12 Maintenance and cleaning
12.1 Maintenance PIOX S72*
2022-05-15, UMPIOX_S72xV1-9EN
134
12.1 Maintenance
The transmitter and the transducers are practically maintenance-free. In order to ensure security, the following
maintenance intervals are recommended:
12.2 Cleaning
Stainless steel housing
• Clean the housing with a soft cloth and care and cleaning spray for stainless steel.
Aluminum housing
• Clean the housing with a soft cloth. Do not use detergents.
Transducers
• Remove traces of coupling compound from the transducers with a soft paper towel.
12.3 Calibration
If installed as recommended in an appropriate location, used cautiously and serviced conscientiously, no troubles should
appear.
The transmitter has been calibrated at factory and, usually, a recalibration is not necessary.
A recalibration is recommended if:
• the contact surfaces of the transducers show visible wear
• the transducers were used for a prolonged period at high temperatures (several months > 130 °C for normal transducers
or > 200 °C for high temperature transducers)
In order to realize a recalibration under reference conditions, either the transmitter, the transducers or both have to be sent
to FLEXIM.
12.4 Firmware update
A firmware update is carried out with FluxDiagReader or FluxDiag (option).
• For the connection of the transmitter to a PC, see section 8.6.
• For the operation of FluxDiagReader or FluxDiag see the help functions of these programs.
Tab. 12.1: Recommended maintenance intervals
item maintenance step interval measure
stainless steel housing
• transmitter
• junction box
• transducer mounting fixture
visual inspection for corrosion
and damages
annually or more
frequently, depending on
the ambient conditions
cleaning
visual inspection for
contamination
annually or more
frequently, depending on
the ambient conditions
aluminum housing
• transmitter
visual inspection for
contamination
annually or more
frequently, depending on
the ambient conditions
transducers check of the transducer
coupling on the pipe
annually replacement of coupling foil, if
necessary
transmitter check for firmware updates annually update, if necessary
transmitter functional test annually reading of measured and
diagnostic values
transmitter and transducers calibration - see section 12.3
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