NE7-CO-H10000 Electrochemical gas sensor
Key Features:
- Anti-Interference Design:
- Four-electrode structure enables internal compensation for hydrogen sensitivity, eliminating interference from unburned hydrogen (H₂) in combustion processes. Suitable for complex scenarios like gas equipment and industrial exhaust monitoring.
- Cross-sensitivity performance:
- No response: Cl₂, CH₄, C₂H₅OH, etc.
- Slight response: H₂ (100ppm ≈ <70ppm CO equivalent), NO (35ppm ≈ <7ppm CO equivalent), NO₂ (10ppm ≈ -0.5 to +1ppm CO equivalent).
- Environmental Adaptability:
- Temperature range: -20°C to +50°C with cold-start capability at -20°C.
- Humidity impact: Stable performance in 15%–90% RH; output fluctuation ≤5ppm under sudden humidity changes.
- Durability: Passed -20°C/50°C thermal shock test (10 cycles) with minimal performance degradation.
- High Precision & Reliability:
- 0.5ppm resolution and repeatability < ±2%, suitable for occupational safety (e.g., mines, chemical plants) and environmental monitoring (e.g., indoor air quality).
- Built-in temperature compensation reduces zero drift caused by ambient temperature changes.
Application Fields:
- Industrial Safety: CO leakage monitoring in gas boilers, furnaces, power plants, etc.
- Environmental Monitoring: Indoor air quality detection, underground parking ventilation control.
- Combustion Control: Combustion efficiency optimization for gas water heaters, stoves (requires integration with O₂ sensors).
- Portable Devices: Handheld CO detectors, multi-gas composite monitors.
Physical Parameters:
- Dimensions: Industrial-standard design compatible with 主流 gas detection equipment interfaces.
- Weight: Approximately 9.9g (reference for similar electrochemical sensors).
- Interface: Standard pin-type design for plug-and-play integration.
Usage Recommendations:
- Calibration Cycle: Perform zero and span calibration every 6 months to ensure long-term accuracy.
- Storage Conditions: Store at -20°C to +50°C with humidity <60% RH when unused; avoid prolonged exposure to high humidity or polluted gases.
- Lifespan Management: Typical service life is 24 months (dependent on usage environment); monitor sensitivity decay regularly.
Detected Gas | Carbon Monoxide (CO) |
Measurement Range | 0 - 1000 ppm (standard model) |
Maximum Overload | 2000 ppm |
Resolution | 0.5 ppm |
Response Time (T90) | < 35 seconds |
Output Signal | 100±20 nA/ppm (typical value) |
Baseline Range (Clean Air) | -3 to +15 ppm (equivalent CO concentration) |
Zero Drift | < 1 ppm (-20°C to +50°C) |
Operating Temperature | -20°C to +50°C |
Operating Humidity | 15% - 90% RH (non-condensing) |
Long-term Stability | Signal loss < 5%/year |
