UFC 3 -430-11
14 February 2001
and federal regulations should be consulted. Als o, most large boilers are dual fuel
which may be a combination of gas and oil.
5-2.13.5 Conductivity Analyzers. Conductivity analyzers are used in boiler plants to
monitor dissolved solids in the boiler drum. Use a conductivity analyzer for adjusting
boiler blowdown. Do not use it as the sole device for boiler blowdown control.
5-2.13.6 Methane Analyzers. Methane analyzers in a boiler plant are used for
methane measurement to provide an indication of a completed purge cycle prior to
boiler ignition o r during boiler shutdown. Note that this analyzer must be used in
conjunction with and not as a substitute for the minimum purge time requirements
stated in the applicable codes.
5-2.14
flame. For gas fired boilers always use an ultraviolet (UV) self -checking flame scanner.
Do not use a flame detector that is activated by hot refractory.
Provide a separate flame detector for each burner. Locate the flame detector
so that it will be activated only by its own burner and not by an adjacent burner or hot
refractory.
5-2.15
Continuous Emission Monitoring (CEM). Provide all necessary equipment
to meet federal, state, and local environmental analysis and documentation
requirements.
5-11
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