Keithley 3700 series Reference Manual page 234

Section 9: Instrument Control Library (ICL)
dmm.fourrtd
Attribute
Usage
Remarks
Example
9-90
Indicates the type of four-wire RTD being used.
To read the 4-wire RTD type:
value = dmm.fourrtd
value: Represents the present type for 4-wire RTD
To write the 4-wire RTD type:
dmm.fourrtd = value
value: Represents the desired type for 4-wire RTD. Use one of the following for values:

dmm.RTD_PT100 or 0 for type PT100

dmm.RTD_D100 or 1 for type D100

dmm.RTD_F100 or 2 for type F100

dmm.RTD_PT385 or 3 for type PT385

dmm.RTD_PT3916 or 4 for type PT3916

dmm.RTD_USER or 5 for user specified type
This attribute is only valid when dmm.func = ―temperature‖. All other configurations
generate an error and return nil when queried.
Changing functions with dmm.func
The dmm.reset (on page 9-112) function will set this attribute to dmm.RTD_PT100.
To set the type of four-wire RTD for PT3916:
dmm.func = "temperature"
dmm.fourrtd = dmm.RTD_PT3916
Series 3700 System Switch/Multimeter Reference Manual
(on page 9-91) has no effect on this setting.
Document Number: 3700S-901-01 Rev. A / August 2007