Zhengzhou Winsen Electronics Technology Co., Ltd
www.winsen-sensor.com
Tel: 86-371-67169097/67169670 Fax: 86-371-60932988 Email:
Cautions
1 .Following conditions must be prohibited
1.1 Exposed to organic silicon steam
Sensing material will lose sensitivity and never recover if the sensor absorbs organic silicon steam.
Sensors must avoid exposing to silicon bond, fixature, silicon latex, putty or plastic contain silicon
environment.
1.2 High Corrosive gas
If the sensors are exposed to high concentration corrosive gas (such as H
2
S, SO
X
, Cl
2
, HCl etc.), it will
not only result in corrosion of sensors structure, also it cause sincere sensitivity attenuation.
1.3 Alkali, Alkali metals salt, halogen pollution
Fig6.Responce and Resume
Fig5 shows the changing of V
RL
in the process of putting
the sensor into target gas and removing it out.
Fig5.Sensitity Curve
Fig5 shows the V
RL
in H2 gas with different concentration.
The resistance load R
L
is 4.7 KΩ and the test is finished in
standard test conditions.
Fig7.long-term Stability
Test is finished in standard test conditions, the abscissa is observing time and the ordinate is V
RL
.
400ppm H
2
(RL=4.7k)
Concentration (ppm)
Time (s)
Time (day)