www.keithley.com Model DMM7510 7½ Digit Graphical Sampling Multimeter User’s Manual DMM7510-900-01 Rev.
Model DMM7510 7½ Digit Multimeter User's Manual © 2015, Keithley Instruments Cleveland, Ohio, U.S.A. All rights reserved. Any unauthorized reproduction, photocopy, or use of the information herein, in whole or in part, without the prior written approval of Keithley Instruments is strictly prohibited. ® ® ® TSP , TSP-Link , and TSP-Net are trademarks of Keithley Instruments. All Keithley Instruments product names are trademarks or registered trademarks of Keithley Instruments, Inc.
Safety precautions The following safety precautions should be observed before using this product and any associated instrumentation. Although some instruments and accessories would normally be used with nonhazardous voltages, there are situations where hazardous conditions may be present. This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury.
accessories are used in a manner not specified in the operating instructions, the protection provided by the equipment may be impaired. Do not exceed the maximum signal levels of the instruments and accessories, as defined in the specifications and operating information, and as shown on the instrument or test fixture panels, or switching card. When fuses are used in a product, replace with the same type and rating for continued protection against fire hazard.
Table of Contents Introduction ............................................................................................................... 1-1 Welcome .............................................................................................................................. 1-1 Introduction to this manual ................................................................................................... 1-1 Extended warranty ............................................................................
Table of Contents Model DMM7510 7½ Digit Multimeter User's Manual Set up LAN communications on the instrument ........................................................................ 3-5 Set up LAN communications on the computer .......................................................................... 3-6 USB communications ........................................................................................................... 3-7 Connect a computer to the Model DMM7510 using USB ....................
Model DMM7510 7½ Digit Multimeter User's Manual Using TSP ................................................................................................................................. 7-5 Test results................................................................................................................................ 7-6 Grading and binning resistors ................................................................................. 8-1 Introduction ............................................
Table of Contents Model DMM7510 7½ Digit Multimeter User's Manual Next steps ............................................................................................................... 12-1 Additional Model DMM7510 information ............................................................................ 12-1 Index ...........................................................................................................................
Section 1 Introduction In this section: Welcome .................................................................................. 1-1 Introduction to this manual ....................................................... 1-1 Extended warranty ................................................................... 1-2 Contact information .................................................................. 1-2 CD-ROM contents ....................................................................
Section 1: Introduction Model DMM7510 7½ Digit Multimeter User's Manual Extended warranty Additional years of warranty coverage are available on many products. These valuable contracts protect you from unbudgeted service expenses and provide additional years of protection at a fraction of the price of a repair. Extended warranties are available on new and existing products. Contact your local Keithley Instruments office, sales partner, or distributor for details.
Model DMM7510 7½ Digit Multimeter User's Manual Section 1: Introduction • Troubleshooting FAQs (on page 11-1): Provides answers to frequently asked questions to help you troubleshoot common problems encountered with the Model DMM7510. • Next steps (on page 12-1): Provides information about additional resources that can help you use the Model DMM7510. The PDF version of this manual contains bookmarks for each section.
Section 2 Using the front-panel interface In this section: Front-panel overview ................................................................ 2-1 Instrument power ...................................................................... 2-4 Touchscreen display................................................................. 2-5 Interactive swipe screens ......................................................... 2-7 Menu overview .......................................................................
Section 2: Using the front-panel interface 2-2 Model DMM7510 7½ Digit Multimeter User's Manual MENU key Opens the main menu. Press the icons on the main menu to open measure, view, trigger, script, and system screens. For details, refer to Menu overview (on page 2-13). QUICKSET key Opens a menu of preconfigured setups, including Voltage Waveform, Interval Measure, Current Waveform, and External Scan. Also allows you to choose measure functions and adjust performance for better resolution or speed.
Model DMM7510 7½ Digit Multimeter User's Manual Section 2: Using the front-panel interface TRIGGER key Accesses trigger-related settings and operations. The action of the TRIGGER key depends on the instrument state. REMOTE LED indicator Illuminates when the instrument is controlled through a remote interface. LAN LED indicator Illuminates when the instrument is connected to a local area network (LAN). 1588 LED indicator Illuminates when the instrument is connected to an IEEE-1588 compliant device.
Section 2: Using the front-panel interface FRONT/REAR TERMINALS switch Model DMM7510 7½ Digit Multimeter User's Manual Activates the terminals on the front or rear panel. When the front-panel terminals are active, a green "F" is visible to the left of the FRONT/REAR switch. When the rear-panel terminals are active, a yellow "R" is visible to the left of the switch. Instrument power Follow the steps below to connect the Model DMM7510 to line power and turn on the instrument.
Model DMM7510 7½ Digit Multimeter User's Manual Section 2: Using the front-panel interface Touchscreen display The touchscreen display gives you quick front-panel access to measure settings, system configuration, instrument and test status, reading buffer information, and other instrument functionality. The display has multiple swipe screens that you can access by swiping the front panel. You can access additional interactive screens by pressing the front-panel MENU, QUICKSET, and FUNCTION keys.
Section 2: Using the front-panel interface Model DMM7510 7½ Digit Multimeter User's Manual Enter information Some of the menu options open a keypad or keyboard that you can use to enter information. For example, if you are setting the GPIB address from the front panel, you see the keypad shown in the following figure. Figure 2: Front-panel keyboard for GPIB Address entry You can enter information by touching the screen to select characters and options from the keypad or keyboard.
Model DMM7510 7½ Digit Multimeter User's Manual Section 2: Using the front-panel interface Adjust the backlight brightness and dimmer You can adjust the brightness of the Model DMM7510 touchscreen display and buttons from the front panel or over a remote interface. You can also set the backlight to dim after a specified time has passed with no front-panel activity (available from the front-panel display only).
Section 2: Using the front-panel interface Model DMM7510 7½ Digit Multimeter User's Manual Swipe screen heading bar The heading bar of the swipe screen contains the following options. Figure 4: Model DMM7510 swipe screens, maximized and minimized 2-8 # Screen element Description 1 Minimize indicator You can swipe down to minimize the swipe screens. 2 Swipe screen indicator Each circle represents one swipe screen.
Model DMM7510 7½ Digit Multimeter User's Manual Section 2: Using the front-panel interface FUNCTIONS swipe screen The FUNCTIONS swipe screen highlights the selected measure function and allows you to select a different function. Figure 5: FUNCTIONS swipe screen SETTINGS swipe screen The SETTINGS swipe screen gives you front-panel access to some instrument settings for the selected measure function. It shows you the present settings and allows you to change them.
Section 2: Using the front-panel interface Model DMM7510 7½ Digit Multimeter User's Manual STATISTICS swipe screen The STATISTICS swipe screen contains information about the readings in the active reading buffer. When the reading buffer is configured to fill continuously and overwrite older data with new data, the buffer statistics include the data that was overwritten.
Model DMM7510 7½ Digit Multimeter User's Manual Section 2: Using the front-panel interface SECONDARY swipe screen The SECONDARY swipe screen allows you to display the results of two measurements on the front-panel display. To start displaying secondary measurements, select the Second Function and select Secondary Measure. Secondary measurements are only available in Continuous Measurement Mode and Manual Trigger Mode.
Section 2: Using the front-panel interface Model DMM7510 7½ Digit Multimeter User's Manual USER swipe screen You can program custom text that appears on the USER swipe screen. For example, you can program the Model DMM7510 to show that a test is in process. Refer to "Customizing a message for the USER swipe screen" in the Model DMM7510 Reference Manual.
Model DMM7510 7½ Digit Multimeter User's Manual Section 2: Using the front-panel interface Menu overview To access the main menu, press the MENU key on the Model DMM7510 front panel. The figure below shows the organization of the main menu. Figure 11: Model DMM7510 main menu The main menu includes submenus that are labeled in green across the top of the display. Touching an icon in a submenu opens an interactive screen.
Section 2: Using the front-panel interface Model DMM7510 7½ Digit Multimeter User's Manual Views menu The Views menus allow you to select, configure, and view data that was gathered from measure operations. The Graph menu opens a screen that displays a graph of the measurements in selected reading buffers as traces. It also contains tabs that you use to customize the graph display. You can also select the trigger mode and initiate the trigger model from this screen.
Model DMM7510 7½ Digit Multimeter User's Manual Section 2: Using the front-panel interface Scripts menu The Scripts menus allow you to configure, run, and manage scripts from the front panel. Scripts are blocks of commands that the instrument can run as a group. The Run menu contains a list of scripts that you can select to run immediately. You can also copy a script to a script that runs each time the instrument power is turned on.
Section 2: Using the front-panel interface Model DMM7510 7½ Digit Multimeter User's Manual The Calibration menu allows you to start or manage auto calibration. Auto calibration removes measurement errors that are caused by the effects of temperature and time on components. You can also review factory adjustment and verification dates. The Info/Manage menu gives you access to version and serial number information and settings for instrument firmware and reset functions. 2-16 DMM7510-900-01 Rev.
Section 3 Using a remote interface In this section: Remote communications interfaces.......................................... 3-1 Supported remote interfaces .................................................... 3-2 GPIB communications .............................................................. 3-2 LAN communications................................................................ 3-5 USB communications ............................................................... 3-7 Using the web interface ..........
Section 3: Using a remote interface Model DMM7510 7½ Digit Multimeter User's Manual Supported remote interfaces The Model DMM7510 supports the following remote interfaces: • • • • GPIB: IEEE-488 instrumentation general purpose interface bus Ethernet: Local area network ethernet communications USB: Type B USB port TSP-Link: A high-speed trigger synchronization and communications bus that test system builders can use to connect multiple instruments in a master-and-subordinate configuration For details ab
Model DMM7510 7½ Digit Multimeter User's Manual Section 3: Using a remote interface 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. It is important that you install the drivers before you connect the hardware. This prevents associating the incorrect driver to the hardware.
Section 3: Using a remote interface Model DMM7510 7½ Digit Multimeter User's Manual Figure 14: Instrument GPIB connections Set the GPIB address The default GPIB address is 16. You can set the address to any address from 1 to 30 if it is unique in the system. This address cannot conflict with an address that is assigned to another instrument or to the GPIB controller. GPIB controllers are usually set to 0 or 21. To be safe, do not configure any instrument to have an address of 21.
Model DMM7510 7½ Digit Multimeter User's Manual Section 3: Using a remote interface LAN communications You can communicate with the instrument using a local area network (LAN). When you connect using a LAN, you can use a web browser to access the internal web page of the instrument and change some of the instrument settings. For more information, see Using the web interface (on page 3-11). The Model DMM7510 is an LXI version 1.
Section 3: Using a remote interface Model DMM7510 7½ Digit Multimeter User's Manual To set up automatic IP address selection using the front panel: 1. 2. 3. 4. 5. Press the MENU key. Under System, select Communication. Select the LAN tab. For TCP/IP Mode, select Auto. Select Apply Settings to save your settings. Set up manual LAN configuration If necessary, you can set the IP address on the instrument manually. You can also enable or disable the DNS settings and assign a host name to the DNS server.
Model DMM7510 7½ Digit Multimeter User's Manual Section 3: Using a remote interface Install LXI Discovery Browser software on your computer You can use the LXI Discovery Browser to identify the IP addresses of LXI-certified instruments. Once identified, you can double-click the IP address in the LXI Discovery Browser to open the web interface for the instrument. The Keithley LXI Discovery Browser is available on the Keithley Instruments website (http://www.keithley.com).
Section 3: Using a remote interface Model DMM7510 7½ Digit Multimeter User's Manual Connect a computer to the Model DMM7510 using USB To connect the Model DMM7510 to a computer using a USB connection, use Keithley Instruments Model USB-B-1, which is shipped with the instrument. Each Model DMM7510 needs its own USB cable to be connected to the computer. To connect an instrument to a computer using USB: 1. Connect the Type A end of the cable to the computer. 2.
Model DMM7510 7½ Digit Multimeter User's Manual Section 3: Using a remote interface 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 15: Select Operation dialog box 2. Select Add. 3. Click Next. The Select Communication Bus dialog box is displayed. Figure 16: Select Communication Bus dialog box 4. Select USB. 5. Click Next.
Section 3: Using a remote interface Model DMM7510 7½ Digit Multimeter User's Manual Figure 17: 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. 8. Click Next. The Name Virtual Instrument dialog box is displayed. Figure 18: Name Virtual Instrument dialog box 9. 10. 11. 12.
Model DMM7510 7½ Digit Multimeter User's Manual Section 3: Using a remote interface 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 19: Keithley Communicator Open an Instrument 3. Click OK. 4. Send a command to the instrument and see if it responds.
Section 3: Using a remote interface Model DMM7510 7½ Digit Multimeter User's Manual Connect to the instrument web interface When the LAN and instrument establish a connection, you can open a web page for the instrument. To access the web interface: 1. Open a web browser on the host computer. 2. Enter the IP address of the instrument in the address box of the web browser. For example, if the instrument IP address is 192.168.1.101, enter 192.168.1.101 in the browser address box. 3.
Model DMM7510 7½ Digit Multimeter User's Manual Section 3: Using a remote interface Figure 20: Model DMM7510 web-interface home 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. The TCP Raw Socket number and Telnet Port number. The last LXI message. The history link opens the LXI Home page. The ID button, which allows you to identify the instrument.
Section 3: Using a remote interface Model DMM7510 7½ Digit Multimeter User's Manual Identify the instrument If you have a bank of instruments, you can click the ID button to determine which one you are communicating with. To identify the instrument: In the middle of the left side of the Home page, click the ID button. The button turns green and the LAN status indicator on the instrument blinks.
Model DMM7510 7½ Digit Multimeter User's Manual Section 3: Using a remote interface To verify which command set is selected from a remote interface: Send the command: *LANG? 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. DMM7510-900-01 Rev.
Section 4 Making basic front-panel measurements In this section: Introduction .............................................................................. 4-1 Equipment required for this example........................................ 4-1 Device connections .................................................................. 4-2 Basic front-panel measurements..............................................
Section 4: Making basic front-panel measurements Model DMM7510 7½ Digit Multimeter User's Manual Device connections Connect the Model DMM7510 to the resistor in a 2-wire (local sense) configuration. In this configuration, the device is connected between the INPUT HI and INPUT LO terminals. To make the connections: 1. Power off the Model DMM7510. 2. Connect the test leads to the front-panel INPUT HI and INPUT LO terminals, as shown in the following figure. 3. Connect the test leads to the resistor.
Model DMM7510 7½ Digit Multimeter User's Manual Section 4: Making basic front-panel measurements Basic front-panel measurements The following procedures show you how to make a measurement, access settings for the measurement, and view measurement data in a reading buffer. You can make measurements continuously or manually. When you make continuous measurements, the instrument makes measurements as quickly as possible.
Section 4: Making basic front-panel measurements Model DMM7510 7½ Digit Multimeter User's Manual Using the front panel to view the contents of a reading buffer: 1. Press the MENU key. Under Views, select Reading Table. Data for the active reading buffer is displayed. Figure 23: Reading table 2. To display data for a different reading buffer, select the buffer. 3. To view a specific data point, swipe the table up or down.
Section 5 Measuring DC voltage with high accuracy In this section: Introduction .............................................................................. 5-1 Equipment required .................................................................. 5-1 Device connections .................................................................. 5-1 High-accuracy DC voltage measurements ...............................
Section 5: Measuring DC voltage with high accuracy Model DMM7510 7½ Digit Multimeter User's Manual Figure 24: Front-panel connections for high-accuracy DC voltage measurements Figure 25: Rear-panel connections for high-accuracy DC voltage measurements To prevent electric shock, test connections must be configured such that the user cannot come in contact with test leads or any device under test (DUT) that is in contact with the conductors.
Model DMM7510 7½ Digit Multimeter User's Manual Section 5: Measuring DC voltage with high accuracy High-accuracy DC voltage measurements This application demonstrates how to use the Model DMM7510 to make a high-accuracy DC voltage measurement. You can make the measurement from the front panel or over the remote interface using SCPI code or TSP code. For information about setting up remote communications, see Remote communications interfaces. For this application, you will: • • • Restart the instrument.
Section 5: Measuring DC voltage with high accuracy Model DMM7510 7½ Digit Multimeter User's Manual If measurements are not updating, press the TRIGGER key for a few seconds. Verify that the trigger mode is set to Continuous Measurement. The measurement is displayed in the top area of the Home screen. With a repeating filter count of 100 and NPLC of 10, the measurement cycle time is slow but accurate. By reducing the values of these settings, you can get faster but less accurate readings.
Model DMM7510 7½ Digit Multimeter User's Manual Section 5: Measuring DC voltage with high accuracy 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.
Section 5: Measuring DC voltage with high accuracy Model DMM7510 7½ Digit Multimeter User's Manual Test results The following table shows the tradeoff between accuracy and speed of measurements based on the integration rate (NPLC), averaging filter, and autozero settings. The first row of data is from the setup documented in this example. The other rows show the results if the integration rate, filter, and auto zero settings are changed.
Section 6 Measuring 4-wire resistance with offset compensation In this section: Introduction .............................................................................. 6-1 Equipment required .................................................................. 6-1 Device connections .................................................................. 6-2 4-wire resistance measurements with offset compensation .....
Section 6: Measuring 4-wire resistance with offset compensation Model DMM7510 7½ Digit Multimeter User's Manual Device connections You can use either the front-panel or the rear-panel terminals for this application. The following figures show the physical connections for the front and rear panels. Note that you must use either the front terminals or the rear terminals — you cannot mix front and rear connections. The front-panel and rear-panel connections are both safety banana jacks.
Model DMM7510 7½ Digit Multimeter User's Manual Section 6: Measuring 4-wire resistance with offset compensation Figure 26: Front-panel connections for 4-wire resistance measurements Figure 27: Rear-panel connections for 4-wire resistance measurements 4-wire resistance measurements with offset compensation This application demonstrates how to use the Model DMM7510 to measure the resistance of a device or component.
Section 6: Measuring 4-wire resistance with offset compensation Model DMM7510 7½ Digit Multimeter User's Manual Using the front panel To set up the application from the front panel: 1. Press the POWER button on the front panel to turn on the instrument. 2. 3. 4. 5. 6. On the FUNCTIONS swipe screen, select 4W Ω to select the 4-wire resistance measure function. Press the MENU key. Under Measure, select Settings. Set Offset Compensation to On. Press the HOME key.
Model DMM7510 7½ Digit Multimeter User's Manual Section 6: Measuring 4-wire resistance with offset compensation 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.
Section 7 Sampling temperature at a set time interval In this section: Introduction .............................................................................. 7-1 Equipment required .................................................................. 7-1 Device connections .................................................................. 7-2 Sample temperatures at a specific time interval .......................
Section 7: Sampling temperature at a set time interval Model DMM7510 7½ Digit Multimeter User's Manual Device connections Use of a four-wire resistance temperature detector (RTD) reduces the effects of lead resistance on accuracy and provides high stability. You can use either the front or rear input terminals for this test. Both front-panel and rear-panel connections are safety banana jacks.
Model DMM7510 7½ Digit Multimeter User's Manual Section 7: Sampling temperature at a set time interval To prevent electric shock, test connections must be configured such that the user cannot come in contact with test leads or any device under test (DUT) that is in contact with the conductors. It is good practice to disconnect DUTs from the instrument before powering the instrument. Safe installation requires proper shields, barriers, and grounding to prevent contact with test leads.
Section 7: Sampling temperature at a set time interval Model DMM7510 7½ Digit Multimeter User's Manual Using SCPI commands This sequence of SCPI commands makes temperature readings every minute for 24 hours. You may need to make changes so that this code will run in your programming environment. In the table, the SCPI commands have a light gray background. The light-brown shaded code represents pseudocode that will vary depending on the programming environment you use.
Model DMM7510 7½ Digit Multimeter User's Manual Section 7: Sampling temperature at a set time interval Using TSP 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.
Section 7: Sampling temperature at a set time interval Model DMM7510 7½ Digit Multimeter User's Manual --Wait for TRIGGER key press from front panel to start trigger model trigger.model.setblock(1, trigger.BLOCK_WAIT, trigger.EVENT_DISPLAY) --Send notify to start the timer trigger.model.setblock(2, trigger.BLOCK_NOTIFY, trigger.EVENT_NOTIFY1) --Make a measurement and store the reading in default buffer trigger.model.setblock(3, trigger.BLOCK_MEASURE, defbuffer1) --Wait for timer delay to elapse trigger.
Model DMM7510 7½ Digit Multimeter User's Manual Section 7: Sampling temperature at a set time interval Figure 31: Model DMM7510 final temperature measurement DMM7510-900-01 Rev.
Section 8 Grading and binning resistors Refer to the "Grading and binning resistors" topic in the Model DMM7510 reference manual. In this section: Introduction............................................................................... 8-1 Instrument connections ............................................................ 8-2 Resistor grading and binning test .............................................
Section 8: Grading and binning resistors Model DMM7510 7½ Digit Multimeter User's Manual Instrument connections In this example, the output signals that represent the grading results are sent from the Model DMM7510. The signals are sent to the component handler, which bins the devices. The figure below shows the rear-panel connections from the Model DMM7510 to the test fixture and the digital lines to the component handler.
Model DMM7510 7½ Digit Multimeter User's Manual Section 8: Grading and binning resistors If a resistor passes the 20 % limit test, the resistance value is checked against Limit 2, which is the 10 % limit value. If the resistor fails this limit inspection, the resistance is outside of the 10 % tolerance band. The trigger model outputs the Limit 2 Fail Pattern, which causes the component handler to place the resistor in the Limit 2 fail bin (10 % fail bin).
Section 8: Grading and binning resistors Model DMM7510 7½ Digit Multimeter User's Manual Overview of the application For this application, you will: • • • • • • • • • 8-4 Reset the instrument. Select the four-wire resistance function. Enable offset compensation. Auto zero once.
Model DMM7510 7½ Digit Multimeter User's Manual Section 8: Grading and binning resistors Using SCPI commands This sequence of SCPI commands grades resistors into bins based on the measured accuracy. You may need to make changes so that this code will run in your programming environment.
Section 8: Grading and binning resistors Model DMM7510 7½ Digit Multimeter User's Manual 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.
Model DMM7510 7½ Digit Multimeter User's Manual Section 8: Grading and binning resistors -- an end-of-test trigger to the component handler digio.line[6].mode = digio.MODE_TRIGGER_OUT -- Output a falling edge trigger trigger.digout[6].logic = trigger.LOGIC_NEGATIVE -- Set width of output trigger pulse to 10 us trigger.digout[6].pulsewidth = 10E-6 -- Trigger pulse is output when the Notify Block generates an event trigger.digout[6].stimulus = trigger.
Section 9 Integrating with a Model 3706A-S using TSP-Link In this section: Introduction .............................................................................. 9-1 Equipment required .................................................................. 9-1 Device connections .................................................................. 9-2 Integrating with a Model 3706A-S test .....................................
Section 9: Integrating with a Model 3706A-S using TSP-Link Model DMM7510 7½ Digit Multimeter User's Manual Device connections The Model 3706A-S used in this test includes two multiplexer cards and screw terminal blocks: • Model 3721 Dual 1x20 Channel Multiplexer Card and Model 3721-ST Screw Terminal Block (slot 1) • Model 3724 Dual 1x30 FET Multiplexer Card and Model 3724-ST Screw Terminal Block (slot 4) The signal lines are connected through the Model 3721 and Model 3724 multiplexer cards in 3706AS.
Model DMM7510 7½ Digit Multimeter User's Manual Section 9: Integrating with a Model 3706A-S using TSP-Link Figure 33: Connections for the Model 3706A-S integration application To prevent electric shock, test connections must be configured such that the user cannot come in contact with test leads or any device under test (DUT) that is in contact with the conductors. It is good practice to disconnect DUTs from the instrument before powering the instrument.
Section 9: Integrating with a Model 3706A-S using TSP-Link Model DMM7510 7½ Digit Multimeter User's Manual Integrating with a Model 3706A-S test For this application, you will: • • • • • • Make sure that the TSP-Link node for the Model 3706A-S is set to 1 • • • Configure Model 3706A-S input and output TSP-Link triggers. • Initiate scanning and measurement on the Model DMM7510 and Model 3706A-S. Connect the computer to the Model DMM7510 Reset the instruments. Initialize TSP-Link.
Model DMM7510 7½ Digit Multimeter User's Manual Section 9: Integrating with a Model 3706A-S using TSP-Link Using SCPI This example cannot be replicated in SCPI code because TSP-Link-related events and commands are only available through the TSP command language. However, you can use other instrument trigger interfaces, such as digital I/O or external trigger I/O, to replace TSP-Link and achieve similar operation.
Section 9: Integrating with a Model 3706A-S using TSP-Link Model DMM7510 7½ Digit Multimeter User's Manual --[[ Create a configuration list on Model DMM7510 named "myScanConfigList" Index 1 is DCV 100 mV range, 10 channel Index 2 is DCV 10 V range, 20 channel Index 3 is ACV 1 V range, 9 channel Index 4 is Resistance 4W, 20 channel ]] node[2].dmm.measure.configlist.create("myScanConfigList") node[2].dmm.measure.func = node[2].dmm.FUNC_DC_VOLTAGE node[2].dmm.measure.range = 10 node[2].dmm.measure.
Model DMM7510 7½ Digit Multimeter User's Manual Section 9: Integrating with a Model 3706A-S using TSP-Link node[1].scan.create("") --Create a scan list muxChannels = {} muxChannels[1] = "1001:1020" --DCV 1 muxChannels[2] = "1021:1030" --DCV 2 muxChannels[3] = "1031:1040" --ACV muxChannels[4] = "4001:4020" --4W RES muxChannelsCount = {} lastcount = 0 node[1].channel.setpole("4001:4020", 4) node[1].channel.setbackplane("1001:1020", "1911") node[1].channel.setbackplane("1021:1030", "1921") node[1].channel.
Section 9: Integrating with a Model 3706A-S using TSP-Link Model DMM7510 7½ Digit Multimeter User's Manual node[2].trigger.model.setblock(16, node[2].trigger.BLOCK_CONFIG_NEXT, "myScanConfigList") node[2].trigger.model.setblock(17, node[2].trigger.BLOCK_WAIT, node[2].trigger.EVENT_TSPLINK1) node[2].trigger.model.setblock(18, node[2].trigger.BLOCK_MEASURE) node[2].trigger.model.setblock(19, node[2].trigger.BLOCK_NOTIFY, node[2].trigger.EVENT_NOTIFY1) node[2].trigger.model.setblock(20, node[2].trigger.
Section 10 Capturing and analyzing waveforms In this section: Introduction ............................................................................ 10-1 Equipment required ................................................................ 10-1 Device connections ................................................................ 10-2 Testing a buck converter ........................................................
Section 10: Capturing and analyzing waveforms Model DMM7510 7½ Digit Multimeter User's Manual Device connections This application example consists of four tests with different connections. An overview of the connections is shown in the figure below. You can use either the front or rear panel connections for these tests. Check the front panel TERMINALS switch to verify that the instrument is set to read the correct set of terminals (F is lit for front terminals; R is lit for rear terminals).
Model DMM7510 7½ Digit Multimeter User's Manual Section 10: Capturing and analyzing waveforms To prevent electric shock, test connections must be configured such that the user cannot come in contact with test leads or any device under test (DUT) that is in contact with the conductors. It is good practice to disconnect DUTs from the instrument before powering the instrument. Safe installation requires proper shields, barriers, and grounding to prevent contact with test leads.
Section 10: Capturing and analyzing waveforms Model DMM7510 7½ Digit Multimeter User's Manual Ripple noise on the output voltage This test measures the ripple voltage captured on the output terminal of the buck converter evaluation board.
Model DMM7510 7½ Digit Multimeter User's Manual Section 10: Capturing and analyzing waveforms Run the test using the front panel To run the test using the front panel: 1. 2. 3. 4. 5. 6. 7. 8. Press the POWER button on the front panel to turn on the instrument. On the FUNCTIONS swipe screen, select Digi V to select the Digitize Voltage measure function. Swipe to display the SETTINGS swipe screen. Set the Sample Rate to 1,000,000. Set the Count to 100. Swipe to display the GRAPH swipe screen.
Section 10: Capturing and analyzing waveforms Model DMM7510 7½ Digit Multimeter User's Manual Using SCPI commands You may need to make changes so that this code will run in your programming environment.
Model DMM7510 7½ Digit Multimeter User's Manual Section 10: Capturing and analyzing waveforms Send the following commands: --Reset the instrument to default settings. reset() --Create a local variable to store the number of samples numofsamples = 100 --Set the measure function to digitize voltage to capture the ripple waveform dmm.digitize.func = dmm.FUNC_DIGITIZE_VOLTAGE --Voltage range must be fixed when using digitize voltage dmm.digitize.
Section 10: Capturing and analyzing waveforms Model DMM7510 7½ Digit Multimeter User's Manual For this test, you will: • • • • • • Connect the 3 Ω load resistor to the output terminals of the buck converter • • View the data on the Graph screen Connect one test lead to the switch node voltage of the buck converter Connect another test lead to the ground of the buck converter Supply 12 V of input voltage to the input terminals of the buck converter Reset the instrument Select the digitize voltage func
Model DMM7510 7½ Digit Multimeter User's Manual Section 10: Capturing and analyzing waveforms Run the test using the front panel Running the duty-cycle test from the front panel: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Press the POWER button on the front panel to turn on the instrument. On the FUNCTIONS swipe screen, select Digi V to select the digitize voltage function. Swipe to display the SETTINGS swipe screen. Set the Sample Rate to 1,000,000. Set the Count to 100. Swipe to the GRAPH swipe screen.
Section 10: Capturing and analyzing waveforms Model DMM7510 7½ Digit Multimeter User's Manual Figure 39: Duty cycle 3 • • • • ∆high = 8.029 µs ∆period = 19.16 µs Duty cycle = 8.029 µs /19.16 µs = 40 % Expected output = duty cycle x input = 40 % x 12 V = 5 V The red dots in the figures indicate an overflow condition, which occurs because the 12 V measurement is over the 10 V measurement range.
Model DMM7510 7½ Digit Multimeter User's Manual Section 10: Capturing and analyzing waveforms Inductor current linearity with varying load The inductor current is expected to be a linear triangular waveform with varying amplitude, depending on the loading at the output terminals. The current increases linearly when energy is stored into the inductor and decreases when energy discharges from the inductor.
Section 10: Capturing and analyzing waveforms Model DMM7510 7½ Digit Multimeter User's Manual Run the test using the front panel Running the inductor current linearity test from the front panel: 1. 2. 3. 4. 5. 6. 7. Press the POWER button on the front panel to turn on the instrument. On the FUNCTIONS swipe screen, select Digi I to select the digitize current function. Swipe to the SETTINGS swipe screen. Set the Sample Rate to 500,000. Set the Count to 50. Press the MENU key.
Model DMM7510 7½ Digit Multimeter User's Manual Section 10: Capturing and analyzing waveforms Figure 43: Inductor current linearity results at 8 ohms Using SCPI commands You may need to make changes so that this code will run in your programming environment.
Section 10: Capturing and analyzing waveforms Model DMM7510 7½ Digit Multimeter User's Manual 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.
Model DMM7510 7½ Digit Multimeter User's Manual Section 10: Capturing and analyzing waveforms Power-up behavior You can use the Model DMM7510 to capture the start-up behavior of the buck converter. The start-up inspection can ensure that the device turns on in a reasonable amount of time without any unexpected glitches or pulses. You can capture the asynchronous power-up event by using the analog trigger feature on the Model DMM7510.
Section 10: Capturing and analyzing waveforms Model DMM7510 7½ Digit Multimeter User's Manual Device connections Connect the test leads as shown in the following figure. You can use either the front or rear inputs. Ensure that the front-panel TERMINALS button is set correctly (F displayed for front; R displayed for rear). Note that you must use either the front terminals or rear terminals — you cannot mix connections. Both front-panel and rear-panel connections are safety banana jacks.
Model DMM7510 7½ Digit Multimeter User's Manual Section 10: Capturing and analyzing waveforms Run the test using the front panel Set up the digitize function: 1. 2. 3. 4. 5. 6. 7. 8. Press the POWER button on the front panel to turn on the instrument. On the FUNCTIONS swipe screen, select Digi V to select the digitize voltage function. Swipe to display the SETTINGS swipe screen. Set the Sample Rate to 1,000,000. Set the Count to 1. Press the MENU key. Select Reading Buffers. Set the Capacity to 10,000.
Section 10: Capturing and analyzing waveforms Model DMM7510 7½ Digit Multimeter User's Manual Using SCPI commands You may need to make changes so that this code will run in your programming environment.
Model DMM7510 7½ Digit Multimeter User's Manual Section 10: Capturing and analyzing waveforms Send the following commands: --Reset the instrument to default settings reset() --Create a local variable to store the number of samples numofsamples = 10000 --Set the measure function to digitize voltage to capture the power-up behavior dmm.digitize.func = dmm.FUNC_DIGITIZE_VOLTAGE --Voltage range must be fixed when using digitize voltage dmm.digitize.
Section 11 Troubleshooting FAQs In this section: About this section ................................................................... 11-1 Where can I find updated drivers? .......................................... 11-1 Is there any software to help me get started?......................... 11-2 How do I upgrade the firmware? ............................................ 11-2 Why can't the Model DMM7510 read my USB flash drive? .... 11-2 How do I change the command set? ...................................
Section 11: Troubleshooting FAQs Model DMM7510 7½ Digit Multimeter User's Manual Is there any software to help me get started? Yes. Keithley Instruments provides Keithley Instruments KickStart and Keithley Instruments TestScript Builder to help you get started with the Model DMM7510. Keithley Instruments KickStart is a software program that allows you to set up your instrument and run a test without using any programming languages.
Model DMM7510 7½ Digit Multimeter User's Manual Section 11: Troubleshooting FAQs How do I change the command set? You can change the command set that you use with the Model DMM7510. The remote command sets that are available include: • • SCPI: An instrument-specific language built on the SCPI standard. TSP: A scripting programming language that contains instrument-specific control commands that can be executed from a stand-alone instrument.
Section 11: Troubleshooting FAQs Model DMM7510 7½ Digit Multimeter 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. After they are saved, you can recall the script or copy it to a USB flash drive. From the front panel: 1. 2. 3. 4. 5. 6. Configure the Model DMM7510 to the settings that you want to save. Press the MENU key. Under Scripts, select Create Setup.
Model DMM7510 7½ Digit Multimeter User's Manual Section 11: 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 measure function. The options are the same as those available when you use the front-panel FUNCTION key. The Performance slider allows you to adjust speed and resolution.
Section 12 Next steps In this section: Additional Model DMM7510 information ................................. 12-1 Additional Model DMM7510 information This manual has prepared you to start using your new Model DMM7510 7½ Digit Multimeter for your application. For more detailed information, refer to the Keithley Instruments Model DMM7510 Reference Manual. For related documentation, software tools, and drivers, see the Model DMM7510 7½ Digit Multimeter Product Information CD-ROM.
Index C command command set • 3-14 contact information • 1-2 D display touchscreen • 2-5 E extended warranty • 1-2 F FAQs • 11-1 front panel interface • 2-1 using • 2-1 M MENU key • 2-13 P power on • 2-4 R remote command interface • 3-1 S SCPI • 3-14 T troubleshooting • 11-1 FAQs • 11-1 TSP • 3-14 W warranty • 1-2
Specifications are subject to change without notice. All Keithley trademarks and trade names are the property of Keithley Instruments. All other trademarks and trade names are the property of their respective companies. Keithley Instruments Corporate Headquarters • 28775 Aurora Road • Cleveland, Ohio 44139 • 440-248-0400 • Fax: 440-248-6168 • 1-800-935-5595 • www.keithley.
