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1989年以来,云南曲靖地区的雄壁、丹凤、大冲沟和瓦鲁等四个乡镇煤矿中,投入使用了189台煤炭科学研究总院重庆分院生产的AZJ-85B型便携式沼指示报警仪。两年的应用中,这些报警仪共发出瓦斯超限警报85次,及时撤出人员895人次,有效地防止了瓦斯事故的发生。其中,仅大冲沟煤矿1990年3～5月份,就有5次煤与瓦斯突出前,由于报警仪发出警报,及时将工作人员撤至安全地点,才避免了人身伤亡事故的发生。
Since 1989, AZJ-85B Portable Weather Indicator Alarm System has been put into use in 189 township coal mines in Xiongbi, Danfeng, Dajingou and Varou in Qujing, Yunnan Province. . In two years of application, these alarm devices sent out 85 warnings of gas overrun and timely withdrawed 895 personnel, effectively preventing the gas accident. Among them, only from March to May 1990, before the occurrence of coal and gas outburst 5 times in the period of March to May, 1990, the accident of personal injury and death was avoided due to the alarm device sending an alarm and promptly evacuating staff to a safe place.