BFI Automation CFC 2000 Technical Description page 3

WARNING: The functioning of the compact flame controller depends
!
both on the burner configuration and from the air flow as well as the
spectral pattern of the flames (wavelength). We will advise you gladly
WARNING
in this regard on request.
Selection of the current output 0 or 4 to 20mA
The switch over of the current output of the
compact flame controller CFC 2000 will be car-
Selection of the right modulation filter
For furnaces with very high power density, it
can become necessary to activate another
modulation filter besides.
The compact flame controller should not be ad-
justed to maximum signal level "Flame ON" but
as with the flame scanners also, to the highest
"Flame ON" / "Flame OFF" relation. Through
the numerous adjusting options of the compact
flame controller the system itself could be eas-
ily adjusted to all boiler geometries and any
Mounting
For guarantee of an optimal flame safeguard
control, the correct and oscillation poor posi-
tioning of the sight tube to the flame is an es-
sential assumption. For the selective burner
control, the mounting has to occur in such a
way that the primary combustion zone will be
in all load ranges at the viewing angle of the
device. The prolongation of the viewpoint axis
must not cut the first half of other flames.
Length and diameter of the viewpoint tube have
a direct influence on the valuable flame radia-
tion since the viewing angle of the compact
flame controller CFC 2000 is defined. The maxi-
mum length of the used sight tube should not
exceed the maximum length 'L' on a given dia-
meter 'd' that no influence on the field of view
will occur.
d 1" 1,5"
L 0,5m 0,8m
2"
1,1m
BFI
ried out by the special software which is avail-
able from BFI Automation.
combustible throughput for getting an optimal
availability.
The adjustment of the modulation filter occurs
via DIP switches which are arranged on the
main board (red 4-part switches). A change of
adjustment to the DIP switches should only oc-
cur if an adjustment of the compact flame con-
troller is no more possible with the aid of soft-
ware.
However the sight tube should always be kept
as short as possible. A diameter of 2"is rec-
ommended. The correct direction is repre-
sented in the subsequent drawing. The optical
alignment system BFI 235 (part-no: P106) can
be supplied by BFI ex stock.
The compact flame controller CFC 2000 is
supplied completely with a quick release
flange. This flange assures possible assembly
and dismantling of the device on site which
could be done as quickly as possible. The
flange has a purge air connection which spe-
cial construction prevents the lens of contami-
nation or damaging by dust polluted air.
The optimal alignment system consists of heat
insulator, stop valve and ball flange.
This mechanical periphery can be supplied
upon request.
Automation
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