Industrial Safety Monitoring
- Detecting hydrogen leaks in petrochemical plants, refineries, and metallurgical facilities.
- Monitoring H₂ concentrations in coal mines and fire - fighting scenarios to prevent explosions.
Environmental & Equipment Control
- Used in portable or fixed detection devices for hydrogen - related environmental monitoring.
- Suitable for hydrogen - powered vehicle systems, fuel cell stations, and laboratory gas safety checks.
Wide - Range Sensing
- Ideal for applications requiring high - range H₂ detection (0–40,000 ppm), including industrial process control and gas storage areas.

Product Features:

Ultra - Wide Measurement Range
- 0–40,000 ppm (0–100% LEL), enabling detection from low - level leaks to high - concentration environments.
High Sensitivity & Resolution
- Sensitivity: 0.007 ± 0.002 μA/ppm; resolution: 80 ppm, ensuring precise H₂ concentration monitoring.
Rapid Response
- Response time (T90): ≤60 seconds, allowing immediate alerts for sudden H₂ leaks.
Stable Performance
- Baseline drift: Equivalent to 0–20 ppm; long - term output drift: <2% signal/month, ensuring consistent reliability.
Robust Environmental Adaptability
- Operating temperature: -20°C–50°C; humidity: 15%–90% rh (non - condensing); pressure: 90–110 kPa.
Three - Electrode Design
- Enhances anti - interference capability and measurement accuracy in complex gas environments.
Long Service Life
- Expected lifespan: 2 years in clean air; storage life: 6 months (original packaging), reducing replacement costs.
Compact & Versatile
- 4 - series size (≈5g), compatible with both portable and fixed - mounted detection equipment.

Key Technical Advantages:

Low Cross - Sensitivity
- Minimal interference from gases like H₂S, SO₂, and Cl₂ (refer to cross - sensitivity data for details).
Zero Bias Voltage
- Requires 0 mV bias voltage, simplifying circuit design for sensor integration.
Intrinsic Safety
- Safe for use in hazardous areas with explosive gas mixtures (consult safety certifications for compliance).

Product Code	2112b0644400
Measuring Range	0 - 40,000 ppm H2 (0 - 100% LEL value)
Operating Principle	Three - electrode electrochemical
Gas Sensitivity	7 ± 2 nA/ppm
Response Time (T90)	≤ 60 s (typical 35 s)
Repeatability	< ± 2% signal
Linearity	Linear
Long - term Output Drift	< 2% signal/month
Resolution	70 ppm
Recommended Load	5 - 35 Ω
Bias Voltage	0 mV
Operating Temperature Range	- 30℃ - 50℃
Operating Humidity	15% rh - 90% rh (non - condensing)
Operating Pressure Range	800 - 1200 mbar
Recommended Storage Temperature	0℃ - + 20℃ (in sealed package)
Expected Operating Life	24 months in air
Storage Life	6 months in original package
Standard Warranty	18 months from the date of delivery
Cross - sensitivity (Carbon Monoxide 50 ppm)	170 ppm H2 equivalent

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