Fluke 5790B User manual

June 2015
© 2015 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.
5790B
AC Measurement Standard
Operators Manual
Via Acquanera, 29 22100 Como
tel. 031.526.566 (r.a.) fax 031.507.984
[e-mail] www.calpower.it

LIMITED WARRANTY AND LIMITATION OF LIABILITY
Each Fluke product is warranted to be free from defects in material and workmanship under normal use and
service. The warranty period is one year and begins on the date of shipment. Parts, product repairs, and
services are warranted for 90 days. This warranty extends only to the original buyer or end-user customer of
a Fluke authorized reseller, and does not apply to fuses, disposable batteries, or to any product which, in
Fluke's opinion, has been misused, altered, neglected, contaminated, or damaged by accident or abnormal
conditions of operation or handling. Fluke warrants that software will operate substantially in accordance
with its functional specifications for 90 days and that it has been properly recorded on non-defective media.
Fluke does not warrant that software will be error free or operate without interruption.
Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers
only but have no authority to extend a greater or different warranty on behalf of Fluke. Warranty support is
available only if product is purchased through a Fluke authorized sales outlet or Buyer has paid the
applicable international price. Fluke reserves the right to invoice Buyer for importation costs of
repair/replacement parts when product purchased in one country is submitted for repair in another country.
Fluke's warranty obligation is limited, at Fluke's option, to refund of the purchase price, free of charge repair,
or replacement of a defective product which is returned to a Fluke authorized service center within the
warranty period.
To obtain warranty service, contact your nearest Fluke authorized service center to obtain return
authorization information, then send the product to that service center, with a description of the difficulty,
postage and insurance prepaid (FOB Destination). Fluke assumes no risk for damage in transit. Following
warranty repair, the product will be returned to Buyer, transportation prepaid (FOB Destination). If Fluke
determines that failure was caused by neglect, misuse, contamination, alteration, accident, or abnormal
condition of operation or handling, including overvoltage failures caused by use outside the product’s
specified rating, or normal wear and tear of mechanical components, Fluke will provide an estimate of repair
costs and obtain authorization before commencing the work. Following repair, the product will be returned to
the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges
(FOB Shipping Point).
THIS WARRANTY IS BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE
FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OR LOSSES,
INCLUDING LOSS OF DATA, ARISING FROM ANY CAUSE OR THEORY.
Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or
limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not
apply to every buyer. If any provision of this Warranty is held invalid or unenforceable by a court or other
decision-maker of competent jurisdiction, such holding will not affect the validity or enforceability of any other
provision.
Fluke Corporation
P.O. Box 9090
Everett, WA 98206-9090
U.S.A.
Fluke Europe B.V.
P.O. Box 1186
5602 BD Eindhoven
The Netherlands
11/99

i
Table of Contents
Chapter Title Page
1 Introduction and Specifications......................................................... 1-1
Introduction............................................................................................ 1-1
How to Contact Fluke Calibration.......................................................... 1-2
Safety Information ................................................................................. 1-2
Symbols................................................................................................. 1-4
Measurement and Transfer Modes ....................................................... 1-4
An Overview of the Features................................................................. 1-5
Instruction Manuals ............................................................................... 1-6
5790B Operators Manual .................................................................. 1-6
5790B Service Manual ...................................................................... 1-6
Service Information ............................................................................... 1-6
Specifications ........................................................................................ 1-7
General Specifications .......................................................................... 1-8
Resolution and Range Limits ................................................................ 1-9
Electrical Specifications......................................................................... 1-9
Absolute AC Voltage ......................................................................... 1-9
Relative AC Voltage .......................................................................... 1-12
Absolute AC Non-sine Voltage .......................................................... 1-14
Absolute DC Voltage ......................................................................... 1-15
Relative DC Voltage .......................................................................... 1-15
Secondary Electrical Specifications....................................................... 1-16
AC Secondary Performance.............................................................. 1-16
DC Secondary Performance.............................................................. 1-18
Operating Characteristics .................................................................. 1-19
AUX Input Characteristics ................................................................. 1-20
Absolute Wideband Specifications (5790B/3, 5790B/5, and 5790B/AF) 1-20
2 Installation ........................................................................................... 2-1
Introduction............................................................................................ 2-1
Unpacking and Inspection ..................................................................... 2-1
Environmental and Input Requirements ................................................ 2-2
Placement and Rack Mounting.............................................................. 2-2
Cooling Considerations ......................................................................... 2-3
Grounding the Product .......................................................................... 2-3

5790B
Operators Manual
ii
Mains Voltage Selection........................................................................ 2-4
Connect to Mains Power ....................................................................... 2-5
3 Features ............................................................................................... 3-1
Introduction............................................................................................ 3-1
Front Panel Features............................................................................. 3-1
Rear Panel Features ............................................................................. 3-4
4 Front Panel Operation......................................................................... 4-1
Introduction............................................................................................ 4-1
Turning on the Product.......................................................................... 4-1
Power-Up State ................................................................................. 4-2
Warmup Requirements...................................................................... 4-2
Calibrating DC Zeros ......................................................................... 4-3
Setup Menu ........................................................................................... 4-4
Setup Menu Softkey .......................................................................... 4-4
Checking Instrument Configuration ................................................... 4-5
System Settings Menu....................................................................... 4-5
Setting the Internal Clock/Calendar................................................... 4-6
Instrument Specification .................................................................... 4-7
Connecting Sources to the Product....................................................... 4-7
Test Leads and Connectors .............................................................. 4-8
Coaxial Inputs................................................................................ 4-8
Dual Binding Inputs ....................................................................... 4-8
Connecting the Guard and Ground Binding Posts ............................ 4-9
Guard Theory ................................................................................ 4-10
Guard Connection ......................................................................... 4-10
External Guard Connection ........................................................... 4-12
Basic Operation..................................................................................... 4-13
Interpreting the Display...................................................................... 4-13
Digital Filter Mode.............................................................................. 4-14
Hi Res Mode...................................................................................... 4-16
Statistics ............................................................................................ 4-17
Current Shunt Function ..................................................................... 4-18
Peak-to-Peak Function ...................................................................... 4-18
Selecting Auto or Locked Range ....................................................... 4-19
Selecting Continuous or External (Single) Trigger ............................ 4-20
Instructions for Voltage Measurements................................................. 4-20
Measurement Mode........................................................................... 4-20
Transfer Mode ................................................................................... 4-21
Establish a Reference ....................................................................... 4-24
View Reference Softkey .................................................................... 4-24
Choose Delta Units............................................................................ 4-24
Instructions for Current Measurements ................................................. 4-25
Current Measurements with the Fluke A40B..................................... 4-25
Overview........................................................................................ 4-25
Connect an A40B .......................................................................... 4-26
Set Up a Fluke A40B Shunt........................................................... 4-27
Measure with a Fluke A40B Shunt ................................................ 4-27
Current Measurements with an A40, A40A, or Custom
Current Shunt .................................................................................... 4-28
Overview........................................................................................ 4-28
Connect an A40/A40A or Custom Shunt to INPUT 1 .................... 4-28
Connect an A40/A40A to the AUX Input........................................ 4-29

Contents (continued)
iii
Set up a Fluke A40/A40A or Custom Current Shunt ..................... 4-30
Measure with a Fluke A40, A40A or Custom Shunt ...................... 4-31
Instructions for Wideband Measurements............................................. 4-31
Techniques for Reducing Transfer Errors ............................................. 4-32
DC Reversal ...................................................................................... 4-32
Loading.............................................................................................. 4-33
Mechanical Contact ........................................................................... 4-33
Thermal EMFs ................................................................................... 4-33
EMI .................................................................................................... 4-34
5 Remote Operation ............................................................................... 5-1
Introduction............................................................................................ 5-1
Using the IEEE-488 Interface for Remote Control................................. 5-1
IEEE-488 Bus Restrictions ................................................................ 5-2
IEEE-488 Bus Setup Procedure ........................................................ 5-2
IEEE-488 Interface Configuration...................................................... 5-3
Bus Communication Overview .......................................................... 5-3
RS-232 Serial Interface ......................................................................... 5-4
RS-232 Interface Specifications ........................................................ 5-4
Set Up and Connect the Serial Interface ........................................... 5-5
Serial Remote Control Setup Procedure ........................................... 5-6
Exceptions for Serial Remote Control ............................................... 5-6
Ethernet Interface.................................................................................. 5-7
Set Up and Connect the Ethernet Interface....................................... 5-7
Set the IP Address............................................................................. 5-8
Select the Dynamic Host Configuration Protocol (DHCP) ................. 5-8
Set a Static Internet Address............................................................. 5-8
Configure the General Network Socket Port ..................................... 5-9
Configure the LAN Default Gateway ................................................. 5-9
Set the LAN Subnet Mask ................................................................. 5-10
Read the MAC Address..................................................................... 5-10
Establish an Ethernet Connection ..................................................... 5-10
Terminate an Ethernet Connection.................................................... 5-11
Use of Ethernet Remote Control ....................................................... 5-11
USB 2.0 Remote Control....................................................................... 5-11
6 Remote Commands............................................................................. 6-1
Introduction............................................................................................ 6-1
Parameter Syntax Rules.................................................................... 6-1
Extra Space or Tab Characters ......................................................... 6-2
Terminators ....................................................................................... 6-2
Incoming Character Processing ........................................................ 6-3
Response Message Syntax............................................................... 6-3
Input Buffer Operation ........................................................................... 6-3
Using Commands.................................................................................. 6-5
Multiple Commands........................................................................... 6-5
Sequential and Overlapped Commands............................................ 6-5
Calibration Security Passcode........................................................... 6-6
Long-Term Commands...................................................................... 6-6
Definition: Queries and Commands................................................... 6-7
Functional Elements of Commands................................................... 6-7
Interface Messages (IEEE-488 Only) ................................................ 6-9
Use of *OPC?, *OPC, and *WAI............................................................ 6-10
Alphabetical List of IEEE-488.2 Common Commands .......................... 6-18

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Operators Manual
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Alphabetical List of 5790B Device-Dependent Commands................... 6-24
Local-to-Remote State Transitions........................................................ 6-71
Checking Product Status....................................................................... 6-72
Status Byte Register (STB) ............................................................... 6-75
Service Request Line (SRQ) ......................................................... 6-76
Service Request Enable Register (SRE)....................................... 6-76
Programming the SRE................................................................... 6-76
Event Status Register (ESR) ............................................................. 6-76
Event Status Enable Register (ESE) ............................................. 6-76
Bit Assignments for the ESR and ESE .......................................... 6-77
Read the ESR and ESE ................................................................ 6-77
Load the ESE ................................................................................ 6-77
Instrument Status Register (ISR)....................................................... 6-77
Instrument Status Change Registers............................................. 6-78
Instrument Status Change Enable Registers ................................ 6-78
Bit Assignments for the ISR, ISCR, and ISCE............................... 6-78
Read the ISR, ISCR, or ISCE........................................................ 6-79
Output Queue .................................................................................... 6-79
Error Queue....................................................................................... 6-79
7 Operator Maintenance ........................................................................ 7-1
Introduction............................................................................................ 7-1
Fuse Replacement ................................................................................ 7-1
Clean the Air Filter................................................................................. 7-3
General Cleaning .................................................................................. 7-4
User-Replaceable Parts ........................................................................ 7-5
Calibration ............................................................................................. 7-6
Calibration Reports............................................................................ 7-6
Save Calibration Reports................................................................... 7-6
Appendices
A Error Codes ..................................................................................... A-1
B Calibration Constant Information ..................................................... B-1

v
List of Tables
Table Title Page
1-1. Symbols..................................................................................................... 1-4
2-1. Standard Equipment.................................................................................. 2-2
2-2. Line Power Cord Types Available from Fluke ........................................... 2-4
3-1. Front Panel Features................................................................................. 3-2
3-2. Rear Panel Features ................................................................................. 3-5
4-1. Power-Up State Defaults and Volatility ..................................................... 4-2
4-2. Non-volatile Setup Parameter Factory Defaults ........................................ 4-3
4-3. Input Test Lead Summary ......................................................................... 4-8
4-4. Input Impedance Summary ....................................................................... 4-9
4-5. Measurement Display Amplitude Resolution............................................. 4-16
5-1. Supported IEEE-488 Interface Function Subsets...................................... 5-3
5-2. RS-232 Interface Parameter Choices ....................................................... 5-4
6-1. Units Accepted in Parameters and Used in Responses............................ 6-2
6-2. Response Data Types............................................................................... 6-4
6-3. Functional Elements of Commands .......................................................... 6-8
6-4. Interface Messages Accepted by the Product........................................... 6-9
6-5. Interface Messages Sent by the Product .................................................. 6-10
6-6. Command Summary ................................................................................. 6-11
6-7. Operating State Transitions....................................................................... 6-72
6-8. Status Register Summary ......................................................................... 6-73
6-9. Status Byte and SRE Bit Definitions.......................................................... 6-75
6-10. Bit Assignments for ESR and ESE............................................................ 6-77
6-11. Bit Assignments for the ISR, ISCEs and ISCRs........................................ 6-78
7-1. Replacement Fuses .................................................................................. 7-2
7-2. User-Replaceable Parts ............................................................................ 7-5

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Operators Manual
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vii
List of Figures
Figure Title Page
2-1. Line Power Cord Types Available from Fluke ........................................... 2-4
2-2. Line Power Label and Switch Location ..................................................... 2-5
3-1. Front Panel................................................................................................ 3-1
3-2. Rear Panel ................................................................................................ 3-4
4-1. Recommended Test Lead Connections to Test a Voltmeter..................... 4-11
4-2. Recommended Test Lead Connections to Test a Source......................... 4-12
4-3. Measuring Absolute Current Using A40B.................................................. 4-26
4-4. Measuring Relative Current Using 792A-7004.......................................... 4-28
4-5. Measuring Relative Current Using 5790A-7001........................................ 4-29
6-1. Status Register Overview.......................................................................... 6-74
7-1. Accessing the Fuse ................................................................................... 7-2
7-2. Accessing the Air Filter.............................................................................. 7-4

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Operators Manual
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