Agilent Technologies Truevolt Series Operating And Service Manual page 210

[SENSe:]RESistance:ZERO:AUTO {OFF|ON|ONCE}
[SENSe:]RESistance:ZERO:AUTO?
Disables or enables the autozero mode for 2-wire resistance measurements.
ON (default): the DMM internally measures the offset following each measurement. It then subtracts that
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measurement from the preceding reading. This prevents offset voltages present on the DMM's input circuitry from
affecting measurement accuracy.
OFF: the instrument uses the last measured zero measurement and subtracts it from each measurement. It
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takes a new zero measurement each time you change the function, range or integration time.
ONCE: the instrument takes one zero measurement and sets autozero OFF. The zero measurement taken is used
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for all subsequent measurements until the next change to the function, range or integration time. If the specified
integration time is less than 1 PLC, the zero measurement is taken at 1 PLC to optimize noise rejection.
Subsequent measurements are taken at the specified fast (< 1 PLC) integration time.
Parameter
{OFF|ON|ONCE}
Configure 2-wire resistance measurements and perform an immediate autozero. Make and read two measurements:
CONF:RES 1E4
RES:ZERO:AUTO ONCE
SAMP:COUN 2
READ?
Typical Response: +1.04530000E+03,+1.04570000E+03
This command does not affect 4-wire resistance measurements, which are always made with autozero ON.
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The autozero mode is set indirectly when you set the resolution and integration time using
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{RESistance|FRESistance}
you select an integration time less than 1 PLC with these commands.
This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet).
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or MEASure:{RESistance|FRESistance}?. Autozero is automatically turned OFF when
Typical Return
0 (OFF) or 1 (ON)
Agilent Truevolt Series DMM Operating and Service Guide
CONFigure: