Model 2651A High Power System SourceMeter® Instrument Quick Start Guide
Safety precautions Observe the following safety precautions 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.
Do not connect switching cards directly to unlimited power circuits. They are intended to be used with impedance-limited sources. NEVER connect switching cards directly to AC mains. When connecting sources to switching cards, install protective devices to limit fault current and voltage to the card. Before operating an instrument, ensure that the line cord is connected to a properly-grounded power receptacle.
To maintain protection from electric shock and fire, replacement components in mains circuits - including the power transformer, test leads, and input jacks - must be purchased from Keithley Instruments. Standard fuses with applicable national safety approvals may be used if the rating and type are the same.
Introduction to the Model 2651A High Power System SourceMeter® Instrument The Model 2651A System SourceMeter® Instrument is a high-power source-measure unit (SMU) that simplifies test processes by combining source and measure capabilities in a single instrument. A Model 2651A is a scalable, high-throughput, cost-effective solution for precision DC, pulse, and low-frequency AC source-measure testing.
Unpack and inspect the instrument To unpack and inspect the instrument: 1. Inspect the box for damage. Optional rack-mount hardware 2. Open the top of the box. 3. Remove the bag that contains the documentation, accessories, and CD-ROMs. 4. Remove the packaging insert.
5. Carefully lift the instrument out of the box. 6. Inspect the instrument for any obvious signs of physical damage. Report any damage to the shipping agent immediately.
In addition to the Model 2651A High Power System SourceMeter® Instrument, you should have received: Model 2651A Quick Start Guide Model 2651A Product Information and Test Script Builder CD-ROMs 3 Power line cord 4 RJ45 LAN crossover cable 5 Interlock DB-25 male connector kit hardware 6 Female terminal block extender for use with the Model 2651A-KIT-1 7 Male direct plug-in connector for low-impedance/high-current output 8 Female terminal block extender for use with 8-pin signal control cable 9 Model 2651A-KI
Connect the instrument Important test system safety information This product is sold as a stand-alone instrument that may become part of a system that could contain hazardous voltages and energy sources. It is the responsibility of the test system designer, integrator, installer, maintenance personnel, and service personnel to make sure the system is safe during use and is operating properly.
Use high-reliability fail-safe interlock switches to disconnect power sources when a test fixture cover is opened. Where possible, use automatic handlers so operators are not required to access the DUT or other potentially hazardous areas. Provide training to all users of the system so they understand all potential hazards and know how to protect themselves from injury. In many systems, during power up, the outputs may be in an unknown state until they are properly initialized.
Turn on the instrument Operating the instrument on an incorrect line voltage may cause damage to the instrument, possibly voiding the warranty. Turn on the instrument by pressing the front panel POWER switch to the on (|) position. To connect line power: 1. Make sure the front panel power switch is in the off (0) position. 2. Connect the socket of the supplied power cord to the power connection on the rear panel. Connect power line cord 3. Connect the plug of the power cord to a grounded AC outlet.
Power-up sequence When the instrument is turned on, you should see: Three dots All segments of the display light A brief display showing “KEITHLEY Model 2651A” Line frequency detection and other startup checks The entire power-up process takes approximately 30 seconds to complete. When initialization is complete, you will see the default display screen, as shown below. ---.---mV AUTO SrcA:+000.000mV LimA:100.
Test the instrument 2. While that character is still blinking, press the up or down keys until 20 V is displayed. RANGE The following test verifies basic operation of the Model 2651A. In this test, you will use the front-panel controls shown below to source a voltage and measure the voltage output. You do not need to connect a device-under-test (DUT) for this test. AUTO ---.--- V SrcA: 20 V LimA:100.000mA The main display screen reappears: --.---- V AUTO SrcA:+00.0000 V LimA:100.
5. Turn the navigation wheel to set the source value to 20.0000 V, and then press the navigation wheel to enter the selection and exit EDIT mode. Source value set to 20.0000 V --.---- V SrcA:+20.0000 V AUTO LimA:10.0000mA AUTO --.---- V SrcA:+20.0000 V Compliance limit set to 10.0000mA LimA:100.000mA Step 2: Set the compliance limit 1. Press the LIMIT key. You will see a blinking character in the LimA value field. 2.
2. Press the AUTO key as many times as needed to select the AUTO range function. When AUTO is selected, the Model 2651A automatically selects the best range for the measured value. You will briefly see the display shown below, and then the main display screen reappears. AUTO Step 5: Observe measurements Observe the measured voltage on the main area of front panel display. The readings should be very close to the 20 V source value.
FAQs Next steps What should I do if I see an error message when I turn the instrument on? Model 2651A User’s Manual Refer to the Model 2651A User’s Manual. It contains application-based examples that will help familiarize you with the instrument. This manual is on the Product Information CD-ROM that came with your instrument. Model 2651A Reference Manual Refer to the Model 2651A Reference Manual for detailed information about all features of the instrument.
KEITHLEY INSTRUMENTS, INC. A Specifications are subject to change without notice. All Keithley trademarks and trade names are the property of Keithley Instruments, Inc. All other trademarks and trade names are the property of their respective companies. G R E A T E R 28775 AURORA RD. M E A S U R E CLEVELAND, OH 44139-1891 O F C O N F I D E N C E 440-248-0400 Fax: 440-248-6168 1-888-KEITHLEY www.keithley.
