Keithley SourceMeter 2460 User Manual
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Keithley SourceMeter 2460 User Manual

High-current interactive sourcemeter instrument
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Model 2460 High-Current
Interactive SourceMeter
User's Manual
2460-900-01 Rev. A / September 2014
洛克儀器股份有限公司
(台北公司) 新北市中和區中正路 764 號 6 樓 TEL: (02)32346000
(新竹公司) 新竹市光復路 2 段 295 號 15 樓之 7 TEL: (03)5721717
htt p:/ /w ww. l ock in c .co m.t w
網站:
*P246090001A*
2460-900-01A
A Great er Me a s ure of C on f i de nc e
Lock Instrument Co. Ltd
Instrument
www.keithley.com

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Summary of Contents for Keithley SourceMeter 2460

  • Page 1 Model 2460 High-Current Interactive SourceMeter Instrument  User’s Manual 2460-900-01 Rev. A / September 2014 洛克儀器股份有限公司 Lock Instrument Co. Ltd (台北公司) 新北市中和區中正路 764 號 6 樓 TEL: (02)32346000 (新竹公司) 新竹市光復路 2 段 295 號 15 樓之 7 TEL: (03)5721717 htt p:/ /w ww.
  • Page 3 , and TSP-Net are trademarks of Keithley Instruments. All Keithley Instruments product names are trademarks or registered trademarks of Keithley Instruments. Other brand names are trademarks or registered trademarks of their respective holders. The Lua 5.0 software and associated documentation files are copyright © 1994 - 2013, Tecgraf, PUC-Rio.

  • Page 5: Safety Precautions

    Keithley Instruments products are designed for use with electrical signals that are measurement, control, and data I/O connections, with low transient overvoltages, and must not be directly connected to mains voltage or to voltage sources with high transient overvoltages.
  • Page 6 (note that selected parts should be purchased only through Keithley Instruments to maintain accuracy and functionality of the product). If you are unsure about the applicability of a replacement component, call a Keithley Instruments office for information.

  • Page 7: Table Of Contents

    Table of Contents Introduction ....................... 1-1 Welcome ..........................1-1 Introduction to this manual ....................1-1 Extended warranty ....................... 1-2 Contact information ......................1-2 CD-ROM contents ........................ 1-2 Organization of manual sections ..................1-3 Applications .......................... 1-3 Using the front-panel interface ................2-1 Front panel overview ......................
  • Page 8 Table of Contents Model 2460 Interactive SourceMeter® Instrument User's Manual Making basic front-panel measurements ..............4-1 Introduction .......................... 4-1 Equipment required for this application................4-2 Device connections ......................4-2 Make front-panel measurements ..................4-2 How to make front-panel measurements .................. 4-3 Measuring low-resistance devices ................
  • Page 9 Model 2460 Interactive SourceMeter® Instrument User's Manual Table of Contents Set up remote communications ................... 8-2 Device connections ......................8-2 Solar panel characterization ....................8-4 Set up the solar panel I-V sweep from the front panel .............. 8-4 Set up the solar panel I-V sweep using SCPI commands ............8-6 Set up the solar panel I-V sweep using TSP commands ............

  • Page 11: Introduction

    This manual presents an overview of each application, followed by instructions to complete the application using the front panel, SCPI code, TSP code, or Keithley KickStart Startup Software (as appropriate for the application; some show multiple ways to complete an application).

  • Page 12: Extended Warranty

    If you have any questions after you review the information in this documentation, please contact your local Keithley Instruments office, sales partner, or distributor, or call Keithley Instruments corporate headquarters (toll-free inside the U.S. and Canada only) at 1-800-935-5595, or from outside the U.S.

  • Page 13: Organization Of Manual Sections

    2460 to perform automated battery discharge and charge cycle testing. • Generating an I-V sweep on an LED with KickStart (on page 7-1): Demonstrates how use the Model 2460 to test high-brightness light-emitting diodes (LEDs) using Keithley KickStart Startup Software. • Measuring I-V characteristics of a solar panel (on page 8-1): Demonstrates using an I-V sweep to characterize a solar panel using the Model 2460.

  • Page 15: Using The Front-Panel Interface

    Section 2 Using the front-panel interface In this section: Front panel overview ..............2-1 Power the instrument on or off ..........2-3 Turn the Model 2460 output on or off ........2-4 Touchscreen display..............2-5 Store measurements on a USB flash drive ....... 2-7 Saving screen captures to a USB flash drive ......
  • Page 16 Note that 1588 functionality is not supported at this time. This functionality will be made available with a firmware update. See the Model 2460 Release Notes on the Keithley Instruments website (http://www.keithley.com) for details. INTERLOCK LED Illuminates when the interlock is enabled.

  • Page 17: Power The Instrument On Or Off

    Model 2460 Interactive SourceMeter® Instrument User's Manual Section 2: Using the front-panel interface Power the instrument on or off Follow the steps below to connect the Model 2460 to line power and turn on the instrument. The Model 2460 operates from a line voltage of 100 V to 240 V at a frequency of 50 Hz or 60 Hz. It automatically senses line voltage.

  • Page 18: Turn The Model 2460 Output On Or Off

    Section 2: Using the front-panel interface Model 2460 Interactive SourceMeter® Instrument User's Manual To turn a Model 2460 on or off: 1. Before turning the instrument on, disconnect any devices under test (DUTs) from the Model 2460. 2. To turn your instrument on, press the front-panel POWER switch to place it in the on (|) position. The instrument displays a status bar as it powers on.

  • Page 19: Touchscreen Display

    Model 2460 Interactive SourceMeter® Instrument User's Manual Section 2: Using the front-panel interface Touchscreen display The touchscreen display gives you quick front-panel access to source and measure settings, system configuration, instrument and test status, reading buffer information, and other instrument functionality.
  • Page 20 Section 2: Using the front-panel interface Model 2460 Interactive SourceMeter® Instrument User's Manual To disable or enable a setting, select the box next to the setting so that it shows an X (disabled) or a check mark (enabled). STATISTICS swipe screen The STATISTICS swipe screen contains information about the state of the active buffer and the readings in it.

  • Page 21: Menu Overview

    Model 2460 Interactive SourceMeter® Instrument User's Manual Section 2: Using the front-panel interface Menu overview To access the main menu, press the MENU key on the Model 2460 front panel. The figure below shows the organization of the main menu. Figure 8: Model 2460 main menu The main menu includes submenus, which are labeled in green across the top of the display.

  • Page 22: Saving Screen Captures To A Usb Flash Drive

    Section 2: Using the front-panel interface Model 2460 Interactive SourceMeter® Instrument User's Manual Saving screen captures to a USB flash drive You can save the content of the front-panel display to a graphic file. The instrument saves these graphic files, also known as screen captures, in sequentially numbered files to the USB flash drive. To save the screen capture: 1.

  • Page 23: Using A Remote Interface

    Section 3 Using a remote interface In this section: Remote communications interfaces.......... 3-1 Supported remote interfaces ............ 3-1 GPIB communications .............. 3-2 LAN communications..............3-4 USB communications ............... 3-6 Using the web interface ............3-12 Determining the command set you will use ......3-15 Remote communications interfaces You can choose from one of several communications interfaces to send commands to and receive responses from the Model 2460.

  • Page 24: Gpib Communications

    Install the GPIB driver software Check the documentation for your GPIB controller for information about where to acquire drivers. Keithley Instruments also recommends that you check the website of the GPIB controller for the latest version of drivers or software.

  • Page 25: Set The Gpib Address

    To avoid possible mechanical damage, stack no more than three connectors on any one instrument. To minimize interference caused by electromagnetic radiation, use only shielded GPIB cables. Contact Keithley Instruments for shielded cables. Figure 10: Model 2460 IEEE-488 connections Set the GPIB address The default GPIB address is 18.

  • Page 26: Lan Communications

    Section 3: Using a remote interface Model 2460 Interactive SourceMeter® Instrument User's Manual To set the GPIB address from the front panel: 1. Press the MENU key. 2. Under System, select Communication. The SYSTEM COMMUNICATION window opens. 3. Select the GPIB tab. 4.

  • Page 27: Set Up Lan Communications On The Computer

    Model 2460 Interactive SourceMeter® Instrument User's Manual Section 3: Using a remote interface To set up automatic IP address selection using the front panel: 1. From the Home screen, press MENU. 2. Under System, select Communication. 3. Select the LAN tab. 4.

  • Page 28: Usb Communications

    USB communications To use the rear-panel USB port, you must have the Virtual Instrument Software Architecture (VISA) layer on the host computer. See "How to install the Keithley I/O Layer" in the Model 2460 Reference Manual for more information. VISA contains a USB-class driver for the USB Test and Measurement Class (USBTMC) protocol that, ®...

  • Page 29: Connect A Computer To The Model 2460 Using Usb

    INSTR: Use the USBTMC protocol To determine these parameters, you can run the Keithley Configuration Panel, which automatically detects all instruments connected to the computer. If you installed the Keithley I/O Layer, you can access the Keithley Configuration Panel through the ® ®...
  • Page 30 Model 2460 Interactive SourceMeter® Instrument User's Manual To use the Keithley Configuration Panel to determine the VISA resource string: 1. Click Start > All Programs > Keithley Instruments > Keithley Configuration Panel. The Select Operation dialog box is displayed. Figure 11: Select Operation dialog box 2.
  • Page 31 Model 2460 Interactive SourceMeter® Instrument User's Manual Section 3: Using a remote interface 3. Click Next. The Select Communication Bus dialog box is displayed. Figure 12: Select Communication Bus dialog box 4. Select USB. 5. Click Next. The Select Instrument Driver dialog box is displayed. 2460-900-01 Rev.
  • Page 32 Section 3: Using a remote interface Model 2460 Interactive SourceMeter® Instrument User's Manual Figure 13: Select Instrument Driver dialog box 6. Select Auto-detect Instrument Driver - Model. 7. Click Next. The Configure USB Instrument dialog box is displayed with the detected instrument VISA resource string visible.
  • Page 33 9. In the Virtual Instrument Name box, enter a name that you want to use to refer to the instrument. 10. Click Finish. 11. Click Cancel to close the Wizard. 12. Save the configuration. From the Keithley Configuration Panel, select File > Save. 2460-900-01 Rev. A / September 2014 3-11...

  • Page 34: Using The Web Interface

    Model 2460 Interactive SourceMeter® Instrument User's Manual Verify the instrument through the Keithley Communicator: 1. Click Start > All Programs > Keithley Instruments > Keithley Communicator. 2. Select File > Open Instrument to open the instrument you just named. Figure 15: Keithley Communicator Open an Instrument 3.

  • Page 35: Lan Troubleshooting Suggestions

    Model 2460 Interactive SourceMeter® Instrument User's Manual Section 3: Using a remote interface LAN troubleshooting suggestions If you are unable to connect to the web interface of the instrument, check the following items: • Verify that the network cable is in the LAN port on the rear panel of the instrument, not one of the ®...

  • Page 36: Web Interface Home Page

    Section 3: Using a remote interface Model 2460 Interactive SourceMeter® Instrument User's Manual Web interface Home page Figure 16: Model 2460 web page The Home page of the instrument provides information about the instrument. It includes: • The instrument model number, manufacturer, serial number, and firmware revision number. •...

  • Page 37: Identify The Instrument

    TSP: A programming language that you can use to send individual commands or use to combine commands into scripts. You cannot combine the command sets. As delivered from Keithley Instruments, the Model 2460 is set to work with the Model 2460 SCPI command set. Using the front panel: 1.
  • Page 38 Section 3: Using a remote interface Model 2460 Interactive SourceMeter® Instrument User's Manual To change to the SCPI command set from a remote interface: Send the command: *LANG SCPI Reboot the instrument. To change to the TSP command set from a remote interface: Send the command: *LANG TSP Reboot the instrument.

  • Page 39: Making Basic Front-Panel Measurements

    Section 4 Making basic front-panel measurements In this section: Introduction ................4-1 Equipment required for this application ........4-2 Device connections ..............4-2 Make front-panel measurements ..........4-2 Introduction You can use the Model 2460 to source voltage or current and make measurements from the front panel.

  • Page 40: Equipment Required For This Application

    Model 2460 Interactive SourceMeter instrument • Two insulated banana cables; you can use the set that is provided with the Model 2460, the Keithley Instruments Model 8608 High-Performance Clip Lead Set • One 10 kΩ resistor to test Device connections Turn the power to the instrument off before attaching connections to the Model 2460.

  • Page 41: How To Make Front-Panel Measurements

    Model 2460 Interactive SourceMeter® Instrument User's Manual Section 4: Making basic front-panel measurements How to make front-panel measurements To make a measurement from the front panel: 1. Press the POWER switch on the front panel to turn on the instrument or cycle power if the instrument is already on.

  • Page 43: Measuring Low-Resistance Devices

    ® One Model 2460 Interactive SourceMeter instrument • For front-panel connections, use four insulated banana cables such as the Keithley Instruments Model 8608 High-Performance Clip Lead Set (one set included with the Model 2460; you will need another set) •...

  • Page 44: Device Connections

    Section 5: Measuring low-resistance devices Model 2460 Interactive SourceMeter® Instrument User's Manual Figure 18: Model 2460 remote interface connections Device connections To provide the best measurement accuracy, use the four-wire (Kelvin) measurement method for this test. This method eliminates the effects of lead resistance on the measurement accuracy. It is the preferred method when measuring low resistances.
  • Page 45 Model 2460 Interactive SourceMeter® Instrument User's Manual Section 5: Measuring low-resistance devices Hazardous voltages may be present on all output and guard terminals. To prevent electrical shock that could cause injury or death, never make or break connections to the Model 2460 while the output is on.
  • Page 46 The figure below shows the front-panel connections. You can make these connections with four insulated banana cables that are rated to the maximum current (7 A) such as two sets of the Keithley Instruments Model 8608 High-Performance Clip Lead Set.

  • Page 47: Low-Resistance Measurements

    Model 2460 Interactive SourceMeter® Instrument User's Manual Section 5: Measuring low-resistance devices Low-resistance measurements This application demonstrates how to use the Model 2460 to measure a low-resistance device. You can measure from the front panel or over the remote interface using SCPI code or TSP code. For this application, you will: •...

  • Page 48: View The Measurements On The Front-Panel Trend Swipe Screen

    Section 5: Measuring low-resistance devices Model 2460 Interactive SourceMeter® Instrument User's Manual View the measurements on the front-panel TREND swipe screen You can view the resistance measurements as a function of time on the front-panel TREND swipe screen. To access the TREND swipe screen, swipe the bottom part of the Home screen to the right. A graph similar to the one in the figure below is displayed.

  • Page 49: Set Up The Low-Resistance 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 the Keithley Instruments website. 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”...
  • Page 50 Section 5: Measuring low-resistance devices Model 2460 Interactive SourceMeter® Instrument User's Manual Send the following commands for this example application: --Reset the instrument to the default settings reset() --Configure the Simple Loop trigger model template to make 100 readings. trigger.model.load("SimpleLoop", 100) --Change the view on the front panel to the TREND swipe screen.

  • Page 51: Rechargeable Battery Measurements

    (Ni-Cd), nickel metal hydride (Ni-MH), lithium ion (Li-ion), rechargeable alkaline, and lead acid. If you are working with a battery type that is not listed here, please contact your local Keithley office, sales partner, or distributor, or call one of our Applications Engineers to get technical assistance.
  • Page 52 Section 6: Rechargeable battery measurements Model 2460 Interactive SourceMeter® Instrument User's Manual For both the charging and discharging cycles, you configure the Model 2460 to source voltage and measure current. The following figures show simplified schematics for the charge and discharge cycles.

  • Page 53: Equipment Required

    One Model 2460 High-Current Interactive SourceMeter instrument • For front-panel connections, use four insulated banana cables such as the Keithley Instruments Model 8608 High-Performance Clip Lead Set (one set included with the Model 2460; you will need another set) •...

  • Page 54: Device Connections

    Section 6: Rechargeable battery measurements Model 2460 Interactive SourceMeter® Instrument User's Manual Device connections To set up the test, connect the Model 2460 to the battery as shown in the following figure. Make a 4-wire (remote sense) connection from the instrument terminals to the battery to eliminate the effects of the lead resistance.
  • Page 55 The figure below shows the front-panel connections. You can make these connections with four insulated banana cables that are rated to the maximum current (7 A) such as two sets of the Keithley Instruments Model 8608 High-Performance Clip Lead Set.

  • Page 56: Automated Battery Charge And Discharge Cycle Testing

    Section 6: Rechargeable battery measurements Model 2460 Interactive SourceMeter® Instrument User's Manual Automated battery charge and discharge cycle testing Battery charge and discharge cycles often take several hours, so automating the test is important. This example demonstrates how to use the Model 2460 to perform an automated battery discharge test using SCPI commands or TSP commands.

  • Page 57: Set Up Remote Communications

    Model 2460 Interactive SourceMeter® Instrument User's Manual Section 6: Rechargeable battery measurements Set up remote communications This application is configured to run remotely. You can run this application from any of the supported communication interfaces for the instrument (GPIB, USB, or ethernet). The following figure shows the rear-panel connection locations for the remote communication interfaces.
  • Page 58 Section 6: Rechargeable battery measurements Model 2460 Interactive SourceMeter® Instrument User's Manual Send the following commands for this example application: Commands Description command or pseudocode • OUTP:SMOD HIMP Turn on high-impedance output mode. • command Set to 4-wire sense mode. SENS:CURR:RSEN ON •...

  • Page 59: Set Up The Battery 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 the Keithley Instruments website. 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”...
  • Page 60 Section 6: Rechargeable battery measurements Model 2460 Interactive SourceMeter® Instrument User's Manual Send the following TSP commands for this example application: --This code discharges a 2500 mAH 1.2 V battery to 0.9 V with a --discharge current of 2.5A (1C). --Before using this code, reset the instrument from the front panel --and set the output-off state of the Model 2460 to High Impedance --(High Z).
  • Page 61 Model 2460 Interactive SourceMeter® Instrument User's Manual Section 6: Rechargeable battery measurements FileNumber = file.open("/usb1/TestData.csv", file.MODE_WRITE) file.write(FileNumber,"Current,Voltage,Seconds\n") --Print the measured values in a four-column format. print("nIteration:\tCurrent:\tVoltage:\tTime:\n") for i = 1, defbuffer1.n do print(i, defbuffer1[i], defbuffer1.sourcevalues[i], defbuffer1.relativetimestamps[i]) file.write(FileNumber, string.format("%g,%g, %g\r\n",defbuffer1.readings[i], defbuffer1.sourcevalues[i],defbuffer1.relativetimestamps[i])) --Close the .csv file.

  • Page 63: Generating An I-V Sweep On An Led With Kickstart

    • ® One Model 2460 High-Current Interactive SourceMeter instrument • Keithley KickStart Startup Software version 1.4 or later, installed on your computer; you can download the KickStart software from the Keithley Instruments support website (http://www.keithley.com/support) • For front-panel connections, use four insulated banana cables such as the Keithley Instruments Model 8608 High-Performance Clip Lead Set (one set included with the Model 2460;...

  • Page 64: Set Up Remote Communications

    Section 7: Generating an I-V sweep on an LED with KickStart Model 2460 Interactive SourceMeter® Instrument User's Manual Set up remote communications This application is configured to run remotely. You can run this application from any of the supported communication interfaces for the instrument (GPIB, USB, or ethernet). The following figure shows the rear-panel connection locations for the remote communication interfaces.
  • Page 65 The figure below shows the front-panel connections. You can make these connections with four insulated banana cables that are rated to the maximum current (7 A) such as two sets of the Keithley Instruments Model 8608 High-Performance Clip Lead Set.

  • Page 66: Generating An I-V Sweep Using Kickstart

    Section 7: Generating an I-V sweep on an LED with KickStart Model 2460 Interactive SourceMeter® Instrument User's Manual Figure 34: Model 2460 4-wire rear-panel connections to an LED Generating an I-V sweep using KickStart This example application uses Keithley KickStart Startup Software to generate a current-voltage sweep on a high-brightness LED. In this example application, you will: •...
  • Page 67 KickStart does that for you). You can also use the default location for KickStart projects, which is C:\Users\My Documents\Keithley Instruments\KickStart. 4. Enter a name for the test and click Save. The test is saved as a .kst file in a folder with the name of the test project.
  • Page 68 Section 7: Generating an I-V sweep on an LED with KickStart Model 2460 Interactive SourceMeter® Instrument User's Manual Figure 36: Select instrument in the Instrument Configuration panel 7. At the bottom of the screen, click Select Test Type. The Test Types panel opens on the left side of the screen, showing the available test types.
  • Page 69 Model 2460 Interactive SourceMeter® Instrument User's Manual Section 7: Generating an I-V sweep on an LED with KickStart Figure 37: Selecting the test type 8. Right-click the IV Characterizer test type and select Add Test Type. The Source Measure Settings window opens. Figure 38: KickStart source and measure settings screen 2460-900-01 Rev.

  • Page 70: Run The Test And View The Graph

    Section 7: Generating an I-V sweep on an LED with KickStart Model 2460 Interactive SourceMeter® Instrument User's Manual 9. Use the values in the following tables to specify the source and measure parameters for this example test (you can change these values for your own application). Source settings Parameter Value...

  • Page 71: View And Save The Test Data In Tabular Form

    Model 2460 Interactive SourceMeter® Instrument User's Manual Section 7: Generating an I-V sweep on an LED with KickStart Figure 39: Results of running an I-V sweep on a high-brightness LED To save the graph as a .png file, click Graph Image in the Export Data/Graph area of the ribbon at the top of the screen.

  • Page 73: Measuring I-V Characteristics Of A Solar Panel

    ® One Model 2460 Interactive SourceMeter instrument • For front-panel connections, use four insulated banana cables such as the Keithley Instruments Model 8608 High-Performance Clip Lead Set (one set included with the Model 2460; you will need another set) •...

  • Page 74: Set Up Remote Communications

    Section 8: Measuring I-V characteristics of a solar panel Model 2460 Interactive SourceMeter® Instrument User's Manual Set up remote communications You can run this application from the front panel or any of the supported communication interfaces for the instrument (GPIB, USB, or ethernet). The following figure shows the rear-panel connection locations for the remote communication interfaces.
  • Page 75 The figure below shows the front-panel connections. You can make these connections with four insulated banana cables that are rated to the maximum current (7 A) such as two sets of the Keithley Instruments Model 8608 High-Performance Clip Lead Set.

  • Page 76: Solar Panel Characterization

    Section 8: Measuring I-V characteristics of a solar panel Model 2460 Interactive SourceMeter® Instrument User's Manual Solar panel characterization This application demonstrates how to use the Model 2460 to characterize a solar panel. The examples show how to use the front panel, SCPI code over a remote interface, and TSP code over a remote interface.
  • Page 77 Model 2460 Interactive SourceMeter® Instrument User's Manual Section 8: Measuring I-V characteristics of a solar panel 7. Press the MENU key. 8. Under Measure, select Settings. 9. Select the button next to Sense Mode and select 4-Wire Sense. 10. Press the MENU key. 11.

  • Page 78: Set Up The Solar Panel I-V Sweep Using Scpi 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 the Keithley Instruments website. 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”...
  • Page 79 Model 2460 Interactive SourceMeter® Instrument User's Manual Section 8: Measuring I-V characteristics of a solar panel Send the following commands for this example application: --Define the number of points in the sweep. num = 115 --Reset the Model 2460 and clear the buffer. reset() --Set the source and measure functions.
  • Page 80 Section 8: Measuring I-V characteristics of a solar panel Model 2460 Interactive SourceMeter® Instrument User's Manual In the example above, the instrument is programmed to display custom text on the USER swipe screen using the display.changescreen and display.settext commands. After the test is finished, the display will indicate the maximum power (P ), the short circuit current (I ), and the...

  • Page 81: Generating A High-Current Pulse Train

    One Model 2460 High-Current Interactive SourceMeter instrument • For front-panel connections, use four insulated banana cables such as the Keithley Instruments Model 8608 High-Performance Clip Lead Set (one set included with the Model 2460; you will need another set) •...

  • Page 82: Set Up Remote Communications

    Section 9: Generating a high-current pulse train Model 2460 Interactive SourceMeter® Instrument User's Manual Set up remote communications This application is configured to run remotely. You can run this application from any of the supported communication interfaces for the instrument (GPIB, USB, or ethernet). The following figure shows the rear-panel connection locations for the remote communication interfaces.
  • Page 83 The figure below shows the front-panel connections. You can use four insulated banana cables that are rated to a maximum current of at least 7 A, such as two sets of the Keithley Instruments Model 8608 High-Performance Clip Lead Set (one set is included with the Model 2460).

  • Page 84: High-Speed, High-Current Pulses From A Remote Interface

    Section 9: Generating a high-current pulse train Model 2460 Interactive SourceMeter® Instrument User's Manual Figure 51: Model 2460 4-wire connections to the rear panel High-speed, high-current pulses from a remote interface In this application, the Model 2460 is configured from a remote interface to generate a high-current ®...

  • Page 85: Define The Pulse Test Parameters

    Model 2460 Interactive SourceMeter® Instrument User's Manual Section 9: Generating a high-current pulse train Define the pulse test parameters The following pulse test parameters, which define the magnitude and timing of the pulse, are used in this example application. The actual values for these test parameters will vary depending on your specific application.

  • Page 86: Set Up The Source And Measure Functions

    Section 9: Generating a high-current pulse train Model 2460 Interactive SourceMeter® Instrument User's Manual The following figure illustrates these test parameters. Figure 52: Timing diagram for the example Set up the source and measure functions To generate high-speed, high-current pulses and measure the voltage during each pulse, it is important to configure the measure and source functions appropriately.
  • Page 87 Model 2460 Interactive SourceMeter® Instrument User's Manual Section 9: Generating a high-current pulse train Figure 53: TriggerFlow diagram used to generate a pulse train The trigger model recalls the values in the source configuration list, triggers the voltage measurement during the pulse level, and provides accurate timing of the pulse width and period using two trigger event timers (event timer 1 and event timer 2).

  • Page 88: Tsp Commands To Output A High-Current Pulse Train

    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 the Keithley Instruments website. 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”...
  • Page 89 Model 2460 Interactive SourceMeter® Instrument User's Manual Section 9: Generating a high-current pulse train smu.source.configlist.store("OutputList") --Set to biaslevel and save settings to the configuration list. smu.source.level = biaslevel smu.source.configlist.store("OutputList") --Set up the timers. --[[Set timer[1] to control the period of the pulse train. The effective count will be points because trigger.timer[1].start.generate = trigger.ON trigger.timer[1].reset() trigger.timer[1].start.generate = trigger.ON...
  • Page 90 Section 9: Generating a high-current pulse train Model 2460 Interactive SourceMeter® Instrument User's Manual Figure 54: Oscilloscope view of ten 1 ms, 6 A pulses into a 1 Ω load with a period of 4 ms The voltage measurements made during each pulse are saved in the buffer. You can send this data to a remote interface using an appropriate print or printbuffer command, or it can be viewed from the front-panel Data Sheet (press the MENU key and select Sheet).

  • Page 91: Troubleshooting Faqs

    2460. For additional FAQs, please see the "Frequently Asked Questions (FAQs)" section of the Model 2460 Reference Manual. Where can I find updated drivers? For the latest drivers and additional support information, see the Keithley Instruments support website. To see what drivers are available for your instrument: 1.

  • Page 92: How Do I Upgrade The Firmware

    11. When the upgrade is complete, reboot the instrument. A message is displayed while the upgrade is in progress. Upgrade files are available on the Keithley Instruments website (http://www.keithley.com). Why can't the Model 2460 read my USB flash drive? Verify that the flash drive is formatted with the FAT file system. The Model 2460 only supports FAT drives.

  • Page 93: Why Am I Getting A 5074 Event Code

    Model 2460 Interactive SourceMeter® Instrument User's Manual Section 10: Troubleshooting FAQs You cannot combine the command sets. As delivered from Keithley Instruments, the Model 2460 is set to work with the Model 2460 SCPI command set. To set the command set from the front panel: 1.

  • Page 94: How Do I Save The Present State Of The Instrument

    Section 10: Troubleshooting FAQs Model 2460 Interactive SourceMeter® Instrument User's Manual How do I save the present state of the instrument? You can save the settings in the instrument as a script using the front-panel menus or from a remote interface.

  • Page 95: What Are The Quick Setup Options

    Model 2460 Interactive SourceMeter® Instrument User's Manual Section 10: Troubleshooting FAQs What are the Quick Setup options? The QUICKSET key opens a screen that provides access to function selection, performance adjustments, and quick setups. The Function button on the Quickset menu allows you to select a source or measure function. The options are the same as those available when you use the front-panel FUNCTION key.

  • Page 97: Next Steps

    Additional Model 2460 information ® This manual has prepared you to start using your new Model 2460 Interactive SourceMeter instrument for your application. For more detailed information, refer to the Keithley Instruments Model 2460 Reference Manual. ® For related documentation, software tools, and drivers, see the Model 2460 Interactive SourceMeter instrument Product Information CD-ROM.

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