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7.2 - Transmitter installation and operation
in Scenario "B"
7.2.1 - Installation
To install the transmitter in a scenario type "B", it must be
positioned in the environment in which the ambient lighting
is to be optimised. The transmitter can beplaced on any
type of surface (table, furniture, etc.) in a point in which the
sensors are not disturbed by draughts of hot air due to the
excessive vicinity of radiators or similar devices. Its position
must also take into account the radio range, and conse-
quently the distance from the automation (for radio range
see the chapter "Technical specifications"). The device can
be placed directly on the surface or fixed to the latter by
means of the relative suction cup. It can also be inserted in
other optional supports, such as those shown in fig. C.
7.2.2 - Automatic command operation
If the transmitter is installed in scenario "A", the "Mode"
function must be programmed as described in chapter 10,
selecting one of the following options for automatic com-
mand operation.
• "Mode 3" – (fig. 8) Selection of this option enables auto-
matic delivery of commands to the shutter, based exclu-
sively on data read by the rear brightness sensor (the
option disables the front brightness sensor and the tem-
perature sensor).
The "mode 3" option sets the system to operate as follows:
with the shutter completely open, on increase of brightness
intensity to exceed the upper threshold, the shutter starts
to close and only stops when brightness returns to within
the hysteresis zone.
In the same way, when brightness decreases and falls
below the lower threshold, the shutter starts to open and
only stops when brightness returns to within the hysteresis
zone.
To sum up, "Mode 3" envisages a shutter open and partial
closing cycle, to maintain constant brightness levels within
the environment, and within the limits set by the lower and
upper threshold values. To set the space between the two
thres holds, to see the programming of the "Brightness hys-
teresis" function in the "Settings" menu (chapter 10).
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• "Mode 5" – (fig. 9) If this option is selected, the "Season"
function must also be programmed, as described in chap-
ter 10 ("Parameters" menu). In this parameter, the user
must select the option "Summer" or "Winter" according to
the climate and period of the year in which the transmitter
is used.
"Mode 5" enables automatic delivery of commands to the
shutter, based on data read by the front brightness sen-
sor the temperature sensor and settings of the "Season"
function (this option disables the rear brightness sensor).
The "mode 5" option sets the system to operate as follows:
– with "Summer" mode set and the shutter completely
open;
a) - if the temperature is below the set threshold, when
brightness increases and rises above the upper thresh-
old, the shutter starts to close and only stops when
brightness returns to within the hysteresis zone. In the
same way, when brightness decreases and falls below
the lower threshold, the shutter starts to open and only
stops when brightness returns to within the hysteresis
zone.
b) - if the temperature is above the set threshold, the
shutter closes completely.
– with "Winter" mode set and the shutter completely
open;
a) - if the temperature is above the set threshold, when
brightness increases and rises above the upper thresh-
old, the shutter starts to close and only stops when
brightness returns to within the hysteresis zone. In the
same way, when brightness decreases and falls below
the lower threshold, the shutter starts to open and only
stops when brightness returns to within the hysteresis
zone.
b) - if the temperature is below the set threshold, the
shutter opens completely.
7.2.3 - Using manual commands in Scenario "B"
The user can move the shutter manually at any time by
means of the keys p, ■, q, and can set automatic com-
mands to pause (paragraph 8.1).
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