Keysight Truevolt Serie Mode D'emploi page 384

[SENSe:]VOLTage[:DC]:ZERO:AUTO {OFF|ON|ONCE}
[SENSe:]VOLTage[:DC]:ZERO:AUTO?
Disables or enables the autozero mode for DC voltage and ratio measurements.
ON (default): the DMM internally measures the offset following each measurement. It then subtracts
l
that 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 meas-
l
urement. It 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
l
taken is used for all subsequent measurements until the next change to the function, range or integ-
ration 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 DC voltage measurements and immediately autozero. Make and read two measurements:
CONF:VOLT:DC 1
VOLT:DC:ZERO:AUTO ONCE
SAMP:COUN 2
READ?
Typical Response: +1.04530000E+01,+1.04570000E+01
The autozero mode is set indirectly when you set the resolution and integration time using CONFig-
l
ure:VOLTage:DC, CONFigure:VOLTage:DC:RATio, MEASure:VOLTage:DC?, or
MEASure:VOLTage:DC:RATio?. Autozero is automatically turned OFF when 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
l
(SYSTem:PRESet).
Keysight Truevolt Series Operating and Service Guide
Typical Return
0 (OFF) or 1 (ON)
SCPI Programming Reference
385