Product Introduction
I. Combustible gas alarm, long-term stable and maintenance-free product overview
The combustible gas alarm consists of a detector and an alarm controller, and is an industrial explosion-proof safety monitoring device. It detects the concentration of combustible gases such as natural gas, liquefied gas, methane, and propane in real time. When the gas concentration reaches the preset alarm threshold, it automatically triggers audible and visual alarms and can link with solenoid valves, exhaust fans, and other equipment to quickly eliminate explosion hazards. Widely used in chemical plants, gas stations, boiler rooms, restaurant kitchens, coating workshops, and tank farms, meeting safety production acceptance requirements.
II. Combustible gas alarm, long-term stable and maintenance-free product introduction
The complete system includes现场探测器withAlarm hostTwo major units. The detector is installed in locations where gas tends to accumulate, collecting gas concentration signals in real time and transmitting them to the alarm host via cable; the host centrally displays the concentration at each monitoring point and saves alarm records. The equipment uses an explosion-proof enclosure, adaptable to harsh working conditions such as dust and humidity. The fixed model provides 24-hour uninterrupted online monitoring; the portable model is used for on-site inspection and leak detection. The product has explosion-proof certification, supports engineering installation, prevents fire and explosion accidents caused by combustible gas leaks, and ensures the safety of plant equipment and personnel.
III. Combustible gas alarm, long-term stable and maintenance-free features
- High-sensitivity catalytic combustion sensor, fast response, accurate combustible gas concentration detection
- Two-level alarm settings, pre-alarm + high alarm, audible and visual alerts simultaneously when exceeding limits
- Explosion-proof structural design, IP65 protection, waterproof and dustproof, suitable for complex industrial environments
- Digital screen displays real-time concentration values, intuitive readings, supports multi-point centralized monitoring
- Supports linkage with exhaust ventilation and gas solenoid valves, automatically cutting off gas source and starting ventilation
- Strong signal anti-interference capability, effectively reducing false alarm and missed alarm probability
- Alarm data storage and recording, convenient for safety inspections and project acceptance review
- Easy installation and commissioning, low subsequent maintenance workload, long sensor service life
- Multiple gas options: methane, liquefied petroleum gas, propane, ethanol, etc.
- 4-20mA/RS485 signal output, can be connected to PLC, DCS industrial control systems
IV. Combustible gas alarm, long-term stable and maintenance-free technical parameters
Table
| Item | Parameter |
|---|---|
| Detection gas | Combustible gases such as methane, liquefied petroleum gas, propane, ethanol, etc. |
| Detection principle | Catalytic combustion type sensor |
| Measurement Range | 0～100%LEL |
| 分辨率 | 0.1%LEL |
| Response time | ≤30s |
| Alarm method | Audible and visual alarm, two-level adjustable alarm |
| Explosion-proof grade | Ex d IIC T6 Gb |
| 防护等级 | IP65 |
| 工作电压 | Detector DC24V; alarm host AC220V |
| 信号输出 | 4-20mA / RS485 |
| 工作温度 | -20℃～+50℃ |
| Relative humidity | 10%～95% RH (non-condensing) |
| Transmission distance | ≤1000m (shielded cable) |
| 安装方式 | Wall-mounted fixed installation |
Main Application Areas
- Oil and Gas Industry — Detects combustible gas leaks in refineries, pipelines, and storage facilities to prevent accidents and ensure worker safety.
- Chemical Plants — Monitors flammable gas levels in chemical processing areas, alerting to leaks and preventing hazardous situations.
- Wastewater Treatment — Detects methane and other combustible gases in wastewater treatment facilities to avoid explosion risks.
- Manufacturing — Provides continuous gas monitoring in manufacturing plants where flammable solvents or gases are used.
- Power Generation — Monitors combustible gases in power plants to ensure safe operation and early leak detection.
Keywords：combustible gas alarm, gas detector, industrial gas alarm, flammable gas sensor, gas leak detector, SKA-NE-301EX, maintenance-free gas alarm, long-term stable gas detector
