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MX240型双传感器甲烷/氧气监测仪(见图)是美国国民矿山服务公司的产品,该仪器经美国劳工部矿山健康与安全(MSHA)批准用于煤矿瓦斯超限及缺氧的监测报警,以保证井下作业人员的生命安全。仪器也可供矿山救护队及通风瓦斯检查员用。在仪器的液晶显示屏上可以交替地显示出所在环境空气中的甲烷及氧气浓度的百分数值。监测甲烷时的显示范围是0～3.0%,精度为0.1%。监测氧气时的显示范围是0～
The MX240 Dual Sensor Methane / Oxygen Monitor (see photo) is a product of National Mine Services, a division of the U.S. Department of Labor’s Mines Health and Safety (MSHA) approved for mine gas over-limits and anoxic monitoring Ensure the safety of underground workers. The instrument is also available to mine rescue teams and ventilation gas inspectors. In the instrument’s LCD screen can be alternately displayed in the ambient air methane and oxygen concentration percentage value. The monitoring range for methane is 0 to 3.0% and the accuracy is 0.1%. When monitoring the oxygen display range is 0 ~