233

Index

gate time, 58 GPIB (IEEE-488)

address

displayed at power-on, 13 factory setting, 91 setting the, 91, 161 TALK ONLY mode, 91, 160

compliance information, 168 connector location, 5 selecting interface, 92, 162

ground, chassis, 5 ground loop noise, 202

Group Execute Trigger (GET), 75

“half” digit, 21, 54

hardware lines (IEEE-488), 169 handle

adjusting, 16 removing, 23

hardware, rack mounting, 24 hardware handshake (RS-232), 151 HP-IB (See GPIB)

identification string, 89 idle trigger state, 76, 129 *IDN?, 89

IEEE-488 (GPIB) address

displayed at power-on, 13 factory setting, 91 setting the, 91, 161 TALK ONLY mode, 91, 160

compliance information, 168 connector location, 5 selecting interface, 92, 162

induced voltages, 201 INITiate, 115, 130 input bias current, 199 INPut:IMPedance:AUTO, 53, 123 input message terminators, 157 input resistance, dc volts, 53 input signal range

frequency, 18 period, 18

input terminals Front/Rear switch, 2, 58 query setting, 58

input message terminators, 157 integration time

definition, 57

vs. autozero, 59, 60

vs. resolution, 54, 57, 59 interface (remote)

GPIB connector, 5 GPIB selection, 92, 162 language restrictions, 92, 94 RS-232 connector, 5, 150 RS-232 selection, 92, 162

internal reading memory functions allowed, 46, 84 number of readings stored, 84 retrieving readings, 46 storing readings, 46

internal triggering, 75

L1, L2, L3, 94, 166 language

command summary, 105-111 compatibility, 166 compliance (SCPI), 168 restrictions, 92, 94 selecting, 94, 162

lead resistance, 38, 65, 204 leakage current errors, 199 limit test

beeper control, 88 description, 69 functions allowed, 63, 124 RS-232 pass/fail outputs, 70 service request, 69, 142

line frequency noise, 57 line voltage

factory setting, 14 selector module, 15 setting the, 15

loading errors ac volts, 209 dc volts, 53, 199

lock-link kit, 24

magnetic loops, 201 maintenance, 100 manual range, 20, 61 math operations

description, 63, 124 functions allowed, 63, 124

MEASure?, 113, 117 preset state, 112 measurement band

frequency, 18 period, 18

measurement errors, 224 measurement function

math combinations allowed, 63, 124 measurement range

autoranging, 20, 61 front-panel keys, 20 overload, 61, 142 selecting, 20

measurement ranges 2-wire ohms, 17 4-wire ohms, 17 ac current, 18

ac volts, 17 dc current, 18 dc volts, 17 dcv:dcv ratio, 44 frequency, 18 period, 18

measurement resolution front-panel keys, 21 “half” digit, 21, 54 setting, 21

power line cycles, 54 vs. autozero, 59

vs. integration time, 54 measurement terminals Front/Rear switch, 2, 58

query setting, 58 measurement tutorial, 197 medium ac filter, 51, 214 memory, internal

functions allowed, 46, 84 number of readings stored, 84 retrieving readings, 46 storing readings, 46

Index

233 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.

Agilent Technologies 34401A manual 233

Models: 34401A

Index

34401A specifications