BFI Automation CFC 2000 Parts list manual

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COMPACT FLAME CONTROLLER
CFC 2000
TECHNICAL DESCRIPTION
EDITION: TB CFC2000-JMM REV.1
Important:
This data sheet is intended for authorized service personnel and engineers
of combustion engineering who have sufficient experience with the installa-
tion and the use of flame monitoring devices. We gladly help you if you still
have no experience with flame monitoring devices of BFI Automation.
Please contact BFI Automation if you have questions or if you require any
support. Read this technical description carefully it contains all technical
references!
BFI – Automation Dipl.-Ing. K.-H. Mindermann GmbH, Eggerscheidter Str. 57, D-40883 Ratingen
Phone. [phone] – 0, Fax [phone] – 42
E-Mail: [email protected]

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Compact Flame Controller
CFC 2000
UV, UV1, IR, IR1, IR2
- Flame scanner with integrated flame amplifier and flame relay.
- TÜV approved, DIN-DVGW, DIN-CERTCO certified
- For intermitted, continuous operation and 72-hours operation
- Type UV, UV1 : For natural Gas-, Oil- and dual fuel operation
- Type IR (VIS-IR): For monitoring of oil flames on diffusion burners
- Type IR1 (IR): For monitoring of natural gas flame in duct burners
- Type IR2 (IR): in preparation
- Dual channel flame monitoring and evaluation system.
- Adjustable sensitivity for both channels separate by software.
- Analogue output 0(4) – 20mA Intensity
- Possible flame evaluation by software
- Status indication of flame relay, and intensity indication by LED
- No additional wiring to separate flame scanners.
- Class of protection IP 65.
!
WARNING
WARNING: IMPROPER INSTALLATION OF THESE PRODUCTS
MAY BE HAZARDOUS TO LIFE AND PROPERTY
Function
For the flame radiation analysis, a well approved
integral procedure in the respective spectrum is
carried out with the compact flame controller.
After a pre-amplification, the unwanted CW light
component is withdrawn from the output signal of
the wear-resistant detector. The subsequent
sensitiveness attitude allows an attenuation of
the signal for adaptation to the combustion proc-
ess. The post-connected band pass filter caused,
that only the typical modulation of the flame ra-
diation of the primary combustion zone is valued
and so extraneous light signals by neighbour
burners can be distinguished from the own fla-
me.
Further functional groups include signal condi-
tioning and other for the so-called dynamic
monitoring channel which checks the fail safe
function of the device continuously.
A component or component defect leads to an
immediate disconnection of the flame relay,
which one is available as a floating change-over
contact for use with the burner management sys-
tem.
The switching condition is announced addition-
ally by a yellow LED on the reverse side of the
device behind the Perspex pane.
For the optimal adjustment of the compact flame
controller the flame strength can be read off di-
rectly on the device by means of a pulsating
green LED. For the visualization or remote indi-
cation, a current output is available at 0 or 4-20
mA.
The safety switched-off time which depends on
the combustibles to be checked is set ex-works
to a second. Longer switched-off times are op-
tionally available upon request.

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!
WARNING
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
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- ried out by the special software which is avail- able from BFI Automation.
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
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.
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" 2"
L 0,5m 0,8m 1,1m
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.

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!
CAUTION
CAUTION: All alignments and or adjustments must always be applied
if new repair parts were installed, the flame scanner was moved or
the flame picture was modified (e.g. through additional combustibles,
new torches, changes to the torches / air registers), as well as all ini-
tial installations.
heating
insulator
optical
adjustment
ball flange sight tube
mounting flange
flame scanner
adjustment angle
30° max
how to adjust in the right way
right wrong
░
30° ░
30°
primary air
fuel
flame root combustion area
changing of frequency and amplitude in
relationship to the distance of the flame root

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Installation
The pin assignment of the connector is shown in
the wiring diagram.
The output signal 0(4)-20mA for flame intensity is
not separated by the supply voltage, so the sig-
nal refers to the operating voltage measures. If
this should lead to problems, a corresponding
isolating transformer can be provided upon re-
quest. The burden of 250 ohms should always
not be exceeded.
The device is immediately ready for operation af-
ter switch-on of the supply voltage.
Wiring Diagram
Pin/Terminal Description colour code
BFI special cable KW6
1 Flame relay: Root white
2 Flame relay: Contact flame ON brown
3 Flame relay: Contact flame OFF pink
4 power supply: +24 V DC green
5 power supply: 0V (GND) yellow
6 current output 0(4)-20 mA grey
7 switch over canal 1 / canal 2 – 24V DC red
8 failure indication output +24V DC blue
!
CAUTION
CAUTION: In order to guarantee a proper operation the compact
flame controller must be tested several times at all conditions. The
burner has to be started and stopped several times (the flame relay
must always interrupt reliably with no flame on). Carry out these tests
while different neighbour burners are started and stopped as well as
on different boiler loads. This is a vital assumption for a proper and
reliable operation.
sensitivity switch over time I / II 7
red 7
failure indication output 8
blue 8
power supply +24V DC
flame relay "flame ON"
flame relay "root"
flame relay "flame OFF"
outer braided shield
current output 0/4 - 20mA
4
2
1
3
4
2
6
green
brown
white
pink
grey CFC
2000
6
power supply 0V (GND) 5 yellow 5
1
3
BFI-special cable KW5

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Standard Housing
Flame Proof Housing
Flame proof protection class: EEx d IIC T 6
for PTB 87/1095
Accessories
Power supply 230/115V AC
Ball flange 1” with 2” flange plate
Heating insulator 1“
3-way-ball-valve 1“
5bar pressure barrier 1“
Optical adjustment device
G1
223
Ø120
63
sensitivity
setting-
LED green = intensity
LED yellow = "flame ON"
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BFIBFI
BFI
Type
Ser.-No.:
24Vdc
Germany
8.xx
G1/2
108
190
G 1
235
purge air
Automation
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BFIBFI
BFI
USC
R
Type
Ser.-No.: 24Vdc
Germany

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Technical Data Sheet
Spectral Sensitivity
UV 270 to 420 nm
UV1 190 to 500 nm
IR 300 to 1050 nm
IR1 1050 to 2700 nm
Viewing angle 3°
Power supply 24 V DC +/-15%
Current consumption ca. 300 mA
Ambient temperature range -20°C...+70°C
Current output 0(4)...20 mA (Ra < 250 Ohm)
Current window possible adjustment by software
Failure output 24 V DC, short circuit protected
Sensitivity switch over Selection of the sensitivity switch over 24 V DC
Flame relay 1 change over contact, floating
VDE 0110, class A
max. 48 V switching voltage
max. 1 A switching current
max. 30 W switching power
Switching thresholds programmable by software
Safety switch off time factory adjusted to 1s
Sight tube connection 1" inside screw ISO 228
Purge air connection 1/2" inside screw ISO 228
Value of purge air 10 Nm3/h
Electrical connection
Standard dust proof Harting connector
Flame proof housing 3m special cable
Dimension
Standard with flange 235 x 108 mm (Length x Diameter)
Flame proof housing 223 x 120 mm (Length x Diameter)
Class of protection IP 65, NEMA 4
Weight
Standard 1,0 kg
Flame proof housing 3,5 kg
Full electronically self-check function for the guarantee of the faultless function of the device after VDE
0116, EN 230, EN 298, it correspond the guidelines TRD 411 to 414 and filled the additional require-
ments of TRD 604 for the 72- hours operation. DIN DVGW and DIN-CERTCO approved, CE conform.