NAP-55A Catalytic Flammable Gas Sensor

NAP-55A Catalytic Flammable Gas Sensor :

• The NAP-55A Gas Sensor is a low–cost Catalytic Flammable Gas Sensor designed for the detection and
  measurement of Methane or Natural Gas in the range 0-50% LEL. Developed primarily for use in
  Residential Gas Detectors, the NAP-55A has also been found to be useful in a wide variety of other
  applications where reliable detection of gas leaks and other gas hazards is required at low cost.
• The NAP-50A sensor is a special, modified version of the NAP-55A, modified to reduce the effect of
  potential cross-sensitive gases likely to be encountered in residential premises, particularly Ethanol, in
  compliance with the European standard for Residential Gas Detectors EN 50194.
  The NAP-50A should therefore be selected if high sensitivity to Natural Gas, Methane or LPG only is
  required, especially if it is to be used as the sensing platform within an EN50194 approved residential gas
  detector in Europe. Where maximum sensitivity to all flammable gases is required, The NAP-55A should be
  used.
• The operating characteristics and performance of the two sensors are virtually identical, apart from the
  cross-sensitivity effects noted above. This manual is therefore considered by Nemoto to apply equally to
  both types, apart from the “Sensitivity to gases other than Methane” section on Page 6.
  The NAP-55A / NAP-50A uses the superior catalytic “pellistor” detection principle often used in high quality
  Industrial Gas Detectors. It hence has many benefits over other low-cost gas sensor types.