Maintenance / Service
Time intervals
Beck GmbH
Druckkontrolltechnik
Ferdinand-Steinbeis-Straße 4
71144 Steinenbronn
Operating instructions – Pressure Switch - Model-930...EX
Rev.9
Page 10 of 18
6 Maintenance / Service
The equipment can only be guaranteed to operate safely and reliably in the long term if regular
inspections and servicing are carried out. These include the following:
For cleaning the devices it is necessary to take care that no electrostatic charging will be done (no
high volume flow, cleaning only with damp cloth,…)
An inspection includes
Visual inspection
o
Mechanical damage
o
Non-permitted dust deposits
o
Other irregularities or error messages from the equipment
Checking of components (wearing parts) whose functionality or purpose changes and af-
fects the operation of the equipment
Documentation of what was done by whom, and when
Maintenance includes
Functionality checking
o
Operating statuses such as alarms etc.
Checking calibration values (= calibration)
o
Triggering of alarms by known process parameters (test pressure etc.)
Correction of calibration values (= calibration) must be carried out in the factory
Documentation of what was done by whom, and when
6.1 Time intervals
Inspection:
The condition of the equipment must be checked at regular intervals. The time interval is extreme-
ly dependent on the local situation and the degree of use, and must therefore be adapted to re-
quirements. Extremely short time intervals can be specified such as once per day, every new shift
etc.
Defined by the operator in accordance with local requirements
Maintenance
The interval from the applicable usage regulations must be taken into consideration
As a manufacturer we recommend a maximum interval of 1 year
6.2 Troubleshooting
A list of possible faults (fault indications) can be found in the table below.
The table contains an explanation of how to detect faults.
A list of possible causes and remedial measures also follows.
Fault indication
Possible cause
Measures
Contact won’t switch
Defective diaphragm
Replace pressure switch
Spring defective
Pressure connection blocked
Pressure outside working range
