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B-14 Return to Section Topics 2100-900-01 Rev. D / September 2011

Appendix B: Remote Interface Reference Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual

[SENSe:]ZERO:AUTO?

Query the AUTO ZERO mode. Returns "1" (ON) or "0" (OFF or ONCE).

[SENSe:]GAIN:AUTO {OFF|ONCE|ON}

Disable or enable the AUTO GAIN mode. The OFF and ONCE have a similar effect. OFF mode

does not issue a new offset measurement until the multimeter goes to the "WAIT-FOR-TRIGGER"

state. Parameter ONCE issues an immediate offset measurement.

[SENSe:]GAIN:AUTO?

Query the AUTO GAIN mode. Returns "1" (ON) or "0" (OFF or ONCE).

INPut:IMPedance:AUTO{OFF|ON}

Disable or enable the automatic input resistance mode for DC voltage measurements. With AUTO

ON, the input resistance is set to >10G for the 100mV, 1V, and 10V ranges. With AUTO OFF, the

input resistance is fixed at 10M for all ranges.

INPut:IMPedance:AUTO?

Query the input resistance mode. Returns "1" (ON) or "0" (OFF).

ROUTe:TERMinals?

Query the multimeter to determine if the front or rear input terminals are selected. Returns "FRON"

or "REAR."

The math operation command

CALCulate:FUNCtion {PERCent|AVERage|NULL|LIMit|MXB|DB|DBM}

Select the math function (only one function can be enabled at a time. The default function is

PERCent).

CALCulate:FUNCtion?

Query the present math function. Returns PERC, AVER, NULL, LIM, MXB, DB or DBM.

CALCulate:STATe {OFF|ON}

Disable or enable the selected math function.

Keithley 2100 User Manual

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