Shutdown - vacuubrand ME 16 Instructions For Use Manual

NOTICE
NOTICE
Documents are only to be used and distributed completely and unchanged. It is strictly the users' responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 997832 / 03/02/2009
• Due to the high compression ratio of the pumps, the pressure at the outlet port
might get higher than the maximally permitted pressure compatible with the me-
chanical stability of the system. Ensure that the pump outlet is not blocked or
restricted.
If the pump is installed in altitudes of more than 1000 m above mean sea level check
compatibility with applicable safety requirements, especially IEC 60034 (motor might
overheat due to insufficient cooling).
Do not start the pump if the pressure difference between inlet and outlet ports
exceeds max. 1.1 bar. Attempts to start the pump at higher difference may cause
blockade and damage of the motor.
Check compatibility with maximally permitted pressure at outlet and maximum
pressure difference between inlet and outlet ports.
Operating the pump at high inlet pressure or pumping dusty gases for a long time
may cause clogging of the silencer. Use the silencer only in case of low gas through-
put. Check the silencer regularly for permeability and replace or install a hose nozzle
instead.
Prevent internal condensation, transfer of liquids or dust. The diaphragm and valves
will be damaged, if liquids are pumped in significant amounts.
Check the pump regularly for external soiling and deposits, clean if necessary to
avoid an increase of the pump's operating temperature.
In case of excess temperature, the motor is shut down by a thermal cutout in the
winding.
Three-phase motors are equipped with a circuit-breaker which isolates all poles
in the event of an overload.
Attention: Reset possible only manually. Switch off the pump or isolate the equipment
from mains. Identify and eliminate the cause of failure. Allow the pump to cool down
sufficiently before restart. Wait approx. five minutes before restarting the pump.
Avoid high heat supply (e.g. due to hot process gases). Make sure the air supply for
the fan is adequate. Do not place the pump on soft surfaces (e.g. rubber foam) dur-
ing operation. This may cut back or block the fan's air supply. Check fan regularly for
dust/dirt, clean if necessary to avoid a cutback of ventilation.
A warm up period (approx. 15 min.) is required to ensure that the rated ultimate
vacuum and pumping speed are attained.

Shutdown

Short-term:
Has the pump been exposed to condensate?
Allow the pump to continue to run at atmospheric pressure for a few minutes.
Has the pump been exposed to media which may damage the pump materials or
form deposits?
Check and clean pump heads if necessary.
Long-term:
Take measures as described in section short-term shutdown.
Separate pump from the apparatus.
Close inlet and outlet port (e. g. with transport caps).
Store the pump in dry conditions.
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