Eberle EM 524 89 Assembly And Operating Instructions Manual - Sensor Assembly
Sensor assembly
The ice and snow sensor ESF 524 001 (5 core) is assembled as follows.
The snow and ice sensor is mounted
outside
the heated area (see figs. 2 and 3 on
page 16).
The sensor must be assembled so that it is directly exposed to the weather conditions
(snow, rain, melt water (see figs. 4 and 5 on p. 17).
The sensor’s steel plate is set in the ground during the construction phase and the
wooden mould is placed on top. The steel plate
must
be used to fix the sensor to
guarantee the impermeability of the fixing hole. If the steel plate cannot be inserted due
to constructional reasons, then a washer with a nut
must
be used. This is the only way in
which the impermeability (press fit) in the bolt hole can be guaranteed. Note the red
information tag!
A protective metal pipe must be installed flush to the wooden block for the connection
lead. Seal the pipe ends to avoid any foreign bodies (tar, concrete, etc) clogging the
protective tube.
After applying the top road surface, the wooden mould is removed and the sensor is fixed
on the steel plate using the M 6 x 35 screw.
Ensure that the sensor cannot, for example, be covered by snow being cleared outside
the heated area. Any foreign bodies or materials can impair the operation of the sensor.
Any existing gaps must be filled with, for example, silicone, tar, mortar or depending on
the composition of the surface. Max. casting temperature 80 °C (179 °F).
The sensor’s connection lead, default length 15 m (50 ft.), can, in accordance with VDE
0100, be extended up to a length of 50 m (164 ft.). with a cross section of 1.5mm
2
(20
gauge)
It is recommended that a numbered cable is used for the extension. This is very helpful,
for example, when trying to locate faults during a malfunction.
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