The use of these
devices in catalysed engines converted to alternative fuels allows
for constant adjustment of the carburetion, and maintenance of the
correct air-fuel ratio (stoichiometry) in all operational
conditions during alternative fuel mode. The range of products
includes models provided with different methods of adjustment. The
adjustments can be performed manually by the use of micro-switches,
or with the help of more sophisticated instruments such as PCs or
hand-held testers.
