汽油在常溫下為無色至淡黃色的易流動液體，很難溶解于水，易燃，餾程為30℃至220℃，空氣中含量為74～123克/立方米時遇火爆炸，建議在汽油場所配置汽油氣體檢測（探測）報警器，防止爆炸、火災(zāi)事故的發(fā)生。
汽油氣體報警器(Gasoline Gas Alarm)由汽油氣體氣體檢測測器(Gasoline gas detector)與汽油氣體報警控制器(Gasoline gas controller)構(gòu)成，廣泛應(yīng)用于石油、燃?xì)?、化工、油庫等存在有毒氣體的石油化工行業(yè)，用以檢測室內(nèi)外危險場所的泄漏情況，是保證和人身安全的重要儀器。
當(dāng)被測場所存在汽油氣體時，氣體檢測器將氣信號轉(zhuǎn)換成電壓信號或電流信號傳送到氣體報警控制器，儀器顯示出可燃?xì)怏w爆炸下限的百分比濃度值。當(dāng)氣體濃度超過報警設(shè)定值時發(fā)生聲光報警信號提示，值班人員及時采取安全措施，避免燃爆事故發(fā)生。
汽油氣體檢測（探測）報警器產(chǎn)品特點(diǎn)：
◆ 測量準(zhǔn)確：傳感器采用進(jìn)口氣體敏感元件，精度高，零點(diǎn)漂移小，抗中毒性能好。
◆ 防爆設(shè)計：可用于工廠條件的1、2區(qū)危險場合。
◆ 維修方便：傳感器采用數(shù)字化模組設(shè)計，現(xiàn)場更換時無需校零、標(biāo)定。
◆ 聲光報警：氣體檢測器可選配專用的防爆聲光報警器，實(shí)現(xiàn)現(xiàn)場聲光報警。
◆ 濃度顯示：氣體檢測器可選配液晶濃度顯示，現(xiàn)場實(shí)時顯示濃度。
汽油氣體檢測（探測）報警器技術(shù)參數(shù)
| 檢測氣體 | 汽油氣體 | 檢測原理 | 催化燃燒式 |
| 檢測范圍 | 0-99%LEL | 供電電源 | DC36V±15% |
| 功率 | ＜1W | 通訊方式 | M-BUS 兩總線 |
| 信號輸出 | 一組無源常開信號 | 連接線纜 | RVS 2×2.5mm2 |
| 準(zhǔn) 確 度 | ±5%FS | 響應(yīng)時間 | 催化燃燒式 T90＜30s |
| 材 料 | 鑄鋁 | 防爆鏈接螺紋 | G3/4″內(nèi)螺紋 |
| 防爆標(biāo)志 | Exd IIC T6 Gb | IP等級 | IP65 |
| 工作溫度 | -40℃～70℃ | 濕度范圍 | 10%RH～95%RH |
| 壓力范圍 | 86Kpa～106Kpa | 存儲溫度 | -25℃～55℃ |
| 外形尺寸 | 190×130×75mm | 重 量 | 1.5kg |
| 安裝方式 | 貼壁式、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: 0-99%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
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