Low-Cost Electrochemical Toxic Gas Sensors for Residential and Light Commercial Applications

General Description:

The NE4-NO is an electrochemical gas sensor with 3 electrodes for the detection of Nitrogen Monoxide (NO) 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.  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.

Features:


Note: The NE4-NO sensor requires biased operation and therefore will not function correctly in a standard unbiased sensor circuit such as is used by the NE4-CO sensor

NE4-NO Electrochemical Nitrogen Monoxide (NO) Gas Sensor



Specifications


Detectable gas:

Nitrogen Monoxide (NO)

Detection range:

0 – 250 ppm

Maximum overload:

1000 ppm

Output current:

400 +/- 80 nA/ppm

Reproducibility:

+/- 2%

Zero offset in clean air:

TBA

Output drift in air:

less than 2% / month

Response time (90%):

< 40 seconds

Temp. depend. in air:

<+/- 4ppm (-20 to+50°C)

Expected lifetime:

 >2years

Operating conditions


Operating temperature:

 -20 +50 degrees C

Humidity range:

15 – 90% RH

Pressure:

0.9 – 1.1 atm

Recommended resistor:

10 ohms

Bias voltage:

+300mV