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5
Instructions for Maintenance
5.2.1.3 Operating mode switchover
Two preselectable operating modes
The compact flame scanner F200K offers users two operating modes for selection. This
makes it possible to select two different settings in the range of gain levels. The individual op-
erating modes can be switched during operation.
5.2.2
Preparations
5.2.2.1 Checking the Compact Flame Scanner
The flame scanner can be checked for proper functionality without a flame being present.
1
Carry out the complete electrical installation of the flame scanner and connect it to thesup-
ply voltage. A LAMTEC test emitter of the FFP30 type (IR + UV) can be used as an aux-
iliary means for flame simulation.
2
Simulation of flame radiation in front of the flame scanner's viewing port. This can be
achieved using a lighter or any other type of a modulated-light source (do not use the
mains frequency) having a sufficiently high intensity. For example the light from a lamp can
be modulated by moving splayed fingers to and in front of the bulb.
The flame scanner will switch on its output contacts if the flame signal is simulated for a suffi-
cient period of time. This is indicated by the extinction of the red LED and the pulsating light
of the green LED. The 6-level intensity indicator illuminates.
If no flame signal is indicated despite apparent correct functionality then check the output con-
tact (s. Kapitel
5.2.2.2 Optics
There are no special requirements for locking discs or similar components when using
IR-
flame scanners
. Small accumulations of dirt due to dust and similar materials are generally
not critical for flame detection.
In
UV- flame scanners
, the requirements for locking discs are more critical. Ensure that ma-
terials, such as quartz, that allow UV light to pass through freely are used. These materials
are used in the LAMTEC UV adjustable holding devices (FH30, FV30, FH40 and FV40) Small
accumulations of dust, water and other contaminants are much more likely to affect the per-
formance of flame detection than when using an IR scanner.
WARNING!
When using an F200K without mains frequency suppression, it must be ensured that it is pro-
tected against the detection of mains frequency light. The mounting of the sight opening on
the burner must meet the requirements of a tool mounting. Unintentional loosening of the
F200K must be prevented.
Advice on this is available from LAMTEC support.
Summary of Contents for F200K Series
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