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7 Diagnosis, asset management and service
WIKA Operating Instructions - Process pressure transmitter IPT-2x
7 Diagnosis, asset management and service
7.1 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.
The cleaning helps that the type label and markings on the instrument
are visible.
Take note of the following:
•
Use only cleaning agents which do not corrode the housings, type
label and seals
•
Use only cleaning methods corresponding to the housing protec-
tion rating
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
•
Checking the output signal
•
Treatment of measurement errors
Further comprehensive diagnostics options are available with a PC/
notebook 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.
7.3 Exchange process module on version IP68
(25 bar)
On version IP68 (25 bar), the user can exchange the process module
on site. Connection cable and external housing can be kept.
Required tools:
•
Hexagon key wrench, size 2
Caution:
The exchange may only be carried out in the complete absence of
line voltage.
In Ex applications, only a replacement part with appropriate Ex ap-
proval may be used.
Maintenance
Precaution measures
against buildup
Cleaning
Reaction when malfunc-
tion occurs
Fault rectification
Reaction after fault recti-
fication
