[SENSe:]VOLTage:AC:SECondary {"OFF"|"CALCulate:DATA"|"FREQuency"|"VOLTage[:DC]"}
[SENSe:]VOLTage:AC:SECondary?
Selects the secondary measurement function for AC voltage measurements.
Parameter Typical Return
{"OFF"|"CALCulate:DATA"|"FREQuency"|"VOLTage
[:DC]"}, default "OFF"
"CALC:DATA"
Configure AC voltage measurements using the 100 V range. Select frequency as the secondary meas-
urement. Make and retrieve measurements.
CONF:VOLT:AC 100
VOLT:AC:SEC "FREQ"
READ?;DATA2?
Typical Response: +8.54530000E+01;+1.00000000E+03
l "CALCulate:DATA" - (Applies only to the 34465A and 34470A.) The measurement value before any
math operations are done (including NULL).
l "FREQuency" - The frequency measurement of the input signal.
l "VOLTage[:DC]" - The DC voltage measurement of the input signal. Applies only when using the instru-
ment from the front panel. Setting is ignored for measurements made from a remote interface. If you
require both AC and DC voltage measurements from remote, program each function separately, see
CONFigure[:VOLTage]:{AC|DC}.
l Use READ? or INITiate to start the measurement.
l This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset
(SYSTem:PRESet).
[SENSe:]VOLTage[:DC]:APERture {<seconds>|MIN|MAX|DEF}
[SENSe:]VOLTage[:DC]:APERture? [{MIN|MAX|DEF}]
Specifies the integration time in seconds (called aperture time) for dc voltage measurements.
Use this command for precise control of the DMM's integration time. Use NPLC (see
[SENSe:]VOLTage[:DC]:NPLC) for better power-line noise rejection characteristics
(NPLC > 1).
Parameter Typical Return
(Without the DIGoption) 200µs to 1 s (2 µs resolution), default: 100 ms. (With the DIG
option) 20 µs to 1 s (2 µs resolution), default: 100 ms.
+1.00000000E-
01
Enable aperture time mode, set the aperture time to 300ms:
VOLT:APER:ENAB ON
VOLT:DC:APER 300E-03
Keysight Truevolt Series Operating and Service Guide
379
SCPI Programming Reference
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