Maintenance and checkup, Routine checkup, Periodic checkup – Dwyer UXF2 User Manual
Page 101: Checking the zero point, Reapplying silicone-free grease
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5. MAINTENANCE AND CHECKUP
5.1. Routine checkup
Visually check the following items.
Ɣ Whether flow transmitter cover screws are loose.
ĺ Retighten.
Ɣ Whether cable glands are loose.
ĺ Retighten.
Ɣ Whether detecter mounting band is loose.
ĺ Tighten.
Ɣ Whether received wave is abnormal (LED lit red). ĺ Check whether piping is filled or not. Remove bubbles or
foreign matters, if mixed in measurement pipe. Also check
if detecter mounting and wiring are properly configured.
5.2. Periodic checkup
5.2.1. Checking the zero point
Stop the fluid flow, fill the measurement pipe fully, and check the zero point.
5.2.2. Reapplying silicone-free grease
When using silicone-free grease for the acoustic coupler, reapply it on the transmission surface of the sensor unit
approximately once every 6 months.
• How to remove the sensor unit
Refer to3.8.
• How to mount the sensor unit
Refer to 3.5.4. and 3.6.7.
Note: Silicone rubber need not be reapplied.
BULLETIN F-70