Tektronix Keithley SourceMeter 2470 User Manual

Model 2470
High Voltage SourceMeter Instrument User's Manual Section 5:
Leakage current and insulation resistance
2470-900-01 Rev. B / August 2019 5-13
The following TSP 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. After the code is executed, the measurement results are
displayed in the Instrument Console of Test Script Builder.
Send the following commands for this example application:
-- Reset the instrument
reset()
-- Set up the source function.
smu.source.func = smu.FUNC_DC_VOLTAGE
smu.source.ilimit.level = 1e-3
smu.source.level = 700
-- Set up the measure function
smu.measure.func = smu.FUNC_DC_CURRENT
smu.measure.unit = smu.UNIT_OHM
smu.terminals = smu.TERMINALS_REAR
smu.measure.autorange = smu.ON
smu.measure.nplc = 1
-- Turn on the source output and make readings.
trigger.model.load("SimpleLoop", 10, 0.1)
smu.source.output = smu.ON
trigger.model.initiate()
-- Wait for the measurements to complete.
waitcomplete()
-- Turn off the output.
smu.source.output = smu.OFF
-- Parse index and the data into three columns.
print("Rdg #", "Time (s)", "Resistance (Ohm)")
for i = 1, defbuffer1.n do
print(i, defbuffer1.relativetimestamps[i], defbuffer1[i])
end

Tektronix Keithley SourceMeter 2470 Specifications

General

Model	2470
Type	SourceMeter
Category	Measuring Instruments
Channels	1
Voltage Source Range	±1000 V
Current Source Range	±1 A
Power	100 W
Current Measurement Resolution	10 pA
Measurement Resolution	6½ digits
Display	5 inch capacitive touchscreen
Interface	USB, GPIB, Ethernet
Supported Communication Protocols	SCPI
Input/Output Connectors	4-wire

Summary

Safety Precautions

Electrical Hazard Warnings and Precautions

Details precautions for hazardous voltage levels, connections, and live circuits.

Instrument Handling and Grounding Safety

Covers power cord, cable inspection, grounding, and general safe handling practices.

Front-Panel Operation and Controls

Powering the Instrument On and Off

Instructions for basic power management of the Model 2470 instrument.

Front Panel Controls Overview

Description of front-panel keys, touchscreen, and navigation controls.

Touchscreen Navigation and Swipe Screens

Basic Front-Panel Measurements

Device Connection for Measurements

Performing Front-Panel Measurements

Step-by-step guide for taking measurements directly using the instrument's front panel.

Leakage and Insulation Resistance Testing

Leakage Current Measurement Procedures

Step-by-step guide for measuring leakage current, including front-panel and remote methods.

Insulation Resistance Measurement Procedures

Step-by-step guide for measuring insulation resistance, including front-panel and remote methods.

Measuring FET I-V Characteristics

Introduction to FET I-V Characterization

Equipment and Hardware Setup

External Trigger Synchronization

Setting up external triggers for synchronizing multiple instruments.

FET Testing via SCPI Commands

Performing FET I-V tests using SCPI command sequences.

FET Testing via TSP Commands

Troubleshooting and FAQs

Command Set and Interlock Troubleshooting