CH4 methane sensor SJH-5BUL

NDIRfor leak detectionmonitoring

SJH-5BUL methane sensor is an ultra low power and dual beam gas sensor based on Non-Dispersive Infra-Red (NDIR) technology.  Adopting ultra low power LED emitter, Cubic mature technology platform and standard industrial 4-series design, SJH-5BUL sensor has features of ultra low power consumption, super fast response time, supiror signal stability, high precision, and long lifetime, etc.  SJH-5BUL could measure CH4 up to 100%LEL, are designed for hazardous areas that require for battery-powered portable or transportable detector, outdoor solar-powered IoT device and other low-power based wireless monitors. Suitable applications include Oil & Gas industry, LNG transportation, gas leak detection, underground utility vaults, sewers, industrial plants, etc. Features • Dual-beam NDIR technology • Average working current less than 1mA • Superior fast T90 time <15s • Linearization and factory calibration for accurate digital output • Matrix calibration to ensure high accuracy over full-temperature • Embedded temperature and humidity compensation • Long lifespan over 10 years • Ex-proof grade Ex ia II C T4 Ga Specifications • Principle: NDIR • Measurement Gas: CH4 • Model: SJH-5BUL • Measurement Range: 0-100%LEL (0~5%Vol) • Accuracy: 0~2.50%vol (0~50% LEL): ±0.15%vol (±3% LEL); 2.50%vol~5.00%vol (50%~100% LEL): ±0.25%vol (±5% LEL) • Resolution: 0.01%Vol • Response Time: T90<15s • Output: UART_TTL (3V) • Working Condition: -40 ~ 70℃, 0~98%RH (non-condensing) • Storage Condition: -40 ~ 70℃, 0~98%RH (non-condensing) • Power Supply: 3.3~5.5V DC • Working Current: 0.8mA (@25℃, 3.3V DC) • Dimension: Dia20mm*H16.6mm