5725A
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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
1-14
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