VEGA VEGABAR 87 Save sensor - Operating Instructions - Manual (Page 38)

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7 Diagnosis, asset management and service
VEGABAR 87 • Slave sensor for electronic differential pressure
45053-EN-131011
7 Diagnosis, asset management and service
7.1 Maintenance
If the instrument 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.
7.2 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, for example via the display and
adjustment module
•
Checking the output signal
•
Treatment of measurement errors
Further comprehensive diagnostics options are available with a PC
with PACTware and the suitable DTM. In many cases, the reasons can
be determined in this way and faults rectified.
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.
7.3 Exchanging the electronics module
In case of a defect, the user can replace the electronics module with
another one of identical type.
In Ex applications, only instruments and electronics modules with ap-
propriate Ex approval may be used.
If there is no electronics module available on site, one can be ordered
from the agency serving you.
7.4 Exchange process assembly with version
IP 68 (25 bar)
With version IP 68 (25 bar), the user can exchange the process as-
sembly on site. Connection cable and external housing can be kept.
Maintenance
Reaction when malfunc-
tions occur
Procedure for fault recti-
fication
Reaction after fault recti-
fication
24 hour service hotline