Zhengzhou Winsen Electronics Technology Co., Ltd
www.winsensor.com
Tel: 86-371-67169097/67169670 Fax: 86-371-60932988
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Fig5.Output of sensor at different temperature
Fig6.Zero output of sensor at different temperature
Cross Interference
ME4-H
2
S sensor also can respond to other gases besides target gas H
2
S. Following data are
the response characteristics of the sensor to interferential gases at certain concentration for
your reference.
Stable2. Cross interference
Interferential Gas
Concentration
ME4-H
2
S
CO
200ppm
＜
0.5 ppm
Cl
2
10 ppm
＜
-0.7 ppm
C
2
H
4
400 ppm
＜
0.3 ppm
H
2
10000 ppm
＜
5 ppm
Alcohol
1000 ppm
＜
0.3 ppm
NH
3
50 ppm
＜
-0.3 ppm
H
2
S
20 ppm
＜
1.6 ppm
PH
3
20 ppm
＜
14 ppm
Methanal
10 ppm
＜
2.5 ppm
Benzene
100 ppm
＜
0.2 ppm
Methanol
200 ppm
＜
0.15 ppm
Cautions!
Tin soldering is prohibited.
Before using, power on to aging for more than 48 hours is necessary.
Pins can’t be broke off or bent.
Don’t disassemble the sensor to avoid the damage caused by electrolyte leakage.
Avoid contacting organic solvent (including
Silicone rubber and other adhesive
), coatings, medicine,
oil and high concentration gases.
All the electrochemical sensors shall not be encapsulated completely by resin materials, and
shall not immerse in pure oxygen environment, otherwise, it will damage the function of sensor
All electrochemical sensors shall not be applied in corrosive gas environment, or the sensor will
be damaged
Zero calibration should be finished in clean air.
During test and usage, sensors should avoid the gas inflow vertically
The side for inflow can’t be choked and polluted.
The laminating film above the sensor surface can’t be uncovered and damage.