[SENSe:]TEMPerature:NULL:VALue:AUTO {ON|1|OFF|0}
[SENSe:]TEMPerature:NULL:VALue:AUTO?
Enables or disables automatic null value selection for temperature measurements.
Parameter Typical Return
{ON|1|OFF|0}, default OFF 0(OFF)or1(ON)
Configure temperature measurements, using the null function to subtract 25° from them. Make and read two
measurements:
CONF:TEMP RTD
TEMP:NULL:STAT ON;VAL 25>
SAMP:COUN 2
READ?
Typical Response: +1.04530000E+00,+1.04570000E+00
Make a second set of measurements using automatic null value selection:
TEMP: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:]TEMPerature:NULL:VALue will be 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 this command: [SENSe:]
TEMPerature:NULL:VALue.
l The instrument enables automatic null value selection when the null function is enabled ([SENSe:]
TEMPerature:NULL:STATe ON).
l This parameter is set to its default value after a Factory Reset (*RST), Instrument Preset (SYSTem:PRESet), or
CONFigure function.
[SENSe:]TEMPerature:TRANsducer:{RTD|FRTD}:RESistance[:REFerence]
{<reference>|MIN|MAX|DEF}
[SENSe:]TEMPerature:TRANsducer:{RTD|FRTD}:RESistance[:REFerence]?
[{MIN|MAX|DEF}]
Selects the nominal resistance (R
0
) for 2-wire and 4-wire RTD measurements. R
0
is the nominal resistance of an RTD
at 0 °C.
Parameter Typical Return
80 Ω to 120 Ω, default 100 Ω +1.00100000E+02
Configure 4-wire RTD measurements using an RTD with an R
0
of 100.1 Ω. Make and read two measurements:
CONF:TEMP FRTD
TEMP:TRAN:FRTD:RES 100.1
SAMP:COUN 2
READ?
Typical Response: +1.04530000E+02,+1.04570000E+02
l This parameter is set to its default value after a Factory Reset (*RST) or Instrument Preset (SYSTem:PRESet).
Agilent Truevolt Series DMM Operating and Service Guide 213
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