[SENSe:]CURRent:{AC|DC}:NULL:VALue:AUTO {ON|1|OFF|0}
[SENSe:]CURRent:{AC|DC}:NULL:VALue:AUTO?
Enables or disables automatic null value selection for AC or DC current measurements.
This parameter setting is not shared between AC and DCmeasurements. The parameters are independent
for AC and DCmeasurements.
On the 34461A, 34465A, or 34470A, use the [SENSe:]CURRent:{AC|DC}:TERMinals command to spe-
cify which current terminals to use for the measurement.
Parameter Typical Return
{ON|1|OFF|0}. Default: ON. 0(OFF)or1(ON)
Configure AC current measurements, using the null function to subtract 100 mA from the measurements.
Then make two measurements and send them to the instrument's output buffer:
CONF:CURR:AC
CURR:AC:NULL:STAT ON;VAL 100 mA
SAMP:COUN 2
READ?
Typical Response: +1.04530000E+00,+1.04570000E+00
Make a second set of measurements using automatic null value selection:
CURR: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:]CURRent:{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:]CURRent:{AC|DC}:NULL:VALue.
l The instrument enables automatic null value selection when the null function is enabled
([SENSe:]CURRent:{AC|DC}:NULL:STATe ON).
l This parameter is set to its default value after a Factory Reset (*RST), Instrument Preset
(SYSTem:PRESet), or CONFigure function.
Keysight Truevolt Series Operating and Service Guide
323
SCPI Programming Reference