GEA Aseptomag AMV, Operating Instructions Manual

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11 Alarms
11.1 Malfunctions and remedies
Notice
Warning of damage to property/loss of product
Ignoring malfunctions may cause considerable damage to property and loss
of product. The safe operation of the valve in the event of a fault can no
longer be taken for granted and in the worst case can result in a loss of
sterility in the process.
► Make sure that malfunctions are quickly identified and promptly fixed.
In the event of malfunctions immediately deactivate the valve and secure it
against inadvertent reactivation. Malfunctions may only be remedied by qualified
staff, who must observe the safety instructions. For malfunctions not listed in the
table below, contact the manufacturer.
Malfunction Cause Remedy
Medium is leaking from the
clamp. The housing seal is not fitted
correctly or damaged. Fit the housing seal correctly
or replace it if damaged.
During pressure testing of the
internal assembly, air escapes
from the metal bellows.
The metal bellows on the
internal assembly is defective. Replace the complete internal
assembly.
Leak at the valve seat.
• The valve seat seal is
defective.
• Product deposits on the
valve seat.
• Replace the valve seat seal
or the PTFE bellows.
•
Check the housing.
The maximum valve stroke is
not reached when the valve is
actuated pneumatically.
Leakage in the actuator.
• Check the sealing surfaces
in the actuator for damage.
• Replace the seals.
Valve feedback not correct.
• The feedback unit is not
fitted correctly.
•
The proximity switch is not
in the correct position or is
defective.
•
Fault in the power supply.
• Check that the feedback
unit has been fitted
correctly.
• Check the position of the
proximity switch and re-
adjust if necessary.
• Check the wiring.
Alarms
Malfunctions and remedies
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56 11.03.2019