MP503 Air-Quality Gas Sensor

  • • Detection Gas: Alcohol, Smoke, VOC ects air quality elements
  • • Detection Range:10~1000ppm(Alcohol)
  • • Application: air cleaner, fresh-air system, IAQ system

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  • Principle Introduction
Principle Introduction:
Winsen Electronics, research and produce air quality monitoring gas sensor for home and office air cleaners, and fresh air system.
MP503 gas sensor is for air quality.It adopts multilayer thick film manufacturing technology.The heater and metal oxide semiconductor material on the ceramic substrate of subminiature Al2O3 are fetched out by electrode down-lead,encapsulated in metal socket and cap.Conductivity of the sensor is affected by the concentration of target gas.The higher the concentration is,the higher conductivity of sensor gets.Users can adopt simple circuit to convert variation of conductivity into output signal corresponding to gas concentration.
Applications :
It is used in occasions such as household and office for harmful gas detection, automatic exhaust device, air cleaner&etc.
Technical parameters :

Tips:For more parameter information, please refer to the latest manual provided by salesman.

Model MP503
Sensor Type Semiconductor flat surfaced sensor
Standard Encapsulation Metal Cap
Detection Gas Alcohol, Smoke
Detection range 10~1000ppm(Alcohol)
Standard circuit Loop voltage VC ≤24V DC
Heating voltage VH 5.0V±0.1V AC or DC
Load resistance RL Adjustable
sensor features in standard test condition Heating resistance RH 95Ω±10Ω(Room Tem.)
Heating consumption PH ≤300mW
Surface resistance RS 1KΩ~30KΩ(in 50ppm Alcohol)
Sensitivity S Rs(in air)/Rs(in 50ppm Alcohol)≥5
Concentration slope α ≤0.6(R100ppm/R30ppm alcohol)
Standard condition of test Temperature, humidity 20℃±2℃;65%±5%RH
Standard test circuit VC:5.0V±0.1V; VH :5.0V±0.1V
Warm-up time More than 48 hours
Reference Circuit :

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