[SENSe:]VOLTage:{AC|DC}:NULL:VALue:AUTO {ON|1|OFF|0}
[SENSe:]VOLTage:{AC|DC}:NULL:VALue:AUTO?
Enables or disables automatic null value selection for AC voltage or DC voltage measurements.
This parameter setting is not shared between AC and DCmeasurements. The parameters are independent
for AC and DCmeasurements.
Parameter Typical Return
{ON|1|OFF|0}. Default: OFF. 0(OFF)or1(ON)
Configure AC voltage measurements, using the null function to subtract 100 mV from the measurements.
Make and read two measurements:
CONF:VOLT:AC
VOLT:AC:NULL:STAT ON;VAL 100 mV
SAMP:COUN 2
READ?
Typical Response: +1.04530000E+00,+1.04570000E+00
Make a second set of measurements using automatic null value selection:
VOLT:AC:NULL:VAL:AUTO ON
READ?
Typical Response: +0.00000000E+00,+0.01420000E+00
l When automatic reference selection is ON, the first measurement made is used as the null value for all
subsequent measurements.[SENSe:]VOLTage:{AC|DC}:NULL:VALue is set to this value. Automatic
null value selection will be disabled.
l When automatic null value selection is disabled (OFF), the null value is specified by:[SENSe:]VOLTage:
{AC|DC}:NULL:VALue.
l The instrument enables automatic null value selection when the null function is enabled
([SENSe:]VOLTage:{AC|DC}:NULL:STATe ON).
l The null function is not available for DC ratio measurements.
l This parameter is set to its default value after a Factory Reset (*RST), Instrument Preset
(SYSTem:PRESet), or CONFigure function.
SCPI Programming Reference
376
Keysight Truevolt Series Operating and Service Guide
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