Tunnel LED Access Control System
Specialty gas detector for gas de
Product Overview
Solid-state gas detector(A Fixed Gas Detector) is a safety device installed at specific locations for long periods, designed to continuously monitor gas concentrations and environmental parameters in the surroundings. It features high-precision detection, stable transmission, intelligent alarm, and explosion-proof design, and is widely used in industries such as petrochemicals, metallurgy, gas, and environmental protection. It effectively prevents accidents caused by gas leaks, such as explosions and poisoning, ensuring personnel safety and stable equipment operation.
I. Basic Parameters
外形尺寸: Dimension Size：144mm×190mm×91mm
WeightApproximately 1895g
Output Signal485 Output/TTL, RS485 (Temperature and Humidity/Dust Sensor)
Alarm FunctionSound and light alarm lamp
Temperature Range-40°C to +80°C (standard models); -40°C to 60°C (dust/humidity sensors)
Humidity RangeBelow 99% RH (no condensation); 0~100% RH (dust/humidity sensor)
Protection Level：
Gas Detector: Exdb ICT6 Gb; Ex tb IIIC T80℃ Db (Explosion-proof Certification)
Dust Sensor: IP66
Humidity and Temperature Sensor: IP66
SpecsTwo-in-one/Three-in-one/Four-in-one/Six-in-one
Section II: Product Types and Models
Gas Detector Series
| Model | Gas Detection | Sensor Type | Range | Key Features |
|---|---|---|---|---|
| DF200ZCH-CH4 | CH4 | Catalytic Combustion Sensor | 0—100%LEL | Applicable for gas pipeline, mine, and other flammable gas monitoring |
| DF200ZDH-CO | CO | Electrochemical Sensor | 0-1000PPM | Applicable for gas pipeline, mine, and other flammable gas monitoring |
| DF200ZDH-H2S | H2S | Electrochemical Sensor | 0-100PPM | Suitable for gas pipeline, mines, and other flammable gas monitoring |
| DF200ZDH-O2 | O2 | Electrochemical sensor | 0-30%VOL | Suitable for gas pipeline, mine, and other flammable gas monitoring |
| DF200ZHW-CO2 | CO2 | Infrared Sensor | 0-5000PPM | Suitable for gas pipeline, mine, and other flammable gas monitoring applications |
| DF200ZHW-SO2 | SO2 | Infrared sensor | 0-100PPM | Suitable for gas pipeline, mine, and other flammable gas monitoring applications |
| DF200ZDH-NO2 | NO2 | Electrochemical Sensor | 0-20PPM | Suitable for gas pipeline, mines, and other flammable gas monitoring |
| DF200ZDH-NH3 | NH3 | Electrochemical Sensor | 0-100PPM | Suitable for gas pipeline, mine, and other flammable gas monitoring |
2. Environmental Parameter Sensor Series
| Model | Inspection Parameters | Range | Core Features |
|---|---|---|---|
| Fixed dust sensor | Dust concentration | 0-1000μg/m³ | Response time: 1S, suitable for industrial dust monitoring |
| Fixed-temperature and humidity sensor | Temperature/Humidity | Temperature: -40-100℃ Humidity: 0-100% RH | Dual parameter monitoring, IP66 protection, suitable for storage, laboratories |
III. Core Features and Technical Advantages
High-precision detection
Utilizing catalytic combustion, electrochemical, and infrared sensor technologies to ensure accurate and reliable data.
DF200ZCH-CH4 detection error ≤ ±3%LEL, DF200ZHW-CO2 infrared sensor has strong anti-interference capability against cross-talk.
Stable Transmission and Compatibility
Supports 485/TTL output, allowing for seamless integration with PLC, DCS, and other control systems.
Humidity and temperature/dust sensors utilize RS485 standard protocol for easy integration.
Smart Alarm and Interconnection
An audio-visual alarm is triggered when the concentration exceeds the standard, and relay signals are output to link up exhaust fans, valve cutoffs, and other equipment.
The DF200ZDH-CO detector can be set with two-level alarm thresholds (pre-alarm/high alarm).
Explosion-proof and environmental-resistant design
Explosion-proof housing (Exdb ICT6 Gb) passes national explosion-proof certification and is suitable for hazardous areas in Zones 1 and 2.
Wide operating temperature range (-40℃ to +80℃), suitable for extreme environments.
Composite Testing & Scalability
Supports 2-in-1 to 6-in-1 gas composite detection, reducing the cost of multi-gas monitoring.
Six-in-one detector can simultaneously monitorCH4、CO、O2、H2SWait for gas.
