6: Leakage current and insulation resistance Model 2450 SourceMeter® Instrument
6-8 2450-900-01 Rev. E / August 2019
Set up the leakage current application using TSP commands
The following TSP code is designed to be run from Keithley Instruments Test Script Builder (TSB).
TSB is a software tool that is available from tek.com/keithley
. 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 2450 Reference
Manual.
To use other programming environments, you may need to make changes to the example TSP code.
By default, the 2450 uses the SCPI command set. You must select the TSP command set before
sending TSP commands to the instrument.
To enable TSP commands:
1. Press the MENU key.
2. Under System, select Settings.
3. Set the Command Set to TSP.
4. At the prompt to reboot, select Yes.
The following TSP code performs a capacitor leakage measurement by sourcing 20 V and measuring
the resulting leakage current. The Duration Loop trigger model template applies the voltage for 60
seconds and makes measurements at 200 ms intervals. After the duration time, the capacitor is
discharged at 0 V and the output is turned off.
After the code is executed, the measurement results are displayed in the Instrument Console of Test
Script Builder. From the Instrument Console, you can copy the data into a spreadsheet for graphing.
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