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Technical data
General unit data
Environmental
conditions
Flame supervision with
QRB... and QRC...
Measurement circuit for
detector current
Siemens Building Technologies
HVAC Products
Mains voltage
Mains frequency
External primary fuse (Si)
Power consumption
Mounting position
Weight
Degree of protection
Perm. cable lengths
- from terminal 7 to «R»
Detector cable laid separately
Remote reset laid separately
Max. perm. amperage at cos j ³ 0.6
Terminal 1
Terminals 3 and 8
Terminals 4, 5, 6 and 10
Transport
Climatic conditions
Mechanical conditions
Temperature range
Humidity
Operation
Climatic conditions
Mechanical conditions
Temperature range
LMO64...
-
LMO64...
-
Humidity
Condensation, formation of ice and ingress of water are not permitted!
Min. detector current
required (with flame)
QRB...
45 µA
QRC...
70 µA
QRB...
12
LMO...
11
sw
7138v01/0602
bl
+
µA DC
QRB...
As an alternative to detector current measurement, the diagnostic tool OCI400 /
ACS400 can be used. In that case, connection of the DC microammeter is not required.
AC 230 V +10 % / -15 %
50...60 Hz ±6 %
6.3 A (slow)
12 VA
optional
approx. 200 g
IP 40 (to be ensured through mounting)
max. 3 m at a line capacitance of 100 pF / m
max. 20 m at 100 pF / m
20 m
20 m
LMO64.30...
5 A
3 A
1 A
DIN EN 60 721-3-2
class 2K2
class 2M2
-30...+70 °C
< 95 % r.h.
DIN EN 60 721-3-3
class 3K5
class 3M2
-5...+60 °C
-20...+60 °C
< 95 % r.h.
Max. perm. detector current
(without flame)
5.5 µA
5.5 µA
QRC...
12
LMO...
11
1
br
7138v02/0602
bl
sw
+
µA DC
QRC1...
LMO64.31...
5 A
5 A
1 A
Max. possible detector
current with flame (typically)
100 µA
100 µA
Legend
µA DC
DC microammeter
with an internal
resistance of
Ri = max. 5 kW
bl
Blue
sw
Black
br
Brown
CC1N7138en
22.07.2002
5/10
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