TFA Dostmann 35.1023 Manual De Uso página 39

Remote Rain Volume Sensor
Generally mount the Remote Rain Volume Sensor with its solar cell pointing in a
southerly direction.
The Rain Volume Sensor must be securely mounted to
an exact horizontal surface by means of its mounting
holes in the bottom part of the housing. Prior to
this remove the upper part from the lower
portion by pressing and turning the upper
part clockwise with regard to the bottom
part. Remove the transport protection
from the seesaw in the lower part of the
sensor and check by tilting that the
seesaw can move freely and easily to its
both endpositions.
A cavity in form of a "T" in the bottom part
of the Rain Volume Sensor can be filled
with water and thus allows an exact hori-
zontal alignment without any other
auxiliary means.
Fill a small amount of water into this cavity
and align the bottom part of the sensor
by principle of a spirit-level. After marking
the exact mounting position the water can
be removed. Observe the southerly alignment for the solar cell. By doing this
the short leg of the engraved spirit-level must point to
the north.
In order to reach the best possible remote transmission
(high transmission range) it is recommended not to
mount the Rain Volume Sensor too close to the ground.
Mounting the unit at a height of appr. 1 m also reduces
the danger of pollution (especially the solar cell).
Observing the correct polarity insert the color marked
magnet into the holder.
Important Note!
In order to avoid start-up problems make sure that
the color marked magnet is inserted observing the
correct polarity as shown in the illustration opposite.
After securely screwing the bottom part of the sensor
to the mounting surface replace the upper part as
follows:
spirit level
same water level at all three points
Alignment of the rain sensor. Application of
the spirit level and position of the magnet.
The polarity of the color
marked magnet has to
correspond with the print.
South
direction
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