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NE4-HCHO-S

Electrochemical formaldehyde Gas Sensor

NE4-HCHO-S formaldehyde gas sensor

Specifications

Detectable Gas:

Detection range:

Maximum overload:

Output current:

Zero Offset (20°C)

Reproducibility:

Output drift in air:

Response time (90%):

Temp. depend. in air:

Expected lifetime:

Formaldehyde (CH2O)

0 – 10 ppm

50 ppm

500 +/- 150 nA/ppm

<0.05 ppm equivalent

+/- 2%

less than 20% / year

< 120 seconds

< 0.25ppm (-20 to 50°C)

>2 years

Operating Conditions

Operating temperature:

Humidity range:

Pressure:

Recommended resistor:

Bias voltage:

-20 +50 degrees C

15 – 90% RH

0.9 – 1.1 atm

10 ohms

Not required

General Description:

The NE4-HCHO-S is an electrochemical gas sensor with 3 electrodes for the detection of Formaldehyde (CH2O) in the range 0-10 ppm, resolving down to a lowest detectable limit of 0.02 ppm (working together with high quality electronics and software), in a variety of industrial and commercial gas detection applications.

Exhibiting high performance with long-term stability, this compact (20.4mm dia) sensor is suitable for portable Gas Detection Instruments or Fixed Gas Detection heads.

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Nemoto's porous electrode technology enables accurate gas detection with high sensitivity. The mechanical design of the sensor gives optimum gas diffusion characteristics, and the hermetically sealed enclosure prevents costly electrolyte leakage.

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  •        3-Electrode design for greater stability

  •        Compact, leak-proof enclosure

  •        Resistant to shocks and vibration

  •        Linear output

  •        Highly specific to target gas

  •        Unaffected by humidity

  •        Low Power consumption

  •        Very Low Long term drift

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