DS4-HCN-50 Electrochemical Gas Sensor For Petrochemical Industry

Detection Principle:

Adopts solid polymer electrochemical sensing technology based on electrochemical catalytic reaction. The sensor consists of three catalytic electrodes, a solid electrolyte, and gas diffusion holes. Gas reaches the working electrode through the diffusion holes, where electrochemical oxidation or reduction reactions occur on the porous micro-surface of the electrode. The solid electrolyte conducts electron transfer, outputting a current signal whose magnitude represents the gas concentration.

Features:

• High Sensitivity: Detects down to 0.01ppm of hydrogen cyanide (HCN) and withstands continuous exposure to high-concentration HCN.
• Rapid Response: Response time within 3 seconds, T90 < 30s.
• Stable Performance: Minimal zero-point drift during long-term use.
• Long Service Life: Non-consumable solid electrolyte technology reduces sensitivity decay over time.
• Compact Size: Facilitates integration into multi-parameter devices and portable/wearable equipment.
• Strong Anti-Interference: Special catalytic electrode preparation technology avoids interference from other gases.
• Wide Temperature Range: Operates normally at -40°C to 55°C.
• High Linearity: Full-range linear measurement with accuracy up to ±5% F.S.

Performance Parameters:

• Measurement Range: Available in specifications like 100ppm and 5000ppm.
• Resolution: Up to 0.01ppm.
• Accuracy: ≤±5% F.S.
• Response Time: T90 < 30s, general response within 3 seconds.

Electrical Parameters:

• Output Type: UART digital signal output.
• Operating Voltage: Meets industrial standards (specific values refer to the product manual).

Physical Parameters:

• Weight: 4.56g.

Environmental Parameters:

• Operating Temperature: -40°C to 55°C.
• Operating Humidity: Within common environmental humidity ranges (details refer to the product manual).

Application Fields:

• Chemical Industry: Monitors HCN emissions in industrial processes to ensure worker safety and prevent leaks.
• Petrochemical Industry: Detects HCN generated in petrochemical production to prevent accidents.
• Fire Emergency Response: Enables firefighters to monitor HCN in fire scenes for personal safety.
• Other Fields: Applied in gas, fertilizer, medical, dyeing, and related industries for real-time HCN concentration monitoring, providing early warnings and environmental protection support.