| Customization: | Available |
|---|---|
| IP Grade: | IP54 |
| Ex Grade: | Exibimb |
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The GQQ5 type smoke sensor (hereinafter referred to as the sensor) is applicable to the environment of the underground coal mine which contains the explosive gas (ch4), as well as the work place such as the open-pit coal mine, the coal preparation plant and the like, and is used as the detection of the smoke protection signal of the protection device of the mine belt conveyor
Ambient temperature:0ºC~+40ºC;
Average relative humidity:No greater than 95%(+25ºC)
Atmospheric pressure:80kPa~106kPa
No significant vibration and impact
There is a dangerous environment such as gas, coal dust and so on in the coal
mine, but it does not destroy the insulating corrosive gas.
Wind speed:0~8m/s
Operating voltage:DC12±0.5V
Intrinsically safe operating current:≤150mA
Outline dimension:Φ130×160mm
Weight:4KG
Action condition:When smoke concentration 5%obs/m
Explosion-proof mark:Exd ib I Mb
Output signal:In smoke-free state, the contact is disconnected and the leakage resistance is not less than100kΩ
When there is a smoke state, the contact is closed and the voltage drop is not greater than 0 .5V(Infill current 2mA)
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