Keithley 3700 series Reference Manual page 250

Section 9: Instrument Control Library (ICL)
dmm.offsetcompensation
Attribute
Usage
Remarks
Example
dmm.open
Function
Usage
9-106
Indicates the offset compensation setting for the DMM.
To read the offset compensation:
value = dmm.offsetcompensation
value: Represents the present offset compensation setting.
To write the offset compensation:
dmm.offsetcompensation = value
value: Represents the desired offset compensation setting. Set to one of the following:

dmm.ON or 1 to enable offset compensation

dmm.OFF or 0 to disable offset compensation
This is the offset compensation setting for the DMM, and it applies to the selected function
as indicated by dmm.func. Querying the setting when the selected function does not
support it will cause nil to be returned.
The command applies when dmm.func is:

―fourwireohms‖

―commonsideohms‖

―temperature‖
When dmm.func = ―temperature‖, the command applies only when the transducer type is
3 or 4-wire RTD (for all others, it is ignored). Set this command like you would for 4-wire
ohm measurements.
All other function settings will generate an error if the command is received. Also, an error
will be generated if the value is invalid.
Changing functions with dmm.func has no effect on this setting.
The factory default and dmm.reset function value is dmm.OFF.
To enable offset compensation for four-wire ohms:
dmm.func = "fourwireohms"
dmm.offsetcompensation = dmm.ON
Opens the specified channel and/or channel pattern.
dmm.open(ch_list)
ch_list: string listing the channel and/or channel pattern to open.
Series 3700 System Switch/Multimeter Reference Manual
Document Number: 3700S-901-01 Rev. A / August 2007