Section 1: Introduction  Model 2651A High Power System SourceMeter® Instrument User's Manual 
CD-ROM contents 
Two CD-ROMs are shipped with each Model 2651A order. The Model 2651A Quick Start Guide, 
User's Manual, and Reference Manual are provided in PDF format on the Model 2651A Product 
Information CD-ROM.  
•  Quick Start Guide: Provides unpacking instructions, describes basic connections, and reviews 
basic operation information. If you are new to Keithley Instruments equipment, refer to the Quick 
Start Guide to take the steps needed to unpack, set up, and verify operation. 
•  User's Manual: Provides application examples. If you need a starting point to begin creation of 
applications, refer to the User's Manual for a variety of specific examples. 
•  Reference Manual: Includes advanced operation topics and maintenance information. 
Programmers looking for a command reference, and users looking for an in-depth description of 
the way the instrument works (including troubleshooting and optimization), should refer to the 
Reference Manual.  
 
A second CD-ROM contains the Test Script Builder script development software (Keithley 
Instruments part number KTS-850). Use this CD-ROM to install the Test Script Builder Integrated 
Development Environment. This software not only provides an environment to develop a test 
program, but also the ability to load the test program onto the instrument. Running a program loaded 
on the instrument eliminates the need to send individual commands from the host computer to the 
instrument when running a test. 
 
Organization of manual sections 
Bookmarks for each manual section have been provided in the PDF (see Adobe
®
 Acrobat
®
 or 
Reader
®
 help for information about bookmarks). The manual sections are also listed in the Table of 
Contents located at the beginning of this manual. 
 
Model 2651A applications 
In addition to being a stand-alone instrument, the Keithley Instruments Model 2651A High Power 
System SourceMeter
®
 Instrument can intelligently connect to other instruments and multiple devices. 
This manual provides application examples that guide you through several common 
instrument-to-instrument scenarios. These applications are presented after the summary information 
about the High Power System SourceMeter
®
 Instrument, and include: 
•  Making basic front-panel measurements (on page 4-1): Demonstrates the basic measurement 
function using a single Model 2651A and a two-terminal device under test (DUT). 
 
•  Capturing high power pulse waveforms (on page 5-1)Capturing high power pulse waveforms: 
Demonstrates how to use the Keithley Instruments Model 2651A connected to a control 
computer. This example introduces configuration of the instrument's trigger model to make 
high-speed measurements of an LED. 
 
1-2  2651A-900-01 Rev. A / March 2011