YJJ INIR2-ME5 CH4 Infrared Methane Gas Sensor 0-5%VOL for Industrial Safety Detection

Product Description:

YJJ INIR2-ME5 CH4 Infrared Methane Gas Sensor 0-5%VOL for Industrial Safety Detection

Features:

I. Basic Information

Model: INIR2-ME5 (Second-generation Integrated Infrared Sensor, replacing the older model INIR-ME5)

Detected Gas: Methane CH₄ (Flammable Gas, 0-5% VOL explosion lower limit range)

Detection Principle: NDIR Non-Dispersive Infrared Absorption Method, with built-in light source, dual optical paths (measurement + reference), signal processing circuit, no catalytic combustion, no poisoning risk

Explosion-proof Certification: ATEX / IECEx explosion-proof certification, can be directly used in hazardous explosive areas

II. Core Electrical and Performance Parameters

1. Power Consumption Table

Parameters Specification Values

Power supply voltage 3.2 ~ 5.25 VDC (typical 3.3V)

Average operating current 32mA (typical, total system power consumption < 100mW)

Peak current during shock Maximum 60mA

2. Range and Resolution

Three automatic switching ranges: 0~1% / 1~4% / 4~5% VOL CH₄

Highest resolution: 10ppm, precise identification of low concentration minor leakage

Factory calibration: standard 0~5% methane, zero point nitrogen gas calibration

3. Output Interface

Analog output: 0~2.5V linear voltage, 12-bit resolution, with temperature compensation

Digital UART serial port: default 38400 baud rate, supports CRC check, built-in full fault diagnosis

Built-in temperature sensor, automatic temperature drift compensation, stable measurement in both high and low temperature ranges

4. Environmental Adaptation Specifications

Operating temperature: -40℃ ~ +75℃ (wide temperature range, suitable for outdoor / industrial low-temperature environments)

Operating pressure: 80 ~ 120 kPa

Humidity: 0~99% RH (no condensation condition)

Response speed: T90 < 15s; recovery time < 30s

5. Physical Dimensions

Shape: Stainless steel cylindrical, Φ20mm × 16.7mm height

Pins: 5-pin straight plug standard socket, compatible with universal transducer base

Weight: Approximately 22g, stainless steel shell corrosion-resistant

6. Core Hardware Advantages

Infrared principle, not affected by siloxane, hydrogen sulfide, or organic vapor poisoning, with a much longer lifespan than catalytic bead sensors

Built-in complete signal conditioning, factory calibration, plug-and-play for the entire system, no need for customer secondary calibration

Automatic range switching, balancing minor leakage (10ppm) and high concentration explosion range detection

Real-time fault self-check: light source damage, light path blockage, circuit anomaly all reported via serial port

Low power consumption 3.3V power supply, compatible with portable detection instruments, battery-powered equipment

3. Main Application Scenarios (compatible with your SIAM WATER FLAME business)

1. Industrial Safety Detection (core)

Online monitoring of methane leakage in natural gas pipelines, gas boiler rooms, LNG filling stations

Waste gas concentration detection in coal mines, underground explosion-proof gas transmitters

Hydrogen production / fuel cell supporting workshops: methane leakage alarm in natural gas pipelines, reformer furnaces

2. Energy and New Energy

Concentration monitoring of biogas, biogas fermentation tanks (agricultural biogas projects)

Safe monitoring of combustible gas in raw material gas pre-treatment workshops of fuel cells

3. Commercial and Municipal

Fixed gas alarms in underground pipe galleries, urban gas wells, pump stations

Portable gas leak detectors, handheld explosion-proof detectors

4. Other Industries

Methane emission monitoring in landfill sites, sewage gas monitoring

Flammable gas explosion monitoring in petrochemical, chemical plant areas

Specifications: