Agilent Technologies Switch/Measure Frequency Measurement Configuration, Low Frequency Timeout

Models: Switch/Measure

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Features and Functions

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Frequency Measurement Configuration

This section contains information to help you configure the instrument for making frequency measurements.

Low Frequency Timeout

The instrument uses three different timeout ranges for frequency measurements. The instrument selects the slow (3 Hz), medium (20 Hz), or fast (300 Hz) filter based on the input frequency that you specify with this command for the selected channels.

Applies to frequency measurements only.

Low frequency timeout

Input Frequency

Timeout

 

 

3 Hz to 300 kHz (Slow)

1 second

20 Hz to 300 kHz (Medium)

100 ms

200 Hz to 300 kHz (Fast)

10 ms

 

 

The CONFigure and MEASure? commands automatically select the 20 Hz (medium) filter.

The instrument selects the default 20 Hz (medium) filter after a Factory Reset (*RST command). An Instrument Preset (SYSTem:PRESet command) or Card Reset (SYSTem:CPON command) does not change the setting.

Front Panel Operation: DMM or Channel (Configure) > AC FILTER

Remote Interface Operation: Specify the lowest frequency expected in the input signal on the specified channels. The instrument selects the appropriate timeout based on the frequency you specify (see table above).

[SENSe:]FREQuency:RANGe:LOWer {320200} [,(@<ch_list>)]

If you omit the optional <ch_list> parameter, the command applies to the internal DMM.

34980A User’s Guide

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Agilent Technologies Switch/Measure Frequency Measurement Configuration, Low Frequency Timeout, Low frequency timeout