5
4. Cautions for Operation
4.1 Cautions for Operation
* This pump is not designed to be explosion-proof, and should therefore not be used to
discharge explosive gases.
*In addition to discharge of gas via the outlet, gas may also leak from other parts of the
pump, and it should therefore not be used with toxic gases. If toxic gas is discharged
for any reason it is important to note that the interior of the pump will be
contaminated by the gas, requiring appropriate caution during maintenance.
* Operating the pump with the discharge outlet blocked, or with a device which
prevents passage of gas to the discharge outlet, may result in rupture of the pump.
The internal pressure of the pump rises and the pump body may rupture and the
motor become overloaded.
This pump is not designed to be pressure-resistant. The internal pressure of the
pump is limited to 30 kPa (gauge pressure).
* Use the pump only at the rated voltage. Use at other than the rated voltage will
interfere with operation of the overload protection device, and this may result in the
motor burning out, or fire.
* This pump is not designed to be explosion-proof. Ensure that the vicinity of the motor
and pump is completely free of inflammable materials (e.g. inflammable solvents).
Use in the presence of such materials may result in fire.
* During operation, or immediately after it has stopped, the pump will be extremely hot.
Touching the pump in this condition may result in burns.
* Ensure that the pump is used at an ambient temperature of 7
°C
~40
°C
. Operation
of the pump at high ambient temperatures will dramatically reduce its operating life.
* The pump is not designed to be corrosion-proof. Use only with clean air at normal
temperature, or gases of equivalent characteristics.
* The pump will not operate normally if damaged. Do not use with corrosive gases,
organic solvents, liquids, or condensable gases (eg. steam).
* Use of the pump with gases containing particles, dust, water, or corrosive gases will
interfere with normal operation.
* Application of loads at the inlet and outlet when starting the pump may overload the
motor and prevent starting.
* This pump is designed solely for vacuum discharge. Operation for long periods at
near-atmospheric pressure may result in a malfunction.
Consult the manufacturer for details of use in special applications other than the above.
!
Danger
!
Warning
!
Caution
!
Note
