[SENSe:]VOLTage:{AC|DC}:RANGe {<range> | MIN | MAX | DEF} [, (@<ch_list>)]
[SENSe:]VOLTage:{AC|DC}:RANGe? [{(@<ch_list>) | MIN | MAX | DEF}]
Selects a fixed range for AC and DC voltage measurements.
This parameter setting is not shared between AC and DC measurements. The parameters are independent for
AC and DC measurements.
Parameter Typical return
<range>: {100 mV|1 V|10 V|100 V|300 V}.
Default:AUTO
+1.00000000E+01
Configure AC voltage measurements, and select 10 V range:
CONF:VOLT:AC
VOLT:AC:RANG 10
–
Selecting a fixed range ([SENSe:]<function>:RANGe) disables autoranging.
–
If the input signal is greater than can be measured on the specified fixed range, the instrument displays Overload
on front panel and returns "9.9E37" from the remote interface.
– This parameter is set to its default value after a Factory Reset (*RST command).
[SENSe:]VOLTage[:DC]:APERture {<seconds> | MIN | MAX | DEF} [, (@<ch_list>)]
[SENSe:]VOLTage[:DC]:APERture? [{(@<ch_list>) | MIN | MAX | DEF}]
Enables the aperture mode and sets the integration time in seconds (called aperture time) for DC voltage meas-
urements.
Used this command for precise control for the DMM's integration time.Use NPLC for better power-line noise
rejection characteristics (NPLC >1) (see [SENSe:]VOLTage[:DC]:NPLCycles command).
Parameter Typical return
200 μs to 1 s (2 μs resolution).
Default: 100 ms
+1.00000000E- 01
Enable aperture time mode, set the aperture time to 300 ms:
VOLT:DC:APER:ENAB ON
VOLT:DC:APER 300E-03
–
You can specify MIN (smallest value accepted) or MAX (largest value accepted) instead of <seconds>.
– Only the integral number of power line cycles (1, 2, 10, 20, 100, or 200 PLCs) provide normal mode (line fre-
quency noise) rejection.
Keysight DAQ970A/DAQ973A Programming Guide 275
2 SCPI Programming
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