• Therainsensorcannowbedetachedfromaboveandmovedtotheside
with the cable, and the counter rocker can be removed.
• Cleanthecollectingfunnel,contacts,counterrockeranddrainholeinthe
bottom of the housing to remove any residues.
• Placethecounterrockerbackinitsholder.Indoingso,thecounterrocker
magnet must be at the side facing the cable.
• Placetherainsensorinitsholder.Itwillautomaticallytakeholdofthecoun-
ter rocker. The rain sensor cable and counter rocker magnet must be at the
same side.
• Nowplacethecollectingfunnelontothesensorsupportfromaboveand
latch it into place by turning it clockwise.
• Replacethehousingfrombelowandturnitclockwiseinthesensorsup-
port until it latches into place. In doing so, ensure that the positions of the
housing drain hole and the sensor support line up (the housing drain hole
should be facing outwards).
7.2 Adjustingtherainsensor
The rainfall measuring system is factory-set to a high degree of accuracy, so it
doesnotusuallyneedtobeadjusted.
Adjustmentwillonlybenecessaryinsituationswithextremelystringentrequire-
ments in terms of accuracy.
Before you begin to adjust to the rain measuring sensor, reset any accumulated rain-
fall value to zero, working in the reception station‘s normal display mode (refer to the
relevant operating manual; the entire rainfall display must be set to zero). In addition,
the rainfall must be displayed in „mm“ or „l/m2“ for adjustment purposes.
To perform precise calibration, proceed as follows:
1. Slowly pour 100 ml of water into the rain sensor collecting funnel, spreading the
process out over 10 minutes.
Attention!
Pouring the water in quickly will distort the measurement results! Pour the
water into the funnel slowly enough to ensure that no water accumulates in
the funnel cone at any given point in time.
2. The amount displayed should now be 6.5 l/m2.
3. If a different value from this is displayed, what is known as the rocker value must
be recalculated as follows:
New rocker value = 6.5 x current rocker value
Actual value (as displayed after pouring in water)
The new rocker value must now be entered in the reception station‘s configuration
menu. This must always be entered in ml/rocker stroke.
The factory setting is 295 ml/rocker stroke.