Fuji Electric Time Delta-C FSV-2, Instruction Manual

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6. CHECK AND MAINTENANCE
6.1. Daily Check
Visually check the following items.
 Whether flow transmitter cover screws are loose.  Tighten.

Whether cable glands are loose.

Tighten.
 Whether detector mounting band is loose.  Tighten.

Whether received wave is abnormal (LED lit red).

Check whether piping is filled or not. Remove bubbles or foreign
matters, if mixed in measurement pipe. Also check if detector
mounting and wiring are set up properly.
 Whether temperature is abnormal (LED lit red).  Check whether resistance bulb (RTD) is damaged or not,
temperature is outside the range or not. (When 1-path/energy
measurement is selected.)
6.2. Periodic Inspection
6.2.1. Checking zero point
Stop the fluid flow, fill the measurement pipe fully, and check the zero point.
6.2.2. Reapplying grease
When using grease for the acoustic coupler, reapply it on the transmission surface of the sensor unit approximately once
every 6 months.
Note) Silicone rubber need not be reapplied.
Refer to the separate instruction manual “ULTRA SONIC FLOWMETER DETECTOR”