In industries such as petroleum, chemical, and mining, methane (CH4) is a representative flammable gas, and its accurate concentration monitoring is directly related to the operational safety of production facilities and the safety of personnel. Traditional catalytic combustion principle sensors are easily "poisoned" and fail under complex operating conditions by high concentrations of gas. Today, we recommend a revolutionary alternative—TX721-J1 infrared methane gas sensor.

TX721-J1 Infrared CH4 Gas Sensor

    Technological Breakthrough: Generational Advantages of Non-Dispersive Infrared (NDIR)

    TX721-J1 employs the non-dispersive infrared detection principle, determining methane concentration by measuring the absorption of specific wavelengths of infrared light by methane molecules. Compared to traditional technologies, it represents a qualitative leap:

    **Poison Resistance and Failure Resistance:** Because the sensor does not involve chemical reactions, it is completely immune to common "poisoning" gases such as hydrogen sulfide and silanes, significantly extending the effective service life of the equipment in harsh industrial environments.

    **Oxygen-Free Operation:** The infrared physical detection mechanism allows for accurate readings even in oxygen-deficient or oxygen-free confined spaces (such as sealed tanks and underground pipe corridors), filling a technological gap in catalytic combustion sensors.

    **Intrinsically Safe and Explosion-Proof Certification:** The product complies with GB3836 explosive atmosphere standards, possessing intrinsic safety protection, making it an ideal choice for petrochemical, coal mine, and other environments with extremely high explosion-proof requirements.

    In-situ replacement capability: Through precise circuit design, the TX721-J1 can directly replace existing catalytic combustion principle sensors, helping enterprises to achieve intelligent upgrades of monitoring systems at extremely low cost.

    Industrial Applications Across All Scenarios: Precise Prevention, Proactive Safety

    1. Oil and Gas Extraction and Transportation: In drilling platforms, refineries, and gas pipelines, even a small methane leak can trigger a disaster. The TX721-J1 features a full-range linear output of 0-100% LEL, coupled with a fast response time of ≤30s, providing the most timely logic trigger signal for automated shutdown systems.

    2. Mine Gas Monitoring: In underground coal mines, methane concentration fluctuations are extremely complex. This sensor incorporates a temperature compensation algorithm, maintaining excellent stability and resolution even in deep well environments with significant temperature differences, effectively preventing gas explosions.

    3. Industrial Process Monitoring and Smart Pipeline Corridors: In chemical production processes and urban underground integrated pipeline corridors, the TX721-J1 offers multiple output modes, including UART digital serial port and 0.4-2V analog voltage, facilitating integration into PLC or DCS control systems for digital inspection of the factory environment.

    TX721-J1 methane sensor represents not only an upgrade in detection principle but also a profound practical application of the concept of inherent industrial safety. In high-risk industrial production, choosing more stable and poison-resistant infrared technology adds a solid "firewall" to safety.

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