Siemens LMO14 Series, Руководство пользователя

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Building Technologies Division CC1N7130en
Infrastructure & Cities Sector 22.08.2013
Technical data (cont´d)
Detector current
required
(with flame)
Perm. detector
current
(without flame)
Possible detector current
with flame
(typically)
QRB... ¹) Min. 45 µA Max. 5.5 µA 100 µA
QRC... ¹) Min. 45 µA Max. 5.5 µA 70 µA
Detector current in operation:
- Flame signal instable
- Green LED flashing
Detector current in operation:
- Flame signal stable
- Green LED steady on
QRB... ¹) <45 µA >45 µA
QRC... ¹) <45 µA >45 µA
¹) The values given in the table above only apply under the following conditions:
- Mains voltage depending on execution AC 120 V or AC 230 V
- Ambient temperature 23 °C
QRB... QRC...
12
11 LMO...
bl
µA DC
+
QRB...
7130v01/0700
sw
12 11 LMO... 1
sw bl
br
µA DC
+
QRC1...
7130v02/0700
Legend
µA DC DC microammeter
with an internal
resistance of
Ri = max. 5 k
:
bl Blue
sw Black
br Brown
As an alternative to detector current measurement, the Interface OCI400 / with PC
software ACS400 / ACS410 can be used. In that case, the DC microammeter is not
required.
Flame supervision with
QRB... or QRC...
Green LED for
operational status
indication
Measuring circuit
for detector current