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NH3 gas sensor

Product catalog summary

Product Introduction
The NH3 sensor is a MEMS technology-based gas sensor utilizing semiconductor nanomaterials for detecting ammonia (NH3) across various concentrations and environmental conditions.

Characteristics
The sensor is noted for its small size, low power consumption, high sensitivity, and long lifespan.

Main Applications
Applications include industry online monitoring, public area environmental monitoring, portable air detectors, deodorant machines, air purifiers, and odor detection in animal husbandry.

Technical Parameters

Sensor Model: S1002
Sensor Style: MEMS semiconductor sensor
Standard Package: Ceramic Package
Detected Gas: Ammonia (NH3)
Detection Range: 0 ~ 300 ppm
Resolution: 1 ppm
Circuit Voltage: ≤5V or 3.3V DC
Heating Voltage: 1.8±0.05 V DC
Load Resistance: Adjustable (Proposed RL: 300-500kΩ)

Sensor Unit Characteristics

Heating Resistance: 50±10 Ω (Room Temperature)
Heating Power: ≤ 30 mW
Sensor Resistance: 500 ～ 3000 KΩ (in air)
Sensitivity: R0 (in air)/Rs (in 5ppm NH3) ≥ 1.1
Slope: a ≤ 0.8 (R50ppm/R10ppm NH3)

Standard Test Conditions

Temperature: 20±2 ℃
Humidity: 55±5% RH
Standard Test Circuit: VC: 5V or 3.3V±0.1 V, VH: 1.8V±0.05 V
Preheating Time: 30 min
Response Time (T90): <60 s
Recovery Time (T10): <120 s
Expected Lifetime: ≥5 Years

Pin Assignment and Characteristic Figures
Figures illustrate the sensor's resistance (Rs) in various gas concentrations and conditions, with R0 representing resistance in clean air. Tests are conducted under standard conditions, showing sensor stability and sensitivity to interference gases.

Catalog excerpts

MEMS Ammonia Gas sensor (NH3) Product introduction NH3 sensor is MEM-technology based gas sensor with semiconductor nanomaterial as sensing material, which can be used for detecting NH3 of different concentration in different environmental conditions. Characteristic The sensor has the characteristics of small size, low power consumption, high sensitivity, long lifetime and so on. Main application Industry online monitoring, Public areas environmental monitoring, Portable air detector, Deodorant Machine and Air Purifiers, Odor detector in animal husbandry etc...

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Expected Lifetime

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In the figure, Rs represents the resistance value of the sensor in different concentrations of gas, and R0 represents the resistance value of the sensor in clean air. Test the sensitivity of different types of interference gases separately. All tests in the figure are completed under standard test conditions.

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In the figure, Rs represents the resistance value of the sensor in different concentrations of gas, and R0 represents the resistance value of the sensor in clean air. The test gas was 10 ppm of NH 3. All tests in the figure are completed under standard test conditions. In the figure, Rs indicates the stable resistance of the sensor in ammonia at 30ppm concentration under different temperature and humidity conditions, and R 0 indicates the stable resistance of the sensor in ammonia at 30ppm concentration under 20 ° C and 55% RH humidity conditions.

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All tests in the figure are completed under standard test conditions. The abscissa is the aging time and the ordinate is the resistance value of the sensor.

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NH3 gas sensor

NH3 gas sensor

Catalog excerpts

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