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Flat Semiconductor Refrigerant Sensor WSP5110

Summary:

WSP5110 freon 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.

Feature:

*High sensitivity to freon, benzene

*Quick response and resume

*Low power consumption, simple detection circuit

*Good stability and long life

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PARAMETER

Specification Product Size

Technical Data Sheet

Model			WSP5110
Sensor Type			Semiconductor flat surfaced sensor
Standard Encapsulation			Metal Cap
Detection Gas			Freon, benzene, alcohol &etc.
Detection range			10～1000ppm
Standard circuit	Loop voltage	V_C	≤24V DC
	Heating voltage	V_H	5.0V±0.1V AC or DC
	Load resistance	R_L	Adjustable
sensor features in standard test condition	Heating resistance	R_H	90Ω±10Ω(Room Temp.)
	Heating consumption	P_H	≤300mW
	Surface resistance	R_S	30KΩ～200KΩ(in 100ppm freon)
	Sensitivity	S	Rs(in air)/Rs(in 100ppm freon)≥3
	Concentration slope	α	≤0.65(R200ppm/R50ppm freon)
Standard condition of test	Temperature, humidity		20℃±2℃；65%±5%RH
	Standard test circuit		V_C:5.0V±0.1V； V_H:5.0V±0.1V
	Warm-up time		More than 120 hours

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