Symptom
Causes
Countermeasures
Decompression does not
occur even if operation has
started.
Wrong settings have been input.
Check the input settings.
The power of the vacuum pump is
turned OFF.
Turn the power of the vacuum pump ON.
The pipes have come off or are
leaking.
Check for a leak at the connected pipes by
checking along them.
The inverter pump communication
cable is not connected.
Connect the cable by referring to
"Connecting the communication cable
(Optional)" on P.15.
The control solenoid valve is not
connected to the control solenoid
valve connector.
Connect the control solenoid valve to the
diaphragm pump control box PBX by
referring to P.14 “When the diaphragm
type vacuum pump is used”.
There is an abnormality in the
decompression container or the
vacuum pump.
Check the connected device referring to its
instruction manual.
A malfunction occurred to the
vacuum pump.
Stop operation immediately and contact
your dealer or our service center.
There is an error in the solenoid valve
or in the pressure sensor.
※
1.
Stop operation immediately and contact
your dealer or our service center.
Vacuum control is
unfeasible.
The control solenoid valve is clogged.
Check for foreign objects that may have
entered the nozzles of the control solenoid
valves CV-11 and CV-12.
The discharge side vacuum
hose of the vacuum pump
soon comes off.
The discharge side vacuum hose is
kinked.
Rerun the vacuum hose so that it will not
be kinked.
Solvent has frozen in the condenser
and clogged the route.
Raise the set temperature for the cooling
circulator.
Water content is being suctioned.
Supply dry air using silica gel through the
leak nozzle.
Connect a as-liquid separator (Woulfe's
bottle) between the diaphragm vacuum
pump and the vacuum unit.
-47-
※
1. The unit may not support some types of solvents.
The solenoid valve and the pressure sensor will deteriorate and may disable the control
function depending on solvents.
Solenoid valves and pressure sensors are consumable devices. Replacement of the pressure
sensor requires adjustment and your dealer or the nearest service center for repair.
