5: Leakage current and insulation resistance Model 2470 High Voltage SourceMeter Instrument
5-12 2470-900-01 Rev. B / August 2019
Set up the application using SCPI commands
The following SCPI commands make insulation resistance measurements by sourcing 700 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
:ROUT:TERM REAR
:SOUR:FUNC VOLT
:SOUR:VOLT 700
: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 2470.
Select the rear-panel terminals for the
measurement.
Set to source voltage.
Output 700 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
.
Set up the application using TSP commands
The following TSP code is designed to be run from Keithley Instruments Test Script Builder (TSB).
You can install and use TSB to write code and develop scripts for TSP-enabled instruments.
Information about how to use TSB is in the online help for TSB and in the “Introduction to TSP
operation” section of the Model 2470 Reference Manual.
By default, the 2470 uses the SCPI command set. You must select the TSP command set before
sending TSP commands to the instrument.
To enable TSP commands:
1. Pr
ess the MENU key.
2. Under System, select Settings.
3. Set the Command Set to TSP.
4. At the prompt to reboot, select Yes.
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