elv WS 250 Edition Bedienungsanleitung Seite 55

Depending on the location, leaves, particles of dirt carried by the wind, small twigs and similar
can enter the cone collector of the rain gauge. Large parts can clog the flow-through!
Sand can also collect in the count rocker which will affect the measuring result negatively as it
increases.
For this reason, the rain gauge should be cleaned at least once a year.
Proceed as follows:
• open the lower part of the rain gauge. To do this, turn the lower part approx. 1 cm to the left
until you can let the metal nips slide downwards.
• remove the upper cone collector by turning it first of all a small distance to the right; then lift it
off to the top.
• the rainfall sensor (the plastic part with the two brass pins and cable) can now be removed.
Make a note of the orientation; the connection cable of the rainfall sensor can be
found at one side.
• Remove the count rocker.
Make a note of the orientation; there is a small magnet at one side of the count
rocker.
• Now clean the components of the rain gauge. Think also of the drain hole in the plastic lower
part of the rain gauge which you have pushed downwards at the metal pipe.
• To reassemble, place the count rocker first of all in the holder.
For this, the magnet of the count rocker has to
belocated on the side which points to the cable.
The two lower trapezoid pins have to be inserted
into the lower part of the holder correctly.
Only in this manner is it guaranteed that the count
rocker can be moved easily.
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