04
Precautions about safety in operation
<Application>
(1) This pump is not designed for explosion-proof construction. Do not use for exhaust of explosive
gas.
(2) Suction gas may leak out of the pump main unit from other area than exhaust vent. Do not use
for exhaust of toxic gas. When toxic gas is exhausted by any chance, internal pump may be
polluted by the toxic gas.
Please pay attention during maintenance work.
<Maintenance / repair>
(3) When requesting ULVAC overhaul, fill the type of suction gas in "Usage Status Check Sheet"
provided at the end of this Instruction Manual. In case the pump is used for exhaust of toxic gas
by any chance, internal pump unit is polluted by the toxic gas. Overhaul of some contaminated
pump cannot be made according to the type of toxic gas. Please pay enough attention.
<Installation>
(1) Do not use in explosive atmosphere. There is a risk of injury or fire.
(2) Do not place inflammables such as flammable solvent in periphery of the pump definitely. There
is a risk of fire.
(3) Do not place obstacles that likely to disturb the ventilation in periphery of the pump. There is a risk
of fire by abnormal heat generation.
<Power source>
(4) Never fail to disconnect the power cord when start inspection / repair definitely.
There is risk of electric shock or injury attributed to sudden start of the pump.
(5) Conduct wiring work correctly by observing Electric System Design Standard and the in-house
rules.
Incorrect wiring work causes a fire.
(6) Never fail to disconnect the power cord when start electric wiring work.
Do not conduct wiring work while electric current is supplied definitely. Otherwise, gets an electric
shock.
(7) Perform secure grounding of the pump definitely. It is recommended to install the dedicated
circuit breaker.
Use of the pump without connecting earth may result in electric shock when the motor is failed or
short circuit.
(8) Do not use the motor by other power voltage than rated voltage. Overload protection device may
not operate normally, and cause burning of the motor or a fire.
(9) Do not tear, process or pull the power cord. Never put substance on the power cord.
Short circuit may occur from the damaged portion causing electric shock or a fire.
(10) When inserting power cord to a wall socket, always insert the plug to the depths of wall socket.
There is a risk of electric shock.
(11) When pulling the power cord out, grab the plug definitely. There is a risk of electric shock.
(12) Do not insert or pull the power cord with wet hands. There is a risk of electric shock.
(13) When the power cord is inserted in wall socket, do not touch electric wiring portion. Otherwise,
gets an electric shock.
DANGER
WARNING
