Decompression
container
Vacuum controller
When the unit is installed at a position
higher than the decompression
container or the vacuum pump.
Decompression
container
Vacuum controller
When the unit is installed at a position
lower than the decompression
container or the vacuum pump.
Waste liquid
Trap
-13-
Vacuum pump,
Pump control box
Vacuum pump,
Pump control box
4-2 Installation conditions
Be sure to install the vacuum controller
at a place higher than the
decompression container and the
vacuum pump.
The product may malfunction if the solvent is
liquefied in the pipe.
If you cannot install the unit at a higher position,
install a waste liquid trap between the
decompression container and the control solenoid
valve.
Caution
Pay attention to the following when installing the vacuum
controller .
Observe the instructions for
Connecting pipes.
Caution
Incorrect connection of pipes will prevent the unit
from operating correctly as well as may cause a
malfunction or an accident.
●
Prepare appropriate hose and couplers.
Select hoses and couples for connecting to the
decompression container and the vacuum pump
appropriate for the nozzle diameter of the device and the
type of solvent used.
●
Install the vacuum controller at a higher position.
Select a position higher than the decompression
container, the vacuum pump, hoses and couplers.
●
If you cannot install the unit at a higher position, install a
waste liquid trap.
If you cannot install the vacuum controller at a position
higher than the decompression container or the vacuum
pump, install an optional waste liquid trap between the
decompression container and the control solenoid valve.
Install the waste liquid trap at a position to make the pipe
for the control solenoid valve minimum.
●
Make the piping distance between the unit and the
decompression container or the vacuum pump as short as
possible.
●
Take extreme care not to tightly close the leak nozzle or
allow foreign objects from entering.
●
When atmospheric air to be suctioned at the release of
decompression must be clean, install a filter to the leak
nozzle.
●
When you do not want to atmospheric air to be suctioned
at the release of decompression, purge N2 gas or other
inactive gas.
※
Set the purging pressure to 1029hPa or lower.
Applying a pressure higher than this may prevent a
correct operation or cause a malfunction.
An alarm is displayed and stops at a pressure of
1030hPa or higher.
