JCB Methane Alarm Tester Introduction
JCB Methane Alarm Tester with small volume, light weight, simple operation, easy maintenance, etc. Instrument adopt membrane touch switch, sealed performance is good, accurate, reliable and JCB4 methane alarming device is a personal portable instruments. With sound and light alarm, clock display, under voltage automatic shutdown, and other functions.With sound and light alarm, clock display, under voltage automatic shutdown, and other functions.The instrument is widely used in the coal mine is flammable combustible gas mixture of working environment for the continuous monitoring of methane concentration, and with sound and light alarm when overloaded.
JCB Methane Alarm Tester Parameters
（1）Type of protection Mine intrinsically safe and flameproof Mark ExibdI
（2）Measurement range 0-4％CH4
（3）Measuring error （0-1）％CH4 ±10%CH4；>1%CH4，true value±10%
（4）Alarm range （0.5-2.5）％CH4
（5）Alarm error range （0.5-1）％CH4± 0.10%>（1-2）％CH4 true value±10%
（6）dB output ≥80dB The dark light visibility20m
( 7 ) Continuous operating time ：9h
（8）Battery life ：And release 500
（9）Rated working voltage DC3.6V open-circuit voltage
（10）DC4.3VRated output current ≤240mA short-circuit current 2.6A
JCB Methane Alarm Tester Use Environment
1）Temperature : 0-40℃;
2）Atmospheric pressure 86kpa－106kpa；
3）Relative humidity： ≤98％（25℃）；
4）Wind speed ：0—8m/s
5）Without enough gas corroded metal shell and electrical insulation
6）No direct leaching water and strong shock vibration environment.
JCB Methane Alarm Tester Figure Photos
Due to the production batch, the specific model is different, the above of pictures are for reference only, for further details you can contact our sales staff to carry out the specific verification .
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