10/24
Building Technologies Division CC1N7153en
21.09.2016
Technical data (cont´d)
LAL1 with LAL2 * / LAL3 * with
QRB QRC1 QRB RAR9
Min. detector current required at AC 230 V 95 µA 80 µA 8 µA 6,5 µA
Max. permissible detector current with no
flame
12 µA 12 µA 0.8 µA 0.7 µA
Max. detector current that can occur 160 µA 130 µA 35 µA 45 µA
Instrument’s +pole To terminal 23 To terminal 23 To terminal 22 To terminal 22
Length of detector cable
In the same cable as the
control lines
Max. 30 m --- Not
permitted
---
Separate cable in cable duct Max. 1000 m --- 20 m 30 m
3-core cable --- Max. 1 m --- ---
2-core cable for the detector line (bl, sw);
separate single-core cable for the live
conductor (br)
--- Max. 20 m --- ---
Shielded cable (e.g. RG62, shield insulated) --- --- 200 m RAR9: 100 m
Shield --- --- To terminal 23 ---
* To comply with requirement of EN 298 clause 8.5 «Surge immunity test», for cable lengths above
10 m appropriate filter elements would have to be used. Experience has shown that filters are
sometimes not necessary for normal operation even for cable lengths above 10 m.
Detector current measurement
7153v01/0814
2322
LAL1...
1
swbl br
µA DC
+
7153v05/1206
22
7153v02/0814
Flame supervision
Measuring circuit for
detector current
measurement
To Next Page
Loading...
Need help?
General
