Keithley 3720-ST User Manual

Series 3700A System Switch/Multimeter Reference Manual Section 11: TSP command reference
3700AS-901-01 Rev. D/June 2018 11-231
dmm.threertd
This attribute defines the type of three-wire RTD that is being used.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (RW)
Yes
Reset
DMM reset
Recall setup
Create configuration script
Save setup
0 (dmm.RTD_PT100)
Usage
value = dmm.threertd
dmm.threertd = value
value
The type for 3-wire RTD:
▪ PT100: dmm.RTD_PT100 or 0
▪ D100: dmm.RTD_D100 or 1
▪ F100: dmm.RTD_F100 or 2
▪ PT385: dmm.RTD_PT385 or 3
▪ PT3916: dmm.RTD_PT3916 or 4
▪ User-specified type: dmm.RTD_USER or 5
Details
This attribute is only valid when dmm.func is set to "temperature" and dmm.transducer is set
to dmm.TEMP_THREERTD. For all other transducer types, the attribute is set but is not used until the
transducer type is set for three-wire RTD. All other functions generate an error and return nil when
queried.
An illegal parameter value error message is generated if the value specified is not a supported RTD
type value as listed in the usage table.
The three-wire RTD setting is saved with the dmm.func function setting, so if you use another
function, then return to "temperature", the three-wire RTD setting you set previously is retained.
Example
dmm.func = "temperature"
dmm.transducer = dmm.TEMP_THREERTD
dmm.threertd = dmm.RTD_PT3916
Sets the type of three-wire RTD to PT3916.
Also see
dmm.configure.recall() (on page 11-165)
dmm.configure.set() (on page 11-166)
dmm.func (on page 11-179)
dmm.transducer (on page 11-233)

Keithley 3720-ST Specifications

General

Brand	Keithley
Model	3720-ST
Category	Multimeter
Language	English