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Fluke 5520A Service Manual

Fluke 5520A
254 pages
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®
5520A
Multi-Product Calibrator
Service Manual
PN 802303
April 1999 Rev. 1, 12/02
© 1999, 2002 Fluke Corporation, All rights reserved. Printed in U.S.A.
All product names are trademarks of their respective companies

Table of Contents

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Fluke 5520A Specifications

General IconGeneral
TypeMulti-Product Calibrator
Voltage DC Range0 to ±1020 V
Current DC Range0 to ±20.5A
Resistance Range0 to 1100 MΩ
InterfaceIEEE-488, RS-232
Power Supply50/60Hz
Voltage AC Range0 to 1020 V

Summary

Chapter 1 Introduction and Specifications

1-1. Introduction

Overview of the Fluke Model 5520A Multi-Product Calibrator and its capabilities.

1-8. Specifications

Lists the 5520A specifications, valid after warm-up, and includes dimensional outline.

1-9. General Specifications

Details general specifications including warmup, settling time, temperature, altitude, safety, and EMC.

1-10. DC Voltage Specifications

Provides absolute uncertainty, stability, resolution, and noise for DC voltage outputs.

1-11. DC Current Specifications

Details absolute uncertainty, resolution, compliance voltage, and noise for DC current outputs.

1-12. Resistance Specifications

Lists absolute uncertainty, floor values, resolution, and allowable current for resistance ranges.

1-13. AC Voltage (Sine Wave) Specifications

Provides specifications for AC voltage (sine wave) including uncertainty, distortion, and noise.

1-14. AC Current (Sine Wave) Specifications

Details specifications for AC current (sine wave) including uncertainty, compliance adder, and noise.

1-15. Capacitance Specifications

Lists absolute uncertainty and allowed frequency/charge-discharge rate for capacitance ranges.

1-16. Temperature Calibration (Thermocouple) Specifications

Provides absolute uncertainty for various thermocouple types and temperature ranges.

1-24. Frequency Specifications

Lists frequency range, resolution, absolute uncertainty, and jitter.

Chapter 2 Theory of Operation

2-1. Introduction

Provides a block diagram discussion of the calibrator’s analog and digital sections.

2-4. DDS Assembly (A6)

Details the blocks within the DDS assembly, including references, gain elements, and DACs.

2-5. Current Assembly (A7)

Describes the current assembly, its ranges, voltage outputs, and constituent blocks.

2-6. Voltage Assembly (A8)

Explains the voltage assembly's generation of DC and AC voltage outputs.

2-7. Main CPU Assembly (A9)

Details the Main CPU's communication with other assemblies and its memory structure.

2-8. Power Supplies

Explains AC line voltage application to the power module and internal grounds.

Chapter 3 Calibration and Verification

3-1. Introduction

Guidance on recalibration intervals and using the manual for site calibration.

3-2. Equipment Required for Calibration and Verification

Lists consolidated required equipment for calibrating and verifying the 5520A.

3-3. Calibration

Outlines the major steps involved in the calibration procedure.

3-5. DC Volts Calibration (NORMAL Output)

Procedure for calibrating the DC volts function using specific test equipment.

3-7. AC Volts Calibration (NORMAL Output)

Procedure for calibrating the AC volts function using specific test equipment.

3-9. DC Current Calibration

Details the procedure for calibrating the DC current function, including saving constants.

3-10. AC Current Calibration

Explains AC current calibration, including shunt characterization procedures.

3-13. Resistance Calibration

Procedure for calibrating resistance function using DMM and resistance standards.

3-14. Capacitance Calibration

Procedure for calibrating the capacitance function using LCR meter and special cables.

3-18. Zeroing the Calibrator

Procedure to zero the calibrator, recalibrating internal circuitry and DC offsets.

3-19. Verifying DC Volts (NORMAL Output)

Tests DC voltage performance against specified limits.

3-23. Verifying AC Voltage (NORMAL Output)

Tests AC voltage performance against specified limits.

3-25. Verifying AC Current

Tests AC current performance against specified limits using shunts.

3-26. Verifying Capacitance

Verifies capacitance performance against specified limits using RCL meter.

3-34. Verifying Frequency Accuracy

Verifies frequency accuracy using a Fluke PM 6680B Frequency Counter.

Chapter 4 Maintenance

4-1. Introduction

Information on instrument servicing and access procedures for modules.

4-2. Access Procedures

Details procedures for removing various assemblies like analog modules and CPU.

4-3. Removing Analog Modules

Step-by-step guide for removing Voltage, Current, DDS, or Synthesized Impedance modules.

4-4. Removing the Main CPU (A9)

Procedure for removing the Main CPU PCA without affecting rear panel or filter PCA.

4-9. Diagnostic Testing

Explains the instrument's self-testing capabilities for isolating faulty modules.

4-10. Running Diagnostics

Details the steps to run diagnostics, including cable removal and short circuit connection.

4-12. Complete List of Error Messages

Provides a comprehensive list of error messages and their meanings.

Chapter 5 List of Replaceable Parts

5-1. Introduction

Lists replaceable parts for the Fluke 5520A, organized by assembly.

5-2. How to Obtain Parts

Information on ordering electronic components directly from Fluke or its representatives.

A1 *PCB, KEYBOARD

Part details for the PCB Keyboard assembly.

A5 *PCA, SYNTHESIZED IMPEDANCE

Part details for the PCA Synthesized Impedance assembly.

A6 *PCA, DDS

Part details for the PCA DDS assembly.

A7 *PCA, CURRENT

Part details for the PCA Current assembly.

A8 *PCA, SUB-ASSY, VOLTAGE

Part details for the PCA Sub-Assembly, Voltage.

A9 *PCA, MAIN CPU

Part details for the PCA Main CPU assembly.

MP1 FRONT PANEL, MODIFIED

Part details for the modified Front Panel assembly.

MP21 ENCODER WHEEL

Part details for the Encoder Wheel component.

T1 TRANSFORMER, POWER, MAIN

Part details for the Main Power Transformer.

Chapter 6 SC600 Option

6-1. Introduction

Information and service procedures for the SC600 Oscilloscope Calibration Option.

6-3. SC600 Specifications

Lists specifications for the SC600 Option, valid under specific operating conditions.

6-4. Volt Specifications

Details DC signal and Square Wave signal voltage specifications for SC600.

6-5. Edge Specifications

Provides edge characteristics like rise time, amplitude range, and aberrations.

6-6. Leveled Sine Wave Specifications

Details leveled sine wave specs including amplitude, frequency, and distortion.

6-8. Wave Generator Specifications

Lists specifications for wave generator characteristics: amplitude, range, and frequency.

6-27. Equipment Required for Calibration and Verification

Lists equipment and minimum specifications for SC600 calibration procedures.

6-28. SC600 Calibration Setup

Guidance on setting up for SC600 calibration, recommending factory return if possible.

6-33. DC Voltage Calibration

Procedure for calibrating the DC voltage function of the SC600 option.

6-34. AC Voltage Calibration

Procedure for calibrating the AC voltage function of the SC600 option.

6-36. Edge Amplitude Calibration

Procedure to calibrate edge amplitude using HP 3458A and specific setup.

6-38. Leveled Sine Wave Flatness Calibration

Procedure for calibrating leveled sine wave flatness in low and high frequency bands.

6-41. Pulse Width Calibration

Procedure to calibrate pulse width using a digital storage oscilloscope.

6-42. MeasZ Calibration

Procedure for calibrating MeasZ function using known resistors and capacitors.

6-43. Verification

Overview of SC600 function verification procedures, recommending factory return.

6-44. DC Voltage Verification

Verifies DC voltage function against specified limits using HP 3458A.

6-47. AC Voltage Amplitude Verification

Verifies AC voltage amplitude using HP 3458A and specific setup.

6-50. AC Voltage Frequency Verification

Verifies AC voltage frequency using PM 6680 Frequency Counter.

6-51. Edge Amplitude Verification

Verifies edge amplitude using HP 3458A and specific setup.

6-54. Edge Rise Time Verification

Tests and verifies the edge function's rise time using an oscilloscope.

6-55. Edge Abberation Verification

Verifies edge aberrations by observing signals on an oscilloscope.

6-57. Leveled Sine Wave Amplitude Verification

Verifies leveled sine wave amplitude using the 5790A AC Measurement Standard.

6-58. Leveled Sine Wave Frequency Verification

Verifies leveled sine wave frequency using a PM 6680 Frequency Counter.

6-60. Leveled Sine Wave Flatness Verification

Procedure for verifying leveled sine wave flatness in low and high frequency bands.

6-63. Low Frequency Verification

Example procedure for testing low frequency flatness using 5790A.

6-64. High Frequency Verification

Procedure for testing high frequency flatness using HP 8482A power sensor.

6-65. Time Marker Verification

Verifies time marker function using PM 6680 Frequency Counter.

6-66. Wave Generator Verification

Verifies wave generator function using 5790A AC Measurement Standard.

6-69. Pulse Width Verification

Procedure to verify pulse width using a digital storage oscilloscope.

6-71. MeasZ Resistance Verification

Verifies MeasZ resistance function using known resistors and HP 3458A DMM.

6-72. MeasZ Capacitance Verification

Verifies MeasZ capacitance function using known capacitors and HP 4192A.

6-73. Overload Function Verification

Verifies the overload function by testing output under overload conditions.

6-74. SC600 Hardware Adjustments

Details hardware adjustments for leveled sine and edge functions after repair.

6-76. Adjusting the Leveled Sine Wave Function

Procedure to adjust leveled sine wave function, covering VCO balance and harmonics.

6-78. Adjusting the Leveled Sine Wave VCO Balance

Procedure to adjust VCO balance for leveled sine wave function.

6-79. Adjusting the Leveled Sine Wave Harmonics

Procedure to adjust harmonics for the leveled sine wave function.

6-80. Adjusting the Aberrations for the Edge Function

Procedure to adjust edge aberrations after repair for the edge function.

6-82. Adjusting the Edge Aberrations

Detailed steps for adjusting edge aberrations using oscilloscope settings.

Chapter 6 SC300 Option

6-83. Introduction

Information and service procedures for the SC300 Oscilloscope Calibration Option.

6-85. SC300 Specifications

Lists specifications for the SC300 Option, valid under specific operating conditions.

6-86. Voltage Function Specifications

Details DC Signal and AC Square Wave Signal voltage specs for SC300.

6-87. Edge Function Specifications

Provides edge characteristics like amplitude, frequency, rise time, and aberrations.

6-88. Leveled Sine Wave Function Specifications

Details leveled sine wave specs including amplitude, frequency, and distortion.

6-89. Time Marker Function Specifications

Lists time marker specifications for various time intervals and wave shapes.

6-90. Wave Generator Specifications

Details wave generator specs for square, sine, and triangle waves.

6-99. Equipment Required for Calibration and Verification

Lists equipment and minimum specs for SC300 calibration and verification.

6-100. SC300 Calibration Setup

Guidance on SC300 calibration, recommending factory return if possible.

6-101. Calibration and Verification of Square Wave Functions

Covers calibration and verification of square wave voltages for AC Voltage and Edge.

6-104. DC Voltage Calibration

Procedure for calibrating the DC voltage function of the SC300 option.

6-105. AC Square Wave Voltage Calibration

Procedure for calibrating the AC Square Wave voltage function of the SC300.

6-106. Edge Amplitude Calibration

Procedure to calibrate edge amplitude using HP 3458A and specific setup.

6-107. Leveled Sine Wave Amplitude Calibration

Verifies leveled sine wave amplitude using the 5790A AC Measurement Standard.

6-108. Leveled Sine Wave Flatness Calibration

Procedure for calibrating leveled sine wave flatness in low and high frequency bands.

6-109. Low Frequency Calibration

Example procedure for testing low frequency flatness using 5790A.

6-110. High Frequency Calibration

Procedure for testing high frequency flatness using power meter and sensor.

6-111. Verification

Overview of SC300 function verification procedures, recommending factory return.

6-112. DC Voltage Verification

Verifies DC voltage function against specified limits using HP 3458A.

6-115. AC Voltage Amplitude Verification

Verifies AC voltage amplitude using HP 3458A and specific setup.

6-118. AC Voltage Frequency Verification

Verifies AC voltage frequency using PM 6680 Frequency Counter.

6-119. Edge Amplitude Verification

Verifies edge amplitude using HP 3458A and specific setup.

6-120. Edge Frequency Verification

Verifies edge frequency using PM 6680 Frequency Counter.

6-121. Edge Duty Cycle Verification

Verifies edge duty cycle using PM 6680 Frequency Counter.

6-122. Edge Rise Time Verification

Tests and verifies the edge function's rise time using an oscilloscope.

6-123. Edge Abberation Verification

Verifies edge aberrations by observing signals on an oscilloscope.

6-124. Leveled Sine Wave Amplitude Verification

Verifies leveled sine wave amplitude using the 5790A AC Measurement Standard.

6-125. Leveled Sine Wave Frequency Verification

Verifies leveled sine wave frequency using a PM 6680 Frequency Counter.

6-126. Leveled Sine Wave Harmonics Verification

Verifies leveled sine wave harmonics using a Spectrum Analyzer.

6-127. Leveled Sine Wave Flatness Verification

Procedure for verifying leveled sine wave flatness in low and high frequency bands.

6-128. Equipment Setup for Low Frequency Flatness

Equipment setup for low frequency flatness procedures.

6-129. Equipment Setup for High Frequency Flatness

Equipment setup for high frequency flatness procedures.

6-130. Low Frequency Verification

Example procedure for testing low frequency flatness using 5790A.

6-131. High Frequency Verification

Procedure for testing high frequency flatness using power meter and sensor.

6-132. Time Marker Verification

Verifies time marker function using PM 6680 Frequency Counter.

6-133. Wave Generator Verification

Verifies wave generator function using 5790A AC Measurement Standard.

6-134. Verification at 1 MΩ

Verifies wave generator function at 1 MΩ impedance.

6-135. Verification at 50 Ω

Verifies wave generator function at 50 Ω impedance.

6-136. SC300 Hardware Adjustments

Details hardware adjustments for leveled sine and edge functions after repair.

6-138. Adjusting the Leveled Sine Wave Function

Procedure to adjust leveled sine wave function, covering VCO balance and harmonics.

6-140. Adjusting the Leveled Sine Wave Harmonics

Procedure to adjust harmonics for the leveled sine wave function.

6-141. Adjusting the Aberrations for the Edge Function

Procedure to adjust edge aberrations after repair for the edge function.

6-143. Adjusting the Edge Aberrations

Detailed steps for adjusting edge aberrations using oscilloscope settings.

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