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