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1.7.4 Operating Precautions
Background
The STW-9000 is a high voltage instrument that outputs
dangerous voltages. The following section describes
precautions and procedures that must be followed to
ensure that the tester is operated in a safe manner.
WARNING
The STW-9000 generates voltages of up to 5kVAC or
6kVDC. Follow all safety precautions, warnings and
directions given in the following section when using the
instrument.
1.
Never touch the safety tester, lead wires, terminals,
probes and other connected equipment when the tester is
testing.
2.
Do not turn the safety tester on and off quickly or
repeatedly. When turning the power off, please allow a few
moments before turning the power back on. This will allow
the protection circuits to properly initialize.
Do not turn the power off when a test is running, unless in
an emergency.
3.
Only use those test leads supplied with the instrument.
Leads with inappropriate gauges can be dangerous to
both the operator and the instrument.
For GB testing, never use the Sense leads on the
SOURCE terminals.
4.
Do not short the HIGH VOLTAGE terminal with ground.
Doing so could charge the chassis to dangerously high
voltages.
5.
Ensure the earth ground of the line voltage is properly
grounded.
6.
Only connect the test leads to the HIGH
VOLTAGE/SOURCE H/SENSE H terminals before the
start of a test. Keep the test leads disconnected at all
other times.
7.
Always press the STOP button when pausing testing.
8.
Do not leave the safety tester unattended. Always turn the
power off when leaving the testing area.
9.
When remotely controlling the safety tester, ensure
adequate safety measures are in place to prevent:
Inadvertent output of the test voltage.
Accidental contact with the instrument during testing.
Ensure that the instrument and DUT are fully isolated when
the instrument is remotely controlled.