Index

If you have questions relating to the operation of the multimeter, call 1-800-452-4844in the United States, or contact your nearest Agilent Sales Office.

“1⁄2” digit, 21, 54 2-wire ohms

See two-wire ohms 34398A Cable Kit, 149 34399A Adapter Kit, 149 3478A compatibility, 166 34812A BenchLink Software, 1 4-wire ohms

See four-wire ohms “9.90000000E+37”, 61, 131

A

a/d convertor, 55, 57 abort measurement, 76

ac bandwidth detector, 51, 214 ac current

connections, 18

math functions allowed, 63, 124 ranges, 18

signal filter, 51, 214 ac settling times, 51 ac signal filter, 51, 214 ac voltage

connections, 17 loading errors, 209

math functions allowed, 63, 124 ranges, 17

signal filter, 51, 214 accessories included, 13, 222 accuracy, highest, 229 adapters (RS-232), 149 address, GPIB, 91, 161

addressed commands (IEEE-488), 169 Agilent Express, 6

alternate language compatibility Agilent 3478A, 166

Fluke 8840A/8842A, 167 annunciators, 4 aperture time, 58 automatic trigger delays, 81 autoranging

front-panel key, 20 threshold values, 20, 61

auto trigger, 42, 73 autozero

definition, 59, 213

vs. integration time, 59 vs. resolution, 59

average (min-max) measurements beeper control, 88 description, 39, 64 front-panel, 39

functions allowed, 63, 124

B

bandwidth detector, 51, 214 bandwidth error, 208 baud rate, 93, 148, 151, 163 beeper

continuity threshold, 19 diode threshold, 19 enable/disable, 88

BenchLink software (34812A), 1 BNC connectors

Ext Trig, 5, 83

VM Comp, 5, 83

boolean parameters, 159 bumpers, removing, 23 burden voltage, 205, 212 bus triggering, 75, 127

C

cables (RS-232), 150

CALCulate:FUNCtion, 63, 124 CALCulate:STATe, 63, 124 CALibration:COUNt?, 98, 146 CALibration:SECure, 97, 146 CALibration:STRing, 99, 147 calibration

changing security code, 98 commands, 146

count, 98 errors, 180 message, 99 secure procedure, 97

security code, factory setting, 95 unsecure procedure, 96

carrying handle adjusting, 16 removing, 23 chassis ground, 5

CLEAR, 76

comma separator, 37, 89

command

compliance (SCPI), 168 summary, 105-111

syntax conventions, 50, 105, 155 common commands, 169 common mode rejection (CMR), 201 complete self-test, 13, 86 CONFigure, 113, 119

preset state, 110 Conformity, Declaration, 237 connections

2-wire ohms, 17

4-wire ohms, 17 ac current, 18 ac volts, 17 continuity, 19 dc current, 18 dc volts, 17 dcv:dcv ratio, 44 diode, 19 frequency, 18 period, 18

connectors Ext Trig, 5, 83 GPIB interface, 5 RS-232 interface, 5 VM Comp, 5, 83

continuity connections, 19 current source, 19

math functions allowed, 63, 124 threshold resistance, 52

crest factor error, 207, 224 current

ac current connections, 18

math functions allowed, 63, 124 ranges, 18

signal filter, 51, 214 dc current

connections, 18

math functions allowed, 63, 124 measurement errors, 205 ranges, 18

current input fuses, replacing, 100 current source

continuity, 19 diode, 19

Index

231

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Agilent Technologies 34401A manual Index, Ext Trig, 5 VM Comp, 5
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34401A specifications

Agilent Technologies 34401A is a highly reputable digital multimeter (DMM), renowned for its accuracy, versatility, and performance in a wide range of measurement applications. First introduced in the early 1990s, the 34401A has become a staple in laboratories, manufacturing environments, and educational institutions due to its robust build and comprehensive features.

One of the standout characteristics of the 34401A is its impressive accuracy, boasting a basic DC voltage accuracy of 0.0035%, making it ideal for precise measurements in electronic testing. The multimeter offers a wide range of measurement capabilities, including voltage (DC and AC), current (DC and AC), resistance, frequency, and continuity test, making it a highly versatile tool for engineers and technicians.

The 34401A utilizes a 6½-digit resolution, enabling the user to measure small changes in electrical signals with remarkable precision. With a sampling rate of up to 1000 readings per second, it can handle dynamic test requirements, providing timely results without sacrificing measurement integrity.

In terms of connectivity, the Agilent 34401A includes a GPIB (General Purpose Interface Bus) for remote operation, allowing users to automate their testing processes and integrate the multimeter easily into larger measurement systems. This feature is particularly beneficial in automated test environments, where speed and accuracy are paramount.

Additionally, the DMM incorporates advanced measurement functions, such as statistical analysis, including mean, standard deviation, and minimum/maximum readings, which provide users with valuable insights into their data. The instrument's user-friendly interface, complete with a clear digital display and intuitive controls, enhances usability and ensures that users can easily navigate its various functions.

Robust software support further extends the capabilities of the Agilent 34401A. It is compatible with a range of software tools for data logging and analysis, enabling users to efficiently document and analyze their measurements over time.

In summary, Agilent Technologies 34401A stands out in the realm of digital multimeters due to its high accuracy, extensive measurement functionalities, and user-friendly features. Whether for research and development, quality control, or educational purposes, the 34401A remains a preferred choice for professionals demanding reliable and precise measurement solutions. Its enduring legacy in the industry speaks to its performance and reliability, making it an essential tool for anyone involved in electronic testing and measurement.
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