气体检测报警器JN20
Gas Detection Alarm JN20
JN型气体检测报警器采用优质进口传感器及芯片，先进的16位ADC数模转换信号采集技术，检测精度最高响应至PPm级别：具备自动零点校正，温度补偿，量程切换，免工具拆装维护功能；表面磨砂工艺喷涂，外观精致小巧防水、耐腐蚀。同时采用先进的OLED有机发光显示，无需背光，观察角度广，寿命可达3-5年。
4-20mA信号输出，内设2组继电器报警开关量输出功能，可实现在任何一级、二级开关量输出模式中，选择大于或小于设定值报警功能；可外接防爆型声光报警器，超过报警点能实现声音报警和光报警的警示作用。能精确测量有毒气体浓度，并且根据预设的报警设定值进行报警。
JN type gas detection alarm adopts high-quality imported sensors and chips, advanced 16-bit ADC digital-to-analog conversion signal acquisition technology, and the highest detection accuracy responds to PPm level: it has the functions of automatic zero point correction, temperature compensation, range switching, tool-free disassembly and maintenance, and the surface is frosted and sprayed, and the appearance is exquisite, small, waterproof, and corrosion-resistant. At the same time, it adopts advanced OLED organic light-emitting display, no backlight, wide observation angle, and life span of up to 3-5 years.
4-20mA signal output, with 2 groups of relay alarm switching output function, which can realize the alarm function of greater than or less than the set value in any first-level and second-level switching output mode; It can accurately measure the concentration of toxic gases and give alarms according to the preset alarm setting value.
