NEMOTO ENVIRONMENTAL TECHNOLOGY
 GAS SENSORS FOR INSTRUMENT MAKERS WORLDWIDE

     
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NP-17SM  Pellistor Gas Sensor

 

Specifications

Recommended Voltage:

2.0V  +/- 0.1V

Current Drawn:

170 +/- 20mA

Zero Offset:

        0mV +/- 25mV

Minimum Sensitivity: 

 20mV/1% CH4

Range:

     0-100% LEL

Accuracy:

+/- 1%LEL(CH4)

Maximum Long Term Drift:

 

     Span:

< +/- 5% LEL / 3 Month

     Zero:

<+/- ½ mV/Month

Response Time:

T50: 3 sec  T90: 8 sec

Temperature Range:

 -40°C to 70°C

Temperature Drift:

(-20°C to +70°C)

     Zero:

< +/-3%LEL

Humidity Range:

0-100%RH, non-condensing

Humidity Response: 

 +/- 2%LEL

Linearity:

Linear within 5% at 100%LEL


The Nemoto NP-17SM 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 stainless steel enclosure. The sensor detects and measures the presence of flammable gases and vapours in air, in the range 0-100% of the Lower Explosive Limit (LEL) of the gas or vapour being measured.

Designed as an improved version of the established NP-17S sensor, the NP-17SM exhibits very similar performance characteristics to the twin header NP-17 sensor in a very inexpensive single header enclosure

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Datasheet
(PDF)