NEMOTO ENVIRONMENTAL TECHNOLOGY
 GAS SENSORS FOR INSTRUMENT MAKERS WORLDWIDE

     
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NP-30SH  Pellistor Gas Sensor

Specifications

Recommended Voltage:

2.0V  +/- 0.1V

Current Drawn:

300+/- 20mA

Zero Offset:

0mV +/- 30mV

Minimum Gas Sensitivity: 

20mV/% CH4/Air

Range: 

 0-100% LEL

Accuracy:

 +/- 1%LEL(CH4)

Maximum Long Term Drift:

 

   Span:

< +/- 5% Signal / 3 Month

   Zero:

<+/- ½ mV/Month

Response Time:

 T50: 3 sec  T90: 8 sec

Temperature Range:

 -20°C to +70°C

Temperature Drift:

 (-20°C to +70°C)

Zero:

 < +/-3%LEL

Humidity:

0-100%RH, non-condensing

Humidity Response:

+/- 2%LEL

Linearity: 

Effectively linear to 60%LEL


The Nemoto NP-30SH is a catalytic (pellistor) type flammable gas sensor supplied as a matched pair of pellistor elements mounted on a single header and protected by a metal mesh enclosure and can. The sensor detects and measures the presence of flammable gases and vapours in air, in the range 0-60% of the Lower Explosive Limit (LEL) of the gas or vapour being measured.

 Designed as a lower cost alternative to the twin-header NP-30 device, the NP-30SH may be used as the sensing platform in fixed flammable gas detection systems.
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