Honeywell C7015A Manuel D’Utilisation
INSTALLATION
INSTALLING AN
PLATE
AnorificeplatewithahexagonalorificediameterofO.125
in.
mm] is available for the
Infrared Flame
Detector.
orifice can be mounted in front
of the cell in the
seal-off
adapter
or in a standard
in. coupling. (Refer to Fig.
1.)
The size of the sighted area at various distances can be
determined
Table 4 or 5. For example, if the distance
in.
mm] diameterorifice
(or refractory) is 36 in.
mm], the dieter of the
sighted area is 2.4 in.
mm].
Fig. 3 shows how a typical orifice plate restricts the view
of a small area around the flame junction.
OF AREA SIGHTED THROUGH ORIFICE, IN IN.
6
1.1 1.6
2.1 2.6 3.2
5-DIAMETER
OF AREA SIGHTED THROUGH ORIFICE, IN MM
Fig.
orifice plate to restrict detector field of view to intersection of pilot and main flame, or to
area hot
ORIFICE PLATE
PLATE
PILOT
\
HOT REFRACTORY
MAIN FLAME
PILOT, HOT REFRACTORY\ MAIN
6