter referenced at the end of its test leads.

4-23. Cable Connection Instructions

To connect the calibrator to a UUT, proceed as follows:

1. If the calibrator is turned on, press r, or 0 V E. Either action sets

the calibrator to 0 mV in standby.

2. Determine the appropriate figure from Table 4-2, and refer to the preceding text and
Table 4-1 to make appropriate connections to the UUT.

Table 4-2. UUT Connection Figures

5700A/5720A Series II Output Figure

DC Voltage (including 5725A boost 4-1
AC voltage ≤10 kHz 4-1
AC voltage >10 kHz 4-2
AC current ≤2A, ≤10 kHz 4-3
Resistance 4-4
Wideband AC voltage (option 5700A-03) 4-5
5725A amplified output (current only) 4-6

4-16

Front Panel Operation

Connecting the Calibrator to a UUT

4

DC

HI

LO

A

INPUT

UUT

UUT

INPUT

SENSE

4-WIRE

Ω

GUARD

AC

HI

LO

A.

EX SNS

B.

EX SNS

SHIELDED TWISTED PAIR

: OFF

: ON

EX GRD

EX SNS

: OFF

: ON

OUTPUT

V A

HI

LO

HI

AUX

CURRENT

OUTPUT

V A

HI

LO

CALIBRATOR

SENSE

Ω

V

Ω

GUARD GROUND

CALIBRATOR

SENSE

Ω

V

Ω

WIDEBAND

HI

LO

WIDEBAND

HI

LO

UUT

HI

AUX

: ON

CURRENT

CALIBRATOR

OUTPUT

V A

Ω

HI

LO

HI

AUX

CURRENT

SHIELDED TWISTED PAIR

C.

LOHI

EX SNS

: OFF

EX GRD

Figure 4-1. UUT Connections: DC Voltage, AC Voltage ≤10 kHz

GUARD GROUND

SENSE

V

Ω

WIDEBAND

HI

LO

GUARD GROUND

4-17

5700A/5720A Series II

Operators Manual

A.

EX SNS

: ON

EX GRD

: OFF

HI

LO

B.

HI

LO

INPUT

A

INPUT

UUT

UUT

4-WIRE

Ω

SENSE

4-WIRE

Ω

GUARD

SENSE

HI

LO

HI

LO

TRIAXIAL CABLE

TRIAXIAL CABLE

EX SNS

TRIAXIAL CABLE

: OFF

EX GRD

: OFF

CALIBRATOR

OUTPUT

V A

Ω

HI

LO

HI

AUX

CURRENT

CALIBRATOR

OUTPUT

V A

Ω

HI

LO

SENSE

V

Ω

WIDEBAND

HI

LO

V-GUARD GROUND

SENSE

Ω

V

WIDEBAND

HI

LO

A

GUARD

HI

AUX

CURRENT

V-GUARD GROUND

NOTE

Keep the SENSE leads as short as possible.

Be careful not to exceed the capacitive load limit of 1000 pF up to 220V,
600 pF 220 to 1100V. (1000 pF with 5725A Amplifier.)

Figure 4-2. UUT Connections: AC Voltage >10 kHz

4-18

Front Panel Operation

Connecting the Calibrator to a UUT

4

HI

LO

A

HI

A.

INPUT

B.

INPUT

UUT

4-WIRE

Ω

UUT

4-WIRE

Ω

SENSE

GUARD

SENSE

HI

LO

HI

EX SNS

EX SNS

TRIAXIAL CABLE

: OFF

: OFF

EX GRD

EX GRD

: OFF

: OFF

OUTPUT

V A

Ω

HI

LO

HI

AUX

CURRENT

OUTPUT

V A

HI

CALIBRATOR

(FRONT)

SENSE

V

Ω

GUARD GROUND

CALIBRATOR

(REAR)

SENSE

Ω

V

Ω

WIDEBAND

HI

LO

HI

LO

LO

A

GUARD

The AUX CURRENT OUTPUT binding post is shown in use in figure 4-3A.
You can use the OUTPUT HI binding post or the 5725A Boost Amplifier
binding posts as the active terminals for current output. The operating
instructions in the text describe how you select the active terminal.
If you do not select current output location, OUTPUT HI is active.

Figure 4-3. UUT Connections: AC Current ≤2A

NC

NOTE

LO

I-GUARD

LO

V-GUARD

4-19

5700A/5720A Series II

Operators Manual

A.

HI

LO

A

UUT

INPUT

UUT

SENSE

4-WIRE

Ω

GUARD

CALIBRATOR

OUTPUT

SENSE

V A

HI

LO

SENSE

SOURCE

HI

LO

HI

AUX

CURRENT

Ω

V

Ω

WIDEBAND

HI

LO

GUARD GROUND

: ON

EX SNS

: OFF

EX GRD

CALIBRATOR

SOURCE

SENSE

2-WIRE

COMP

OFF

B.

10A

300mA

UUT

UUT

V

COM

CALIBRATOR

OUTPUT

HI

LO

HI

Ω

NC

AUX

CURRENT

Ω

V A

SENSE

V

Ω

WIDEBAND

HI

LO

GUARD GROUND

EX SNS

EX GRD

: OFF

: OFF

CALIBRATOR

2-WIRE

COMP

OFF

4-20

Figure 4-4. UUT Connections: Resistance

C.

UUT

Front Panel Operation

Connecting the Calibrator to a UUT

CALIBRATOR

4

V

Ω

10A

COM

300mA

CAUTION

USE CONNECTIONS WITH
EXPOSED PLUG TIPS FOR

THE OHMS FUNCTION ONLY.

UUT

D.

UUT

OUTPUT

V A

HI

LO

HI

AUX

CURRENT

NC

NC

COMP

CALIBRATOR

Ω

SENSE

V

Ω

WIDEBAND

HI

LO

GUARD GROUND

EX SNS

EX GRD

2-WIRE

COMP

ON

: ON

: OFF

COMP

CALIBRATOR

10A

300mA COM

UUT

OUTPUT

V A

HI

LO

HI

VΩ

NC

AUX

CURRENT

COMP

CALIBRATOR

COMP

Figure 4-4. UUT Connections: Resistance (Continued)

Ω

SENSE

V

Ω

WIDEBAND

HI

LO

GUARD GROUND

EX SNS

EX GRD

2-WIRE

COMP

ON

: OFF

: OFF

4-21

5700A/5720A Series II

Operators Manual

50 FEEDTHROUGH TERMINATOR

Ω

SUPPLIED WITH OPTION 5700A-03

CABLE SUPPLIED WITH

OPTION 5700A-03

For wideband meters with higher than 50 input impedence, use

Ω

the 50 feedthrough terminator at the meter connection end.
For all wideband applications, take care to achieve a good 50
impedence match (use cable and connectors with a characteristic input

impedence of 50 ).

Ω

NOTE

CALIBRATOR

HI

LO

HI

CURRENT

OUTPUT

V A

AUX

SENSE

Ω

V

Ω

WIDEBAND

HI

LO

GUARD GROUND

Ω

Ω

Figure 4-5. UUT Wideband AC Voltage Output (Option 5700A-03)

4-24. Setting the Output

To set the output, simply press the following sequence of keys to select an output
function and amplitude:

[numeric keys]
For example, to set the output to 10 mV dc, press:
1 0 m V EO

To set an ac output, press the following additional keys:
[numeric keys]
For example, to change the present 10 mV dc to 10 mV ac at 1.8 kHz, press:
1 . 8 K H E

To change the output back to dc, simply press:

0 H E, or
+ E

→ [multiplier] → [function] → E → P

→ [multiplier] → H → E

4-22