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Building Technologies Division
CC1N7138en
18.05.2016
Technical data
(cont´d)
Required detector current
(with flame)
Perm. detector current
(without flame)
Possible detector current
with flame (typically)
QRB...
¹)
Min. 45 µA
Max. 5.5 µA
Max. 100 µA
QRC...
¹)
Min. 70 µA
Max. 5.5 µA
Max. 100 µA
¹)
The values given in the table above only apply under the following conditions:
- Mains voltage depending on execution AC 230 V
- Ambient temperature 23 °C
Detector current in operation:
- Flame signal instable
-
Green signal lamp (LED) flashing
Detector current in operation:
- Flame signal stable
-
Green signal lamp (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 230 V
- Ambient temperature 23 °C
QRB... QRC...
12
11
LMO...
bl
µA DC
+
QRB...
7138v01/0602
sw
12
11
LMO...
1
sw
bl
br
µA DC
+
QRC1...
7138v02/0602
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 OCI400 interface with ACS410
PC software can be used. In that case, connection of the DC microammeter is not
required.
Flame supervision with
QRB... and QRC...
Green signal lamp
(LED) for indication of
operating state
Measurement circuit for
detector current
