Product Description: The Whistle Series portable four-in-one gas detector is an intrinsically safe device capable of continuously detecting combustible gas concentration and toxic gas concentration. It is suitable for explosion-proof, toxic gas leakage emergency response, underground pipelines, mines, and other places, effectively ensuring the safety of personnel and preventing damage to production equipment. The Whistle Series portable four-in-one gas detector detects gas through natural diffusion, using high-quality gas sensors as the sensitive components, which exhibit excellent sensitivity and repeatability. The detector is controlled by an embedded microcomputer, featuring simple operation, comprehensive functions, high reliability, and multiple adaptive capabilities. It utilizes a graphical liquid crystal display for intuitive and clear viewing. The compact and aesthetically pleasing portable design not only makes it attractive but also convenient for mobile use. The detector’s casing is made of high-strength engineering plastic combined with anti-slip rubber, providing high strength, good hand feel, and waterproof and dustproof capabilities

Alarm whistle YQBJ series portable four-in-one gas detector
Key Features: Four-in-one gas detection, diffusion sampling, STEL and TWA alarms, replaceable modular sensors
Product Overview
Application Scenarios
产品特点:
☆检测仪采用先进的超低功耗16位微控制器;
☆超宽视角图形液晶显示器;
☆可设置高低报警点,两级报警,屏幕显示报警类别;
☆标定浓度值可调,方便用户标定;
☆可燃气体传感器高浓度保护功能;
☆可燃气体传感器故障自检;
☆电池欠压提示;
☆提供实时时钟显示;
☆可更换的模块化传感器;
☆自动校准功能,减小检测误差;
☆两级三重报警(声、光、振动),不易忽略;
☆具有数据通讯功能;
☆毒性气体另有STEL和TWA报警;
☆开机自检测功能,并具有先进的自诊断和自修复功能;
☆密码管理功能,重要操作需密码验证,有效防止误操作;
☆本质安全型仪器。
产品参数
1、性能
检测气体:可同时***检测四种气体
检测方式:扩散式
量程范围:咨询厂家
检测原理:咨询厂家
准 确 度:≤±3%F.S;(实际浓度,更高精度要求根据传感器性能定)
重 复 性:±2%
响应时间:T90<30S(不同气体传感器响应时间不同)
2、电气特征
工作电压:DC3.7V
充电时间:≤4小时
工作时间:>20小时(常温下,无报警)
功 耗:< 3W
电 池 容 量:7500mAh锂电池,标称电压:3.7VDC
报 警 方 式:声、光、振动、屏幕指示
指 示 方 式:LCD显示实时数据及系统状态发光二极管、声音、振动指示报警、故障及欠压
3、结构特征
主体材质:ABS+PC
重 量:约350g
尺 寸:147mm×76mm×37mm(长×宽×高)
4、输出
数据传输:USB
5、电气使用环境
防护等级:IP66
防爆等级:ExiaⅡCT4 Ga/ExibD21T4
温度范围:-40℃~+50℃
湿度范围:10~95%RH(无凝露)
压力范围:86~106Kpa
6、执行标准:GB15322.3-2003, GB3836.1-2010, GB3836.2-2010, GB3836.4-2010,JJF1363-2012, JJF1364-2012, JJF1368-2012, JJF1421-2013,MT 704-2008, MT 703-2008, MT 1084-2008, GB 15322.3-2003



