This subsystem configures temperature measurements.
[SENSe:]TEMPerature:APERture:ENABled
[SENSe:]TEMPerature:NULL[:STATe]
[SENSe:]TEMPerature:NULL:VALue
[SENSe:]TEMPerature:NULL:VALue:AUTO
[SENSe:]TEMPerature:TRANsducer:{FRTD|RTD}:OCOMpensated
[SENSe:]TEMPerature:TRANsducer:{FRTD|RTD}:POWer:LIMit[:STATe]
[SENSe:]TEMPerature:TRANsducer:{FRTD|RTD}:RESistance[:REFerence]
[SENSe:]TEMPerature:TRANsducer:{FTHermistor|THERmistor}:POWer:LIMit[:STATe]
[SENSe:]TEMPerature:TRANsducer:{FTHermistor|THERmistor}:TYPE
[SENSe:]TEMPerature:TRANsducer:TCouple:CHECk
[SENSe:]TEMPerature:TRANsducer:TCouple:RJUNction
[SENSe:]TEMPerature:TRANsducer:TCouple:RJUNction:OFFSet:ADJust
[SENSe:]TEMPerature:TRANsducer:TCouple:RJUNction:TYPE
[SENSe:]TEMPerature:TRANsducer:TCouple:TYPE
[SENSe:]TEMPerature:TRANsducer:TYPE
Specifies the integration time in seconds (called aperture time) for temperature measurements.
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Use this command for precise control of the DMM's integration time. Use NPLC (see [SENSe:]TEMPerature:NPLC) for better power-line noise rejection characteristics (NPLC > 1). |
Parameter | Typical Return |
---|---|
(Without the DIG option) 200 µs 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, set the aperture time to 300 ms: TEMP:APER:ENAB ON |
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).
Parameter | Typical Return |
---|---|
{ON|1|OFF|0}. Default: OFF. | 0 (OFF) or 1 (ON) |
Enable aperture time mode, set the aperture time to 300 ms: TEMP:APER:ENAB ON |
Sets the integration time in number of power line cycles (PLC) for temperature measurements. Integration time is the period that the instrument's analog-to-digital (A/D) converter samples the input signal for a measurement. A longer integration time gives better measurement resolution but slower measurement speed.
Parameter | Typical Return |
---|---|
0.02, 0.2, 1, 10, 100. Default: 10 (34460A/61A) 0.02, 0.06, 0.2, 1, 10, 100. Default: 10 (34465A/70A without DIG option) 0.001, 0.002, 0.006, 0.02, 0.06, .2, 1, 10, 100. Default: 10 (34465A/70A with DIG option) See Range, Resolution and NPLC for more information. |
+1.00000000E+01 |
Configure 4-wire RTD measurements using a 10 PLC integration time. Then make and read one measurement: CONF:TEMP FRTD Typical Response: +6.27530000E+01 |
Enables or disables the null function for temperature measurements.
Stores a null value for temperature measurements.
Enables or disables automatic null value selection for temperature measurements.
Parameter | Typical Return |
---|---|
{ON|1|OFF|0}. Default: OFF. | 0 (OFF) or 1 (ON) |
Configure temperature measurements, using the null function to subtract 25° from them. Make and read two measurements: Typical Response: +1.04530000E+00,+1.04570000E+00 Make a second set of measurements using automatic null value selection: TEMP:NULL:VAL:AUTO ON Typical Response: +0.00000000E+00,+0.01420000E+00 |
Selects the secondary measurement function for temperature measurements.
Parameter | Typical Return |
---|---|
{"OFF"|"CALCulate:DATA"|"SENSe:DATA"}, default "OFF" |
"CALC:DATA" |
Configure a 4-wire RTD measurement. Select the raw sensor value (ohms in this example) as the secondary measurement. Make and retrieve measurements. CONF:TEMP FRTD,85 Typical Response: -6.95327319E-01;+9.97282173E+01 |
Enables or disables offset compensation for 2-wire and 4-wire RTD measurements.
Offset compensation removes the effects of small dc voltages in the circuit being measured. The technique involves taking the difference between two resistance measurements, one with the current source set to the normal value, and one with the current source set to a lower value.
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This parameter is common to 2-wire and 4-wire resistance measurements. Using the FRTD version of this command or query is identical to using the RTD version. |
Parameter | Typical Return |
---|---|
{ON|1|OFF|0}. Default: OFF. |
0 (OFF) or 1 (ON) |
Configure offset-compensated 2-wire RTD measurements. Make and read two measurements: CONF:TEMP RTD READ? Typical Response: +1.05451008E+01,+1.07391062E+01 |
Enables or disables low-power, 2-wire or 4-wire, RTD measurements.
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This parameter is common to 2-wire and 4-wire RTD measurements. Using the FRTD version of this command or query is identical to using the RTD version. |
Parameter | Typical Return |
---|---|
{ON|1|OFF|0}. Default: OFF. | 0 (OFF) or 1 (ON) |
Configure offset-compensated 2-wire RTD measurements. Make and read two measurements: CONF:TEMP RTD READ? Typical Response: +1.05451008E+01,+1.07391062E+01 |
Selects the nominal resistance (R0) for 2-wire and 4-wire RTD measurements. R0 is the nominal resistance of an RTD at 0 °C.
Parameter | Typical Return |
---|---|
34460A/61A: 80 Ω to 120 Ω. Default: 100 Ω. |
+1.00100000E+02 |
Configure 4-wire RTD measurements using an RTD with an R0 of 100.1 Ω. Make and read two measurements: Typical Response: +1.04530000E+02,+1.04570000E+02 |
Enables or disables low-power thermistor measurements (either 2- or 4-wire).
Parameter | Typical Return |
---|---|
{ON|1|OFF|0}. Default: OFF. | 0 (OFF) or 1 (ON) |
Configure 4-wire thermistor measurements. Enable low-power thermistor measurements. Make and read two measurements: Typical Response: +1.04530000E+02,+1.04570000E+02 |
Selects the transducer probe type to use for temperature measurements. The supported probes are 2-wire and 4-wire RTDs, 2-wire and 4-wire thermistors (5 k 44007 type, see Thermistor Requirements below), and, for the 34465A/70A only, type E, J, K, N, R, or T thermocouples.
Parameter | Typical Return |
---|---|
{FRTD|RTD|FTHermistor|THERmistor|TCouple}. Default: FRTD. | FRTD, RTD, FTH, TC, or THER |
Configure 2-wire RTD measurements using an RTD with an R0 of 100.1 Ω. Make and read two measurements: Typical Response: +2.54530000E+01,+2.54570000E+01 |
Disables or enables the thermocouple check feature to verify that your thermocouples are properly connected for measurements. When enabled, the instrument measures the resistance after each thermocouple measurement to ensure a proper connection. If an open connection is detected (greater than 5 kΩ on the 10 kΩ range), the instrument reports an overload condition.
Parameter | Typical Return |
---|---|
{ON|1|OFF|0}. Default: OFF. | 0 (OFF) or 1 (ON) |
Configure K-type thermocouple measurements. Select fixed reference junction and set reference junction temperature to +20 °C. Enable thermocouple check. Make and read two measurements:
Typical Response: +3.31785468E+00,+3.61554515E+00 |
Sets the fixed reference junction temperature in degrees Celsius for thermocouple measurements.
Parameter | Typical Return |
---|---|
-20 °C to +80 °C. Default: 0 °C. | +2.00000000E+01 (always in degrees Celsius). |
Configure K-type thermocouple measurements. Select fixed reference junction and set reference junction temperature to +20 °C. Enable thermocouple check. Make and read two measurements:
Typical Response: +3.31785468E+00,+3.61554515E+00 |
Allows you to make minor temperature adjustments to correct for the differences between the DMM internal temperature measurement of the front connection and the actual temperature of the measurement terminals.
Parameter | Typical Return |
---|---|
-20 °C to +20 °C. Default: 0 °C. |
+2.00000000E+01 |
Configure thermocouple temperature measurements using the internal reference junction. Measure the temperature inside the instrument. Assuming the temperature outside the instrument is 5 °C cooler than the inside measurement, adjust the temperature by -5 °C. Then make and read one measurement: CONF:TEMP TC,K Typical Response: +3.31785468E+00 |
Thermocouple measurements require a reference junction temperature. For the reference junction temperature, you can use an internal measurement, or a known fixed junction temperature. This command selects the reference junction source for thermocouple measurements.
Parameter | Typical Return |
---|---|
{FIXed|INTernal} default INT | FIX or INT |
Configure K-type thermocouple measurements. Select fixed reference junction and set reference junction temperature to +20 °C. Enable thermocouple check. Make and read two measurements:
Typical Response: +3.31785468E+00,+3.61554515E+00 |
Selects the thermocouple type for thermocouple measurements.
Parameter | Typical Return |
---|---|
{E|J|K|N|R|T} default J | E, J, K, N, R, or T |
Configure K-type thermocouple measurements. Select fixed reference junction and set reference junction temperature to +20 °C. Enable thermocouple check. Make and read two measurements:
Typical Response: +3.31785468E+00,+3.61554515E+00 |
Selects the thermistor type for 2-wire and 4-wire temperature measurements. Choosing the THERmistor or the FTHermistor command form makes no difference, as both commands affect the same parameter.
Parameter | Typical Return |
---|---|
5000 (only available choice) | +5000 |
Configure 4-wire thermistor measurements. Make and read two measurements: Typical Response: +1.04530000E+02,+1.04570000E+02 |
Disables or enables the autozero mode for 2-wire temperature measurements.
Parameter | Typical Return |
---|---|
{OFF|ON|ONCE}. Default: ON. | 0 (OFF) or 1 (ON) |
Configure 2-wire RTD measurements and perform an immediate zero autozero. Make and read two measurements: Typical Response: +2.57530000E+01,+2.57570000E+01 |