Vega VEGAVIB 61 - Maintenance and fault rectification; 7.1 Maintenance; 7.2 Rectify faults; Checking the switching signal

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7Maintenanceandfaultrectication
VEGAVIB 61 • Two-wire 8/16 mA
29268-EN-170315
7 Maintenanceandfaultrectication
7.1 Maintenance
If the device is used properly, no special maintenance is required in
normal operation.
7.2 Rectify faults
The operator of the system is responsible for taking suitable meas-
ures to rectify faults.
VEGAVIB61oersmaximumreliability.Nevertheless,faultscanoc-
cur during operation. These may be caused by the following, e.g.:
•
Sensor
•
Process
•
Voltage supply
•
Signal processing
Therstmeasuretotakeistochecktheoutputsignal.Inmanycases,
thecausescanbedeterminedthiswayandthefaultsquicklyrectied.
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manned7daysaweekround-the-clock.Sinceweoer
this service worldwide, the support is only available in the English
language. The service is free, only standard call charges are incurred.
Error Reason Rectication
VEGAVIB 61 signals
"covered" without being
submerged(overllpro-
tection)
VEGAVIB 61 signals "un-
covered" when being
submerged (dry run pro-
tection)
Operating voltage too low Check operating voltage
Electronics defective Press the mode switch. If the instrument then changes
the mode, the vibrating element may be covered with
buildup or mechanically damaged. Should the switch-
ing function in the correct mode still be faulty, return the
instrument for repair.
Press the mode switch. If the instrument then does not
change the mode, the electronics module may be de-
fective. Exchange the electronics module.
Unfavourable installation
location
Mount the instrument at a location in the vessel where
nodeadzonesormoundscanform.
Buildup on the vibrating el-
ement
Check the vibrating element and the sensor for buildup
and remove the buildup if there is any.
Wrong mode selected Set the mode switch on VEGAVIB 61 to "max". Set the
correct mode on the signal conditioning instrument (A:
overllprotection;B:dryrunprotection).
Reaction when malfunc-
tion occurs
Causes of malfunction
Faultrectication
24 hour service hotline
Checking the switching
signal