NAP-50A/55A
Low-cost Catalytic gas sensor for domestic Natural Gas Detectors. Mounted in a small size plastic housing.
The Nemoto NAP-50A and NAP55A are catalytic (pellistor) type flammable gas sensors supplied as matched pairs of catalytic elements mounted on a single header enclosed in a plastic housing and protected by a metal mesh. Designed as a gas sensor for use in Domestic (Residential) Gas Detectors, the sensor detects and measures the presence of flammable gases and vapours in air, in the range 0-50% of the Lower Explosive Limit (LEL) of the gas or vapour being measured.
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.
The NAP-50A is as the NAP-55A but with lower cross-sensitivity to alcohols, particularly ethanol. The performance of the NAP-50A is fully compliant with internationally recognised standards for domestic explosive as detection, such as EN-50194.
