Solid-state gas detector
Specialty gas detector for gas detection
Sensor Type: Catalytic Combustion Sensor
Tested Gases:CH₄
Range: 0-100% LEL
Gas-specific Detector for瓦斯CH₄Inspection
I. Product Positioning
Specialized for coal mines, gas pipelines, petrochemical industries, and other gas (CH₄High-risk leakage scenario design with explosion-proof certification, high sensitivity, and strong anti-interference ability, capable of real-time monitoring the environment.CH₄Concentration, explosion prevention, and safety for personnel and equipment.
II. Core Models and Parameters
| Model | DF200ZCH-CH4 |
|---|---|
| Test Gas | CH₄ |
| Sensor Type | Catalytic Combustion Sensor |
| Range | 0-100% LEL (Lower Explosive Limit) |
| Accuracy | ±3% FS (Full Scale Error) |
| Response Time | ≤30 seconds (T90) |
| Output Signal | 485 Output/TTL (compatible with PLC, DCS) |
| Alarm method | Audio-Visual Alarm (Volume ≥ 85dB) + Relay Output |
| Intrinsically Safe Rating | Exdb ICT6 Gb (Intrinsically Safe, suitable for 1 & 2 hazardous areas) |
| Operating Temperature | -40℃～+80℃ |
| Working Humidity | ≤99% RH (no condensation) |
| Protection Class | IP66 (Dustproof and Waterproof) |
| Dimensions | 144mm×190mm×91mm |
| Weight | Approximately 1895g |
III. Core Features and Technical Advantages
High precisionCH₄Inspection
Utilizing catalytic combustion sensors, forCH₄High selectivity and linear response, avoiding cross-gas interference (such as)H₂Ethanol.
The range covers 0-100% LEL, suitable for gas concentration alerts (Level 1 Alarm: 20% LEL; Level 2 Alarm: 40% LEL).
Explosion-proof and safety design
Certified for national explosion-proof standards (Exdb ICT6 Gb), the housing is made of aluminum alloy die casting, featuring an effective explosion-proof structure that prevents internal electrical sparks from igniting external gases.
Relay output can be linked to exhaust system and emergency shutdown valve, achieving automatic safety control.
Environmental adaptability
Operating temperature range: -40℃ to +80℃, suitable for extreme cold (such as northern coal mines) or high-temperature environments (such as oil refineries).
IP66 protection rating, dust and water resistant, suitable for humid, dusty underground or chemical environments.
Smart Alarm and Data Transmission
The sound and light alarm module is independently designed, capable of triggering an alarm via backup power even in the event of power failure.
Supports RS485/Modbus protocols, compatible with monitoring platforms for remote centralized management.
