Principle Introduction:
Winsen Electronics, as a professional gas sensor manufacturer, produce electrochemical ammonia sensor, NH3 sensor for industrial use, using electrochemical working principle.
ME4-NH3 ammonia gas sensor is constant potential electrolysis type. Oxidation-reduction reaction with ammonia gas take place inside of the sensor. The process releases electric charge and generates current. The current is in direct proportion to the concentration of ammonia gas. So the concentration of the target gas could be got by measuring the value of current.
Applications :
For ammonia gas detection in industrial occasions and environmental protection field.
Technical parameters :
Tips:For more parameter information, please refer to the latest manual provided by salesman.
| Detection Gas |
Ammonia Gas(NH3) |
| Detection Range |
0～50ppm |
| Max range |
200ppm |
| Sensitivity |
（0.12±0.03）µA/ppm |
| Resolution |
0.1ppm |
| Response Time(T90) |
≤90S |
| Bias Voltage |
0mV |
| Load Resistance |
10Ω(recommended) |
| Repeatability |
＜10﹪Output value |
| Stability(/month) |
＜10﹪ |
| Output Linearity |
Linear |
| Zero drift(-20℃～40℃) |
-3～10ppm |
| Temperature range |
-20℃～50℃ |
| Humidity range |
15﹪～90﹪RH (No condensation) |
| Pressure range |
standard atmospheric pressure±10﹪ |
| Lifespan |
2 years（2ppmNH3） |
Reference Circuit :
