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STP-H803/H1303 Series Instruction Manual
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NEVER use any gas that is not specified as usable in this Manual.
The use of such gas may corrode the STP pump and damage it.
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A hazardous live voltage may exist at connector/terminal that marked
.
DO NOT touch the terminal. Doing so may result in electric shock.
When operating connection/disconnection to connector, always
power OFF the STP pump (Switch the breaker "OFF").
◇
Always check the STP pump has stopped, then turn OFF the primary
power (switch the breaker "OFF") before proceeding to any of the
following operations. Failure to do so may cause the STP pump to
rotate accidentally, which may injure operators seriously or result in
electric shock. Moreover, do not remove the connecter while the
pump is rotating. The voltage might be output to connector
according to the rotational speed, and it causes the electric shock or
the failure.
•
Connect or disconnect cables;
•
Perform maintenance such as replacement of fuses;
•
Perform inspections such as deposit and/or the air cooling fan; or
•
Perform investigations into probable causes and action/measures
taken in the event of occurrence of a problem.
◇
Do not perform the insulation test (insulation resistance test and
withstand voltage test) to the STP control unit and STP pump.
When performing the insulation test to your equipment, turn "OFF"
the STP control unit. The varistor for the power supply line
protection is installed to the STP control unit. DO NOT perform the
insulation test with the varistor installed. Doing so may result in
product damage.
◇
When "emergency off" (EMO) circuit is installed in the vacuum
equipment, consider the following to stop the STP pump safely when
the EMO circuit operates.
•
When the EMO circuit operates, atmosphere might be introduced
in the STP pump depending upon the backing pump. Unite the
exhaust gas system to prevent atmosphere from being introduced
into the STP pump when the EMO circuit operates. (example: shut
the valve) When atmosphere is introduced into the STP pump,
the touch down bearing may not operate normally.
3