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

Maintenance

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.
WARNING: Do not remove cover when an explosive dust
atmosphere is present.
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.

Recommended spare parts

• WS300 circuit card (based on Resolution and Connections)
• Pepperl+Fuchs IS switch isolator (if required)
7ML19985ML01 SITRANS WS300 Speed Sensor – OPERATING INSTRUCTIONS Page 15