Zhengzhou Winsen Electronics Technology Co., Ltd

www.winsen-sensor.com

Tel: 86-371-67169097/67169670

Fax: 86-371-60932988

Email: sales@winsensor.com

Leading gas sensing solutions supplier in China!

2. Usage Steps

2.1 Insert the module into the socket, cover the shell and twist the screw tightly, connect to DC power

supply, turn on the switch to light up the miner’s lamp.

2.2 When the CH4 concentration gets higher than the preset alarm point, the module can control the lamp

to flicker with alarming; when the CH4 concentration is lower than the preset alarm point, the module can

control the lamp to recovery the normal light status.

3.Calibration

3.1 Zero calibration

Turn on and keep the status for 10 minutes, press the “-” key in the remote control direct to the indicator,

then the zero calibration is finished.

3.2 Set the alarm point

inlet, press “+”key in the remote control at the same time, then the yellow light begins flicking and it

keeps about for 20 seconds. The calibration finishes once the flicking stops. Then the red light is flicking

and main light begins twinkle, the alarm point is set.

3.3 Check the alarm point

After warming up, flow in 0.90%CH4 gas with 150-160mL/min flow. After the flowing is stability for 20s,

the module shouldn’t alarm and the light doesn’t flicking. If it flicks, it means the preset alarm point is

lower and calibration should be done again; Then flow in 1.0%CH4 gas with 50-160mL/min flow, after the

flowing is stability for 20s, the module should alarm. Otherwise calibration should be done again until it

confirm to the above description.

4 Maintain

4.1 Keep the louver clean and make the gas composition in module and out module same.

4.2 Please do the calibration using recommended gas of coal industry weekly to ensure the good accuracy

of the alarm point.

4.3 Please brush the module surface gently to remove pollutants if required. Do not use acidic or alkaline

cleaning agent.

4.4 If the module is sprinkled with water accidently, please cut the power immediately, and send the