HP 34970A manual Voltage Configuration Commands, INPut IMPedanceAUTO OFFON,@x IMPedanceAUTO? @x

Chapter 5 Remote Interface Reference

Voltage Configuration Commands

Voltage Configuration Commands

See also “Voltage Measurement Configuration” in chapter 4 starting on page 113.

INPut
:IMPedance:AUTO {OFFON}[,(@<x		>)]
:IMPedance:AUTO? [(@<x	>)]

Disable or enable the automatic input resistance mode for dc voltage measurements on the specified channels. With AUTO OFF (default), the input resistance is fixed at 10 MΩ for all ranges. With AUTO ON, the input resistance is set to >10 GΩ for the 100 mV, 1 V, and 10 V ranges. The :AUTO? query returns the input resistance setting on the specified channels. Returns “0” (OFF) or “1” (ON).

[SENSe:]
VOLTage:AC:BANDwidth {320200MINMAX}[,(@<x		>)]
VOLTage:AC:BANDwidth? [{(@<x	>)MINMAX}]

Specify the lowest frequency expected in the input signal for ac voltage measurements on the specified channels. The instrument selects the

slow, medium (default), or fast ac filter based on the frequency you 5 specify. MIN = 3 Hz. MAX = 200 Hz. The :BAND? query returns the

ac filter setting on the specified channels. Returns “3”, “20”, or “200”.

[SENSe:]
ZERO:AUTO {OFFONCEON}[,(@<x		>)]
ZERO:AUTO? [{(@<x	>)]

Disable or enable (default) the autozero mode. The OFF and ONCE parameters have a similar effect. Autozero OFF does not issue a new zero measurement until the next time the instrument goes to the “wait-for-trigger” state. Autozero ONCE issues an immediate zero measurement. The :AUTO? query the autozero mode. Returns “0” (OFF or ONCE) or “1” (ON).

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