NEMOTO ENVIRONMENTAL TECHNOLOGY
GAS SENSORS FOR INSTRUMENT MAKERS WORLDWIDE

     
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NP-30  Pellistor Gas Sensor

Specifications

Recommended Voltage:                         2.0V  +/- 0.1V
Current Drawn:                                       300 +/- 20mA
Zero Offset:                                          0mV +/- 25mV
Minimum Sensitivity:                          18mV/% CH4/Air
Range:                                                     0-100% LEL
Accuracy:                             +/- 1%LEL(CH4)Maximum
Long Term Drift:Span:                        +/- 1% LEL/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:                                                         < +/- 2%LEL
H
umidity:                            0-100%RH, non-condensing
Humidity Response:                                      +/- 1%LEL
Linearity:                            Effectively Linear to 60%LEL


The Nemoto NP-30 is a catalytic (pellistor) type flammable gas sensor supplied as a matched pair of elements mounted on TO4 size headers and protected by a metal can.

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 a sensing platform for use in fixed flammable gas detection systems, the NP-30 exhibits excellent long term zero and sensitivity stability and a high level of resistance to catalytic poisons. The device is compatible with a wide range of commercially available Gas Detection Systems and remote flammable gas detection heads.

The highly automated manufacturing procedure employed by Nemoto results in a repeatable reliable sensor which, unlike similar devices, requires no trimming resistor to enable the detector to be matched with a compensator.

 

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