Keysight Truevolt Series Service manual

Operating and
Service Guide
Keysight Truevolt Series
Digital Multimeters

Notice: This document contains references to Agilent Tech-
nologies. Agilent's former Test and Measurement business
has become Keysight Technologies. For more information,
go to www.keysight.com.

Safety and Regulatory Information 11
Notices 11
Manual Information 11
Software Revision 11
Warranty 11
Technology Licenses 11
Restricted Rights Legend 12
Safety Notices 13
Safety Symbols 13
Safety Information 14
General 14
Measurement Limits 16
Input Terminal Measurement Limits 18
Sense Terminal Measurement Limits 18
IEC Measurement Category II 19
Keysight 34138A Test Lead Set 19
Test Lead Ratings 19
Operation 19
Maintenance 19
Declaration of Conformity 20
Welcome 21
Introductory Information 21
User Information 21
SCPI Programming Reference 22
Service and Repair 22
Performance Verification 22
Calibration Procedures 22
Introduction to the Instrument 23
Instrument at a Glance 23
Display – Easily display, save and document your measurement results 23
Measurements – Keysight’s Truevolt measurement performance with modern I/O accessibility 23
Programming Language 23
Front Panel at a Glance 24
Front Panel Keys 24
Rear Panel at a Glance 25
Models and Options 26
Options Installed at Factory 26
Options Installed by Distributor or End Customer 26
Remote Interface Configuration 27
Connectivity Software 27
GPIB Configuration 27
LAN Configuration 28
Web Interface 31
LAN Configuration Procedure 32
More about IP Addresses and Dot Notation 33
Firmware Update 34
Contacting Keysight Technologies 35
Quick Start 36
Prepare Instrument for Use 36
Setting the AC Mains Line Voltage Selector and Fuse Installation 37
Connect Power and I/O Cables 39
4Keysight Truevolt Series Operating and Service Guide

Adjust the Carrying Handle 40
Use Built-in Help System 41
View the help information for a front panel key 41
View the list of help topics and use interactive demos 42
View the list of recent instrument errors. 43
View the help information for displayed messages. 43
Rack Mount the Instrument 44
Removing the Handle and Bumpers 44
Rack Mounting a Single Instrument 44
Rack Mounting Instruments Side-by-Side 44
Sliding Support Shelf 45
Features and Functions 46
Continuous, Data Log, and Digitize Modes 47
Continuous Mode 47
Data Log Mode 47
Digitize Mode 47
Data Log and Digitize Mode Default Settings 48
Additional Data Log Default Settings 48
Additional Digitize Default Settings 49
Front Panel Menu Reference 50
[Acquire] key 54
[Math] key 54
[Display] key 54
[Utility] key 55
Measurements 56
DC Voltage 57
AC Voltage 60
DC Current 62
AC Current 64
Resistance 66
Temperature (34460A and 34461A) 69
Temperature (34465A and 34470A) 71
Capacitance 76
Continuity 77
Diode 78
Frequency and Period 79
Data Logging 81
Digitizing 86
Level Triggering 91
Secondary Measurements 93
Triggering and Readings 95
Instrument trigger model 95
Trigger delay and multiple samples 97
Storing and clearing readings 98
Probe Hold 100
Math - Introduction 101
Math - Null 102
Math - dB/dBm Scaling 103
Math - Scaling 105
Math - Smoothing 108
Math - Statistics 109
Math - Limits 110
Keysight Truevolt Series Operating and Service Guide 5

Display - Introduction 114
Selecting the Display 114
Number 116
Bar Meter 121
Trend Chart (Continuous Measurement Mode) 124
Trend Chart (Digitize and Data Log Modes) 127
Histogram 133
Utility Menu - Introduction 138
Utility - Autocalibration (34465A/70A only) 139
Utility - Store and Recall State and Preference Files 140
Utility Menu - Manage Files 142
Utility Menu - I/O Configuration 144
Utility Menu - Test/Admin 147
Utility Menu - System Setup 149
Web Interface 152
Welcome Page 152
Instrument Monitor and Control Page 153
Configuration Page 157
Help 158
Measurement Tutorial 159
Measurement Considerations 160
Metrology 161
DC Measurement Considerations 162
Thermal EMF Errors 162
Loading Errors (DC Voltage) 162
Noise Rejection 163
Rejecting Power–Line Noise Voltages 163
Common Mode Rejection (CMR) 163
Noise Caused by Magnetic Loops 163
Noise Caused by Ground Loops 164
Resistance Measurement Considerations 165
Removing Test Lead Resistance Errors 165
Minimizing Power Dissipation Effects 166
Errors in High Resistance Measurements 166
True RMS AC Measurements 167
True RMS Accuracy and High–Frequency Signal Content 168
Estimating High–Frequency (Out–of–Band) Error 169
Other Primary Measurement Functions 171
Frequency and Period Measurement Errors 171
DC Current 171
Temperature Measurements 172
NULL Reading 173
Autozero On/Off 173
Making High–Speed AC Measurements 173
Making High–Speed DC and Resistance Measurements 174
Capacitance 175
Capacitance Measurement Considerations 176
Digitizing Measurements 177
The Sampling Rate 177
Level Triggering 178
About Digitize Mode 178
Data Log and Digitizing Local Remote Interaction 180
6Keysight Truevolt Series Operating and Service Guide

Data Log Mode 181
Data Log Mode Features 181
Data Logging and the Trend Chart Display 185
Data Log and Digitizing Local Remote Interaction 186
Level Triggering 187
About Level Trigger 187
Other Sources of Measurement Error 189
Settling Time Effects 189
Loading Errors (AC volts) 189
Measurements Below Full Scale 190
High-Voltage Self-Heating Errors 190
AC Current Measurement Errors (Burden Voltage) 190
Low–Level Measurement Errors 191
Common Mode Errors 191
Leakage Current Errors 192
Unnecessary Signal Errors 192
How Sample Rate/Interval is Determined 193
SCPI Programming Reference 194
Related Information 194
IO Libraries and Instrument Drivers 194
Keysight Truevolt Series Documentation 194
Web Interface 194
Introduction to the SCPI Language 195
Syntax Conventions 195
Command Separators 196
Using the MIN, MAX and DEF Parameters 196
Querying Parameter Settings 196
SCPI Command Terminators 197
IEEE-488.2 Common Commands 197
SCPI Parameter Types 197
Using Device Clear 199
Commands by Subsystem 199
ABORt 201
FETCh? 202
INITiate[:IMMediate] 203
OUTPut:TRIGger:SLOPe {POSitive|NEGative}OUTPut:TRIGger:SLOPe? 204
R? [<max_readings>] 205
READ? 206
ROUTe:TERMinals? 207
TEST:ALL? 208
UNIT:TEMPerature {C|F|K}UNIT:TEMPerature? 209
CALCulate Subsystem Introduction 210
CALibration Subsystem 237
CONFigure Subsystem 243
DATA Subsystem 256
DISPlay Subsystem 259
FORMat Subsystem 261
HCOPy Subsystem 263
IEEE 488.2 Common Commands 264
LXI Subsystem 277
MEASure Subsystem 280
MMEMory Subsystem - General Purpose File Management 291
Keysight Truevolt Series Operating and Service Guide 7

MMEMory Subsystem - STATe and PREFerence Files 296
MMEMory Subsystem - Data Transfer Commands 301
SAMPle Subsystem 306
SENSe Subsystem Introduction 313
STATus Subsystem 386
SYSTem Subsystem - General Purpose Commands 392
SYSTem Subsystem - I/O Configuration 405
SYSTem Subsystem LOCK Commands 419
SYSTem Subsystem LICense Commands 422
TRIGger Subsystem 427
Command Quick Reference 434
Configuration Commands 434
Measurement Commands 434
Measurement Configuration Commands 434
Sample Commands 441
Triggering Commands 441
Calculation (Math) Commands 442
Reading Memory Commands 444
Calibration Commands 445
State Storage and Preferences Commands 445
General Purpose File Management Commands 446
Data Transfer Commands 447
IEEE-488 Commands 447
Format Subsystem 448
System-Related Commands 448
Interface Locking Commands 449
License Management Commands 450
Interface Configuration Commands 450
Status System Commands 451
Range, Resolution and Integration Time (shown in Aperture and NPLCs) 452
Resolution and Integration Time for DC Measurements 455
Automatic Trigger Delays 456
DC Voltage Default Delays 456
DC Current Default Delays 456
Resistance (2-wire) Default Delays 457
Resistance (4-wire) Default Delays 457
AC Voltage Default Delays 457
AC Current Default Delays 458
Frequency and Period 458
VM Comp Output (BNC) 459
SCPI Error Messages 460
Command Errors (-100…) 462
Execution Errors (-200…) 464
Device-Specific Errors (-300…) 467
Query Errors (-400…) 467
Network Errors (+100...) 467
Instrument Errors (+200…) 468
Miscellaneous Errors (+300... and +500..) 468
Licensing and Self-test Errors (+600...) 469
Calibration Errors (+700...) 471
Miscellaneous Errors (+800...) 473
Power-On and Reset State 474
Factory Default Settings 474
8Keysight Truevolt Series Operating and Service Guide

Service and Repair 477
Types of Service Available 477
Obtaining Repair Service (Worldwide) 477
Repackaging for Shipment 478
Cleaning 478
Electrostatic Discharge (ESD) Precautions 478
Power Supplies 479
Troubleshooting 482
Troubleshooting Procedure 483
Self-Test Procedures 486
Power-On Self-Test 486
Full Self-Test 486
User Replaceable Parts 487
Disassembly 488
Tools Required 488
General Disassembly Procedure 489
Battery Replacement 492
Tools Required 492
Procedure 493
3 A and 10 A Current Path Fuse Replacement 494
Tools Required 494
Testing the Fuses 495
Internal Fuse Replacement Procedure 496
Installing the Optional GPIB Interface 497
Tools Required 497
Installation Procedure 497
Retain GPIB Cover Plate 497
Security Code Override 499
Which Procedure Should I Use? 499
Procedure A: For Firmware Revision Ending in 02, or Greater 500
Procedure B: For Firmware Revision Ending in 01 502
Performance Verification 503
Quick Performance Check 504
Performance Verification Tests 505
Recommended Test Equipment 505
Zero Offset Verification 506
DC Volts and DC Current Gain Verification 510
Frequency Accuracy Verification 515
AC Voltage and AC Current Verification 516
High Current Verification 521
Capacitance Verification (Optional Verification Test) 522
Calibration Adjustment Procedures 523
Calibration Procedures 524
Input Connections 525
Test Considerations 525
Recommended Test Equipment 526
Calibration Adjustment Process 527
Gain Calibration Adjustment Overview 528
Gain and Flatness Calibration Adjustment Overview 529
Entering Calibration Values and Storing Calibration Constants 530
Calibration Security 531
Keysight Truevolt Series Operating and Service Guide 9

Calibration Message 532
Calibration Count 533
Aborting a Calibration in Progress 534
Security Code Override 535
34460A and 34461A Calibration Procedures 540
ADC and Zero Calibration 541
AC Voltage Low Frequency Gain and Flatness Calibration 543
AC Voltage Gain and Flatness Calibration 544
AC Current Gain and Flatness Calibration 545
AC Zero Calibration 546
Frequency Accuracy Calibration 547
DC Voltage Gain Calibration 548
Ohms Gain Calibration 549
DC Current Gain Calibration 550
AC Current 10 A Gain Calibration 551
DC Current 10 A Gain Calibration 552
Capacitance Offset Calibration (Optional) 553
Finishing Calibration 554
34465A and 34470A Calibration Procedures 555
ADC and Zero Calibration 556
AC Voltage Low Frequency Gain and Flatness Calibration 558
AC Voltage Gain and Flatness Calibration 559
AC Current Gain and Flatness Calibration 560
AC Zero Calibration 561
Frequency Accuracy Calibration 562
DC Voltage Gain Calibration 563
Ohms Gain Calibration 564
DC Current Gain Calibration 565
DC High Voltage Gain Calibration 566
AC Current 10 A Gain Calibration 567
DC Current 10 A Gain Calibration 568
Capacitance Offset Calibration (Optional) 569
Finishing Calibration 570
Index 571
10 Keysight Truevolt Series Operating and Service Guide

Safety and Regulatory Information
Notices
© Keysight Technologies, Inc. 2013 - 2018
No part of this manual may be reproduced in any form or by any means (including electronic storage and
retrieval or translation into a foreign language) without prior agreement and written consent from Key-
sight Technologies, Inc. as governed by United States and international copyright laws.
Manual Information
Part Number: 34460-90901, Edition 6, ( November 27, 2018)
Keysight Technologies, Inc.
900 S. Taft Ave.
Loveland, CO 80537 USA
Software Revision
For the latest firmware, go to the product page at www.keysight.com/find/truevolt.
The latest product documentation is available at www.keysight.com/find/truevolt-doc. For doc-
umentation for mobile devices, see www.keysight.com/find/truevolt-mobilehelp.
A portion of the software in this product is licensed under terms of the General Public License Version 2
("GPLv2"). The text of the license and source code can be found at www.keysight.com/find/GPLV2.
This product uses Microsoft Windows CE. Keysight highly recommends that all Windows-based com-
puters connected to Windows CE instruments use current anti-virus software. For more information, see
www.keysight.com/find/truevolt.
Warranty
The material contained in this document is provided "as is," and is subject to being changed, without
notice, in future editions. Further, to the maximum extent permitted by applicable law, Keysight disclaims
all warranties, either express or implied, with regard to this manual and any information contained herein,
including but not limited to the implied warranties of merchantability and fitness for a particular purpose.
Keysight shall not be liable for errors or for incidental or consequential damages in connection with the fur-
nishing, use, or performance of this document or of any information contained herein. Should Keysight
and the user have a separate written agreement with warranty terms covering the material in this doc-
ument that conflict with these terms, the warranty terms in the separate agreement shall control.
Technology Licenses
The hardware and/or software described in this document are furnished under a license and may be used
or copied only in accordance with the terms of such license.
Keysight Truevolt Series Operating and Service Guide 11
Safety and Regulatory Information