page 23 of 118
Check the liquid level in the catchpots regularly and drain
condensate in time to prevent overfilling. Install a level
sensor (see ”Accessories”, pg. 89) for monitoring, if
necessary.
Provide appropriate protective measures to allow for the
possibility of failure and
malfunction
. The protective mea-
sures must also allow for the requirements of the respec-
tive application.
The CVC 3000 controller is powered by a short circuit
proof wide-range power supply with integrated overload
protection.
In case of overload, the motor is shut down by a
self-hold
thermal cutout
in the winding.
Note
: Only manual reset is possible. Switch off the pump
and disconnect from the power source. Identify and elimi-
nate the cause of failure. Wait approx. five minutes before
restarting the pump.
•
Note
: In case of
supply voltage below 100V
, the lock
of the cutout might be impaired and the pump may
restart on its own after sufficient cooling down. Take
appropriate precautions, if an automatic restart of the
pump may lead to a dangerous situation (e.g., switch
off the pump and disconnect from the power source).
Maintenance and repair
In order to comply with laws (occupational, health and
safety regulations, safety at work law and regulations for
environmental protection) vacuum pumps, components
and measuring instruments can only be returned when
certain procedures (see section “Repair - Maintenance -
Return - Calibration”, pg. 110) are followed.
Take advantage of our service seminars, which put special
focus on the maintenance and repair of vacuum pumps.
For details and for the online ”Instructions for repair” man-
NOTICE
