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Service and maintenance
Periodic recalibration
If the flowmeter is properly installed, the zero and span calibrations will require limited
attention. However, to maintain the flowmeter's accuracy, redo the zero and span calibration
periodically. The frequency of recalibration is dependent on the application in which the
flowmeter is being used and the severity of its operating conditions. Perform frequent
recalibrations initially and note the deviations, then reduce the frequency as time and
experience dictate.
Refer to the Programming and calibration sections of the integrator manual.
System checks
On hazardous approved flowmeters the load cell has an extra protective cover that protects
the electronic circuitry within the cell. Periodically clean the gap between the cover and the
cell to ensure material does not build up and reduce or stop deflection of the sensing plate.
If material sticks to the sensing plate, clean the impingement area regularly. If sticking of the
material persists, contact your Siemens representative.
Check for material bridging across the load cell or sensing plate to the housing which can
restrict the movement of either component.
Do not strike the flowmeter, its components, or adjacent piping to dislodge material.
Check for wearing of the sensing plate. If wear is excessive contact your Siemens
representative.
Cleaning
The flowmeter's access door seal is removable for quick and easy cleaning.
Spraying the load cell directly with high pressure may damage the load cell.
SITRANS WF100
Operating Instructions, 08/2021, A5E51108132-AA
WARNING
WARNING
CAUTION
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