Description:
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.
Specifications of this sensor: High sensitivity to alcohol,smoke; quick response and resume; low power consumption,simple detection circuit,good stability and long life.
Application:
harmful gas detection
automatic exhaust device
aircleaner
etc.
Features:
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