DAVITEQ FORMALDEHYDE GAS SENSOR CH2O, 10 PPM, SERI-4

SENSOR SPECIFICATION
MEASURING SPECIFICATION  
Sensor type Daviteq Seri-4 electro-chemical gas sensor
Nominal range 0-10 ppm
Maximum overload 30 ppm
Filter -
Resolution 0.01 ppm
T90 response time < 30 s

Typical Baseline Range (pure air, 20°C)

-0.1 ppm .. + 0.1 ppm
Repeatability < 2% of reading
Accuracy < +/- 5% of reading
WORKING CONDITIONS  
Relative humidity range

15 % to 90 % RH non-condensing
** Abrupt changes in RH causes a short term transient signal

Temperature range

-40 °C to 50 °C 

Pressure range

Atmospheric ± 10% 

SENSOR LIFETIME  

Expected Operation Life

3 years in the air 

Expected Long-Term Output Drift in air

< 2 % of reading loss per month

We have other ranges: 50 ppm, and 1000 ppm.

CROSS SENSITIVITY DATA

Interfering Gas 

Concentration (ppm) Reading (ppm)

CO2

100 < 20

Ethanol (C2H5OH)

30 1
H2 100 5
H2S 20 ~ 20
Methanol (CH3OH) 80 10
Methyl Mercaptan (MM, CH3SH) 10 ~6
Tert-Butyl Mercaptan (TBM, (CH3)3CSH) 10 ~6