Setting The Detection Range; Setting The Sensitivity - SOMFY 1875141 Manual

Setting the detection range

The upper beam is fixed: it always remains parallel to the ground. The lower beam can be adjusted (see below).
Given that the beams (lower and upper) must be broken simultaneously to trigger an alarm, the detector range
is limited to the range of the lower beam.
Détection !
Detection!
Detection range
Portée de détection
The lower and upper beams are
broken.
1
Set the range by gently sliding the lens in its housing.
(The lower left and right-hand zones can be set
independently).
Ensure that the lens remains parallel with the holder. DO
NOT TWIST IT.
Position/Range look-up table
(Installation height = for example 1 metre)
Maximum range per side
Position
Standard
A
12 m
B
8 m
C
5 m
D
2 m
* The maximum detection range may vary according to the atmospheric conditions.
2
Replace the lens holder in the front cover, aligning
the three marks (X, Y and Z) on each side of the lens
holder with the three notches (X', Y' and Z') on the
front cover, ensuring that the 6 clips are correctly
inserted.

Setting the sensitivity

The sensitivity selection switch has 3 positions:
H (High),
M (Medium) y
L (Low).
The default sensitivity setting is M.
To adjust the sensitivity, select L or H.
If the angle of the beams has been changed, because of an obstacle, the sensitivity must be set to H.
56
No detection! Pas de détection !
Portée de détection Detection range
Only the lower beam is broken.
Variations *
10 to 15 m
6 to 10 m
4 to 8 m
1.5 to 3 m
Pas de détection !
No detection!
Portée de détection Detection range
Only the upper beam is broken.
OUI
YES
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NON !
NO!
X'
X
Y'
Y
Z'
Z
SENS
L
L
M
M
H
H