WZ Formaldehyde
sensor from DART SENSORS works on the proven fuel cell technology and responds
directly to the volume concentration of HCHO. WZ realizes the detection of HCHO
by the reaction occurred on the working electrode of the micro fuel cell,
during which the current generated is proportional to the concentration of HCHO.
WZ is perfect for application powered by battery because fuel cell realizes gas
detection without power consumption.
|
Item
|
Technical
Specification
|
|
Principle
|
Micro
Fuel Cell
|
|
Range
|
0-2ppm
|
|
Max
Overload
|
10ppm
|
|
Sensitivity
|
250±100(nA/ppm)
|
|
Response
Time(T90)
|
＜40Sec
|
|
Baseline（20℃）
|
±30ppb
|
|
Repeatability
|
2%
|
|
Linearity
|
linear
|
|
Temperature
|
-20℃～50℃
|
|
Pressure
|
1atm±10％
|
|
Humidity
|
15％－90％
|
|
Lifetime
|
5
years in air
|
|
Warranty
Period
|
12
months
|
|
Weight
|
3g
|
