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SAFETY PRECAUTIONS
The following
safety precautions
should be observed before using the Model 7072 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 matrix card.
Exercise extreme caution when a shock hazard is present at the test circuit. User-supplied
lethal voltages
may be present on the card connector jacks. 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 voltage is present in any unknown
circuit before measuring.
Do not exceed 200V 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 matrix card.
Do not touch any object which could provide a current path to the common 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
allowable input of the matrix card, as defined in the specifications
and
operation
section of this manual.
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