Flame Detectors - Siemens LMV36.520A1 Basic Documentation

Building Technologies Division
Infrastructure & Citiies Sector

7.2 Flame detectors


For display of the flame on the AZL2..., the following general conditions apply:
- Display is subject to various component tolerances, which means that
deviations of 10% can occur
- Note that, for physical reasons, there is no linear relationship between flame
display and detector signal values
The LMV36... system can be used with different types of flame detectors. For the correct
use of flame detectors, refer to chapter Sequence diagrams.
The flame detector used must be correctly parameterized.
Caution!
Continuous operation is possible only when using an ionization probe!
In the hardware of the LMV36..., the flame signals are subdivided into 2 groups (group 0
covering types the QRB... and group 1 covering ionization and the QRA...). The flame
detector for gas is selected via parameter 221 (fuel 0) / 321 (fuel 1), that for oil via
parameter 261 (fuel 0) / 361 (fuel 1).
No. Parameter
Gas: Active detector flame evaluation
221 0 = QRB
1 = ION / QRA
Fuel 1 gas: Active detector of flame evaluation
321 0 = QRB
1 = ION / QRA...
Oil: Active detector of flame evaluation
261 0 = QRB
1 = ION / QRA
Fuel 1 oil: Active detector of flame evaluation
361 0 = QRB
1 = ION / QRA...
Basic documentation LMV36...
7 Basic unit
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CC1P7544en
25.09.2013