VEGA VEGAVIB 61 - NAMUR - Manual (Page 25)

7 Maintenance and fault rectification
7 .1 Maintenance
If the instrument is used properly, no special maintenance is required
in normal operation.
7 .2 Remove interferences
The operator of the system is responsible for taking suitable measures
to rectify faults.
VEGAVIB 61 offers maximum reliability. Nevertheless, faults can occur
during operation. These may be caused by the following, e.g.:
l Sensor
l Process
l Voltage supply
l Signal processing
The first measure to be taken is to check the output signal. In many
cases, the causes can be determined this way and the faults rectified.
Should these measures not be successful, please call in urgent cases
the VEGA service hotline under the phone no. +49 1805 858550.
The hotline is available to you 7 days a week round-the-clock. Since
we offer this service world-wide, the support is only available in the
English language. The service is free of charge, only the standard
telephone costs will be charged.
Error Cause Rectification
VEGAVIB 61
signals
" covered" without being
submerged (overfill pro-
tection)
VEGAVIB 61
signals
" uncovered" when being
submerged (dry run pro-
tection)
Operating voltage too low Check operating voltage
Electronics defective Press the characteristic reversal switch. If the instru-
ment then changes the mode, the vibrating element
may be covered with buildup or mechanically damaged.
Should the switching function in the correct mode still
be faulty, return the instrument for repair.
Push the characteristic reversal switch. If the instrument
then does not change the mode, the electronics module
may be defective. Exchange the electronics module.
Unfavourable installation
location Mount the instrument at a location in the vessel where
no dead zones or air bubbles can form.
Buildup on the vibrating
element Check the vibrating element and the sensor if there is
buildup and remove it.
Reaction when malfunc-
tions occur
Failure reasons
Fault rectification
24 hour service hotline
Checking the switching
signal
VEGAVIB 61 • - NAMUR 25
7 Maintenance and fault rectification
31215
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EN
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