Service Manuals, User Guides, Schematic Diagrams or docs for : Keithley 71xx 7169_901_01A
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Model 7169 General Purpose Scanner Card
Instruction Manual
Contains Operating and Servicing Information
WARRANTY
LIMITATION OF WARRANTY
STATEMENT OF CALIBRATION
Model 7169
General Purpose Scanner Card
Instruction Manual
01989, Keithley Instruments, Inc.
All rights reserved.
Cteveland, Ohio, U.S.A.
First Printing, July 1989
Document Number: 716Y-901.01 Rev. A
All Keithley product names are trademarks or registered trade,
marks of Keithley Instruments, Inc.
Other brand and product names are trademarks or registered
trademarks of their respective holders.
SAFETY PRECAUTIONS
The following safety precautions should be observed before using the
Model 7169 and the associated instruments.
This 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.
Exercise extreme caution when a shock hazard is present at the test cir-
cuit. User-supplied lethal voltages may be present 011the PC board. The
American National Standards Institute (ANSI) states that a shock haz-
ard exists when voltage levels greater than 30V RMS or 42.4V peak are
present. A good safety practice is to expect that hazardous voltage is
present in any unknown circuit before measuring.
Do not exceed500V peak between any two pins or between any pin and
earth 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 cables or any instruments
while power is applied to the circuit under test. Turn off the power and
discharge any capacitors before connecting or disconnecting cables
from the card.
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. Always
make measurements with dry hands while standing on a dry, insulated
surface capable of withstanding the voltage being measured.
Do not exceed the maximum signal levels of the card, as defined in the
specifications and operation section of this manual.
Model 7169 20 Form C Switch Card
CHANNELS PER CARD: 2.0 independent Form C. All poles available
at connectors. Replacement of factory installed jumper allows
current limit resistor in series with common of each channel. On-
card bus allows for addition of jumper to change configuration from
switch to multiplex. Bus also allows channel interconnection.
CONNECTOR TYPE: 3 x 20 pin mass termination.
RELAY DRIVE CURRENT: 3OmA per relay typical.
MAXIMUM SIGNAL LEVEL: 500V peak, 0.5A rms switched, 1A rms
carry, 1OW (resistive load only).
CONTACT LIFE: >108 closures cold switching; >107 closures at
maximum signal levels.
CONTACT RESISTANCE: <2Q to rated life.
CONTACT POTENTIAL: <3OkV, C to NO or NC.
ACTUATION TIME: 109Q, <150pF.
INPUT ISOLATION: >lOgQ <150pF.
COMMON MODE VOLTAGE: 500V peak.
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