Tektronix Keithley SourceMeter 2450 - Insulation Resistance with SCPI Commands

Section
6: Leakage current and insulation resistance Model 2450 SourceMeter® Instrument
User's Manual
6-12 2450-900-01 Rev. E / August 2019
Set up the application using SCPI commands
The following SCPI commands make insulation resistance measurements by sourcing 20 V and
measuring the resistance. The Simple Loop trigger model template is used to make
10 measurements at 100 ms intervals.
Send the following commands for this example application:
Command Description
*RST
:ROUT:TERM REAR
:SOUR:FUNC VOLT
:SOUR:VOLT 20
:SOUR:VOLT:ILIM 0.01
:SENS:FUNC "CURR"
:SENS:CURR:RANG:AUTO ON
:SENSE:CURR:UNIT OHM
:TRIG:LOAD "SimpleLoop", 10, 0.1
:OUTP ON
:INIT
*WAI
:OUTP OFF
:TRAC:DATA? 1, 10, "defbuffer1", READ, REL
 Reset the 2450.
 Select the rear-panel terminals for the
measurement.
 Set to source voltage.
 Output 20 V.
 Set a 10 mA source limit.
 Set the instrument to measure current.
 Set the current range to autorange.
 Set the instrument to measure resistance.
 Use the Simple Loop trigger model to make 10
measurements at 100 ms intervals.
 Turn the output on.
 Initiate readings.
 Wait for the measurement to finish.
 Turn the output off.
 Read the resistance and time values from
defbuffer1
.