汽油在常温下为无色至淡黄色的易流动液体，很难溶解于水，易燃，馏程为30℃至220℃，空气中含量为74～123克/立方米时遇火爆炸，建议在汽油场所配置汽油气体检测（探测）报警器，防止爆炸、火灾事故的发生。
汽油气体报警器(Gasoline Gas Alarm)由汽油气体气体检测测器(Gasoline gas detector)与汽油气体报警控制器(Gasoline gas controller)构成，广泛应用于石油、燃气、化工、油库等存在有毒气体的石油化工行业，用以检测室内外危险场所的泄漏情况，是保证和人身安全的重要仪器。
当被测场所存在汽油气体时，气体检测器将气信号转换成电压信号或电流信号传送到气体报警控制器，仪器显示出可燃气体爆炸下限的百分比浓度值。当气体浓度超过报警设定值时发生声光报警信号提示，值班人员及时采取安全措施，避免燃爆事故发生。
汽油气体检测（探测）报警器产品特点：
◆ 测量准确：传感器采用进口气体敏感元件，精度高，零点漂移小，抗中毒性能好。
◆ 防爆设计：可用于工厂条件的1、2区危险场合。
◆ 维修方便：传感器采用数字化模组设计，现场更换时无需校零、标定。
◆ 声光报警：气体检测器可选配专用的防爆声光报警器，实现现场声光报警。
◆ 浓度显示：气体检测器可选配液晶浓度显示，现场实时显示浓度。
汽油气体检测（探测）报警器技术参数
| 检测气体 | 汽油气体 | 检测原理 | 催化燃烧式 |
| 检测范围 | 0-LEL | 供电电源 | DC36V±15% |
| 功率 | ＜1W | 通讯方式 | M-BUS 两总线 |
| 信号输出 | 一组无源常开信号 | 连接线缆 | RVS 2×2.5mm2 |
| 准 确 度 | ±5%FS | 响应时间 | 催化燃烧式 T90＜30s |
| 材 料 | 铸铝 | 防爆链接螺纹 | G3/4″内螺纹 |
| 防爆标志 | Exd IIC T6 Gb | IP等级 | IP65 |
| 工作温度 | -40℃～70℃ | 湿度范围 | 10%RH～95%RH |
| 压力范围 | 86Kpa～106Kpa | 存储温度 | -25℃～55℃ |
| 外形尺寸 | 190×130×75mm | 重 量 | 1.5kg |
| 安装方式 | 贴壁式、抱管式、穿管式 |
Gasoline Gas Detect Alarm
Gasoline at normal temperature, is a colorless or light yellow, free running liquid, hard to dissolve in water, inflammable, boiling range 30℃~220℃. The content of gasoline in air is between 74 and 123 g per cubic meter, fire star causes explosion. Gasoline gas alarm should be configured in gasoline site, taking precautions against explosion and fire.
Gasoline gas alarm consisting of gas detector and gas controller, is widely used in oil chemical lines (such as oil station, gas station, chemical industry, oil depot), monitoring the leakage, guarding the safety of body and property.
When the gasoline gas is detected, the detector turns gas signal into voltage signal or current signal, then sends the signal to the controller that displays the percentage concentration value. If the concentration exceeds the set value, the controller sends audible and visual alarm. The operator on duty adopts timely safety measures, avoiding burning explosion.
Feature of gasoline gas alarm
1. Accurate measurement: sensor with imported gas sensory unit, high precision, less zero shift, strong anti-poisoning.
2. Explosion-proof design: suitable for 1-area and 2-area dangerous site in firm.
3. Maintenance-free: sensor designed with digital module group, no need to zero setting and calibration.
4. Audible and visual alarm: gas detector if equipped with explosion-proof audible and visual alarm, sending audible & visual alarm on the spot.
5. Concentration display: gas detector if equipped with LCD, displaying the concentration on the spot.
Technical params of gasoline gas alarm
Gas detection: Gasoline gas
Detection principle: Catalytic combustion type
Detection range: 0-LEL
Power Supply Voltage: DC36V±15%
capacity factor: ＜1W
Communication: Two M-BUS
Signal output: A group signal of passive constant opening
Connection wires: RVS 2×2.5mm2
Accuracy: ±5%FS
Response time: T90＜30s (Catalytic combustion)
Materials: Cast aluminum
Explosion-proof connection screw thread: G3/4″ internal thread
Outline dimension: 190×130×75mm
Weight: 1.5Kg
IP degree: IP65
Working temperature: -40℃～70℃
Humidity range: 10%RH～95%RH
Pressure range: 86Kpa～106Kpa
Storage temperature: -25℃～55℃
Installment: Wall mounted, embracing tube type, passing tube type
