YJJ CO 3E 300-7CTL 0248-034-30079 0-500PPM An Oxygen Sensor for Exhaust Ventilation Linkage System

Product Description:

YJJ CO 3E 300-7CTL 0248-034-30079 0-500PPM An Oxygen Sensor for Exhaust Ventilation Linkage System

Features:

I. Basic Product Information

Model: CO 3E 300 (MINI Miniature Three-Electrode Electrochemical CO Sensor)

Core Principle: Three-electrode amperometric electrochemical cell, specifically for detecting toxic gas carbon monoxide CO 

Application: Industrial high-precision, long-life CO detection core consumable, compatible with portable detectors and fixed gas transmitters

II. Core Electrical Measurement Parameters Table

Parameter item Standard specification

Detected gas CO - Carbon Monoxide

Measurement range 0 - 500 ppm

Sensitivity 70 nA/ppm ± 20 nA/ppm (standard working condition at 20℃)

Zero current < 150 nA in clean air

Resolution < 3 ppm

Bias voltage 0 mV (no external bias required, simple circuit design)

Linearity Full scale error < 5%

Response speed t50 < 10s; t90 < 30s

Long-term drift 6 months sensitivity attenuation < 10%

Recommended load resistance 10Ω

Environmental tolerance specifications

Operating temperature: -40℃ ~ +50℃

Operating humidity: 15 - 90% RH, no condensation (humidity does not affect the baseline zero point, stability is strong in humid environments)

Pressure range: normal pressure ± 10%

Expected service life: > 4 years; original factory warranty 24 months

Storage life: Sealed original packaging can be stored for 12 months

III. Product core advantages

Three-electrode structure: Working electrode + Reference + Counter electrode, strong anti-interference ability, suppresses cross-interference of H₂, NO₂, SO₂, and has extremely low false alarm rate. 

Humidity zero drift characteristic: Switching between high and low humidity does not cause zero point offset, stable operation in garages, underground areas, and humid workshops

Miniature MINI packaging: Small in size, compatible with 4-series / 7-series standard sensor bases, can be integrated into small handheld detection instruments

Ultra-long life: 4-year service life under normal conditions, significantly reduces the cost of equipment maintenance and replacement of chips in the later stage

Factory pre-calibration: Good consistency, no need for individual adjustment for batch installation, compatible with 4-20mA transducer boards for use

Specifications: