This subsystem configures two- and four-wire resistance measurements.
[SENSe:]{RESistance|FRESistance}:APERture
[SENSe:]{RESistance|FRESistance}:APERture:ENABled
[SENSe:]{RESistance|FRESistance}:NPLC
[SENSe:]{RESistance|FRESistance}:NULL[:STATe]
[SENSe:]{RESistance|FRESistance}:NULL:VALue
[SENSe:]{RESistance|FRESistance}:NULL:VALue:AUTO
[SENSe:]{RESistance|FRESistance}:OCOMpensated
[SENSe:]{RESistance|FRESistance}:POWer:LIMit[:STATe]
[SENSe:]{RESistance|FRESistance}:RANGe
[SENSe:]{RESistance|FRESistance}:RANGe:AUTO
[SENSe:]{RESistance|FRESistance}:RESolution
[SENSe:]{FRESistance|RESistance}:SECondary
Specifies the integration time in seconds (called aperture time) for resistance measurements.
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Use this command for precise control of the DMM's integration time. Use NPLC (see [SENSe:]FRESistance:NPLC) for better power-line noise rejection characteristics (NPLC > 1).. This parameter is common to 2-wire and 4-wire resistance measurements. Using the FRESistance version of this command or query is identical to using the RESistance version. |
Parameter | Typical Return |
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(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 aperture time to 300 milliseconds: RES:APER:ENAB ON or FRES:APER:ENAB ON |
Enables the setting of integration time in seconds (called aperture time) for resistance measurements. If aperture time mode is disabled (default), the integration time is set in PLC (power-line cycles).
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This parameter is common to 2-wire and 4-wire resistance measurements. Using the FRESistance version of this command or query is identical to using the RESistance version. |
Parameter | Typical Return |
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{ON|1|OFF|0}. Default: OFF. | 0 (OFF) or 1 (ON) |
Enable aperture, set aperture time to 300 ms: RES:APER:ENAB ON or FRES:APER:ENAB ON |
Sets the integration time in number of power line cycles (PLC) for all resistance 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.
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This parameter is common to 2-wire and 4-wire resistance measurements. Using the FRESistance version of this command or query is identical to using the RESistance version. |
Parameter | Typical Return |
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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 resistance measurements using a 10 PLC integration time. Then make and read one measurement: CONF:FRES Typical Response: +6.27530000E+01 |
Enables or disables the null function for all resistance measurements.
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This parameter is common to 2-wire and 4-wire resistance measurements. Using the FRESistance version of this command or query is identical to using the RESistance version. |
Stores a null value for all resistance measurements.
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This parameter is common to 2-wire and 4-wire resistance measurements. Using the FRESistance version of this command or query is identical to using the RESistance version. |
Enables or disables automatic null value selection for all resistance measurements.
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This parameter is common to 2-wire and 4-wire resistance measurements. Using the FRESistance version of this command or query is identical to using the RESistance version. |
Enables or disables offset compensation. 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. Enabling Offset Compensation approximately doubles the reading time.
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This parameter is common to 2-wire and 4-wire resistance measurements. Using the FRESistance version of this command or query is identical to using the RESistance version. |
Enables or disables low-power resistance measurements (either 2- or 4-wire).
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This parameter is common to 2-wire and 4-wire resistance measurements. Using the FRESistance version of this command or query is identical to using the RESistance version. |
Parameter | Typical Return |
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{ON|1|OFF|0}. Default: OFF. | 0 (OFF) or 1 (ON) |
Configure 4-wire resistance measurements using a 10 PLC integration time. Enable low-power 4-wire resistance measurements. Then make and read one measurement: CONF:FRES Typical Response: +6.27530000E+01 |
Selects a fixed measurement range for all resistance measurements.
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This parameter is common to 2-wire and 4-wire resistance measurements. Using the FRESistance version of this command or query is identical to using the RESistance version. |
Parameter | Typical Return |
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{100 Ω|1 kΩ|10 kΩ|100 kΩ|1 MΩ|10 MΩ|100 MΩ|1 GΩ}. Default: 1 kΩ. | +1.00000000E+03 |
Configure 2-wire resistance measurements using the 10 kΩ range. Then make and read one measurement: CONF:RES Typical Response: +6.27530000E+03 |
Disables or enables autoranging for all resistance measurements. Autoranging is convenient because it automatically selects the range for each measurement based on the input signal. Specifying ONCE performs an immediate autorange and then turns autoranging off.
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This parameter is common to 2-wire and 4-wire resistance measurements. Using the FRESistance version of this command or query is identical to using the RESistance version. |
Parameter | Typical Return |
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{ON|1|OFF|0}. Default: ON. |
0 (OFF) or 1 (ON) |
Configure 2-wire resistance measurements and perform an immediate autorange. Make and read two measurements: CONF:RES Typical Response: +1.04530000E+03,+1.04570000E+03 |
Selects the measurement resolution for all resistance measurements. Specify the resolution in the same units as the selected measurement function, not in number of digits.
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This parameter is common to 2-wire and 4-wire resistance measurements. Using the FRESistance version of this command or query is identical to using the RESistance version. |
Parameter | Typical Return |
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<resolution>: See Resolution Table or Range, Resolution and NPLC. The default is equivalent to 10 PLC. Specify <resolution> in the measurement's units (V, A, Hz, Ω, and so on). | +3.00000000E+00 |
Configure 2-wire resistance measurements with a 3 Ω resolution. Then make and read one measurement: CONF:RES 1E6 Typical Response: +6.27531500E+05 |
Selects the secondary measurement function for all resistance measurements.
Parameter | Typical Return |
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{"OFF"|"CALCulate:DATA"}, default "OFF" |
"CALC:DATA" |
Configure resistance and secondary measurements. Make resistance measurement and retrieve secondary measurement. CONF:RES AUTO,MAX Typical Response: +3.01566373E-10;,+9.91000000E+3 |
Disables or enables the autozero mode for 2-wire resistance measurements.
Parameter | Typical Return |
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{OFF|ON|ONCE} | 0 (OFF) or 1 (ON) |
Configure 2-wire resistance measurements and perform an immediate autozero. Make and read two measurements: CONF:RES 1E4 Typical Response: +1.04530000E+03,+1.04570000E+03 |