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北京車(che)載(zai)式甲烷(wan)斷(duan)電(dian)儀(yi)（以(yi)(yi)下簡稱斷(duan)電(dian)儀(yi)），適用于煤(mei)礦(kuang)中(zhong)有瓦(wa)斯(si)（甲烷(wan)）和(he)煤(mei)塵危險的場合，與配接設(she)備(bei)GJC4（B）煤(mei)礦(kuang)用低(di)濃(nong)度(du)甲烷(wan)傳(chuan)(chuan)感器（以(yi)(yi)下簡稱傳(chuan)(chuan)感器）配接，安裝在(zai)蓄電(dian)池(chi)電(dian)機車(che)以(yi)(yi)及礦(kuang)用柴油車(che)上，能連(lian)續自(zi)動監測電(dian)機車(che)以(yi)(yi)及柴油車(che)所在(zai)位置的瓦(wa)斯(si)濃(nong)度(du)，當(dang)瓦(wa)斯(si)濃(nong)度(du)達到或超過預置報(bao)警(jing)值(zhi)時，傳(chuan)(chuan)感器立即發出聲(sheng)、光報(bao)警(jing)信號，當(dang)瓦(wa)斯(si)濃(nong)度(du)超過預置斷(duan)電(dian)值(zhi)時。

北京機載式(shi)甲烷斷(duan)(duan)電(dian)(dian)儀由甲烷傳(chuan)感(gan)器(qi)和主(zhu)機和遙(yao)控(kong)器(qi)組成，適用(yong)(yong)于煤(mei)礦井下各作(zuo)業(ye)場所的(de)采煤(mei)機、掘進機等設(she)備(bei)，為各種傳(chuan)感(gan)器(qi)提(ti)(ti)供直流本安電(dian)(dian)源。當甲烷達到(dao)一定(ding)濃度時進行(xing)超(chao)限報警(jing)，到(dao)達斷(duan)(duan)電(dian)(dian)點(dian)的(de)時候(hou)進行(xing)斷(duan)(duan)電(dian)(dian)。斷(duan)(duan)電(dian)(dian)儀主(zhu)機具有數(shu)字(zi)顯示、紅外線(xian)遙(yao)控(kong)調校功能，能檢測甲烷傳(chuan)感(gan)器(qi)信(xin)號和提(ti)(ti)供斷(duan)(duan)電(dian)(dian)（指令(ling)）輸出。斷(duan)(duan)電(dian)(dian)點(dian)、報警(jing)點(dian)的(de)設(she)定(ding)和斷(duan)(duan)電(dian)(dian)控(kong)制方式(shi)的(de)設(she)定(ding)均(jun)通過(guo)遙(yao)控(kong)器(qi)進行(xing)此(ci)儀器(qi)有備(bei)用(yong)(yong)電(dian)(dian)池。