Functional Features：

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The GY602Ex explosion-proof photoelectric smoke detector is used for early fire detection in explosion-proof areas prone to smoke generation. It is used together with the explosion-proof interface box GM742 to realize the monitoring of open circuit. After an alarm is triggered, the voltage across the detector is clamped between 4.5V-6.5V.

Technical Parameter：

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Operating voltage: DC16V~28V (powered via safety shelter)

Quiescent current: ≤200μA 

Response threshold: 0.44db/m~0.67db/m 

Alarm confirmation light: Red 

Explosion-proof mark: ExibICT6

Intrinsic safety explosion-proof parameters: Ui-28VDCli:293mA Pi:0.65W Ci0μF Li:0mH

Overall dimensions: diameter 101.4mm   height 46.1mm（without base）

Usage environment：

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Temperature: -10℃～+50℃

Relative humidity: ≤95%