ME4-H2S-E4 Hydrogen Sulfide Gas Sensor

Hydrogen Sulfide Gas Sensor

Applications :

*It is used for hydrogen sulfide detection in industrial occasions, mine and environmental protection field.

Product Advantages:

*High precision
*High sensitivity
*Short response time
*Good anti-interference ability
*High resolution, wide linear range

Product Description:

ME4-H2S-E4 hydrogen sulfide gas sensor is constant potential electrolysis type. Oxidation-reduction reaction with hydrogen sulfide and oxygen take place respectively on the working electrode and on the reference electrode. The process releases electric charge and generates current. The current is in direct proportion to the concentration of hydrogen sulfide. So the concentration of the target gas could be got by measuring the value of current. The 4th electrode (auxiliary electrode) is used to compensate the zero current, to make it has the characteristics of strong signal level and low zero current.

Technical Parameters:

Detection Gas	Hydrogen Sulfide(H2S)
Detection Range	0～100ppm
Max range	200ppm
Sensitivity	(0.9~1.5)µA/ppm
Resolution	<10ppb
Response Time(T90)	≤60s
Load Resistance	33-100Ω(recommended)
Stability(/month)	＜20﹪
Output Linearity	Linear
Zero drift(-20℃～40℃)	≤±0.1ppm
Temperature range	-30℃～50℃
Humidity range	15﹪～90﹪RH
Pressure range	80-120kPa
Lifespan	2years(in air)