Switching Off And Shut Down - LEYBOLD TRIVAC E Serie Gebrauchsanleitung

Operation
2.6 Switching Off
and Shut Down
During normal use of the TRIVAC D 1,2 - 1 0 E it will be
sufficient to electrically switch off the pump. Further mea-
sures are not required.
After having pumped condensable media, let the pump
run for some time with the gas ballast valve open and the
intake line blocked (see Section 2.5.2).
When pumping aggressive or corrosive media and also
in the case of long process interruptions (overnight, for
example) we recommend that you let the pump run with
the intake line sealed and with the gas ballast switched
on.
This helps to prevent the occurrence of standstill corro-
sion.
If the pump is to be switched off for a longer period of
time after it has been pumping aggressive or corrosive
media or if the pump is to be shelved, proceed as follo-
ws:
W a r n i n g When hazardous substances have been
pumped ensure that the appropriate safety
precautions are observed.
For more information please contact our
technical sales department.
2.6.1 Shut-Down through Monitoring
Components
W a r n i n g When the pump has been switched off due
to overheating sensed by the motor coil pro-
tector, the pump must only be started
manually after the pump has cooled down
to the ambient temperature and after having
removed the cause first.
2.6.2 Failure of the Control System
or the Mains Power
W a r n i n g In order to prevent the pump from running
up unexpectedly after a mains power failu-
re, the pump must be integrated in the con-
trol system in such a way that the pump can
only be switched on again manually. This
applies equally to emergency cut-out arran-
gements.
Seal off the intake port. The use of special conservation
or anti-corrosion oils is not required.
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