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Overview
Flame monitor
Pin configuration
Connection of the flame detectors is
according to colour code in compliance
with the pin configuration on the flame
monitor to be used or the Etamatic /
BCS. The detector cable has a measu-
ring cable (pink) where the signal
voltage can be measured with a com-
mercially available potential-free
measuring instrument (measuring resi-
stance >5M
Ω
, e.g. a hand-held multi-
meter in compliance with EN 61010).
The measurement used to ideally align
the flame detector FFS 06 to the flame
is relative to frame (blue) of the detector
line.
DURAG Compact Flame Monitor
D-LX 100
Function
After turning on, the compact flame
monitor will first undergo a self test and
then repeat the same during operation
at regular intervals. The radiation of the
flame is converted into an electric flame
signal using a highly sensitive photocell.
It is only the flaring portion of the flame
signal which is processed by the two
microprocessors of the compact flame
monitor D-LX 100. Thus, the monitoring
is independent of outside light, insofar it
is constant light. Depending on the set
operating point, the flame signal causes
the flame contact to switch. This opera-
ting point can be adjusted on the unit in
10 steps. The safety time can be fac-
tory-set to the values of 1, 3 or 5 sec. In
addition, the flame intensity determined
is made available on the measuring out-
put as analogous value.
Application
The DURAG compact flame monitor D-
LX 100 is the first flame monitor of its
kind. Its radiation detectors cover the
spectral range from 190 to 520nm. All
blue burning flames, such as gas or oil
flames, can be monitored with these
flame monitors. In particular, flames the
UV radiation of which are absorbed by
dust, water vapour or other substances,
and can therefore not be monitored with
conventional UV cells, are safely detec-
ted by means of the new highly sensi-
tive UV semiconductors. This flame
monitors provided with the highly sensi-
tive UV semiconductors have also pro-
ven themselves in NOx-reducing
combustion techniques, such as the
waste gas recirculation.
Ultraviolet flame monitor
D-LX 100 UL / UA / UAF
The radiation detectors used in these
flame monitors cover a spectral range
from 190 to 520nm. All blue burning fla-
mes, such as gas or oil flames, can be
monitored with these flame monitors. In
particular, flames the UV radiation of
which are absorbed by dust, water
vapour or other substances and can,
therefore, not be monitored with con-
ventional UV cells, are safely detected
by means of the new highly sensitive
UV semiconductors.
This flame monitors provided with the
highly sensitive UV semiconductors
have also proven themselves in NOx-
reducing combustion techniques, such
as the waste gas recirculation.
Infrared flame monitor
D-LX 100 IG / IS
Depending on type, the radiation detec-
tors used for the IR flame monitors have
a spectral sensitivity between 300 and
1100nm or 780 and 1800nm. These
flame monitors are particularly suited for
the monitoring of yellow burning coal or
wood dust flames which contain no or
only very small UV radiation portions. IR
flame monitors are also well suited for
the monitoring of oil flames even if addi-
tional substances are burned.
Figure 3
