Tektronix Keithley SourceMeter 2450, User Manual

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Section 6: Leakage current and insulation resistance Model 2450 Interactive SourceMeter® Instrument User's Manual
6-10 2450-900-01 Rev. A / June 2013
Setting up the application using SCPI commands
The following sequence of SCPI commands makes insulation resistance measurements by sourcing
20 V and measuring the resistance. The Simple Loop trigger template is used to take 10 readings at
100 ms intervals.
Send the following commands for this example application:
Command Description
*RST
ROUT:TERM REAR
SOUR:FUNC VOLT
SOUR:DEL 0.1
SOUR:VOLT 20
SOUR:VOLT:ILIM 0.01
SENS:FUNC "RES"
SENS:RES:RANG:AUTO ON
TRIG:LOAD:LOOP:SIMP 10
OUTP ON
INIT
*WAI
:TRAC:DATA? 1, 10, "defbuffer1", READ, REL
:OUTP OFF
•
Reset the Model 2450.
•
Select the rear-panel terminals for the measurement.
•
Set to source voltage.
•
Set a 100 ms source delay
•
Output 20 V.
•
Set a 10 mA source limit.
•
Set the instrument to measure resistance.
•
Set the current range to autorange.
•
Set the measurement count to 10.
•
Turn the output on.
•
Trigger the measurement.
•
Wait for the measurement to finish.
•
Get all 10 current and relative time measurements.
•
Turn the output off.
•
Get all 200 current and relative time measurements.
•
Turn the output off.
Setting up the application using TSP commands
The following example TSP code is designed to be run from Keithley Instruments Test Script Builder
(TSB). TSB is a software tool included on one of the CD-ROMs that came with your Model 2450.
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 Model 2450 is configured to use SCPI commands. You must select the TSP command
set before attempting to send TSP commands to the instrument.
To enable TSP commands:
1. Press the MENU key.
2. Under System, select Settings .
3. Select the button next to Command Set and select TSP .
4. You are prompted to reboot. Select Yes .