User Manual

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Building Technologies CC1N7546en
13.04.2018
Technical Data (cont´d)
Check the intensity of flame with the AZL2...
For system-specific reasons, the display of maximum flame intensity by the AZL2... of
maximum intensity is limited to approx. 55 %.
Warning!
Flame detectors QRC… are only suited for AC 230 V operation.
Start prevention (extraneous light) with
IQRC
Ca. 15 µA, display approx. 10 %
Flame intensity (parameter 954)
Operation with IQRC Ca. 25 µA, display approx. 16 %
Flame intensity (parameter 954)
Required detector current
(with flame)
Permissible detector current
(without flame)
Typical detector current
(with flame)
QRC
Min. 35 µA Max. 5,5 µA 100 µA
The values given in the table above only apply under the following conditions:
- Mains voltage AC 230 V
- Ambient temperature 23 °C
LMV...
sw bl
br
µA DC
+
7541v12/1110
3 54
X10-05
Legend
µA DC DC-Mikroampèremeter an internal resistance of
Ri = max. 5 kς
bl blue
sw black
br brown
Flame supervision
with QRC...
Measuring circuit for
detector current
measurement