Flame Supervision With Qrc... (Only Lme23…); Green Led For Operational Status Indication; Measuring Circuit For Detector Current - Siemens LME11 series Manual

Technical data (cont´d)
Flame supervision
with QRC...
(only LME23...)
Green LED for opera-
tional status indication
Measuring circuit for
detector current
12/23
Building Technologies
HVAC Products
Detector current required
(with flame)
QRC... Min. 70 µA
The values given in the table above only apply under the following conditions:
- Mains voltage AC 230 V
- Ambient temperature 23 °C
Detector current in operation:
- Flame signal instable
- Green LED flashing
QRC...
The values given in the table above only apply under the following conditions:
- Mains voltage AC 230 V
- Ambient temperature 23 °C
2 1 12 LME...
7101v02/1005
br
bl sw
+
µA DC
QRC1...
As an alternative to detector current measurement, the OCI400 / ACS400 diagnostics
tool can be used. In that case, the DC microammeter is not required.
Perm. detector current
(without flame)
Max. 5.5 µA
Detector current in operation:
- Flame signal stable
- Green LED steady on
< 45 µA
Legend
µA DC DC microammeter with an internal resistance of
Ri = max. 5 kΩ
bl Blue
sw Black
br Brown
Possible detector current
with flame (typically)
Max. 100 µA
> 45 µA
CC1N7101en
29.06.2006