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9-18
Chapter 9 Maintenance and Inspection
9-5 Maintenance and Inspection of Liquid Level
Transmitter for Sludge and Seawater
The liquid level transmitter for sludge and seawater (optional specifications 1: P00) has a structure in which a unit
for protection of the pressure-receiving diaphragm is attached to the top of the probe. The following describes the
procedure if the product needs to be disassembled or assembled to replace the rubber diaphragm or for cleaning.
„
Disassembly
(1) Loosen the six bolts at the top of the probe and remove them.
(2) Remove the ring, and then detach the rubber diaphragm. (
Fig. 9-1
)
(3) Turn the cover to remove it.
Fig. 9-27. Pressure-receiving diaphragm with rubber diaphragm
Handling Precautions
y
Exercise care not to scratch the metallic diaphragm when disassembling.
„
Assembly
(1) Point the top of the probe straight upward and pour silicone oil or distilled water onto
the metallic diaphragm until it overflows.
Fig. 9-28. Pour silicone oil onto the metallic diaphragm
Ring Rubber diaphragm Bolt
O-ring
Cover
Silicone oil Metallic diaphragm