Fixed Combustible Gas Detector
Our fixed gas detector is a high-performance industrial solution designed for continuous, real-time monitoring of combustible and toxic gases in professional work environments. Available in both intelligent bus systems and branch line systems, it can be integrated with compatible controllers to create a complete fixed gas alarm detection system, ideal for factories, chemical plants, warehouses, and other industrial facilities.
This fixed multi gas detector monitors target gases—including methane (CH₄), propane (C₃H₈), hydrogen sulfide (H₂S), carbon monoxide (CO), and other toxic or combustible gases—providing accurate, real-time concentration readings directly on-site. When gas levels exceed preset thresholds, the system immediately triggers audible and visual alarms, ensuring fast response and workplace safety.
Enterprise clients can monitor the operational status of each fixed toxic gas detector via the controller, including normal operation, fault conditions, and alarm events. Critical settings, such as zero-point calibration, gas concentration calibration, and high/low alarm limits, can be easily configured through the controller or an infrared remote.
Designed and certified according to national safety standards, this fixed combustible gas detector and gas detectors 4 gases solution delivers high precision, stability, and low-maintenance operation. Its modular design supports customized configurations for industrial clients seeking reliable fixed H₂S gas detectors, fixed gas detectors for CH₄ or C₃H₈, or fully integrated multi-gas detection systems.
With intelligent monitoring, remote configuration, and seamless integration with safety management systems, this fixed gas detector for home/industrial applications ensures maximum safety and operational efficiency, making it the preferred choice for B2B industrial clients worldwide.
Gas Detectors Description
Fixed Gas Detector Features
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Compatible with Bus and 4-20mA Systems – Supports both intelligent bus systems and 4-20mA branch line systems, providing flexible integration and easy expansion for industrial fixed gas detector networks.
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Serviceable Sensor Modules – Modular sensor design allows easy maintenance and replacement, reducing operational costs and downtime for industrial applications.
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Infrared Remote Control – Configure and calibrate detectors on-site without opening the device, enhancing convenience and safety during maintenance.
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Digital Display – Real-time gas concentration readings and device status are clearly shown on the digital tube display for immediate assessment.
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Built-in Control Output – Supports direct linkage to on-site alarms, fans, or valves, enabling automated safety response when gas levels exceed thresholds.
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Dual Wiring Structure – Simplifies field installation and wiring, reducing engineering complexity and installation time.
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Integrated Temperature Monitoring – Ensures accurate and reliable gas detection even under varying environmental temperatures, maintaining performance in harsh industrial conditions.
Combustible Gas Detector-Detectable Gas Types
Our fixed gas detector can be configured with multiple sensor modules to detect a wide range of toxic and combustible gases, making it suitable for diverse industrial applications. The detectors can be customized as fixed multi gas detectors to meet specific site safety requirements.
| Gas Type | Chemical Formula | Category | Detection Range | Typical Industrial Applications |
|---|---|---|---|---|
| Methane | CH₄ | Combustible | 0-100% LEL | Natural gas pipelines, chemical plants, refineries |
| Propane | C₃H₈ | Combustible | 0-100% LEL | LPG storage, fuel stations, industrial kitchens |
| Hydrogen Sulfide | H₂S | Toxic | 0-100 ppm | Petroleum processing, wastewater treatment, chemical manufacturing |
| Carbon Monoxide | CO | Toxic | 0-500 ppm | Boiler rooms, underground garages, industrial plants |
| Oxygen | O₂ | Oxygen deficiency | 0-25% | Confined spaces, storage tanks, chemical facilities |
| Ammonia | NH₃ | Toxic | 0-100 ppm | Cold storage, refrigeration systems, food processing plants |
| Optional Multi-Gas | – | Combustible / Toxic | Customized | Industrial workshops, laboratories, hazardous material storage |
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Supports simultaneous detection of multiple gases with a single fixed multi gas detector system.
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Modular sensor design allows flexible selection and replacement according to site-specific requirements.
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Accurate and reliable measurements for safety compliance and regulatory reporting.
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Ideal for integration with industrial safety management systems, enabling real-time monitoring, alerts, and remote control.
Gas Detectors Parameter
| Parameter | Specification |
|---|---|
| Detectable Gases | Methane (CH₄), Propane (C₃H₈), and other combustible or toxic gases |
| Detection Principle | Catalytic combustion, Infrared, Electrochemical, Semiconductor, or PID (Photoionization Detector) |
| Sampling Method | Diffusion |
| Measurement Range | 3–100% LEL (adjustable for other gases) |
| Default Alarm Thresholds | Low: 25% LEL, High: 50% LEL |
| Alarm Accuracy | ±3% F.S |
| Response Time | Combustible gases: ≤30s (T90), Toxic gases: ≤60s (T90) |
| Power Consumption | ≤3W (DC 24V) |
| Protection Rating | IP66 (dustproof & waterproof) |
| Explosion-Proof Rating | ExdⅡCT6Gb |
| Communication Method | S-BUS intelligent bus and 4-20mA branch line systems |
| External Control Output | 1 passive switch signal, contact capacity: 1A/AC220V or 1A/DC24V |
| Sensor Lifespan | 3 years (typical for catalytic sensors) |
| Storage Temperature | -25℃ to +55℃ |
| Operating Environment | Temperature: -40℃ to +70℃, Relative Humidity: ≤93% RH, Pressure: 86–106 kPa |
| Explosion-Proof Cable Entry | Conductor diameter: 9–10 mm |
| Thread Size | G3/4 |
| Weight | Approx. 880 g |
| Dimensions | 156.5 × 150.5 × 76.5 mm |
Instrava OEM/ODM
Tailored Sourcing & Customization: Getting You the Exact Product You Need
As your trusted supplier and sourcing partner, we bridge the gap between your custom requirements and China’s vast manufacturing capabilities.
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1. What gases can your fixed gas detector monitor in industrial environments?
Our fixed gas detectors can monitor a wide range of gases, including combustible gases such as methane (CH₄) and propane (C₃H₈), as well as toxic gases like hydrogen sulfide (H₂S) and carbon monoxide (CO). We also offer fixed multi gas detectors capable of detecting up to 4 gases simultaneously, making them ideal for factories, chemical plants, warehouses, and other industrial sites.
2. How does the fixed gas detector alert staff during a gas leak?
The fixed toxic gas detector is integrated with controllers that provide real-time on-site monitoring. When gas concentrations exceed preset thresholds, the system triggers audible and visual alarms. Additionally, our smart app can send instant SMS and phone notifications, ensuring rapid response and safety compliance for B2B industrial clients.
3. Can the fixed gas detector be integrated with existing industrial control systems?
Yes, our fixed combustible gas detectors support S-BUS intelligent bus and 4-20mA branch line systems, as well as Modbus and other industrial communication protocols. This allows seamless integration with SCADA systems, remote monitoring platforms, and enterprise safety management networks.
4. What maintenance is required for a fixed multi gas detector?
Our fixed multi gas detectors feature modular, serviceable sensors, which can be easily replaced or calibrated using an infrared remote or controller without opening the device. Typical sensor lifespan is 3 years (for catalytic sensors), reducing downtime and maintenance costs for industrial clients.
5. Can the detection thresholds and alarm settings be customized?
Absolutely. Each fixed gas detector allows configuration of high and low alarm thresholds, zero-point calibration, and concentration calibration. This flexibility ensures the detectors meet specific safety requirements for different industrial applications, including fixed H₂S gas detectors for petroleum processing or gas detectors 4 gases for multi-gas monitoring scenarios.
6. Are these fixed gas detectors suitable for harsh industrial environments?
Yes. Our fixed toxic and combustible gas detectors are built to industrial standards with IP66 protection and ExdⅡCT6Gb explosion-proof ratings. They operate reliably in temperatures ranging from -40℃ to +70℃, with high humidity tolerance (≤93% RH), making them ideal for factories, chemical plants, refineries, and other challenging B2B industrial environments.
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