| 摘要 |
PROBLEM TO BE SOLVED: To surely wash an inside of an adaptor attaching member and a surface of a seal diaphragm in a measured pressure side, and to surely remove a foreign matter such as dust. SOLUTION: The adaptor attaching member 50 is brought into close contact with one side face 9 of a transmitter body 2 via a sealing member 52, and is fixed removably by a fixing means 53. A pressure receiving adaptor 4 having a wetted diaphragm 39 is attached detachably to a small-diametric part 3b of the member 50 by screwing. A sealing liquid 44 is charged from a charging hole 42 into a communication hole 27 of the member 50, a chamber 29 in a surface side of the seal diaphragm 11, a pressure leading passage 41 of the adaptor 4, and a diaphragm chamber 43 of the diaphragm 39, to be sealed by a sealing means 47. When the adaptor 4 is replaced, the adaptor attaching member 50 is removed from the transmitter body 2 to be washed.
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