YJJ 3CO-4000CT 051‑3400‑100 Electrochemical Carbon Monoxide CO Sensor Flue Gas/Boiler Emissions

Product Description:

YJJ 3CO-4000CT 0-4000PPM Electrochemical Carbon Monoxide (CO) Sensor for Flue Gas / Boiler Emissions

Features:

I. Core Parameters (20℃, standard atmospheric pressure)

1. Detection Performance

Range: 0–4000 ppm CO

Maximum Overload: 20000 ppm (short-term)

Sensitivity: 0.030 ± 0.006 μA/ppm

Resolution: 1 ppm

Linearity: Full range of 0–4000 ppm

Response Time T90: ≤ 30 s

Zero Signal: -3 ~ +10 ppm

Baseline Drift (-20℃ to 50℃): < 20 ppm

Bias Voltage: 0 mV (no polarization required)

2. Environment and Lifespan

Operating Temperature: -20℃ to +50℃

Humidity: 15%–90% RH (no condensation)

Pressure: ±0.1 atm

Expected Lifespan: Approximately 3 years in air

Long-Term Stability: < 2% signal/month

Storage Conditions: 10℃–30℃, can be stored unopened for 6 months

Warranty: 12 months

3. Physical and Electrical

Size: Φ32 mm × Height 16 mm (3 Series Standard Packaging)

Shell: ABS + Metal Ventilated Film

Maximum Open Circuit Voltage: 1.3 V

Maximum Current at 20000 ppm CO: < 1 mA

Maximum Short Circuit Current: < 1.0 A

II. Key Features

High Range Suitable for Industrial Emissions: 0–4000 ppm, covers high concentration CO scenarios in boilers / flue gas, with strong overload capacity.

Wide Temperature Stability: Small baseline drift (-20℃ to 50℃), suitable for outdoor / high-temperature industrial environments.

No Bias Voltage, Easy Integration: 0 mV bias voltage, simplifies circuits, suitable for portable / fixed instruments.

Long Lifespan and Low Maintenance: 3-year lifespan, good stability, reduces replacement costs.

Pin Compatibility: Directly replace CITY 3FF/3 series, no board modification required.

III. Main Applications

1. Emission Monitoring of Smoke / Boiler (Core)

Industrial boilers, chimneys, burner exhaust CO detection (environmental compliance)

Incinerators, heat treatment furnaces, kiln combustion efficiency and toxic gas monitoring

2. Industrial Process Safety

Metallurgy, chemical industry, coking workshop CO leakage monitoring (to prevent poisoning)

Coal mines, tunnels, underground pipe galleries CO concentration warning

3. Gas Analysis Instrument OEM

Portable smoke analyzers, handheld CO detectors core sensing element

Fixed industrial gas detectors, multi-parameter monitors (such as GX-3R four-in-one) CO channel replacement part

4. Emergency and Environmental Protection

CO Search and Rescue at Fire Scenes (high concentration CO in combustion products)

Anaerobic decomposition CO monitoring in landfill sites, sewage treatment plants

Specifications: