Dmm.measure.offsetcompensation.enable - Keithley DMM7510 Reference Manual

Model DMM7510 7½ Digit Graphical Sampling Multimeter Reference Manual

dmm.measure.offsetcompensation.enable

This attribute enables or disables offset compensation.
Type TSP-Link accessible
Attribute (RW) Yes
Usage
state = dmm.measure.offsetcompensation.enable
dmm.measure.offsetcompensation.enable = state
state
Functions
dmm.FUNC_DC_VOLTAGE
dmm.FUNC_AC_VOLTAGE
dmm.FUNC_DC_CURRENT
dmm.FUNC_AC_CURRENT
dmm.FUNC_TEMPERATURE
Details
The voltage offsets caused by the presence of thermoelectric EMFs (V
resistance measurement accuracy. To overcome these offset voltages, you can use offset-
compensated ohms.
For 4-wire resistance measurements, when offset compensation is enabled, the measure range is
limited to a maximum of 100 kΩ. Offset compensation is automatically enabled when dry circuit is
enabled.
For 2-wire resistance measurements, offset compensation is always set to off.
For temperature measurements, offset compensation is only available when the transducer type is
set to 3-wire or 4-wire RTD.
Example
dmm.measure.func = dmm.FUNC_TEMPERATURE
dmm.measure.transducer = dmm.TRANS_FOURRTD
dmm.measure.offsetcompensation.enable = dmm.ON
print(dmm.measure.read())
Also see
dmm.measure.drycircuit
DMM7510-901-01 Rev. B / May 2015
Affected by
Restore configuration
Instrument reset
Power cycle
Measure configuration list
Disable offset compensation: dmm.OFF
Enable offset compensation: dmm.ON (for 4-wire resistance, not available for ranges
more than 1 MΩ)
dmm.FUNC_RESISTANCE
dmm.FUNC_4W_RESISTANCE
dmm.FUNC_DIODE
dmm.FUNC_CAPACITANCE
dmm.FUNC_CONTINUITY
(on page 8-149)
Section 8: TSP command reference
Where saved Default value
Configuration script 4-wire resistance: dmm.OFF
Measure configuration list Temperature, 3- or 4-wire RTD:
dmm.ON
dmm.FUNC_ACV_FREQUENCY
dmm.FUNC_ACV_PERIOD
dmm.FUNC_DCV_RATIO
dmm.FUNC_DIGITIZE_CURRENT
dmm.FUNC_DIGITIZE_VOLTAGE
EMF
Sets the measurement function to
resistance. Set the instrument for 4-wire
RTD and turn offset compensation on.
Make a measurement.
) can adversely affect
8-173