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8 Diagnosis, asset management and service
VEGABAR 86 • Secondary Device for electronic differential pressure
48048-EN-220817
8 Diagnosis, asset management and service
8.1 Maintenance
If the device is used properly, no special maintenance is required in
normal operation.
In some applications, product buildup on the diaphragm can influence
the measuring result. Depending on the sensor and application, take
precautions to ensure that heavy buildup, and especially a hardening
thereof, is avoided.
To identify possible undetected, dangerous failures, the safety func-
tion of the instrument must be checked in adaquate intervals by a
proof test.
During the function test, the safety function must be treated as unsafe.
Keep in mind that the function test influences downstream connected
devices.
If one of the tests proves negative, the entire measuring system must
be switched out of service and the process held in a safe state by
means of other measures.
You can find detailed information on the proof test in the Safety
Manual (SIL).
8.2 Rectify faults
The operator of the system is responsible for taking suitable meas-
ures to rectify faults.
The first measures are:
•
Evaluation of fault messages
•
Checking the output signal
•
Treatment of measurement errors
A smartphone/tablet with the adjustment app or a PC/notebook with
the software PACTware and the suitable DTM offer you further com-
prehensive diagnostic possibilities. In many cases, the causes can be
determined in this way and the faults eliminated.
Depending on the reason for the fault and the measures taken, the
steps described in chapter "
Setup
" must be carried out again or must
be checked for plausibility and completeness.
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 also available outside normal working hours, seven
days a week around the clock.
Since we offer this service worldwide, the support is provided in
English. The service itself is free of charge, the only costs involved are
the normal call charges.
Maintenance
Proof test
Reaction when malfunc-
tion occurs
Fault rectification
Reaction after fault recti-
fication
24 hour service hotline
