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Cautions for Safety in Use
Applications
(1) This pump is not designed to be explosion-proof, and should therefore not be used to
evacuate explosive gases.
(2) In addition to discharge of gas via the pump outlet, gas may leak from the pump itself.
Use it only with dry air and N
2
at normal temperature, or gases of equivalent
characteristics.
Maintenance and Repair
(3) When sending the pump to the manufacturer
’s service division for dismantling and repair,
always note the type of gas that has been used on the 'Pump Usage Check Sheet'.
Installation
(1) Do not use the pump in an explosive atmosphere. Such use may result in injury and fire.
(2) Ensure that there are no inflammable materials such as solvents in the vicinity when
using the pump. Such use may result in fire.
(3) Ensure that the motor is freely ventilated to prevent overheating which may result in fire
or burns. The pump is polluted with a poisonous gas when exhaust a poisonous gas with
this pump. Depending on a kind of the gas may decline an overhaul. Please pay attention
enough.
(4) To reduce the risk of fire and explosion-damage, enclose the pump by non-flammable
cover.
Power Supply
(5) Always switch off the main power supply, and make sure that the pump has stopped,
before carrying out inspection and repair.
(6) Ensure that the relevant wiring is in accordance with technical standards for electrical
equipment and wiring regulations. Incorrect wiring may result in fire.
(7) Always switch off the main power supply before installing electrical wiring. Carrying out
work on the pump while the power is connected may result in electric shock.
(8) Always ensure that the pump is correctly earthed. A dedicated earth leakage breaker is
recommended. Failure to earth the pump correctly may result in electric shock if a
malfunction or earth leakage occurs.
(9) Use the pump only at the rated voltage. Use at other than the rated voltage will interfere
with operation of the overload protection relay, and this may result in the motor burning
out, or fire.
(10) Do not damage/ modify/pull the power cord. Do not place objects on it. Damage to the
cord may result in electric shock or fire.
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Danger
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Warning
