GAS DETECTING DEVICE - RIKEN KEIKI Co.,Ltd.

Title:

GAS DETECTING DEVICE

Document Type and Number:

Japanese Patent JP3402431

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To allow calibration with a standard gas without detaching a gas detection unit from a partition.
SOLUTION: A gas detection device main body 1 comprising a gas detection unit 2 at the tip end of a supporting body 7, a guide member 21 for guiding the movement of the gas detection unit 2, a gas closing device 24 where the gas detection unit 2 connected to the rear end of the guide member 21 is allowed to be inserted, and an insertion opening forming member 25 which, connected to the rear end of the gas closing device 24, houses the detection unit 2 in the state where the gas detection unit 2 is drawn out to a position for valve- closure of the gas closing device to form a reference gas injection chamber 26, while an insertion opening 27 which air-tightly supports the gas measurement device main body 1 provided on the rear end side, are provided, and when maintenance is required, the gas detection unit 2 is drawn out to the rear of the gas closing device 24 so that two environments are shielded with the gas closing device 24, and the reference gas is injected from an injection opening 26a under the state.

Inventors:

Kiyoshi Nakajima
Yoshiaki Watanabe
Yukio Nakamura

Application Number:

JP34674496A

Publication Date:

May 06, 2003

Filing Date:

December 10, 1996

Export Citation:

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