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TYPICAL SCANNER INSTALLATIONS
14
SCANNER
FORCED
CLEAN AIR
(FROM DISCHARGE
OF FAN)
DO NOT EXTEND MORE THAN
HALF-WAY INTO REFRACTORY
The maximum UV signal
from a flame is found in the
first one-third of the visible
flame taken from the point
where the flame begins. The
scanner sight pipe is aimed
at this area.
METHODS OF COOLING SCANNER
DO NOT EXTEND
MORE THAN
HALF-WAY INTO
REFRACTORY
INSULATING
TUBING
SEALING UNION
FORCED
AIR
EXTEND SIGHTING TUBE
6"(152.4) OR 8"(203.2)
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