YJJ AFBR-S6PY2626 Dual-Channel Thermoelectric Infrared Sensor CH4/Carbon Hydrogen Gas Specialized

Product Description:

YJJ AFBR-S6PY2626 Dual-Channel Thermoelectric Infrared Sensor for CH4 / Carbon Hydrogen Gas Specialized Use

Features:

I. Core Parameters (Typical Values)

1. Channels and Filters

Channel 1 (Reference): 3.91 μm / 90 nm (absorbs no CH₄)

Channel 2 (Measurement): 3.30 μm / 160 nm (CH₄ characteristic absorption peak)

2. Electrical and Performance

Output: Analog voltage (built-in CMOS amplifier, single power supply)

Signal-to-Noise Ratio SNR: ≈10,000 (high sensitivity)

Operating Frequency: 1–40 Hz (commonly 10–15 Hz)

Response Speed: Fast, suitable for dynamic gas measurement

Power Supply: 2.7–5.5 V (typical 3.3 V/5 V)

Operating Temperature: -20 ℃ ~ +70 ℃

Life Span: Long life, no consumables, resistant to vibration and moisture

Certification: RoHS compliant

3. Detection Targets

Main: Methane CH₄ (natural gas, biogas)

Compatible: Other hydrocarbons (propane, butane, VOCs)

II. Working Principle (NDIR Non-Dispersive Infrared)

Infrared light source emits broadband infrared light;

Gas Absorption: CH₄ has strong absorption at 3.3 μm, while the reference channel (3.91 μm) does not absorb;

Dual-channel Differential: The measurement channel signal decays with CH₄ concentration, and the reference channel compensates for light source drift, temperature, and interference;

Thermosensitive Element converts infrared energy changes into voltage signals, output proportional to gas concentration;

Film Process + Built-in High-Resistance Amplifier, high signal-to-noise ratio, low drift, strong stability.

III. Main Applications

1. Methane / Natural Gas Detection (Most Common)

Household / Industrial Gas Alarm (CH₄ Leakage)

Natural Gas Pipeline, Valve, Station Inspection

Coal Mine Methane (CH₄) Monitoring Alarm

Biogas Pits, Biogas Equipment Concentration Monitoring

2. Industrial Hydrocarbon Gas Detection

Petrochemical, Refinery, Chemical Zone VOC / Hydrocarbons Monitoring

Gas Station, Oil Depot Gas Detection

Industrial Process Gas Analysis

3. Alternative to Traditional Sensors

Alternative to Catalytic Combustion (Easy poisoning, short lifespan)

Alternative to Electrochemical (Short lifespan, specific gas only)

Suitable for explosion-proof, long life, maintenance-free scenarios

4. Others

Environmental Monitoring, CH₄ Emission from Landfills

Agricultural Greenhouse Gas Monitoring

Specifications: