GEA VARIVENT A, Перевод оригинальной инструкции по эксплуатации

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Malfunctions
Malfunctions
In the event of malfunctions immediately deactivate the control valve and secure it
against inadvertent reactivation. Malfunctions may only be remedied by qualified staff,
who must observe the safety instructions.
Malfunction Cause Remedy
Valve does not work Fault in the control system Check the system configuration
No compressed air
Compressed air pressure
too low Check the compressed air supply
Check air hoses for free passage and
air tightness
Fault in the electrical
system Check actuation and routing of elec-
trical lines
Valve disk blocked
mechanically Clear the blockage
Stroke scanning lever has
shifted Readjust the stroke scanning lever
Actuator not working
correctly as a result of the
control air being soiled Check the control air quality
Replace the positioner
Diaphragm defective Replace the diaphragm
Valve does not close tight Dirt/foreign materials in the
valve housing Clean the valve housing
Valve stroke too short as
air pressure too low Check the compressed air supply
Leakage at the housings O-ring/V-ring defective Dismantle the valve housing, replace
the seals