In industries such as petrochemicals, natural gas, coal mining, and city gas, methane, as a major component, is both a valuable energy source and a potential "hidden bomb." Its colorless and odorless nature makes it highly susceptible to causing serious safety accidents once a leak reaches its explosive limits. Therefore, real-time, accurate, and reliable monitoring of methane gas is paramount to ensuring the safety of enterprise life and property and promoting environmental sustainability. Among numerous monitoring technologies, infrared (NDIR) methane sensors are becoming a star product in the field of industrial safety monitoring due to their superior performance, making them the ideal choice for building a smart security system.

    Why Choose Infrared Technology? Limitations and Innovations of Traditional Sensors

    While traditional catalytic combustion sensors were widely used in the past, their inherent defects are becoming increasingly apparent in harsh industrial environments:

    **Poisoning and Failure:** In environments containing compounds such as silicon, sulfur, and lead, the sensor catalyst quickly becomes poisoned, resulting in permanent failure and creating monitoring blind spots.

    **Oxygen-Required Environments:** Must operate in an oxygen-rich environment, making it unable to detect methane leaks in oxygen-deficient environments (such as confined spaces or inert gas-protected environments).

    **Accuracy and Drift:** Susceptible to environmental temperature and humidity, exhibiting zero-point drift, requiring frequent calibration, and incurring high maintenance costs.

    Infrared methane sensors, based on the principle of non-dispersive infrared absorption, completely overcome these pain points. They utilize the absorption characteristics of methane gas to infrared light of a specific wavelength to detect concentration. This physical measurement method brings revolutionary advantages:

    High selectivity & anti-poisoning: Responds only to methane molecules, virtually unaffected by other gases, completely avoiding chemical poisoning problems and extending its lifespan.

    Oxygen-free: Operates stably in oxygen-free or inert gas environments, broadening its application scenarios.

    Excellent stability: No chemical combustion process, minimally affected by environmental factors, exhibiting excellent long-term stability, significantly reducing calibration and maintenance frequency.

    High accuracy and fast response: Achieves precise detection at the ppm level and responds rapidly to concentration changes.

    Featured Product Recommendation: TX721-J1 Infrared Methane Sensor

    Among numerous infrared sensor products, we highly recommend TX721-J1 intelligent infrared methane sensor. Combining cutting-edge technology with industrial-grade design, it is the ideal choice for achieving intrinsic safety upgrades.

TX721-J1 Infrared CH4 Gas Sensor

    Key Product Highlights:

    1. Superior Detection Performance

    Wide Measuring Range: Offers multiple measuring ranges from 0-5% VOL~0-100% LEL, meeting the needs of all scenarios from trace leak early warning to high-concentration monitoring.

    High Precision and Low Drift: Employs advanced dual-channel compensation technology, ensuring accurate temperature and humidity compensation.

    Rapid Response: T90 response time <30 seconds, enabling immediate detection of leak signals and saving valuable time for emergency response.

    2. Robust Industrial-Grade Design

    High Protection Rating: IP54 protection rating, dustproof and waterproof, capable of withstanding various harsh industrial environments.

    Explosion-Proof Certification: Certified by the national Exib ⅡB T4 Gb explosion-proof standard, safe for use in Zone 1 and Zone 2 areas with explosive hazards.

   3.Intelligent and Convenient

    Digital Output: Supports multiple signal outputs including UART and 0.4~2.0V, easily connecting to PLC, DCS, GDS, and other control systems.

    Self-Diagnostic Function: Real-time self-checks the status of the light source, optical path, and circuit; faults are reported immediately, eliminating "silent" equipment.

    Long Lifespan & Low Maintenance: Core components are designed for a lifespan of up to 5 years, effectively reducing your total cost of ownership.

    Typical Application Scenarios

    Petrochemical & Natural Gas: 24/7 uninterrupted monitoring of key locations such as refineries, tank farms, pipeline valves, and pressure regulating stations.

    Coal Mining: Monitoring of methane (mainly gas) concentration in underground working faces, roadways, and drainage pipelines.

    City Gas: Installed in gas stations, underground pipe corridors, commercial kitchens, and residential building pressure regulating boxes to prevent gas leaks.

    Landfill & Wastewater Treatment: Monitoring methane concentration in landfill gas and biogas, balancing safety and energy recovery.

    Safety is the eternal cornerstone of industrial development. In today's rapidly evolving technological landscape, replacing outdated technologies with more advanced and reliable monitoring methods is an inevitable choice for enterprises to fulfill their social responsibility and achieve high-quality development. Infrared methane sensors are undoubtedly the technological benchmark in this field.

    Contact us now to equip your safety production defenses with the most sensitive "sensory organs"!