Landis & Staefa Division CC1N7781E June 01, 1999 1/8
7
781
Flame Safeguards
LAE10
LFE10
Series 02
Supplementary data sheets 7712 and 7713
Flame safeguards for burners with intermittent operation.
For safety reasons - self-test of flame supervision circuit, etc. - at least one controlled
shutdown is required every 24 hours.
For flame supervision systems for continuous operation, refer to data sheet 7783.
The LAE10 is used for the supervision and indication of oil flames, the LFE10
for gas and oil flames.
The LAE10 / LFE10 and this data sheet are intended for use by OEMs which
integrate the flame safeguards in their products.
The LAE10 is designed for the supervision of oil flames in connection with selenium
photocell detectors RAR...
The LFE10 is suited for the supervision of gas flames and luminous or blue-burning oil
flames in connection with UV detectors QRA... or a flame rectification probe.
Both types of flame safeguards are used primarily in conjunction with the LEC1 burner
control on the following applications:
– Dual-supervision of burners
Supervision of the main flame or of the pilot and main flame by two identical or
different types of flame detectors
– Supervision of forced draught oil / gas burners
Supervision of the flame with different types of detectors, depending on the
operating mode
– Multi-flame supervision
Plants with several burners whose flames must be supervised individually by one or
several detectors, whose startup and supervision, however, should or must be
carried out centrally and simultaneously by only one burner control
– The flame safeguards can also be used in connection with other types of burner
controls provided the given combination and selected circuitry do not impair the
burner control’s safety functions
– The flame safeguards are also used as flame indication units in combustion plant
with manual startup
ISO 9001
Use
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