YJJ 4H2-40000 CLE-0644-400 Electrochemical Hydrogen H2 Sensor for Hydrogen Leakage Detection

Product Description:

YJJ 4H2-40000 CLE-0644-400 Electrochemical Hydrogen H2 Sensor for Hydrogen Leakage Detection

Features:

I. Core Parameters (Standard Specifications) Table

Parameters Typical Value Explanation

Model 4H2-40000 / CLE-0644-400 Honeywell Classic Line 4 series

Detected Gas Hydrogen (H₂) High selectivity

Detection Principle Triple-electrode potentiometric electrolysis type Miniature fuel cell type, linear current output

Range 0 ~ 40000 ppm Reaches from 0 to 100% lower explosive limit (LEL)

Sensitivity 0.007 ± 0.002 μA/ppm Current is proportional to concentration

Baseline Current (20°C) < ±0.2 μA Zero point stable

Resolution 80 ppm Meet industrial safety warning requirements

Response Time (T90) ≤ 60 seconds Quick response

Linearity Linear Full range linear output

Long-term Stability < 2% signal value / month Drift small, reliability high

Operating Temperature -20°C ~ +50°C Wide temperature industrial grade

Operating Humidity 15% ~ 90% RH (no condensation)

Operating Pressure 91 ~ 111 kPa

Bias Voltage 0 mV No external polarization voltage required

Size Φ20.2 × 16.6 mm Standard 4-series industrial package (Φ20mm)

Weight Approximately 5 g

Service Life Airborne > 2 years

Warranty Period 12 months

Features Position-independent, anti-interference, wide temperature range, low cost

II. Core Advantages

Ultra-large range: 0~40000 ppm (100% LEL), capable of measuring from trace leakage to high concentration environments.

Industrial-grade stability: Wide temperature, wide humidity, low drift, suitable for harsh conditions.

Standard packaging: Φ20mm universal size, compatible with most portable/fixed detection instruments.

No bias voltage: 0 mV bias, simple circuit, low power consumption.

High cost-effectiveness: Honeywell quality, suitable for batch industrial applications.

III. Typical Applications

Portable/Fixed hydrogen gas detector

H₂ leakage alarm in chemical industry, pharmaceutical industry, electronics factory, power plant, battery factory

Safety monitoring for hydrogen storage and transportation, hydrogen filling stations, hydrogen fuel cell vehicles

H₂ concentration detection in coal mines, metallurgy, laboratory sealed spaces

Industrial safety and process monitoring

H₂ concentration control in electrolysis water production, chemical synthesis, hydrogen reaction

H₂ leakage warning in substations, UPS, energy storage stations (lead-acid / lithium batteries)

Online monitoring of hydrogen leakage in pipelines, valves, storage tanks

Environmental protection and special scenarios

H₂ monitoring in landfill sites, sewage treatment plants

H₂ safety control in aerospace, submarine cabins

H₂ analysis in welding shielding gas, metal heat treatment atmosphere

Specifications: