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Safe operation may no longer be possible if the device:
•
shows signs of external damage,
•
no longer functions,
•
has been stored under unfavourable conditions
or
•
has been exposed to severe transport conditions.
If not used for any length of time (e.g. when in
storage), remove the batteries to avoid damages
caused by leaking, etc.
10.2
Cleaning the rain sensor
Depending on the location, leaves, dirt particles trans-
ported by the wind, sand, branches, etc., may get into the
rain sensor's collecting funnel (A). Larger items may block
the flow of rainwater. Sand can also accumulate in the
counter rocker: as the amount increases, this causes the
measurement results to be less accurate. Consequently,
the rain sensor must be cleaned from time to time; this
must be done at least once a year, however.
•
Loosen the collecting funnel (A) of the rain sensor
(B) by slightly turning it clockwise and lift it off.
•
Loosen the cover of the rain sensor by slightly
turning it clockwise and slide it down.
•
Detach the rain sensor from above, move it to
the side with the cable and remove the counter
rocker.
•
Clean the collecting funnel, contacts, counter
Maintenance and cleaning
57
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