6
Maintenance
WARNING: If the transmitter being serviced is to be used in a hazardous
area, the rules of compliance with current standards
concerning flameproof equipment must be strictly adhered to.
6.1 GENERAL
The 7828 Density Transmitter has no moving parts and maintenance is limited to simple
visual checks for leaks and physical damage.
ADView’s Data Logging facility can be used whenever necessary to verify that the
transmitter is functioning correctly.
Check calibrations should be carried out at specified intervals in order to identify a
malfunction or a deterioration in transmitter performance. If a fault or a drop in
performance is detected, further tests are required to identify the cause of the fault.
Remedial action is limited to cleaning the transducer tines, making good any poor
connections, and replacing the internal electronics. In the extreme cases the complete
transducer may need to be replaced.
Note: The electronics within the 7828 contain calibration information relevant to that
particular transmitter only. The circuit boards operate as a pair, and therefore both boards
must be changed together. Contact Solartron for more details if you need to change the
boards.
CAUTION: Care is essential in handling of the transducer during its removal from
and fitment to the pipeline/tank and during transportation. Wherever
possible, retain and use the original packaging.
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