Service And Maintenance; Inspection; Recommended Spare Parts - Siemens SITRANS WS300 Operating Instructions Manual

Service and maintenance

5.1

Inspection

Periodically the cover should be removed and the enclosure and circuit board should be
cleaned for dust and grime buildup. If cleaning is required, disconnect the power and use a
vacuum cleaner and a clean, dry paintbrush. While the cover is off, check all electrical
contacts for corrosion and evidence of arcing.
Removing the cover
Do not remove cover when an explosive dust atmosphere is present. De-energize before
opening.
Wear on the bearings is detected by excess play or sound. If the bearings exhibit excess
play or produce an unreasonably loud sound, the speed sensor should be returned to
Siemens for repair.
Ensure that the lid screws are tightened to maintain the IP rating by compressing the lock
washers flat.
5.2

Recommended spare parts

● WS300 circuit card (based on Resolution and Connections)
● Pepperl+Fuchs IS switch isolator (if required)
Note
Bearings and shaft seal are to be inspected for wear every 3 to 4 months to ensure proper
sealing to enclosure and to reduce the potential for ignition from heat buildup due to friction.
SITRANS WS300
Operating Instructions, 06/2018, A5E4505935-AA
WARNING
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