Chapter 3 Features and Functions

Measurement Configuration

Measurement Configuration

This section contains information to help you configure the multimeter for making measurements. You may never have to change any of the measurement parameters discussed here, but they are provided to give you the flexibility you might need.

AC Signal Filter

The multimeter uses three different ac filters which enable you to either

optimize low frequency accuracy or achieve faster ac settling times. 3 The multimeter selects the slow, medium, or fast filter based on the

input frequency that you specify.

Applies to ac voltage and ac current measurements only.

Input

 

Frequency

AC Filter Selected

Settling Time

 

 

 

 

 

3 Hz

to

300 kHz

Slow filter

7 seconds / reading

20 Hz

to

300 kHz

Medium filter (default)

1 reading / second

200 Hz

to

300 kHz

Fast filter

10 readings / second

 

 

 

 

 

 

•The ac filter selection is stored in volatile memory; the multimeter selects the medium filter (20 Hz) when power has been off or after a remote interface reset.

•Front-Panel Operation: Select from the menu the slow filter (3 Hz), medium filter (20 Hz), or fast filter (200 Hz). The default is the medium filter.

1:AC FILTER (MEAS MENU)

•Remote Interface Operation: Specify the lowest frequency expected in the input signal. The multimeter selects the appropriate filter based on the frequency you specify (see table above). The CONFigure and MEASure? commands select the 20 Hz filter.

DETector:BANDwidth {320200MINimumMAXimum}

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Agilent Technologies 34401A manual Measurement Configuration, AC Signal Filter, AC Filter Meas Menu
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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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