Equipment information:

Fluke 5790A Level Generator
Manufacturer:
Fluke
Model: 5790A
Date: 1992
Category: Measurement instruments
Group: Level Generator
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.

These manuals are available for the above equipment:

Fluke -- 5790A -- Service Manual
File name: Fluke-4779-Manual-Page-1-Picture
Manual Type: Service Manual
Pages: 354
Size: 7.98 Mbytes (8371092 Bytes)
Language: english
Revision: 5
Manual-ID/Number: PN 893292
Date: January 2007
Quality: Electronic document, no scan, very well readable.
Upload date:
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ed2kID: 50fa0f8c613e29efee08f6fead342cd6
Downloads: 105 since 05 November 2013
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
Fluke-4779-Manual-Page-1-Picture
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Fluke -- 5790A -- User Manual
File name: Fluke-7692-Manual-Page-1-Picture
Manual Type: User Manual
Pages: 226
Size: 8.28 Mbytes (8686977 Bytes)
Language: english
Revision: 3
Manual-ID/Number: 893284
Date: October 1994
Quality: Scanned document, all readable.
Upload date:
MD5: f554376e51abca334032693b0f033937
ed2kID: 72d5bfce08eb6f2c650a21015a774007
Downloads: 15 since 06 February 2016
Information:
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
5-8. CHANGING BETWEEN REMOTE AND LOCAL OPERATION... 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.................... 7-3
7-3. SETTING UP AND CONNECTING THE SERIAL INTERFACE... 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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