ME4-H
2
S Hydrogen Sulfide Gas Sensor
Profile
ME4-H
2
S 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 counter 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.
Features
Low power consumption, high precision, high sensitivity, wide linear range,
good anti-interference ability, excellent repeatability and stability.
Main applications
It is used for hydrogen sulfide detection in industrial occasions, mine and environmental
protection field.
Technical Parameters
Stable1.
Detection Gas
Hydrogen Sulfide(H2S)
Detection Range
0
～
100ppm
Max range
500ppm
Sensitivity
(0.8±0.15)µA/ppm
Resolution
0.1ppm
Response Time(T
90
)
＜
30S
Bias Voltage
0mV
Load Resistance
10Ω(recommended)
Repeatability
＜
2
﹪
Output value
Stability(/month)
＜
2
﹪
Output Linearity
Linear
Zero drift(-20
℃～
40
℃
)
≤0.2ppm
Temperature range
-20
℃～
50
℃
Humidity range
15
﹪～
90
﹪
RH
Pressure range
standard atmospheric pressure±10
﹪
Lifespan
2years(in air)