RACK BUILT-IN TYPE GAS ALARM SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a rack built-in type gas alarm system in which parts can relatively easily be exchanged without needing a special tool. SOLUTION: A pump unit 30 and a gas sensor 23 which are frequently subjected to maintenance are elastically held by a fixing frame 7 with insertable and extractable fixtures 34 and 52, and the fixing frame 7 can also be inserted and extracted into/from a base body.