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Detector current measurement
LOK16... / RAR...
LGK16... / QRA53... /
QRA55...
LGK16... / detector
electrode
Legend
18/20
Siemens Building Technologies
HVAC Products
The measuring instrument must be connected between the detector and terminal 22
(+pole to terminal 22).
Use the KF8832 measuring instrument (not suited for continuous operation).
There is no self-checking while measurements are made.
The KF8832 is not required when using the QRA5x.D...
The measuring instrument must be connected between terminal 24 and the detector
electrode (+pole to terminal 24).
Burner control
LGK16... base
1
1
2
2
5
22
3
23
4
15
With QRA5x.C...
100 µA
+
A
22
+
470 µF/25 V
With RAR...
25 µA
+
22
A
RAR...
+
24
7785v02/0497
A
Ammeter
RAR...
Selenium photocell detector
ION
Ionization probe
Terminals in
the control panel
Mains cable 3 x 1.5 mm
Single-wire coaxial cable
(e.g. RG62)
Screening
max. 60 m
7785v04/1001
Burner
Terminals in the
burner compartment
2
1
1
2
2
5
5
QRA5...
3
3
4
4
Cable AGM19
7785g01e/0102
With QRA5x.D...
300 µA
+
22
A
7785v01/1096
+
470 µF/25 V
With ionization
100 µA
ION
+
24
A
7785v03/0903
CC1N7785en
15.10.2003
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