Product Description:

YJJ 4H2S-2000 052-0600-000 Electrochemical Hydrogen Sulfide Sensor 0-2000 ppm for Portable/Fixed Detectors

Features:

I. Core Parameters (20℃, 50% RH)

1. Measurement Performance

Measured Gas: Hydrogen Sulfide (H₂S)

Range: 0–2000 ppm

Maximum Overload: 4000 ppm (short-term withstandable)

Sensitivity: 0.09 ± 0.04 μA/ppm

T90 Response Time: ≤ 45 s

Baseline (Zero Point): < ±0.4 μA

Baseline Drift (-40 to 50℃): < 10 ppm

Resolution: 0.5 ppm

Linearity: Full-scale linearity (0–2000 ppm)

Bias Voltage: 0 mV (no bias circuit required)

2. Environmental and Electrical

Operating Temperature: -40 ℃ to +50 ℃

Humidity: 15%–95% RH (no condensation)

Pressure: 1 atm ±10%

Recommended Load Resistance: 10 Ω

Life: Approximately 2 years in air

Long-Term Stability: <2% Signal Value/Month

Storage Conditions: 10–30℃, Storage Period 6 Months

3. Physical and Safety

Size: Φ20.2 mm × Height 16.5 mm (Pin Length 12 mm)

Weight: Approximately 5 g

Shell: ABS, 3-pin (+, -, NC)

Explosion-proof: Current < 0.2 mA at 2000 ppm, Open-circuit Voltage 1.3 V

II. Typical Applications

1. Oil/Gas (High Concentration H₂S Key Scenarios)

Oil and Gas Field Wellheads, Gathering Stations, Desulfurization Facilities High-Concentration Leakage Monitoring (0–2000 ppm)

Well-Down, Enclosed Space H₂S Excess Alarm (Asphyxiation/Death Concentration)

Replace Traditional Low-Range (0–100 ppm) Sensors to Avoid High-Concentration Saturation Distortion

2. Chemicals / Coal Chemicals

Coking, Sulfur Recovery, Sewage Treatment Plants H₂S Online Monitoring

Reactor, Pipeline, Sewage Pond High Concentration Leakage Warning

3. Portable / Fixed Detectors

Four-Component / Single Gas Detector (H₂S + CO + O₂ + LEL)

Explosion-proof Fixed Detector, Portable Pump-In / Diffusion Alarm Instrument

Directly Replace Compatible Sensors from etc. 4 Series

4. Environmental / Municipal

Landfill, Sewage Treatment Plants, Sewer H₂S Malodor / Toxicity Monitoring

Specifications: