[SENSe:]TEMPerature:APERture {<seconds> | MIN | MAX | DEF} [, (@<ch_list>)]
[SENSe:TEMPerature:APERture? [{(@<ch_list>) | MIN | MAX | DEF}]
Enables the aperture mode and sets the integration time in seconds (called aperture time) for temperature meas-
urements.
Only supported in DAQM900A, DAQM901A, DAQM902A, and DAQM908A multiplexer modules.
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:]TEMPerature: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:
TEMP:APER:ENAB ON
TEMP: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.
– The CONFigure:TEMPerature, MEASure:TEMPerature?, and [SENSe:]TEMPerature:NPLCycles commands auto-
matically disable the aperture time mode, and select an integration time in number of power line cycles.
– This parameter is set to its default value after a Factory Reset (*RST command).
[SENSe:]TEMPerature:APERture:ENABle {OFF | ON} [, (@<ch_list>)]
[SENSe:]TEMPerature:APERture:ENABle? [(@<ch_list>)]
Enables the setting of integration time in seconds (called aperture time) for temperature measurements. If aperture
time mode is disabled (default), the integration time is set in PLC (power-line cycles).
Only supported in DAQM900A, DAQM901A, DAQM902A, and DAQM908A multiplexer modules.
Parameter Typical return
{OFF | ON}. Default: OFF 0 (OFF) or 1 (ON)
Enable aperture time mode, set the aperture time to 300 ms:
TEMP:APER:ENAB ON
TEMP:APER 300E-03
– The CONFigure:TEMPerature, MEASure:TEMPerature?, and [SENSe:]TEMPerature:NPLCycles commands auto-
matically disable the aperture time mode, and select an integration time in number of power line cycles.
– This parameter is set to its default value after a Factory Reset (*RST command).
Keysight DAQ970A/DAQ973A Programming Guide 259
2 SCPI Programming
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