4
3.2 Environmental Conditions for Installation, Storage, and Operation
The fine clearances used in this pump require that the following conditions be satisfied during
storage, installation, and operation.
1. Ambient temperature of 7°C ~40°C and maximum relative humidity of 85% during
operation.
2. Other conditions (during storage and operation).
a) Level floor of sufficient strength.
b) No condensation
c) Dust-free environment
d) Well ventilated
e) Environment free of corrosive or explosive gas.
f) Not subject to direct sunlight.
g) No danger of fire.
h) Maximum ambient temperature of 40°C during assembly of pump.
3.3 Location
The pump should be installed level in a location with minimal dust and humidity. This location
should be selected in consideration of ease of installation and removal, inspection, and
cleaning.
Particular attention should be paid to ambient temperature when fitting the pump to equipment.
Use anti-vibration rubbers to isolate the pump from vibrations in the equipment. See 3.2
Environmental Conditions for Installation, Storage, and Operation for details.
3.4 Wiring
1) Remove the caps from the inlet and outlet pipes before using the pump
2) The wiring is already connected to the pump. Check that the pump switch is set to 'O', and
connect the power supply.
3) Set the pump switch to 'I' and check for vacuum.
4) Set the pump switch to 'O' to stop the pump.
5) Attachment of the motor breaker is recommended.
3.5 Piping
1) Install piping carefully to prevent leaks.
2) Use only a very short hose on the inlet. Use of a long hose will reduce exhaust
performance. Ensure that the hose has an internal diameter of at least 10mm.
3) Ensure that piping connected to the outlet does not cause back pressure. Maximum back
pressure is 30 kPa (gauge pressure).
4) In case of selecting the inlet pipe and exhaust pipe that are not from our products,
please
select the exhaust pipe that has same or larger inner diameter length with the inlet pipe.
5) When evacuating a vessel, ensure that a shut-off valve is placed between the pump inlet
pipe and the vessel (see Fig.3.1).
Fig.3-1 Piping Example with Vessel and Vacuum Exhaust
3.6 Storage
Set the pump switch to 'O', remove the power cord from the outlet, place the caps over the
inlet and outlet, and store the pump in an area of low humidity.
Vacuum pump
Filter
Leak valve
Shut-off valve
Vessel
