Specifications

Recommended Voltage:                 2.0V  +/- 0.20V
Current Drawn:                                 180 +/- 10mA
Zero Offset:                                    0mV +/- 35mV
Sensitivity:           Typically16mV @2000ppm C₄H₁₀
Range:                                                0-50% LEL
Repeatability:                                        +/- 0.5mV
Expected Lifetime in the field:                 >5 years*
Response Time (T₉₀):                                    8 sec
Temperature Range:                       -10°C to +50°C
Humidity:                      0-95%RH, non-condensing

Designed as a gas sensor for use in Domestic (Residential) Gas Detectors, the NAP-66A detects and measures the presence of gases such as Propane or LPG in air, in the range 0-50% of the Lower Explosive Limit (LEL) of the gas or vapour being measured. The NAP-66A is optimised for the detection of higher hydrocarbons such as Propane and LPG, and should not be used for the detection of Methane or Natural gas.

The highly advanced and efficient production techniques developed by Nemoto means that the cost of technically superior pellistor technology, usually reserved for Industrial Applications, is now appropriate low enough for them to be used for domestic gas detectors, which have hitherto tended to use less expensive, but less stable and less selective semiconductor type gas sensors.

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