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5725A instruction manual
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Contents
Main
Page
Table of Contents
Page
Page
Page
List of Tables
Page
List of Figures
Page
Interference Information
Declaration of the Manufacturer or Importer
Bescheinigung des Her stellers/Importeurs
Page
OPERATOR SAFETY SUMMARY
WARNING HIGH VOLTAGE
LETHAL VOLTAGE
Terms in this Manual
Page
SERVICING SAFETY SUMMARY
FOR QUALIFIED SERVICE PERSONNEL ONLY
Do Not Service Al one
Use Care When Servicing With Power On
FIRST AID FOR ELECTRIC SHOCK
Chapter 1
Introduction and Specifications
Page
1-1. Introduction
1-2. Where to Go From Here
1-3. How to Use the Manuals
1-4. 5725A Getting Started Manual
1-5. 5725A Instruction Manual
1-6. 5700A/5720A Series II Manual Set
1-7. 5700A/5720A Series II Operator Manual
1-11. Specifications
DC Voltage Specifications
1-7
1-12. DC Voltage Specifications
Table 1-1. 5720A Series II DC Voltage Specifications: 99 % and 95 % Confidence Levels
99 % Confidence Level
95% Confidence Level
1-8
Table 1-2. 5700A Series II DC Voltage Specifications: 99 % and 95 % Confidence Levels
99 % Confidence Level
95 % Confidence Level
DC Voltage Specifications
not
1-9
1-10
1-13. AC Voltage Specifications
Table 1-4. 5720A Series II AC Voltage Specifications: 99 % Confidence Level
99 % Confidence Level
1-11
Table 1-5. 5720A Series II AC Voltage Specifications: 95 % Confidence Level
95 % Confidence Level
1-12
Table 1-6. 5700A Series II AC Voltage Specifications: 99 % Confidence Level
99 % Confidence Level
1-13
Table 1-7. 5700A Series II AC Voltage Specifications: 95 % Confidence Level
5 C from calibrati on temperature
95% Confidence Level
1-14
Table 1-8. AC Voltage Secondary Performance Specifications and Operating Characteristics
Stability 1 C [Note 1] Temperature Coeffici ent Maximum
Distortion Range Frequency 24 Hours 10-40 C 0-10 C and 40-50 C Output Impedance Bandwidth
10 Hz-10 MHz Hz VV/C (% output + V)
1-15
Figure 1-1. Volt-Hertz Capability
Stability 1 C [Note 1] Temperature Coeffici ent
Adder Distortion Bandwidth Range Frequency 24 Hours 10-40 C 0-10 C and 40-50 C
Load Regulation [Note 2]
1-14. Resistance Specifications
Table 1-9. 5720A Series II Resistance Specifications: 99 % and 95 % Confidence Levels
99% Confidence Level
95 % Confidence Level
Resistance Specifications
1-17
Table 1-10. 5700A Series II Resistance Specifications: 99 % and 95 % Confidence Levels
99 % Confidence Level
95 % Confidence Level
1-18
Resistance Specifications
1-20
1-15. DC Current Specifications
DC Current Specifications
1-21
1-22
Table 1-15. DC Current Secondary Performance Specifications and Operating Characteristics
1-23
1-16. AC Current Specifications
Table 1-16. 5720A Series II AC Current Specifications: 99 % Confidence Level
99 % Confidence Level
For fields strengths >0.4 V/m but 3 V/m,
1-24
Table 1-17. 5720A Series II AC Current Specifications: 95 % Confidence Level
95 % Confidence Level
For fields strengths >0.4 V/m but 3 V/m ,
1-25
Table 1-18. 5700A Series II AC Current Specifications: 99 % Confidence Level
99 % Confidence Level
For fields strengths >0.4 V/m but 3 V/m,
1-26
Table 1-19. 5700A Series II AC Current Specifications: 95 % Confidence Level
95 % Confidence Level
For fields strengths >0.4 V/m but 3 V/m ,
1-27
Table 1-20. AC Current Secondary Performance Specifications and Operating Characteristics
1-28
1-17. Wideband AC Voltage (Option 5700-03) Specifications
Table 1-21. Wideband AC Voltage (Option 5700-03) Specifications
Specifications apply to the end of the cable and 50 termination used for calibration
General Specifications
1-29
1-18. General Specifications
1-30
1-19. Auxiliary Amplifier Specifications
For complete specifications, see the 5205A and 5220A Operators Manuals.
5220A (AC Current, 180-day specifications):
Chapter 2
Installation
Page
2-1. Introduction
2-2. Unpacking and Inspection
2-4
2-3. Service Information
2-4. Placement and Rack Mounting
2-5. Cooling Considerations
2-6. Connecting to the 5700A Cali br ator
Installation Selecting Line Voltage
2-7
2-7. Selecting Line Voltage
Figure 2-3. Line Power Label and Switch Location
!
CAUTION
!
2-8. Accessing the Fuse
2-9. Connecting to Line Power
Page
Chapter 3
Operating Notes
Page
3-1. Introduction
3-4
3-2. Front Panel Features
Figure 3-1. Front Panel Features
Operating Notes Rear Panel Features
3-5
A
B 5725A STANDBY Indicator
C CURRENT MODE Indicator
D VOLTAGE MODE Indicator
E
3-3. Rear Panel Features
Figure 3-2. Rear Panel Features
CAUTION
FUSE
CHASSIS GROUND
A
B CALIBRATION Switch
C 5700A CALIBRATOR Connector
D Fan Filter
E Line Voltage/Fuse Rating Label
3-4. Turning on the 5725A Amplifier
3-5. Warm Up
3-6. 5725A Operating Functi ons and Modes
3-7. Standby
3-8. Voltage Standby
3-9. Current Standby
3-10. Voltage Operate
3-11. Current Operate
3-12. Conditions That Acti vate the 5725A
Chapter 4
Theory of Operation
Page
4-1. Introduction
4-2. Overall Functi onal Description
Page
4-3. 1100V AC Range Functional Description
4-4. 11A Range Functional Description
4-5. Operation in the 11A DC Range
4-6. Operation in the 11A AC Range
4-7. Voltage and Current Standby Modes
4-8. Voltage Standby
4-9. Current Standby
4-10. How the 5700A and 5725A Communicate
4-11. Description of the Out-Guard Lines (5725A Side)
4-12. Description of the In-Guard Lines
4-13. Functional Summaries by Assembly
4-14. Detailed Circuit Description
4-15. Interconnect Assembly (A1)
4-16. Power Supply Assembly (A4)
4-17. High Voltage Supply Section
4-18. Switching Section
4-19. Current-Limit Section
4-20. System Supply Section
4-21. Fan Supply Section
4-22. Digital Assembly (A5)
4-23. Microcomputer
4-24. External RAM.
4-25. External ROM
Page
4-26. EEROM
4-27. Data Latch
4-28. Strobe Lines
4-29. Led Driver
4-30. Optoisolator Link
4-31. Break-Detect Circuitry
4-32. Power Up and Reset Circuitry
4-33. Watchdog Timer
4-34. Current Amplifier Assembly (A2)
Page
4-35. Error Amplifier Section
4-36. Output Stage Section
4-37. Monitor Section
4-38. Control and Switching Section
4-39. Power Supply Section
4-40. High Voltage Amplifier (A3)
4-41. Input Amplifier
Page
4-42. Integrator
4-43. Window Comparator
4-44. Input Clamp
4-45. Transconductance and Cascode Stage
4-46. Midstage
4-47. Midstage -400V Filter
4-48. High Voltage Heat Sink Assemblies
4-49. Autobias Current Source
4-50. Autobias Sense Circuit
4-51. High Voltage Amplifier Feedback
4-52. Signal Transformers
4-53. Temperature Monitoring
4-54. High Voltage Sense Assembly (A6)
Page
4-55. Sense Amplifier Section
Page
4-56. Analog Monitor Section
4-57. Serial Interface/Guard Crossing Section
4-58. Analog Input Switching Section
4-59. Control Section
4-60. AC Line Voltage Selection Section
Page
Page
Page
5-1. Introduction
5-2. Where to Find Further Information
Page
static awareness
A Message From
Fluke Corporation
Page
Chapter 6
Maintenance
Page
6-1. Introduction
6-2. Replacing the Fuse
6-3. Cleaning the Air Filter
6-4. General Cleaning
6-5. Cleaning PCAs
6-6. Access Procedures
6-7. Initial Access Procedure
Page
6-8. Accessing the Power Supply Assembly (A4)
6-9. Accessing the Digital Assembly (A5)
Page
6-10. Accessing the Current Amplifier Assembly (A2)
6-11. Accessing the High Voltage Amplifier (A3)
6-12. Accessing the High Voltage Sense Assembly (A6)
6-13. Accessing the High Voltage Output Transistors
6-14. Accessing the Interconnect Assembly (A1)
6-15. Enabling Front or Rear Binding Posts
Page
Chapter 7
Troubleshooting
Page
7-1. Introduction
7-2. 5725A Fault Codes
7-3. Self Diagnostics
7-4
Page
7-4. Manual Tests for Fault Isolation
7-5. Problems 1 or 2: Fault at Power-Up or When Entering Voltage Standby
7-6. Problem 3: Fault When Entering Voltage Operate
7-7. Problem 4: Fault When Entering Current Standby
7-8. Problem 5: Fault When Entering Current Operate
7-9. Reduced-Voltage Troubl eshooti ng Mode
7-10. Testing the Power Suppl y By I tself
Page
Chapter 8
List of Replaceable Parts
Page
8-1. Introduction
8-2. How to Obtain Parts
8-3 . Manual St atus Information
8-4. Newer Instruments
8-5. Service Centers
8-6. Parts Lists
8-5
Table 8-2. Final Assembly (cont)
8-6
Table 8-2. Final Assembly (cont)
Page
Page
Page
Page
Page
Page
Page
Page
8-15
Table 8-3. A1 Interconnect PCA
Page
8-17
Table 8-4. A2 Current Amplifier PCA
8-18
Table 8-4. A2 Current Amplifier PCA (cont)
8-19
Table 8-4. A2 Current Amplifier PCA (cont)
Page
8-21
Table 8-5. A3 High Voltage Amplifier PCA
8-22
Table 8-5. A3 High Voltage Amplifier PCA (cont)
8-23
Table 8-5. A3 High Voltage Amplifier PCA (cont)
Page
8-25
Table 8-6. A4 Power Supply PCA
8-26
Table 8-6. A4 Power Supply PCA (cont)
8-27
Table 8-6. A4 Power Supply PCA (cont)
Page
8-29
Table 8-7. A5 Digital PCA
Page
8-31
Table 8-8. A6 High Voltage Sense PCA
8-32
Table 8-8. A6 High Voltage Sense PCA (cont)
8-33
Table 8-8. A6 High Voltage Sense PCA (cont)
Page
8-35
Table 8-9. A12 Transformer Enclosure Assembly
Page
Page
Page
Page
8-40
Chapter 9
Schematic Diagrams
Page
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5725A Instruction Manual
9-16
Page
5725A Instruction Manual
Figure 9-6. A6 High Voltage Sense PCA
9-18
VOLTAGE STANDBY STANDBY
A
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Index
5
A
B
C
D
F
H
I
L
R
S
T
U
V