Winsen ME3-NH3 Electrochemical Ammonia Sensor

The ME3-NH3 electrochemical sensor detects ammonia gas concentration by measuring current based on the electrochemical principle. This involves the electrochemical oxidation process of ammonia gas on the working electrode inside the electrolytic cell. The current produced in the electrochemical reaction of the target gas is directly proportional to its concentration, following Faraday's law.

Electrochemical

• Avoid Extreme Conditions: Do not expose the sensor to temperatures and pressures outside of the specified range of -20°C to 40°C and 90-110 kPa.,
• Prevent Overexposure: Avoid exposing the sensor to ammonia concentrations above 50 ppm to prevent sensor saturation or damage.

• Store Correctly: Store the sensor at a temperature between -20°C and 50°C and humidity between 15% and 90% RH to ensure sensor longevity and reliability.,
• Follow Response Time: Allow up to 90 seconds for the sensor to reach T90 response time for accurate measurements.

• Description: The sensor can measure ammonia gas concentrations from 0 to 50 ppm.

• Description: Operational temperature range is -20°C to 40°C, and the working pressure should be maintained between 90-110 kPa.

• Description: Connect the sensor using the specified load resistance of 10Ω. Ensure proper alignment and secure connection of the sensor's output to the measuring device.

The sensor has a shipping weight of 0.01 kg and dimensions of 7 × 4 × 3 cm.