Liquid detectorGENERAL DESCRIPTION
The RA/209 electronic liquid detector provides ideal
protection against flooding.
If the detector is required to detect the presence of
water only after it has reached a depth of 6 / 7 mm,
or if it is being installed on a particularlydamp
surface, the tracks must be interrupted at points 1
and 2, as indicated.
Alternatively, if the detector is installed in an
extremely damp environment and it is critical to
adjust the sensitivity even at minimum levels, the
track of the coil on the printed circuit must be
interrupted at points 3 and 4 as shown.
TESTING
Before being made available for sale, our detectors undergo a
burnout test during which they are connected to the power
supply and subjected to various disturbances and endurance
tests.
TECHNICAL S P E C I F ICAT I O N S
Operating voltage 12- 30 V.dc.
Average consumption mains power 3.5 mA at 27 V.dc.
Consumption in alarm mode with red LED 20 mA at 18 V.dc.
°C 05 + -01-erutarepmet gnitarepO
Socket wiring diagramSize in millimetres
2
3
1
4
+
-
+
-
Detector
line
27 V.dc.
mains power
Maximum
sensitivity
Ø 6
44
64
10
36
98
25
26
7
6
52
Printed
circuit
Coil
S S NC NA C - +
5
RA/209
DS80SD2B-001 LBT80283 IS7115-AA
ELKRON S.p.A.
Via Cimarosa, 39 – 10154 Torino (TO) – Italy
Tel. +39 (0)11.3986711 – Fax +39 (0)11.3986790
www.elkron.it - mail to: info@elkron.it