EM-CH4 甲烷气体报警仪
EM-CH4 Methane Gas Alarm Instrument Overview
The EM-CH4 methane gas alarm instrument is a professional safety monitoring device designed to detect methane (CH4) concentrations in various environments. Utilizing advanced electrochemical sensing technology, this portable instrument offers precise measurements with a resolution of 1ppm and ≤±5% accuracy. It features diffusion sampling (optionally upgradeable to pump suction) with rapid response time under 40 seconds. The compact design (115×55×28mm, 140g) incorporates a bright LCD digital display with backlight, while touch-sensitive buttons ensure easy operation in low-light conditions. Triple-alarm functions including sound (≥80dB), flashing LED lights, and vibration provide comprehensive warning when methane levels exceed user-defined thresholds. The device operates on 3.6V-4.5V DC dry batteries with environmental adaptability from -15℃ to +45℃ and ≤95%RH humidity. Its robust construction and 2-year sensor lifespan make it suitable for industrial safety, residential gas leak detection, and energy sector applications.14
EM-CH4甲烷气体报警仪产品介绍
EM-CH4甲烷气体报警仪是一款采用电化学原理的智能化安全检测设备，专为甲烷（CH4）浓度监测设计。该仪器通过扩散式采样（可升级为泵吸式）实现1ppm分辨率的高精度检测，测量误差≤±5%FS。115×55×28mm的轻巧机身（140g）配备高清液晶数字显示屏和触摸按键，支持背光功能便于黑暗环境操作。当甲烷浓度超过预设报警点时，仪器同步启动≥80dB声报警、强光闪烁及振动提示三重报警机制。工作电压为3.6-4.5V直流干电池供电，适应-15℃至+45℃工作温度及95%RH以下湿度环境。核心传感器寿命≥2年，响应时间≤40秒，可满足石油化工、天然气输配、煤矿井下等多种场景的连续监测需求。人性化设计包括可调节报警阈值和便携式结构，既适用于固定场所安装也方便移动巡检使用。16
Key Functional Features
This instrument demonstrates multi-directional alert capability through simultaneous audible (80dB minimum), visual (high-intensity LED), and tactile (vibration motor) warnings. The modular sensor architecture allows maintenance-free operation with automatic temperature compensation and zero-point tracking. Users can flexibly configure alarm thresholds via ergonomic membrane buttons, while the IP65-rated enclosure provides dust/water resistance. The 2.31-inch color display graphically presents real-time concentration, historical peaks, and system status. Built-in memory stores 100,000 data points with USB export functionality for analysis. Its catalytic combustion sensor ensures selective CH4 detection without cross-interference from other gases, with optional infrared sensor variants available for specific applications. The lightweight housing integrates anti-static and EMI shielding for hazardous area use.712
核心功能特性
该设备集成了声（≥80分贝）、光（高亮LED）、震（马达振动）三维报警系统，采用防误触按键设计实现报警点自由设定。智能化设计中包含自动温补算法和零点追踪功能，避免长期使用产生的漂移误差。2.31寸彩屏实时显示浓度曲线、最大值记录及电池状态，10万条数据存储支持USB导出分析。催化燃烧原理传感器专一检测甲烷气体，可选配红外原理版本应对特殊场景。机身通过抗电磁干扰设计并整合防静电处理，符合危险区域使用要求。内置水汽粉尘过滤器和聚合物锂电池，连续工作时间达9小时以上，配备Type-C充电接口兼容移动电源供电。防震结构设计能承受工业环境中的机械冲击，保持测量稳定性。721
Application Scenarios
Typical applications include natural gas facilities for pipeline leak detection, coal mines monitoring goaf gas accumulation, wastewater treatment plants controlling biogas emissions, and residential kitchens safeguarding against liquefied petroleum gas leaks. In agricultural settings, it effectively monitors methane levels in livestock barns and anaerobic digestion tanks. The instrument serves critical safety functions across energy production sites including wellheads, compressor stations, and LNG storage terminals. Municipal workers deploy it for underground utility vault inspections, while fire departments utilize its rapid response capability during emergency gas incident response. Industrial maintenance teams rely on its durable performance for confined space entry checks and process equipment maintenance safety verification.424
典型应用场景
本产品广泛应用于天然气输配站的管道泄漏巡检、煤矿井下采空区瓦斯监测、污水处理厂沼气收集系统等工业安全领域。在民用方面，可有效预防家庭厨房液化气泄漏风险，保障住宅安全。农牧业中适用于畜禽养殖场粪污处理池、沼气工程的甲烷浓度监控。能源行业涵盖井场、压缩站、LNG储罐区等关键部位的安全防护。市政抢险中用于地下管廊、窖井等有限空间的作业前气体检测，消防救援场景能快速定位泄漏源。工业检修团队将其作为设备维护前的安全保障工具，满足受限空间进入的合规性检查需求。仪器同时适合环保部门对填埋场、化工厂边界的甲烷排放监测。920
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特点或功能：
1、扩散式（可加电泵改成泵吸式）
2、液晶数字显示
3、声、光、振动同时报警
4、供电电压DC3.6V～4.5V干电池
5、报警点可自行设定（出厂设置：参见表格）
6、触摸式按键操作简单
7、高亮背光
8、精度：≤±5％
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技术参数：
1.检测气体：NH3/H2/SO2/NO/CL2/NO2/PH3/CH2O
2、检测原理：电化学方式
3、检测范围：
NH3：0～2000ppm
H2: 0～2000ppm
SO2: 0～100ppm
NO: 0～100ppm
CL2: 0～20ppm
NO2: 0～20ppm
PH3: 0～25ppm
CH2O:0～50ppm
4、分辨率：1ppm
5、检测方式：扩散式（可加电泵改成泵吸式）
6、显示方式：液晶数字显示
7、报警误差：≤±5％（F.S）
8、报警方式：声、光、振动报警
9、响应时间：≤40s
10、传感器寿命：≥2年
11、使用环境：温度－15℃～＋45℃；相对湿度：≤95％RH
12、外形尺寸：115×55×28mm
13、重量：140g
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用途或应用域：
▲适用于矿山、冶金安环、石化、电力、电信、市政等多种场合
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