MEMS Ammonia NH3 gas sensor
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+86 18854156199 
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PRODUCT DESCRIPTION

MEMS Ammonia NH3 Gas sensor

PN: S1002


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…


Technical Parameters


Sensor ModelS1002
Sensor styleMEMS semiconductor sensor
Standard PackageCeramic Package
Detected GasAmmonia  (NH3)
Detection Range/ppm0 ~ 300 ppm
Resolution/ppm1ppm
Circuit VoltageCircuit VoltageVC≤5V or 3.3V DC
Heating VoltageVH+1.8±0.05 V DC
Load ResistanceRLAdjustable (ProposedRL:300-500kΩ)
Sensor UnitCharacteristicsHeating ResistanceRH50±10 Ω(Room Temperature)
Heating PowerRH≤ 30 mW
Sensor ResistanceRs500  ~  3000 KΩ(in air)
SensitivitySR0 (in air)/Rs (in 5ppm NH3) ≥ 1.1
Slopea≤ 0.8(R50ppm/R10ppm NH3)
Standard TestConditionsTemperatureHumidity20±2  C;55±5% RH
StandardcircuitTestVC  :5V or 3.3v   or   3.3V±0.1 VVH  :1.8V±0.05 V
Preheating time30min
Response Time (T90)<60 s
Recovery Time  (T10)<120 s
Expected Lifetime≥5 Years


Pin Assignment


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Characteristic figures


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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.

4.jpg

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.


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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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