Fluke 5725A User Manual

5725A

®

Amplifier

Instruction Manual

PN 823435
January 1989
Rev. 6, 6/96

© 1993, 1996 Fluke Corporation, All rights reserved. Printed in U.S.A.
All product names are trademarks of their respective companies.

Table of Contents

Chapter Title Page

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

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

1-2. Where to Go From Here....................................................................... 1-4

1-3. How to Use the Manuals...................................................................... 1-5

1-4. 5725A Instruction Manual............................................................... 1-5

1-5. 5700A Operator Manual .................................................................. 1-5

1-6. 5700A Operator Reference Guide ................................................... 1-5

1-7. 5700A Remote Programming Reference Guide............................... 1-5

1-8. 5700A Service Manual..................................................................... 1-6

1-9. Specifications....................................................................................... 1-6

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

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

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

2-3. Service Information.............................................................................. 2-5

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

2-5. Cooling Considerations........................................................................ 2-5

2-6. Connecting to the 5700A Calibrator .................................................... 2-6

2-7. Selecting Line Voltage......................................................................... 2-7

2-8. Accessing the Fuse............................................................................... 2-8

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

3 Operating Notes................................................................................. 3-1

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

3-2. Front Panel Features............................................................................. 3-4

3-3. Rear Panel Features.............................................................................. 3-6

3-4. Turning on the 5725A Amplifier.......................................................... 3-8

3-5. Warm Up.............................................................................................. 3-8

3-6. 5725A Operating Functions and Modes............................................... 3-9

3-7. Standby............................................................................................. 3-9

3-8 Voltage Standby............................................................................... 3-10

3-9. Current Standby ............................................................................... 3-11

3-10. Voltage Operate ............................................................................... 3-12

3-11. Current Operate................................................................................ 3-13

3-12. Conditions That Activate the 5725A.................................................... 3-14

i

5725A

Instruction Manual

4 Theory of Operation........................................................................... 4-1

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

4-2. Overall Functional Description............................................................ 4-3

4-3. 1100V AC Range Functional Description....................................... 4-5

4-4. 11A Range Functional Description.................................................. 4-6

4-5. Operation in the 11A DC Range.................................................. 4-7

4-6. Operation in the 11A AC Range.................................................. 4-7

4-7. Voltage and Current Standby Modes............................................... 4-7

4-8. Voltage Standby........................................................................... 4-7

4-9. Current Standby........................................................................... 4-7

4-10. How the 5700A and 5725A Communicate...................................... 4-8

4-11. Description of the Out-Guard Lines (5725A Side) ..................... 4-8

4-12. Description of the In-Guard Lines............................................... 4-9

4-13. Functional Summaries by Assembly................................................ 4-10

4-14. Detailed Circuit Description ................................................................ 4-11

4-15. Interconnect Assembly (A1)............................................................ 4-11

4-16. Power Supply Assembly (A4).......................................................... 4-12

4-17. High Voltage Supply Section...................................................... 4-13

4-18. Switching Section........................................................................ 4-14

4-19. Current-Limit Section.................................................................. 4-15

4-20. System Supply Section................................................................ 4-15

4-21. Fan Supply Section...................................................................... 4-16

4-22. Digital Assembly (A5)..................................................................... 4-16

4-23. Microcomputer ............................................................................ 4-16

4-24. External RAM.............................................................................. 4-16

4-25. External ROM.............................................................................. 4-16

4-26. EEROM ....................................................................................... 4-18

4-27. Data Latch.................................................................................... 4-18

4-28. Strobe Lines................................................................................. 4-18

4-29. Led Driver.................................................................................... 4-18

4-30. Optoisolator Link......................................................................... 4-18

4-31. Break-Detect Circuitry................................................................. 4-19

4-32. Power Up and Reset Circuitry..................................................... 4-19

4-33. Watchdog Timer.......................................................................... 4-19

4-34. Current Amplifier Assembly (A2)................................................... 4-19

4-35. Error Amplifier Section............................................................... 4-21

4-36. Output Stage Section................................................................... 4-22

4-37. Monitor Section........................................................................... 4-22

4-38. Control and Switching Section.................................................... 4-23

4-39. Power Supply Section.................................................................. 4-23

4-40. High Voltage Amplifier (A3)........................................................... 4-24

4-41. Input Amplifier............................................................................ 4-24

4-42. Integrator...................................................................................... 4-26

4-43. Window Comparator ................................................................... 4-26

4-44. Input Clamp................................................................................. 4-26

4-45. Transconductance and Cascode Stage......................................... 4-27

4-46. Midstage ...................................................................................... 4-27

4-47. Midstage -400V Filter ................................................................. 4-27

4-48. High Voltage Heat Sink Assemblies ........................................... 4-27

4-49. Autobias Current Source ............................................................. 4-28

4-50. Autobias Sense Circuit ................................................................ 4-28

4-51. High Voltage Amplifier Feedback............................................... 4-29

4-52. Signal Transformers .................................................................... 4-29

4-53. Temperature Monitoring.............................................................. 4-29

ii

Contents

4-54. High Voltage Sense Assembly (A6)................................................ 4-30

4-55. Sense Amplifier Section.............................................................. 4-32

4-56. Analog Monitor Section .............................................................. 4-34

4-57. Serial Interface/Guard Crossing Section..................................... 4-35

4-58. Analog Input Switching Section.................................................. 4-35

4-59. Control Section............................................................................ 4-36

4-60. AC Line Voltage Selection Section............................................. 4-37

5 Calibration and Verification .............................................................. 5-1

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

5-2. Where to Find Further Information...................................................... 5-3

6 Maintenance....................................................................................... 6-1

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

6-2. Replacing the Fuse ............................................................................... 6-3

6-3. Cleaning the Air Filter.......................................................................... 6-4

6-4. General Cleaning.................................................................................. 6-5

6-5. Cleaning PCA’s..................................................................................... 6-5

6-6. Access Procedures................................................................................ 6-6

6-7. Initial Access Procedure .................................................................. 6-7

6-8. Accessing the Power Supply Assembly (A4).................................. 6-9

6-9. Accessing the Digital Assembly (A5).............................................. 6-9

6-10. Accessing the Current Amplifier Assembly (A2)............................ 6-11

6-11. Accessing the High Voltage Amplifier (A3) ................................... 6-12

6-12. Accessing the High Voltage Sense Assembly (A6)......................... 6-13

6-13. Accessing the High Voltage Output Transistors.............................. 6-14

6-14. Accessing the Interconnect Assembly (A1)..................................... 6-14

6-15. Enabling Front or Rear Binding Posts.................................................. 6-15

(continued)

7 Troubleshooting................................................................................. 7-1

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

7-2. 5725A Fault Codes............................................................................... 7-3

7-3. Self Diagnostics.................................................................................... 7-3

7-4. Manual Tests for Fault Isolation.......................................................... 7-6

7-5. Problems 1 or 2: Fault at Power-Up or When Entering

Voltage Standby............................................................................... 7-7

7-6. Problem 3: Fault When Entering Voltage Operate.......................... 7-8

7-7. Problem 4: Fault When Entering Current Standby.......................... 7-8

7-8. Problem 5: Fault When Entering Current Operate .......................... 7-8

7-9. Reduced-Voltage Troubleshooting Mode............................................ 7-8

7-10. Testing the Power Supply By Itself...................................................... 7-9

8 List of Replaceable Parts .................................................................. 8-1

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

8-2. How to Obtain Parts............................................................................. 8-3

8-3 Manual Status Information................................................................... 8-3

8-4. Newer Instruments................................................................................ 8-3

8-5. Service Centers..................................................................................... 8-4

9 Schematic Diagrams.......................................................................... 9-1

Index

iii

5725A

Instruction Manual

iv

List of Tables

Table Title Page

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

2-2. Line Power Cord Types Available from Fluke...................................................... 2-4

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

3-2. Rear Panel Features............................................................................................... 3-7

4-1. Internal Fuse Data.................................................................................................. 4-13

4-2. Signal Transformer Usage..................................................................................... 4-29

4-3. High-Quality Reference Name Destination........................................................... 4-33

4-4. Signals Monitored by the Analog Monitor Section............................................... 4-34

7-1. 5725A Fault Codes................................................................................................ 7-4

7-2. Analog Monitor Faults........................................................................................... 7-7

8-1. Final Assembly...................................................................................................... 8-4

8-2. A1 Interconnect PCA............................................................................................. 8-14

8-3. A2 Current Amplifier PCA.................................................................................... 8-16

8-4. A3 High Voltage Amplifier PCA .......................................................................... 8-20

8-5. A4 Power Supply PCA.......................................................................................... 8-24

8-6. A5 Digital PCA...................................................................................................... 8-28

8-7. A6 High Voltage Sense PCA................................................................................. 8-30

8-8. A12 Transformer Enclosure Assembly.................................................................. 8-34

8-9. A30 Inductor PCA................................................................................................. 8-39

v

5725A

Instruction Manual

vi

List of Figures

Figure Title Page

2-1. Line Power Cords Available for Fluke Instruments.............................................. 2-4

2-2. Correct Way to Dress Interface Cable................................................................... 2-6

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

2-4. Accessing the Fuse ................................................................................................ 2-8

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

3-2. Rear Panel Features............................................................................................... 3-6

4-1. 5725A Overall Block Diagram.............................................................................. 4-4

4-2. Digital Assembly Block Diagram.......................................................................... 4-17

4-3. Current Amplifier Assembly Block Diagram........................................................ 4-20

4-4. High Voltage Amplifier Assembly Block Diagram............................................... 4-25

4-5. High Voltage Sense Assembly Block Diagram..................................................... 4-31

6-1. Accessing the Fuse ................................................................................................ 6-4

6-2. Accessing the Air Filter......................................................................................... 6-5

6-3. Assembly Location Diagram................................................................................. 6-6

6-4. Initial Access Procedure........................................................................................ 6-8

6-5. Accessing the Digital Assembly............................................................................ 6-10

6-6. Correct Way to Dress Cables................................................................................. 6-12

6-7. Enabling Front or Rear Binding Posts................................................................... 6-16

8-1. Final Assembly...................................................................................................... 8-6

8-2. A1 Interconnect PCA............................................................................................. 8-15

8-3. A2 Current Amplifier PCA.................................................................................... 8-19

8-4. A3 High Voltage Amplifier PCA .......................................................................... 8-23

8-5. A4 Power Supply PCA.......................................................................................... 8-27

8-6. A5 Digital PCA...................................................................................................... 8-29

8-7. A6 High Voltage Sense PCA................................................................................. 8-33

8-8. A12 Transformer Enclosure Assembly.................................................................. 8-35

8-9. A30 Inductor PCA................................................................................................. 8-40

9-7. A12 Transformer Enclosure Assembly.................................................................. 9-3

vii

5725A

Instruction Manual

viii

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 of Part 15 of FCC Rules, which are designed to
provide reasonable protection against such interference in a residential installation.

Operation is subject to the following two conditions:

This device may not cause harmful interference.

•

This device must accept any interference received, including interference that may cause

•

undesired operation.

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.

Declaration of the Manufacturer or Importer

We hereby certify that the Fluke Model 5725A Amplifier is in compliance with BMPT Vfg 243/1991
and is RFI suppressed. The normal operation of some equipment (e.g. signal generators) may be
subject to specific restrictions. Please observe the notices in the users manual. The marketing and
sales of the equipment was reported to the Central Office for Telecommunication Permits (BZT).
The right to retest this equipment to verify compliance with the regulation was given to the BZT.

Bescheinigung des Herstellers/Importeurs

Hiermit wird bescheinigt, daβ Fluke Models 5725A Amplifier in Übereinstimung mit den
Bestimmungen der BMPT-AmtsblVfg 243/1991 funk-entstört ist. Der vorschriftsmäßige Betrieb
mancher Geräte (z.B. Meßsender) kann allerdings gewissen Einschränkungen unterliegen.
Beachten Sie deshalb die Hinweise in der Bedienungsanleitung. Dem Bundesamt für Zulassungen
in der Telekcommunikation wurde das Inverkehrbringen dieses Gerätes angezeigt und die
Berechtigung zur Überprüfung der Seire auf Einhaltung der Bestimmungen eingeräumt.

Fluke Corporation

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 IEC Publication 348,
Safety Requirements for Electronic Measuring Apparatus. 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

Power Source

The 5725A is 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 5725A

l.

The 5725A is 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 5725A or 5700A 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 5725A in
your country.

Use only a power cord that is in good condition.
Refer cord and connector changes to qualified service personnel.

Do Not Operate in Explosive Atmospheres

To avoid explosion, do not operate the 5725A in an atmosphere of explosive gas.

Do Not Remove Cover

To avoid personal injury or death, do not remove the 5725A cover. Do not operate the
5725A without the cover properly installed. There are no user-serviceable parts inside
the 5725A, so there is no need for the operator to ever remove the cover.

Do Not Attempt to Operate if Protection May be Impaired

If the 5725A appears damaged or operates abnormally, protection may be impaired. Do
not attempt to operate it. When is doubt, have the instrument serviced.

SERVICING SAFETY

SUMMANY

FOR QUALIFIED SERVICE

PERSONNEL ONLY

Also refer to the preceding Operator Safety Summary

Do Not Service Alone

Do not perform internal service or adjustment of this product unless another person
capable of rendering first aid and resuscitation is present.

Use Care When Servicing With Power On

Dangerous voltage exist at many points inside this product. To avoid personal injury, do
not touch exposed connections and components while power is on.

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

Do not wear a grounded wrist strap while working on this product. A grounded wrist strap
increase the risk of current flowing through the body.

Disconnect power before removing protective panels, soldering, or replacing components.

High voltage may still be present even after disconnecting power.

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.

If the circuit cannot be broken or grounded, use a board, dry clothing, or other
nonconductor to free the victim.

Get Help!

Yell 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.

Chapter 1

Introduction and Specifications

Title Page

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

1-2. Where to Go From Here....................................................................... 1-4

1-3. How to Use the Manuals...................................................................... 1-5

1-4. 5725A Instruction Manual............................................................... 1-5

1-5. 5700A Operator Manual .................................................................. 1-5

1-6. 5700A Operator Reference Guide ................................................... 1-5

1-7. 5700A Remote Programming Reference Guide............................... 1-5

1-8. 5700A Service Manual..................................................................... 1-6

1-9. Specifications....................................................................................... 1-6

1-1

5725A

Instruction Manual

1-2

Introduction and Specifications

Introduction

Introduction 1-1.

The Fluke 5725A Amplifier enhances the 5700A Calibrator in the ac voltage, ac current,
and dc current functions. The 5725A operates under complete control of the 5700A
through an interface cable supplied with the 5725A.

A diagram in the specifications tables at the end of this section illustrates the extended ac
volt-hertz product achieved by using a 5725A. Increased ac voltage load limits allow
using the 5700A Calibrator in systems with long cables.

Voltage output from the 5725A is available at the 5700A Calibrator front or rear binding
posts. This eliminates the need to move cables during a procedure that requires amplified
as well as standard calibrator outputs.

The 5725A front or rear panel OUTPUT binding posts are only for current output.
Extended-range ac and dc current is supplied through them. Since most meters with a
high current range use a separate high current input terminal, this configuration normally
eliminates the need to move cables during a procedure. If a single-point current output is
needed, the 5700A Calibrator can be configured to source all current outputs through the
5725A binding posts.

Enhancements to 5700A ac voltage output capability provided by the 5725A are as
follows:

1

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

• Load limits are to 70 mA for frequencies above 5 kHz, and to 50 mA for frequencies

less than 5 kHz.

• Capacitive load limits are increased to 1000 pF.
Model 5725A operating functions and ranges are as follows:

• AC voltage: 220 to 1100V rms up to 70 mA (50 mA < 5 kHz), 40 Hz to 30 kHz; 220

to 750V rms up to 70 mA, 30 kHz to 100 kHz

• DC current: 0 to ±11A

• AC current: 1 to 11A rms, 40 Hz to 10 kHz

1-3

5725A

Instruction Manual

Where to Go From Here 1-2.

This manual is the operator and service manual for the 5725A. However, because the
5725A operates under the control of the 5700A Calibrator, most operating instructions
for the 5725A are in the 5700A manuals. Topics such as selecting output values,
connecting to a UUT (Unit Under Test), and self calibration are covered in the 5700A
Operator Manual. The list below gives some specific pointers, and the text further on
describes how to use all the manuals to find 5725A information.

For More Information About: Refer To:

• Unpacking and setup Section 2 of this manual

• Installation and rack mounting Section 2 of this manual and the

Y5735/Y5737 Instruction Sheet

• AC line power and interface cabling Section 2 of this manual

• Controls, indicators, and binding

Section 3 of this manual

posts

• 5725A service information Sections 4 through 9 of this manual

• Operating the amplifier Section 3 of this manual and Section 4 of

the 5700A Operator Manual

• Cabling to a Unit Under Test Section 4 of the 5700A Operator Manual

• Self calibration Section 7 of the 5700A Operator Manual

• Full verification Section 3 of the 5700A Service Manual

• IEEE-488 or serial remote operation Section 5 of the 5700A Operator Manual

• 5700A/5725A specifications Section 1 of this manual

• Theory of operation Section 4 and 9 of this manual

• Troubleshooting Section 6 of this manual

• Ordering a part Section 8 of this manual

1-4

Introduction and Specifications

How to Use the Manuals

How to Use the Manuals 1-3.

The following paragraphs describe how each manual addresses the 5725A.

5725A Instruction Manual 1-4.

Use the 5725A Instruction Manual for installing the 5725A, learning about its front and
rear panel features, and for all service-related topics such as maintenance,
troubleshooting, parts lists, and schematics. (The 5725A Instruction Manual is the
service and operator manual for the 5725A.)

Although the instruction manual also contains a section devoted to 5725A operating
notes, once the 5725A is up and running you will find that the 5700A Operator Manual
contains most of the information you need to operate the 5725A.

5700A Operator Manual 1-5.

The 5700A Operator Manual contains the following information pertaining to the
5725A:

• Specifications for both the 5700A and 5725A (these same specifications are in this

Instruction Manual)

1

• Cable connections to a UUT for amplified voltage and current

• Front panel (local) operation

• Remote control operation, IEEE-488 or RS-232

• Self calibration

• Fault codes (these appear on the 5700A Control Display, or are read from the 5700A

in remote control operation)

• Calibration constant symbolic names

• Glossary of calibration-related terms

The 5700A Operator Manual comes with two pocket-sized booklets: one for front panel
operation and one for remote programming.

5700A Operator Reference Guide 1-6.

The 5700A Operator Reference Guide contains a summary of operating instructions
from the Operator Manual. This booklet contains information needed to start up and
operate the 5700A, but since the 5700A controls the 5725A, much of this information
applies to the 5725A. The booklet is included in the binder with the 5700A Operator
Manual.

5700A Remote Programming Reference Guide 1-7.

The 5700A Remote Programming Reference Guide contains a summary of remote
commands for the 5700A. It also contains information needed to determine system status
using the status byte and registers. Remote commands and system status apply to a
5725A under control of the 5700A. This booklet is also included in the binder with
5700A Operator Manual.

1-5

5725A

Instruction Manual

5700A Service Manual 1-8.

Specifications 1-9.

The 5700A Service Manual is a maintenance guide for the 5700A. The following 5725A
topics are included in the 5700A Service Manual:

• Specifications for both the 5700A and 5725A (these same specifications are in this

Instruction Manual)

• Full verification of the 5700A and 5725A (recommended every two years)

• Calibration of the 5700A and 5725A (same procedure as in the 5700A Operator

Manual)

Specifications are valid after allowing a warm-up period of 30 minutes, or if the 5725A
has been recently on, twice the time the 5725A has been turned off. For example, if the
5725A has been turned off for five minutes, the warm-up period is ten minutes.

Absolute uncertainty includes stability, temperature coefficient, linearity, line and load
regulation, and traceability to external standards. You do not need to add anything to
absolute uncertainty to determine the ratios between 5700A/5725A 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"
in the 5700A Operator Manual). To calculate absolute uncertainty, you must combine
the uncertainties of your external standards and techniques with relative uncertainty.

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

1-6

DC Voltage

Introduction and Specifications

Specifications

1

Range Resolution

Absolute Uncertainty

± 5°C from calibration temperature

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

Relative Uncertainty

± 1°C

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

220 mV 10 nV 6.5 + .75 7 + .75 8 + .75 9 + .8 2.5 + .5 4 + .5

2.2V 100 nV 3.5 + 1.2 6 + 1.2 7 + 1.2 8 + 1.2 2.5 + 1.2 4 + 1.2
11V 1 µV 3.5 + 3 5 + 4 7 + 4 8 + 4 1.5 + 3 3.5 + 4
22V 1 µV 3.5 + 6 5 + 8 7 + 8 8 + 8 1.5 + 6 3.5 + 8

220V 10 µV 5 + 100 6 + 100 8 + 100 9 + 100 2.5 + 100 4 + 100

1100V 100 µV 7 + 600 8 + 600 10 + 600 11 + 600 3 + 600 4.5 + 600

Secondary Performance Specifications and Operating Characteristics

Included in Uncertainty Specifications

Range

Stability

± 1°C

24 Hours

Temperature Coefficient

[Note]

0°-10°C

10°-40°C

and

Linearity

± 1°C

Bandwidth

0.1-10 Hz

Noise

Bandwidth

10-10 kHz

40°-50°C pk-pk RMS

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

220 mV

2.2V
11V
22V

220V

1100V

Note: Temperature coefficient is an adder to uncertainty specifications that does not apply unless operating more than ±5°C from calibration

temperature.

.3 + .3
.3 + 1
.3 + 2.5
.4 + 5
.5 + 40
.5 + 200

.4 + .1
.3 + .1

.15 + .2

.2 + .4

.3 + 5

.5 + 10

1.5 + .5

1.5 + 2
1 + 1.5

1.5 + 3

1.5 + 40
3 + 200

1 + .2
1 + .6
.3 + 2
.3 + 4

1 + 40

1 + 200

.15 + .1
.15 + .4

.15 + 2
.15 + 4

.15 + 60

.15 + 300

5
15
50
50

150
500

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

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

Load regulation: <0.2 ppm + 0.2 µV change, 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 1100V

range

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

1-7

5725A

Instruction Manual

AC Voltage

Range Resolution Frequency

2.2 mV 1 nV

22 mV 10 nV

220 mV 100 nV

2.2V 1 µV

22V 10 µV

220V 100 µV

1100V 11 mV 50-1k 75 + 4 80 + 4 85 + 4 90 + 4 50 + 4 55 + 4

5725A Amplifier:

1100V

750V

1 mV

Hz

10-20
20-40

40-20k

20k-50k

50k-100k
100k-300k
300k-500k

500k-1M

10-20
20-40

40-20k

20k-50k

50k-100k
100k-300k
300k-500k

500k-1M

10-20
20-40

40-20k

20k-50k

50k-100k
100k-300k
300k-500k

500k-1M

10-20
20-40

40-20k

20k-50k

50k-100k
100k-300k
300k-500k

500k-1M

10-20
20-40

40-20k

20k-50k

50k-100k
100k-300k
300k-500k

500k-1M

10-20
20-40

40-20k

20k-50k

50k-100k
100k-300k
300k-500k

500k-1M

40-1k

1k-20k

20k-30k
30k-50k

50k-100k

Absolute Uncertainty

5°C from calibration temperature

±

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

(ppm output + µV)

±

500 + 5
200 + 5
100 + 5
340 + 5

800 + 8
.11% + 15
.15% + 30

.4% + 40

500 + 6

200 + 6

100 + 6

340 + 6

800 + 8
.11% + 15
.15% + 30

.4% + 40
500 + 16

200 + 10

95 + 10

300 + 10
750 + 30
940 + 30

.15% + 40

.30% + 100

500 + 100

150 + 30

70 + 7
120 + 20
230 + 80

400 + 150

.10% + 400

.20% + 1 mV

500 + 1 mV

150 + 300

70 + 70
120 + 200
230 + 400

500 + 1.7 mV

.12% + 5 mV
.26% + 9 mV

(ppm output + mV)

±

500 + 10

150 + 3

75 + 1

200 + 4

500 + 10
.15% + 110
.50% + 110

1.20% + 220

75 + 4

105 + 6

230 + 11

230 + 11

600 + 45

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

900 + 8
.12% + 15
.17% + 30

.44% + 4

550 + 6

220 + 6

110 + 6

370 + 6

900 + 8
.12% + 15
.17% + 30

.44% + 4
550 + 16

220 + 10
100 + 10
330 + 10
800 + 30
.1% + 30

.17% + 40

.33% + 100

550 + 100

170 + 30

75 + 7
130 + 20
250 + 80

440 + 150

.11% + 400

.22% + 1 mV

550 + 1 mV

170 + 300

75 + 70
130 + 200
250 + 400

550 + 1.7 mV

.13% + 5 mV
.28% + 9 mV

550 + 10

170 + 3

80 + 1

220 + 4

550 + 10
.15% + 110
.52% + 110

1.25% + 220

80 + 4

125 + 6

360 + 11

360 + 11

.13% + 45

600 + 5
230 + 5
120 + 5
390 + 5

950 + 8
.13% + 15
.17% + 30
.47% + 40

600 + 6

230 + 6

120 + 6

390 + 6

950 + 8
.13% + 15
.17% + 30
.47% + 40

600 + 16
230 + 10
110 + 10
350 + 10

850 + 30
.11% + 30
.17% + 40

.35% + 100

600 + 100

170 + 30

80 + 7
140 + 20
270 + 80

470 + 150

.12% + 400

.23% + 1 mV

600 + 1 mV

170 + 300

80 + 70
140 + 200
270 + 400

550 + 1.7 mV

.13% + 5 mV
.29% + 9 mV

600 + 10

170 + 3

85 + 1

240 + 4

600 + 10
.16% + 110
.53% + 110

1.25% + 220

85 + 4

135 + 6

440 + 11

440 + 11

.16% + 45

600 + 5
240 + 5
120 + 5
410 + 5

950 + 8
.13% + 15
.18% + 30
.48% + 40

600 + 6

240 + 6

120 + 6

410 + 6

950 + 8
.13% + 15
.18% + 30
.48% + 40

600 + 16
240 + 10
110 + 10
360 + 10

900 + 30
.11% + 30
.18% + 40

.36% + 100

600 + 100

180 + 30

85 + 7
140 + 20
280 + 80

480 + 150

.12% + 400

.24% + 1 mV

600 + 1 mV

180 + 300

85 + 70
140 + 200
280 + 400

600 + 1.7 mV

.14% + 5 mV
.30% + 9 mV

600 + 10

180 + 3

90 + 1

250 + 4

600 + 10
.16% + 110
.54% + 110

1.30% + 220

90 + 4

165 + 6

600 + 11

600 + 11

.23% + 45

Relative Uncertainty

±

(ppm output + µV)

±

500 + 5
200 + 5

60 + 5
100 + 5
220 + 8

400 + 15

.10% + 30

.3% + 30

500 + 6
200 + 6

60 + 6
100 + 6
220 + 8

400 + 15

.10% + 30

.3% + 30
500 + 16

200 + 10

60 + 10

100 + 10
220 + 30
400 + 30
.1% + 40

.3% + 100
500 + 100

150 + 30

40 + 7

100 + 20

200 + 80
400 + 150
.1% + 400

.2% + 1 mV
500 + 1 mV

150 + 300

40 + 70
100 + 200
200 + 400

500 + 1.7 mV

.12% + 5 mV
.26% + 9 mV

(ppm output + mV)

±

500 + 10

150 + 3

45 + 1

100 + 1

300 + 10
.15% + 110
.50% + 110

1.20% + 220

50 + 4
85 + 6

160 + 11

160 + 11

380 + 45

1°C

550 + 5
220 + 5

65 + 5
110 + 5
240 + 8

440 + 15
.11% + 30
.33% + 30

550 + 6
220 + 6

65 + 6
110 + 6
240 + 8

440 + 15
.11% + 30
.33% + 30

550 + 16

220 + 10

65 + 10
110 + 10
240 + 30
440 + 30

.11% + 40

.33% + 100

550 + 100

170 + 30

45 + 7
110 + 20
220 + 80

440 + 150

.11% + 400

.22% + 1 mV

550 + 1 mV

170 + 300

45 + 70
110 + 200
220 + 400

550 + 1.7 mV

.13% + 5 mV
.28% + 9 mV

550 + 10

170 + 3

50 + 1

110 + 1

330 + 10
.15% + 100
.52% + 110

1.20% + 220

55 + 4

105 + 6

320 + 11

320 + 11

.12% + 45

1-8

Introduction and Specifications

AC Voltage (continued)
Secondary Performance Specifications and Operating Characteristics

Included in Uncertainty Specifications

Stability

Range Frequency ± 1°C

Hz ± µV ±µV/°C Ω± (% output + µV)

10-20
20-40

40-20k

2.2 mV

22 mV

220 mV

2.2V

22V

220V

1100V 50-1k 20 + .5 2 5 10 + 1 .07

20k-50k

50k-100k
100k-300k
300k-500k

500k-1M

10-20
20-40

40-20k

20k-50k

50k-100k
100k-300k
300k-500k

500k-1M

10-20
20-40

40-20k

20k-50k

50k-100k
100k-300k
300k-500k

500k-1M

10-20
20-40

40-20k

20k-50k

50k-100k
100k-300k
300k-500k

500k-1M

10-20
20-40

40-20k

20k-50k

50k-100k
100k-300k
300k-500k

500k-1M

10-20
20-40

40-20k

20k-50k

50k-100k
100k-300k
300k-500k

500k-1M

24 Hours

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

5
10
15

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

150 + 20

80 + 15

12 + 2
10 + 2
10 + 2

20 + 4
100 + 10
200 + 20

150 + 20

80 + 15

12 + 4

15 + 5

15 + 5

30 + 10

70 + 20
150 + 50
150 + 20

80 + 15

12 + 8
15 + 10
15 + 10
30 + 15

70 + 100
150 + 100
150 + 200

80 + 150

12 + 80
15 + 100
15 + 100
30 + 400

100 + 10 mV
200 + 20 mV

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

Temperature

Coefficient

10°-40°C

.05
.05
.05

.1
.2
.3
.4
.5
.2
.2
.2
.4
.5
.6

1
1

2 + 1
2 + 1

2 + 1
15 + 2
15 + 4
80 + 5
80 + 5
80 + 5

50 + 10

15 + 5

2 + 1
10 + 2
10 + 4

80 + 15

80 + 40
80 + 100
50 + 100

15 + 30

2 + 10
10 + 20
10 + 40

80 + 150
80 + 300
80 + 500

50 + 1 mV

15 +300

2 + 80

10 + 100
10 + 500
80 + 600
80 + 800

80 + 1 mV

0°-10°C

and

40°-50°C

.05
.05
.05

.1
.2
.3
.4
.5
.3
.3
.3
.5
.5
.6
1
1

2 + 1
2 + 1

2 + 1
15 + 2
15 + 4
80 + 5
80 + 5
80 + 5

50 + 10

15 + 5

5 + 2
15 + 4
20 + 4

80 + 15

80 + 40
80 + 100
50 + 100

15 + 40

4 + 15
20 + 20
20 + 40

80 + 150
80 + 300
80 + 500

50 + 1 mV

15 + 300

4 + 80

20 + 100

20 + 500

80 + 600
80 + 800

80 + 1 mV

Output Impedance Bandwidt h

50

50

50

Load Regulation

± (ppm output + µV)

10 + 2
10 + 2
10 + 4

30 + 10
120 + 16
300 ppm
600 ppm

.12%
10 + 20
10 + 20
10 + 30
30 + 50
80 + 80

100 + 700
200 + 1.1 mV
600 + 3.0 mV

10 + .2 mV
10 + .2 mV
10 + .3 mV
30 + .6 mV

80 + 3 mV
250 + 25 mV
500 + 50 mV

1000 + 110 mV

Maximum
Distortion

10 Hz-10 MHz

.05 + 10
.035 + 10
.035 + 10
.035 + 10
.035 + 10

.3 + 30
.3 + 30

2 + 30

.05 + 11
.035 + 11
.035 + 11
.035 + 11
.035 + 11

.3 + 30
.3 + 30

1 + 30

.05 + 16
.035 + 16
.035 + 16
.035 + 16
.035 + 16

.3 + 30
.3 + 30

2 + 30

.05 + 80
.035 + 80
.035 + 80
.035 + 80
.035 + 80

.3 + 110

.3 + 110

1 + 110

.05 + 700

.035 + 700
.035 + 700
.035 + 700
.035 + 700

.3 + 800

.3 + 800

2 + 800
.05 + 10 mV
.05 + 10 mV
.05 + 10 mV
.05 + 10 mV

.1 + 13 mV

1.5 + 50 mV

1.5 + 50 mV

3.5 + 100 mV

Specifications

1

1-9

5725A

Instruction Manual

AC Voltage (continued)
Secondary Performance and Operating Characteristics (continued)

Included in Uncertainty Specifications

5725A Amplifier:

Stability

Temperature Coefficient

Range Frequency ±1°C

24 Hours

10°-40°C

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

1100V

1k-20k

20k-50k

50k-100k

40-1k

Voltage

Maximum Current

Range

2.2V [Note 1]
22V
220V

1100V 6 mA 600 pF

5725A Amplifier: 1000 pF [Note 2]

1100V 5 kHz-30 kHz 70 mA

Notes:

1. 2.2V Range, 100 kHz-1.2 MHz only: uncertainty specifications cover
loads to 10 mA or 1000 pF. For higher loads, load regulation is
added.

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

3. Applies from 0°C to 40°C

100V

220V

22V

VOLTAGE

3.5V

40 Hz 30 kHz

VOLT-HERTZ CAPABILITY

10 Hz 50 Hz 1 kHz 100 kHz 1 MHz

50 mA, 0°C-40°C
20 mA, 40°C-50°C

40 Hz-5 kHz 50 mA <20 7

30 kHz-100 kHz 70 mA

10 + .5

15 + 2
40 + 2

130 + 2

Limits

FREQUENCY

[Note 3]

5

5
10
30

Load Limits

>50Ω,
1000 pF

300 pF 120-120k 5

150 pF

5700A
5725A

5205A or
5215A

7

2.2 x 10

V-Hz

5700A-03

30 MHz

Load Regulation Distortion

0°-10°C

and

[Note 2] Bandwidth

10 Hz-10 MHz

40°-50°C

±(% output)

150 pF 1000 pF

5

5
10
30

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

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

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

Settling time to full accuracy:

10 + 1

90 + 6
275 + 11
500 + 30

.10
.10
.30
.40

Frequency (Hz) Settling time (seconds)

>120k 2

+ 1 second for amplitude or frequency range change; + 2
seconds for 5700A 1100V range; + 4 seconds for 5725A
1100V range
Overshoot: <10%
Common mode rejection: 140 dB, DC to 400 Hz

Frequency:

Ranges (Hz):

10.000-11.999, 12.00-119.99

120.0-1199.9, 1.200k-11.999k

12.00k-119.99k, 120.0k-1.1999
Uncertainty: ±0.01%
Resolution: 11.999 counts
Phase lock: Selectable rear panel BNC input
Phase uncertainty (except 1100V range):
>30 Hz: ±1° + 0.05°/kHz), <30 Hz: ±3
Input voltage: 1V to 10V rms sine wave (do not exceed 1V 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 1100V range):

±1°

Stability: ±0.1°
Resolution: 1°
Output level: 2.5V rms ±0.2V
Frequency range: 50 kHz to 1 kHz, useable 10 Hz to 1.1999
MHz

°

at quadrature points (0°, ±90°, ±180°) elsewhere ±2

°

.10
.15
.30
.40

°

1-10

Introduction and Specifications

Specifications

Resistance

Nominal

Value

Ω ±ppm ±ppm

0
1

1.9
10
19

100
190

1k

1.9k
10k
19k

100k
190k

1M

1.9M
10M
19M

100M

±5°C from calibration temperature [Note 1]

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

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

Secondary Performance Specifications and Operating Characteristics

Included in Uncertainty Specifications

Absolute Uncertainty of Characterized Value

Nominal Stability

Value

±1°C

24 Hours

Temperature

Coefficient

[Note 2]

10°-40°C

0°-10°C

and

Full
Spec
Load

Range

[Note 3]

Maximum

Peak

Current

40°-50°C Value

Ω±ppm ±ppm/°C mA mA ±ppm ±mΩ

0
13245

1.9 25 6 7
10 5 2 3
19 4 2 3

100 2 2 3
190 2 2 3

1k 2 2 3

1.9k 2 2 3
10k 2 2 3
19k 2 2 3

100k 2 2 3
190k 2 2 3

1M 2.5 2.5 6

1.9M 3.5 3 10
10M 10 5 20
19M 20 8 40

100M 50 12 100

Notes:

1. Specifications apply to displayed value. 4-wire connections, except 100 mΩ.

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:

a) Calibrate at 20°C: Temperature coefficient adder is not required unless operated below 15°C or above 25°C.
b) 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

reference plane. Active compensation is limited to 11 mA load, and to 2V burden. Two wire compensation can be used only with Ω meters that
source continuous (not pulsed) dc current.



8-500 500
8-100 700 500 2 4
8-100 500 500 2 4

8-11 220 300 2 4
8-11 160 300 2 4
8-11 70 150 2 4
8-11 50 150 2 4

1-2 22 150 10 15

1-1.5 16 150 10 15

100-500 µA 7 150 50 60

50-250 µA 5 150 100 120
10-100 µA 1 150

5-50 µA 500 µA 150
5-20 µA 100 µA 200

2.5-10 µA50
.5-2 µA10

.25-1 µA5

50-200 nA 1 µA 500

A 200

µ

A 300

µ

A 300

µ

Relative Uncertainty

50

µΩ

32
25

5
4
2
2
2
2
2
2
2
2

2.5

3.5
10
20
50

Maximum

Difference

of

Characterized

to Nominal



or the meter input terminals

±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

Two-Wire Adder

active

compensation

[Note 4]

Lead

Resistance

0.1Ω 1Ω

24

as

1

1-11

5725A

Instruction Manual

Current Derating Factors

Nominal Value Value of Derating Factor K for Over or Under Current

Ω

I<I

L

(Note 1)

Two-Wire Comp

Four-Wire

I<I

L

(Note 1)

Four-Wire

I

<I<I

U

(Note 2)

MAX

SHORT
1

1.9
10
19
100
190
1k

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

1.9M
10M
19M
100M

4.4

4.4

4.4

4.4

4.4

4.4

4.4

4.4

4.4
5000
5000








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



4 X 10

1.5 X 10

1.6 X 10
3 X 10
1 X 10

1.9 X 10

0.1

0.19

2.0

3.8
2 X 10

3.8 X 10

1.5 X 10

2.9 X 10
1 X 10

1.9 X 10



-5

-4

-3

-3

-2

-2

-5

-5

-4

-4

-3

-3

Notes:

, errors occur due to thermally generated voltages within the 5700A. Use the following equation to determine the error, and add

1. For I<I

L

this error to the corresponding UNCERTAINTY or STABILITY specification.

Error = K(I

- I)/(IL X I)

L

Where: Error is in mΩ for all TWO-WIRE COMP values and FOUR-WIRE SHORT, and in ppm for the remaining FOUR-WIRE values.

1-12

K is the constant from the above table;

are expressed in mA for SHORT to 1.9 kΩ;

I and I

L

are expressed in µA for 10 kΩ to 100 M

2. For I

I and I

L

<I<I

errors occur due to self-heating of the resistors in the 5700A. Use the following equation to determine the error in ppm and

U

MAX

Ω

add this error to the corresponding UNCERTAINTY or STABILITY specification.

2

2

-I

Error in ppm = K(I

)

U

Where: K is the constant from the above table;

are expressed in mA for SHORT to 19 kΩ;

I and I

U

are expressed in µA for 100 kΩ to 100 M

I and I

U

Ω

DC Current

Range

Introduction and Specifications

Absolute Uncertainty

±5°C from calibration temperature

Resolution

For fields strengths >1 V/m but <3 V/m, add 1% of

range

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

nA ± (ppm output + nA) ± (ppm output + nA)

Relative Uncertainty ±1°C

Specifications

1

220 µA

2.2 mA
22 mA

.1

1

10

45 + 10
45 + 10

45 + 100

50 + 10
50 + 10

50 + 100

55 + 10
55 + 10

55 + 100

60 + 10
60 + 10

60 + 100

24 + 2
24 + 5

24 + 50

26 + 2
26 + 5

26 + 50

µA ± (ppm output + µA) ± (ppm output + µA)

220 mA

2.2A

[Note 1]

5725A Amplifier:

11A 10 330 + 470 340 + 480 350 + 480 360 + 480 100 + 130 110 + 130

Secondary Performance Specifications and Operating Characteristics

Included in Uncertainty Specifications

Range Stability ±1°C 24

V ± (ppm output + nA) ± (ppm output + nA)/°C ±nA/V Ω ppm output + nA nA

220 µA

2.2 mA
22 mA

220 mA

2.2A

5725A: ± (ppm output + µA) ± (ppm output + µA)/°C ppm output + µA µA

11A 25 + 100 20 + 75 30 + 120 4 0 4 15 + 70 175

Notes:
Maximum output from 5700A terminals is 2.2A. Uncertainty specifications for 220 µA and 2.2 mA ranges are increased by 1.3 X when
supplied through 5725A terminals.

Specifications are otherwise identical for all output locations.

1. Add to uncertainty specifications:

±200 X I
±10 X I

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 0.5V.

4. For higher loads, multiply uncertainty specification by:

5. 5700A compliance limit is 2V for outputs from 1A to 2.2A. 5725A Amplifier may be used in range-lock mode down to 0A.

Minimum output: 0 for all ranges, including 5725A.
Settling time to full accuracy: 1 second for µA and mA ranges; 3 seconds for 2.2A range; 6 seconds for 11A range; + 1 second for range

or polarity change
Overshoot: <5%

.1

1

Hours

5 + 1
5 + 5

5 + 50

8 + 300

9 + 7 µA

2

ppm for >100 mA on 220 mA range

2

ppm for >1A on 2.2A range

1 +

maximum load for full accuracy

55 + 1

75 + 30

Temperature Coefficient

10°-40°C

1 + .40

1 + 2

1 + 20

1 + 200

1 + 2.5 µΑ

0.1 x actual load

60 + 1

80 + 30

[Note 2]

0°-10°C

and

40°-50°C [Note 4] pk-pk RMS

3 + 1

3 + 10

3 + 100

3 + 1 µA

A3 + 10 µA

65 + 1

90 + 30

Compliance

Limits

10
10
10
10

3

[Note 5]

70 + 1

95 + 30

Burden
Voltage

Adder

[Note 3]

.2
.2

10

100

2 µA

Maximum

Load

For Full

Accuracy

20k

2k

200

20

2

26 + .3

40 + 7

Bandwidth

0.1-10 Hz

6 + .9

6 + 5

6 + 50

9 + 300

12 + 1.5 µA

30 + .3
45 + 7

Noise

Bandwidth

10-10 kHz

500

20 µA

10
10
50

1-13

5725A

Instruction Manual

AC Current

Range Resolution

220 µA1 nA

2.2 mA 10 nA

22 mA 100 nA

220 mA 1 µA

2.2A 10 µA

5725A Amplifier:

11A 100 µA

Frequency

Hz

10-20
20-40

40-1k
1k-5k

5k-10k

10-20
20-40

40-1k
1k-5k

5k-10k

10-20
20-40

40-1k
1k-5k

5k-10k

Hz

10-20
20-40

40-1k
1k-5k

5k-10k

20-1k
1k-5k

5k-10k

40-1k
1k-5k

5k-10k

Absolute Uncertainty

5°C from calibration temperature

±

For fields strengths >1 V/m but <3 V/m, add 1% of range

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

(ppm output + nA)

±

650 + 30
350 + 25
120 + 20
500 + 50

.15% + 100

650 + 50
350 + 40
120 + 40

500 + 500

.15% + 1 µA

650 + 500
350 + 400
120 + 400

500 + 5 µA

.15% + 10 µA

650 + 5
350 + 4
120 + 4

500 + 50

.15% + 100

600 + 40

700 + 100

.80% + 200

370 + 170
800 + 380

.3% + 750

700 + 30
380 + 25
140 + 20
600 + 50

.16% + 100

700 + 50
380 + 40
140 + 40

600 + 500

.16% + 1 µA

700 + 500
380 + 400
140 + 400

600 + 5 µA

.16% + 10 µA

(ppm output + µA)

±

700 + 5
380 + 4
150 + 4

600 + 50

.16% + 100

650 + 40

750 + 100

.90% + 200

400 + 170
850 + 380

.33% + 750

750 + 30
410 + 25
150 + 20
650 + 50

.17% + 100

750 + 50
410 + 40
150 + 40

650 + 500

.17% + 1 µA

750 + 500
410 + 400
150 + 400

650 + 5 µA

.17% + 10 µA

750 + 5
410 + 4
170 + 4

650 + 50

.17% + 100

700 + 40

800 + 100

.95% + 200

440 + 170
900 + 380

.35% + 750

800 + 30
420 + 25
160 + 20
700 + 50

.18% + 100

800 + 50
420 + 40
160 + 40

700 + 500

.18% + 1 µA

800 + 500
420 + 400
160 + 400

700 + 5 µA

.18% + 10 µA

800 + 5
420 + 4
180 + 4

700 + 50

.18% + 100

750 + 40

850 + 100

1.0% + 200

460 + 170
950 + 380

.36% + 750

Relative Uncertainty

(ppm output + nA)

±

450 + 30
270 + 25
110 + 20
450 + 50

.14% + 100

450 + 50
270 + 40
110 + 40

450 + 500

.14% + 1 µA

450 + 500
270 + 400
110 + 400

450 + 5 µA

.14% + 10 µA

(ppm output + µA)

±

450 + 5
280 + 4
110 + 4

450 + 50

.14% + 100

600 + 40

650 + 100

.75% + 200

300 + 170
700 + 380

.28% + 750

1°C

±

.15% + 100

.15% + 1 µA

500 + 5 µA

.15% + 10 µA

.15% + 100

.85% + 200

.32% + 750

500 + 30
300 + 25
120 + 20
500 + 50

500 + 50
300 + 40
120 + 40

500 + 500

500 + 500
300 + 400
120 + 400

500 + 5
300 + 4
130 + 4

500 + 50

650 + 40

750 + 100

330 + 170
800 + 380

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