Keithley 7153 901 01A free download

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Model 7153 High Voltage Low Current Matrix Card Instruction Manual Contains Operating and Servicing Information Model 7153 High Voltage Low Instruction Manual 0 1990, Keithley Instruments, Inc. Test Instrumentation Croup All rights reserved. Cleveland, Ohio, U.S.A. November 1990, First Printing Document Number: 7153.YOLRev. A SAFETY PRECAUTIONS The following safety precautions should be observed before using the Model 7153 and the associated instruments. This matrix card is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury. Read over this manual carefully before using the card. ALWAYS remove power from the entire system (mainframe, test instru- ments, DUT, etc.) and discharge any capacitors before doing any of the following: 1. Installing or removing the matrix card from the mainframe. 2. Connecting or disconnecting cables from the matrix card. Exercise extreme caution when a shock hazard is present at the test fixture. User-supplied lethal voltages may be present on the fixture or the connec- tor jack. The American National Standards Institute (ANSI) states that a shock hazard exists when voltage levels greater than 30V RMS or 42.4V peak are present. A good safety practice is to expect that hazardous volt- age is present in any unknown circuit before measuring. Do not exceed 1300V between any two pins or between any pin and chas- sis ground. Inspect the connecting cables and test leads for possible wear, cracks, or breaks before each use. For maximum safety, do not touch the test fixture, test cables or any instru- ments while power is applied to the circuit under test. Do not touch any object which could provide a current path to the com- mon side of the circuit under test or power line (earth) ground. Do not exceed the maximum signal levels of the test fixture, as defined in the specifications and operation section of this manual. Do not connect the matrix card (or any other instrumentation) to humans. Do not connect the matrix card directly to unlimited power circuits. This product is intended to be used with impedance limited sources. NEVER connect the tmatrix card directly to AC mains. When connecting sources, install protective devices to limit fault current and voltage to the card. The chassis connections must only be used as shield connections for measuring circuits; NOT as safety earth ground connections. The outer shields (including the triax connector shells) of the Model 7153-TRX are not connected to safety earth ground. NEVER apply more than 30V to these shields. To prevent voltages from bein