Fluke 5790A Générateur de niveau
Fabricant:
Modèle:
5790A
Date:
1992
Catégorie:
Groupe:
Description:
AC Measurement Standard

Information

The 5790A AC Measurement Standard is a systems instrument that measures ac voltage with the uncertainty of a thermal transfer standard. You control the 5790A’s operation from the front panel or remotely over the serial or IEEE-488 interface. You can operate the 5790A in measurement mode or transfer mode. In measurement mode, the 5790A operates as a digital ac voltmeter with up to 8 digits of resolution. Measurement mode uses an internal dc reference. In transfer mode, you apply an external dc or ac reference source. The 5790A automatically performs switching and calculations, and displays the resulting ac-dc or ac-ac difference on the vacuum fluorescent Control Display. The 5790A covers a voltage range of 700 μν to 1000V (70 mV minimum in transfer mode), and a frequency range of 10 Hz to 1 MHz. A wideband voltage option extends frequency range to 30 MHz. The 5790A is also compatible with Fluke A40 current shunts, which permit you to make ac-dc or ac-ac current transfer measurements up to 20A. Refer to the Specifications for details, A variety of input connections allows you to use the one that best suits your application. There are four sets of input terminals on the 5790A two 50Ω Type “N” connectors and two sets of five-way binding posts. One 50Ω Type “N” and one set of binding posts is dedicated to the ac measurement and transfer modes. AC or DC voltages can be applied to either input connection, allowing you to perform automated ac-dc transfer measurements. The second Type “N” input connection supports the optional wideband mode, and the SHUNT binding posts are for Fluke A40 Series current shunts. Two patented internal standards contribute the most to the 5790A’s ability to measure rms ac voltage with such low uncertainty. These two standards are a stable and precisely variable dc source similar to the one in the Fluke 5700A Calibrator and a high- performance thermal rms sensor similar to the one in the Fluke 792A AC/DC Transfer Standard. Reference amplifiers establish the accuracy and stability of the internal dc source. A patented 26-bit digital-to-analog Converter (dac) provides the 5790A with the ability to precisely vary its internal dc source. This is a pulse-width modulated dac with linearity typically better than 0.2 ppm of full scale. On the ac side, the Fluke rms sensor is similar in principle to a thermal voltage Converter (thermocouple), but has faster settling time, low dc reversal error, higher signal-to-noise ratio, and excellent frequency performance.

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342
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english
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Manuel-ID:
PN 893292
Date:
01 février 1994
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Information

1-1. INTRODUCTION ... 1-3 1-2. WARRANTY AND SERVICE INFORMATION..! ... 1-3 1-3. SPECIFICATIONS ... 1-3 2 Theory of Operation ... 2-1 2-1. INTRODUCTION ... 2-5 2-2. 5790A OVERVIEW ... 2-5 2-3. FUNCTIONAL BLOCK DIAGRAM DISCUSSION ... 2-5 2-4. DIGITAL SECTION OVERVIEW ... 2-6 2-5. ANALOG SECTION OVERVIEW ... 2-6 2-6. SYSTEM INTERCONNECT DETAILED CIRCUIT DESCRIPTION . 2-6 2-7. Digital Motherboard Assembly (A4) ... 2-9 2-8. Transformer Assembly (A22) ... 2-9 2-9. Analog Motherboard Assembly (A3) ... 2-9 2-10. Rear Panel I/O Assembly (A21) ... 2-10 2-11. REAR PANEL POWER SUPPLIES ... 2-10 2-12. REAR PANEL DIGITAL CONTROL ... 2-10 2-13. CLOCK REGENERATION CIRCUIT ... 2-10 2-14. IEEE-488 (GPIB) Interface ... 2-10 2-15. RS-232-C Interface ... 2-10 2-16. REAR PANEL CPU Interface ... 2-11 2-17. DIGITAL SECTION DETAILED CIRCUIT DESCRIPTION ... 2-11 2-18. Digital Power supply Assembly (A 19) ... 2-11 2-19. +5V Power supply ... 2-12 2-20. ±12V POWER SUPPLIES ... 2-12 2-21. +35V Power supply ... 2-12 2-22. +75V Power supply ... 2-12 2-23. +35V AND +75V SHUT-DOWN CIRCUIT ... 2-12 2-24. CPU Assembly (A20) ... 2-13 2-25. POWER-UP AND RESET CIRCUIT ... 2-13 2-26. CLOCK GENERATION ... 2-17 2-27. WATCHDOG TIMER ... 2-17 2-28. ADDRESS DECODING AND DTACK (DATA ACKNOWLEDGE) ... 2-17 2-29. INTERRUPT CONTROLLER ... 2-18 2-30. GLUE LOGIC ... 2-18 2-31. RAM (RANDOM-ACCESS MEMORY) ... 2-19 2-32. ROM (READ-ONLY MEMORY) ... 2-19 2-33. ELECTRIC ALLY-ERA SABLE PROGRAMMABLE READ-ONLY MEMORY (EEPROM) ... 2-19 2-34. DUART (DUAL UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER) CIRCUIT ... 2-19 2-35. CLOCK/CALENDAR CIRCUIT ... 2-19 2-36. CLOCK FILTER CIRCUIT ... 2-20 2-37. CPU TO REAR PANEL INTERFACE ... 2-20 2-38. CPU TO FRONT PANEL INTERFACE ... 2-20 2-39. Front Panel Assembly (A2) ... 2-20 2-40. CLOCK REGENERATION CIRCUITRY ... 2-20 2-41. REFRESH FAILURE DETECT CIRCUITRY ... 2-20 2-42. DECODING AND TIMING CIRCUITRY ... 2-21 2-43. CONTROL DISPLAY CIRCUITRY ... 2-21 2-44. MEASUREMENT DISPLAY CIRCUITRY ... 2-22 2-45. KEYBOARD SCANNER CIRCUITRY ... 2-23 2-46. LED CIRCUITRY ... 2-23 2-47. Keyboard Assembly (Al) ... 2-24 2-48. ANALOG SECTION DETAILED CIRCUIT DESCRIPTION ... 2-24 2-49. Filter Assembly (A 18) ... 2-24 2-50. UNREGULATED CH SUPPLIES ... 2-24 2-51. UNREGULATED LH SUPPLIES ... 2-25 2-52. UNREGULATED ±17 SR SUPPLIES ... 2-25 2-53. 1RIAC CIRCUIT ... 2-26 2-54. FR1 SUPPLIES ... 2-26 2-55. UNREGULATED FR1 SUPPLY ... 2-26 2-56. ER2 SUPPLIES ... 2-26 2-57. Regulator/Guard Crossing Assembly (A 17) ... 2-26 2-58. VOLTAGE REGULATOR CIRCUITRY ... 2-26 2-59. REGULATED LH SUPPLIES ... 2-27 2-60. REGULATED ±17S SUPPLIES ... 2-27 2-61. REGULATED ±15CH SUPPLIES ... 2-28 2-62. FR1 SUPPLY ... 2-28 2-63. FR2 SUPPLY ... 2-28 2-64. GUARDED DIGITAL CONTROL CIRCUITRY ... 2-28 2-65. Inguard CPU Memory Map ... 2-28 2-66. Inguard Memory Configuration ... 2-28 2-67. Inguard Clock Circuit ... 2-28 2-68. Inguard Watchdog Timer ... 2-29 2-69. Power-Up and Reset Circuitry ... 2-29 2-70. Break Detection ... 2-30 2-71. Fiber-Optic Link to CPU ... 2-30 2-72. Interface to Guarded Digital Bus ... 2-30 2-73. Inguard CPU Interrupts ... 2-30 2-74. Transfer Assembly (A10) ... 2-30 2-75. INPUT SIGNAL PATHS ... 2-31 2-76. 700 AND 1000V Ranges ... 2-32 2-77. 7 to 220V Ranges ... 2-32 2-78. Millivolt Ranges ... 2-32 2-79. SHUNT Input Signal Path ... 2-32 2-80. PRECISION AMPLIFIERS ... 2-32 2-81. THERMAL SENSOR CIRCUIT ... 2-34 2-82. DIGITAL Interface AND CONTROL ... 2-35 2-83. A/D Amplifier Assembly (A 15) ... 2-35 2-84. CHOPPER CIRCUIT ... 2-35 2-85. 2V Divider/DC Reference Select ... 2-35 2-86. Precision Inverter ... 2-36 2-87. Chopper Oscillator ... 2-36 2-88. Chopper Switches ... 2-36 2-89. Chopper Attenuator ... 2-36 2-90. A/D Amplifier CIRCUITS ... 2-37 2-91. Null DAC ... 2-37 2-92. Instrumentation Amplifier ... 2-38 2-93. Switchable Active Low-Pass Filter ... 2-38 2-94. A/D Converter ... 2-38 2-95. Frequency Counter and Low-Pass Filter ... 2-39 2-96. DIGITAL CONTROL AND Power supply ... 2-39 2-97. DAC Assembly (A16) ... 2-39 2-98. DAC ASSEMBLY REFERENCE CIRCUITRY ... 2-41 2-99. DUTY-CYCLE CONTROL CIRCUIT ... 2-41 2-100. DAC FILTER CIRCUIT ... 2-42 2-101. DAC OUTPUT STAGE ... 2-42 2-102. SENSE CURRENT CANCELLATION CIRCUIT ... 2-43 2-103. LINEARITY CONTROL CIRCUIT ... 2-43 2-104. NEGATIVE OFFSET CIRCUIT ... 2-43 2-105. Wideband Module (A6, Option -03) ... 2-43 2-106. INPUT SIGNAL PATH FOR THE UPPER FOUR RANGES.. 2-44 2-107. INPUT SIGNAL PATH FOR THE LOWER FOUR RANGES. 2-44 2-108. DC OFFSET FEEDBACK FOR Amplifier U3 (LOWER RANGES) ... 2-46 2-109. RMS SENSOR CIRCUIT ... 2-46 2-110. TRANSFER METHODOLOGY ... 2-46 2-111. DC OFFSET FEEDBACK FOR THE RMS SENSOR Amplifier 2-47 2-112. RANGE COMPARATOR ... 2-47 2-113. WIDEBAND FREQUENCY Counter ... 2-47 2-114. DIGITAL CONTROL ... 2-48 2-115. A6A2 INPUT PROTECTION MODULE ... 2-48 3 Calibration and Verification ... 3-1 3-1. INTRODUCTION ... 3-3 3-2. Calibration Cycle ... 3-3 3-3. Periodic and Service Calibration ... 3-3 3-4. Full or Range Calibration ... 3-3 3-5, Automating Calibration and Verification ... 3-3 3-6. How Calibration Memory is Organized ... 3-4 3-7. How to Use the Calibration Menus ... 3-5 3-8. THE CAL MENU ... 3-5 3-9. ZERO CAL SOFTKEY ... 3-6 3-10. SEE CAL DATES SOFTKEY ... 3-6 3-11. CAL REPORTS SOFTKEY ... 3-6 3-12. UPDATE CAL DATES MENU ... 3-6 3-13. PERIODIC CALIBRATION ... 3-6 3-14. Calibrating the Main Input ... 3-7 3-15. CHARACTERIZING THE DC SOURCE ... 3-7 3-16. DC CALIBRATION ... 3-12 3-17. AC CALIBRATION ... 3-20 3-18. Calibrating the Wideband AC Option ... 3-26 3-19. CHARACTERIZING THE AC SOURCE ... 3-26 3-20. CALIBRATING WIDEBAND INPUT GAIN AT 1 kHz ... 3-29 3-21. CALIBRATING WIDEBAND INPUT FLATNESS ... 3-30 3-22. SERVICE CALIBRATION ... 3-32 3-23. Xfer Offset Adjustment ... 3-32 3-24. Wideband Amplifier Rolloff Adjustment ... 3-36 3-25. VERIFICATION ... , ... 3-39 3-26. Verifying the Main Input (INPUT 1 or 2) ... 3-39 3-27. VERIFYING AC-DC DIFFERENCE FOR REGIONS I AND III (70 mV THROUGH 1000V) ... 3-46 3-28. VERIFYING ABSOLUTE AC ERROR FOR REGION IV (70 mV THROUGH 700 mV) ... 3-46 3-29. VERIFYING ABSOLUTE AC ERROR FOR REGION H (2.2V THROUGH 1000V) ... 3-46 3-30. VERIFYING ABSOLUTE AC ERROR FOR REGION V (7 mV THROUGH 22 mV) ... 3-48 3-31. Verifying the Wideband AC Option ... 3-49 3-32. WIDEBAND 1-kHz GAIN VERIFICATION, 7V, 2.2V, 700 mV, 220 mV, and 70 mV RANGES ... 3-51 3-33. WIDEBAND 1-kHz GAIN VERIFICATION, 22 mV RANGE . 3-51 3-34. WIDEBAND 1-kHz GAIN VERIFICATION, 7 mV RANGE .. 3-52 3-35. WIDEBAND 1-kHz GAIN VERIFICATION, 2.2 mV RANGE. 3-52 3-36. WIDEBAND GAIN VERIFICATION, 10 Hz TO 500 kHz ... 3-53 3-37. WIDEBAND FLATNESS VERIFICATION ... 3-53 4 Maintenance ... 4-1 4-1. INTRODUCTION ... 4-3 4-2. CLEANING THE AIR FILTER ... 4-3 4-3. GENERAL CLEANING ... 4-3 44. CLEANING PCA’S ... 4-3 4-5. ACCESS PROCEDURES ... 4-3 4-6. Top and Bottom Covers ... 4-5 4-7. Digital Section Cover ... 4-5 4-8. Analog Section Covers ... , ... 4-5 4-9. Rear Panel Removal and Installation ... 4-5 4-10. Rear Panel Assembly Access ... 4-5 4-11. Front Panel Removal and Installation ... 4-5 4-13. KEYBOARD ASSEMBLY REMOVAL AND INSTALLATION 4-9 4-14. Analog Assembly Removal and Installation ... 4-9 4-15. Digital Assembly Removal and Installation ... 4-9 4-16. Power Transformer Removal and Installation ... 4-9 4-17. Hybrid Cover Removal ... 4-11 4-18. INSTALLING A WIDEBAND AC MODULE (OPTION -03) ... 4-11 4-19. CLEARING GHOST IMAGES FROM THE CONTROL DISPLAY . 4-11 4-20. REPLACING THE CLOCK/CALENDAR BACKUP BATTERY ... 4-12 4-22. Using the FATALITY? AND FATALCLR Commands ... 4-12 5 Troubleshooting ... 5-1 5-1. INTRODUCTION ... 5-3 5-2. Main CPU (A20) Power-up Tests ... 5-3 5-8. TEST STEP: AD8255 (A/D 8255) ... 5-6 5-10. TEST STEP: ADZEROS (A/D ZEROS) ... 5-6 5-11. TEST STEP: ADNULLDAC (A/D NULL DAC) ... 5-7 5-12. TEST STEP: ADDAC (A/D DAC OUTPUT) ... 5-7 5-13. TEST STEP: CHOPPER (A/D CHOPPER) ... 5-8 5-14. TEST STEP: PROT (PROTECTION) ... 5-8 5-15. TEST STEP: OVLD (OVERLOAD) ... 5-9 5-16. TEST STEP: ZEROS ... 5-9 5-17. TEST STEP: DIVIDERS (INPUT DIVIDERS) ... 5-9 5-18. TEST STEPS: X2_2V THROUGH X2_2MV ... 5-10 5-19. TEST STEP: MATCH (Sensor Match) ... 5-10 5-20. TEST STEP: XFREQ (FREQUENCY MEASURING) ... 5-11 5-21. TEST STEP: LOOPFILT (SENSOR FILTER) ... 5-11 5-21. TEST STEP: WOVLD (WIDEBAND OVERLOAD) ... 5-11 5-23. TEST STEPS: W7V THROUGH W2_2MV (WIDEBAND 2.2 mV RANGE) ... 5-11 5-24. TEST STEP: WFREQ (WIDEBAND FREQUENCY MEASURING) ... 5-12 5-25. TEST STEP: WLOOPFILT (WIDEBAND SENSOR FILTER) . 5-12 6 List of Replaceable Parts ... 6-1 6-1. INTRODUCTION ... 6-3 6-2. HOW TO OBTAIN PARTS ... 6-3 6-3. MANUAL STATUS INFORMATION ... 6-3 6-4. SERVICE CENTERS ... 6-3 7 Schematic Diagrams ... 7-1 8 Appendices ... 8-1 Appendix A ... 8-3 Appendix B ... 8-13

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manuel de réparation
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Manuel-ID:
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Information

This service manual is a maintenance guide for the 5790A, The following topics are included: • Theory of operation • Calibration • Performance testing • Access procedures • Troubleshooting • Parts lists • Schematic diagrams

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Manuel de l'utilisateur
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Manuel de l'utilisateur
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226
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1 Introduction and Specifications — 1-1 1-1. INTRODUCTION ... 1-3 1-2. Inside the 5790A ... 1-3 1-3. Measurement and Transfer Modes ... 1-3 1-4. An Overview of the Features ... 1-4 1-5. INSTRUCTION MANUALS ... 1-5 1-6. 5790A Operator Manual ... 1-5 1-7. 5790A Remote Programming Reference Guide ... 1-5 1-8. 5790A Service Manual ... 1-5 1-9. WIDEBAND MODULE (OPTION 5790A-03) ... 1-5 MO. CURRENT SHUNT ADAPTERS ... 1-5 1-11. WARRANTY AND SERVICE INFORMATION ... 1-6 1-12. SPECIFICATIONS ... 1-6 2 Installation ... 2-1 2-1, INTRODUCTION ... 2-3 2-2. UNPACKING AND INSPECTION ... 2-3 2-3. ENVIRONMENTAL AND INPUT REQUIREMENTS ... 2-4 2-4. COOLING CONSIDERATIONS ... 2-4 2-5. PLACEMENT AND RACK MOUNTING ... 2-5 2-6. ACCESSING THE FUSE ... 2-5 2-7. SELECTING LINE VOLTAGE ... 2-6 2-8. CONNECTING TO LINE POWER ... 2-6 3 Features ... —— ... — 3-1 3-1, INTRODUCTION ... 3-3 3-2. FRONT PANEL FEATURES ... 3-3 3-3, REAR PANEL FEATURES ... 3-3 4 Front Panel Operation ... 4-1 4-1. INTRODUCTION ... 4-3 4-2. TURNING ON THE 5790A ... 4-3 4-3. Power-Up State ... 4-3 4-4. Warmup Requirements 4-4 4-5. Calibrating DC Zeros 4-5 4-6. CONNECTING SOURCES TO THE 5790A ... 4-6 4-7. Test Leads and Connectors 4-6 4-8. COAXIAL INPUTS 4-6 4-9. DUAL BANANA INPUTS ... 4-6 4-10. Connecting the Guard and Ground Binding Posts ... 4-7 4-11. GUARD THEORY 4-7 4-12. INTERNAL GUARD CONNECTION ... 4-8 443. EXTERNAL GUARD CONNECTION ... 4-11 4-14. OPERATING INSTRUCTIONS FOR ALL MODES ... 4-11 4-15. Interpreting the Measurement Display ... 4-11 4-16. Using the Measurement Control Menu ... 4-13 4-17. DIGITAL FILTER MODE SOFTKEY ... 4-13 4-18. DIGITAL FILTER RESTART SOFTKEY ... 4-13 4-19. Hi Res SOFTKEY ... 4-14 4-20. Selecting Auto or Locked Range 4-14 4-21. Selecting Continuous or External (Single) Trigger ... 4-15 4-22. INSTRUCTIONS FOR MEASUREMENT MODE ... 4-15 4-23. INSTRUCTIONS FOR TRANSFER MODE ... 4-16 4-24. Measuring Frequency Flatness With the Wideband Option ... 4-16 4-25. Using the SHUNT Input for Relative Current ... 4-17 4-26. Choosing Delta Units ... 4-19 4-27. Establishing a Reference 4-19 4-28. USING THE TOP-LEVEL MENU KEYS ... 4-21 4-29. [VIEW REF] Key 4-21 4-30. [UTIL MENUS] Key ... 4-21 4-31. Checking Instalment Configuration 4-22 4-32. Setup Menu 4-24 4-33. FORMAT EEPROM MENU ... 4-24 4-34. SETTING THE INTERNAL CLOCK ... 4-25 4-35. [SPEC] Key 4-26 4-36. TECHNIQUES FOR REDUCING TRANSFER ERRORS ... 4-27 4-37. DC Reversal 4-27 4-38. Loading 4-27 4-39. Mechanical Contact 4-27 4-40. Thermal EMFs 4-27 4-41. EMI ... 4-28 5 Remote Operation ... ... 5-1 5-1. INTRODUCTION ... 5-3 5-2. USING THE IEEE-488 Interface FOR REMOTE CONTROL.. 5-3 5-3. IEEE-488 Bus Restrictions. ... 5-3 5-4. IEEE-488 Bus Setup Procedure 5-3 5-5. USING THE RS-232 Interface FOR REMOTE CONTROL ... 5-4 5-6. Serial Remote Control Setup Procedure ... 5-4 5-7. Exceptions for Serial Remote Control ... 5-6 5-9. Local State 5-6 5-10. Local with Lockout State 5-6 5-11. Remote State ... 5-7 5-12. Remote with Lockout State 5-7 5-13. COMMAND SYNTAX INFORMATION ... 5-8 5-14. Parameter Syntax Rules . 5-8 5-15. Extra Space or Tab Characters 5-9 5-16. Terminators . 5-9 5-17. Incoming Character Processing ... 5-18. Response Message Syntax 5-10 5-19. INPUT BUFFER OPERATION 5-10 5-20. USING COMMANDS 5-12 5-21. Multiple Commands 5-12 5-22. Sequential and Overlapped Commands ... 5-13 5-23. Commands That Require the CALIBRATION STORE or MODE Switch To Be Enabled ... 5-13 5-24. Long-Term Commands 5-13 5-25. CHECKING 5790A STATUS 5-13 5-26. Serial Poll Status Byte (STB) 5-14 5-27. SERVICE REQUEST LINE (SRQ) ... 5-14 5-28. SERVICE REQUEST ENABLE REGISTER (SRE) ... 5-14 5-29. PROGRAMMING THE STB AND SRE ... 5-14 5-30. Event Status Register (ESR) 5-16 5-31. EVENT STATUS ENABLE REGISTER (ESE) ... 5-16 5-32. BIT ASSIGNMENTS FOR THE ESR AND ESE ... 5-16 5-33. PROGRAMMING THE ESR AND ESE ... 5-16 5-34. Instrument Status Register (ISR) ... 5-17 5-35. INSTRUMENT STATUS CHANGE REGISTERS ... 5-18 5-36. INSTRUMENT STATUS CHANGE ENABLE REGISTERS ... 5-18 5-37. BIT ASSIGNMENTS FOR THE ISR, ISCR, AND ISCE ... 5-18 5-38. PROGRAMMING THE ISR, ISCR, and ISCE ... 5-19 5-39. Output Queue 5-19 5-40. Error Queue ... 5-1.9 5-41. IEEE-488 Interface CONFIGURATION ... 5-20 5-42. BUS COMMUNICATION OVERVIEW 5-20 5-43. Device-Dependent Commands 5-21 5-44. Common Commands 5-21 5-45. Interface Messages 5-21 5-46. Definition: Queries and Commands ... 5-21 5-47. Functional Elements of Commands 5-22 5-48. Interface Messages 5-22 5-49. REMOTE PROGRAM EXAMPLES 5-23 5-50. Writing an SRQ and Error Handler 5-23 5-51. Taking a Measurement 5-23 5-52. Efficiently Taking N Successive Readings ... 5-24 5-53. Locking the 5790A Range ... 5-24 5-54. Calibrating the 5790A Remotely 5-24 5-55. THE IEEE-488 CONNECTOR ... 5-25 6 Remote Commands ... 6-1 6-1. INTRODUCTION ... 6-3 6-2. ALPHABETICAL LIST OF IEEE-488.2 COMMON COMMANDS. 6-8 6-3. ALPHABETICAL LIST OF 5790A DEVICE-DEPENDENT COMMANDS .. 6-13 7 Using the RS-232 Serial Interface ... 7-1 7-1. INTRODUCTION ... 7-3 7-2. SERIAL Interface SPECIFICATIONS ... 7-4 7-4. PRINTING CALIBRATION REPORTS 7-5 7-5. Sample Measurement Shifts Report 7-6 . 7-6. Sample Calibration Constants Report 7-12 8 Operator Maintenance ... 8-1 ■8-1. INTRODUCTION ... 8-3 8-2. ACCESSING THE FUSE ... 8-3 8-3. CLEANING THE AIR FILTER ... 8-3 8-4. GENERAL CLEANING ... 8-4 8-5. CALIBRATION ... 8-4 9 Options and Accessories ... 9-1 9-1. INTRODUCTION ... 9-3 9-2. WIDEBAND MODULE (OPTION 5790A-03) ... 9-3 9-3. ACCESSORIES ... 9-3 9-4. Flute A40 and A40A Current Shunt Adapter (5790A-7001) ... 9-3 9-5. Fluke A4ÖA Current Shunt Adapter for Input 1 (792A-7004) ... 9-3 9-6. Low Thermal EMF Test Leads (5440A-7002) ... 9-4 9-7. Rack Mount Kit (Y5737) ... 9-4 9-8. Shielded IEEE-488 Interface Cables (Y8021, Y8022, and Y8023) ... 9-4 9-9. RS-232-C Null-Modern Cables (Y1702 and Y1703) ... 9-4 10 Appendices ... 10-1 Appendix A Glossary of AC-DC Transfer Related Terms ... 10-2 Appendix B ASCII and IEEE-488 Bus Codes ... 10-12 Appendix C Calibration Constant Information ... 10-14 Appendix D Service Centers ... 10-30 Appendix E 5790A Error Codes ... 10-34 Appendix F 5200A Verification and Calibration ... 10-39 Index

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