NEMOTO ENVIRONMENTAL TECHNOLOGY
 GAS SENSORS FOR INSTRUMENT MAKERS WORLDWIDE

     
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NEW LOW COST ELECTROCHEMICAL SENSORS FOR DISPOSABLE PORTABLES

The NT-XX-2F Range

NT-CO-2F (Carbon Monoxide)

NT-H2S-2F (Hydrogen Sulphide)

The NT-XX-2F range of Electrochemical Gas Sensors are  a new generation of gas sensors designed specifically for use in the latest disposable industrial "clip"  type gas alarms. Configured for a lifetime of 2  years, The NT-XX-2F range combines cost effectiveness and high performance in a design conscious package at very low cost. Available for both Hydrogen Sulphide and Carbon monoxide (with other gases pending).

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. The sensors are available either with solder pins (which may be soldered directly) or complete with pcb sockets, to facilitate ease of manufacture for our customers. We believe these new sensors from Nemoto represent the automatic choice of sensor for any manufacturer designing a disposable pocket-clip type instrument.

SPECIFICATIONS

 

NT-CO-2F

NT-H2S-2F

NT-NO2-2F

  

Detectable gas:

Carbon Monoxide

Hydrogen Sulphide

Nitrogen Dioxide

  

Detection range:   

0 – 1000 ppm

0 – 100 ppm

0 – 20 ppm

  

Maximum range

  2000 ppm

  500 ppm

  100ppm

  

Output current:

 40 +/- 10 nA/ppm

 120 +/- 20 nA/ppm

 150 +/- 30 nA/ppm

  

Reproducibility:

+/- 2%

+/- 2%

+/- 2%

  

Zero in clean air:

<+/-5ppm equivalent

<+/-1ppm equivalent

<+/-0.5ppm equivalent

  

Output drift in air:

< 4%/month

< 4%/month

< 4%/month

  

Response time (T90%):

 < 30 seconds

 < 30 seconds

 < 25 seconds

  

Temperature drift (zero)

<10ppm (-20to+50°C)

<2ppm (-20to +50°C)

<2ppm (-20to +50°C)

  

Operating lifetime:

2-years

2-years

2-years

  
PDF Datasheet Download:    

OPERATING CONDITIONS

Operating temperature:

 -20°C to + 50°C

Humidity range (constant)

 15-90% RH

Humidity range (intermittent)

  0-99%% RH

Pressure: 

  0.9 – 1.1 atm

Recommended resistor: 

 10 ohms

Bias voltage: 

 Not required

Recommended Storage temp

  0-20°C

Storage time

 6 months (without compromising lifetime)