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可燃性ガス監視器のアラーム設定

2017-09-15View Original

Thread Content

可燃性ガス警報検出において、検出器の現場用音声・光警報点、警報盤またはDCSシステム内の高・低警報点、さらに連動ファンの警報点としてどれくらい設定するのが適切か?一致する必要がありますか?
Reply #22017-09-15
可燃性ガス警報値:第一段階の警報は爆発下限の25%、第二段階の警報は爆発下限の50%です。
Reply #32017-09-19
国標GB50493では、1級は25%LELを報告し、2級は50%LELを報告することと規定されている。1級は警報に該当し、2級は連鎖が必要です。

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