Principle Introduction:
WSP5110 Refrigerant detection gas sensor 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 widely used in home, environmental occasions for Refrigerant detection.

Technical parameters :

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

Model			WSP5110
Sensor Type			Semiconductor flat surfaced sensor
Standard Encapsulation			Metal Cap
Detection Gas			Refrigerant, benzene, alcohol &etc.
Detection range			10～1000ppm
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	90Ω±10Ω(Room Temperature)
	Heating consumption	PH	≤300mW
	Surface resistance	RS	30KΩ～200KΩ(in 100ppm Refrigerant)
	Sensitivity	S	Rs(in air)/Rs(in 100ppm Refrigerant)≥3
	Concentration slope	α	≤0.65(R200ppm/R50ppm refrigerant)
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		Not lessthan120 hours
Life Span			10 years

Reference Circuit :

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