Detection zone
The
reliable occupancy de-
tection
of the BLS sensors
considerably depends on the
number, condition and arrange-
ment of the lens segments.
With three pyro sensors and a
detection zone of 360°, con-
sisting of 11 levels with 1320
switching zones, even the
smallest movements in the
close range
(2 m radius
around the sensor) and walking
movements in the
long-dis-
tance range
(up to 12 m) are
recorded. In this manner, even
larger offices can be monitored
with only one sensor.
If specific areas are to be ex-
cluded from detection, the de-
tection zone can be deliberate-
ly adjusted by applying shrouds
(see Reach setting section).
Optimum installation site:
The sensor is only suitable for
ceiling installation in rooms. It
should always be installed so
that seated individuals see the
sensor at a distance of approx.
1 m in front of them (see Fig.).
Reliability of detection in the
close range is greatest in this
position. Walking individuals
are still detected within the
long-distance range.
13
1 m
360
°
1
2
3
4
1 m
1 m
2 m
2 m
12 m
12 m
0
Sensor
Close-up range (radius 2 m)
Seated
Long-distance range (radius 12 m)
Safety warnings
GB
Disconnect the power sup-
ply before attempting any
work on the sensor!
During installation, the
electric power cable to be
connected must be volt-
age-free. Therefore, switch
off the power first and use
a voltage tester to make
sure the wiring is off circuit.
Installing the sensor in-
volves work on the mains
power supply. This work
must therefore be carried
out professionally in accor-
dance with the applicable
national wiring regulations
and electrical operating
conditions (VDE 0100).
The signal provided on the
1–10 V control output is a
functional extra-low volt-
age and not a safety extra-
low voltage (SELV). Conse-
quently, appropriately insu-
lated leads are to be used
for wiring.
How it works / basic function
The LuxMaster series of in-
frared sensors control the
lighting, e.g. in offices,
schools or public buildings
depending on persons present
(motion detection) and sur-
rounding brightness. The light
sensor incorporated in the
sensor constantly measures
ambient light level and com-
pares it with the brightness
setting adjusted on the sensor
(BLS / BLS T 20 – 1300 lux
and BLS D/BLS DF 100 – 1300
lux). If the surrounding bright-
ness is sufficient, the lighting
is not switched ON. If the sur-
rounding brightness is below
the adjusted brightness set-
ting, a movement in the room
causes the light to be
switched ON. A choice of 4
versions is available:
BLS - switching ON and OFF
of the light independently of
occupancy and daylight.
Light only with presence in the
room. Once the surrouding
brightness reaches the set the-
oretical value, the lighting is au-
tomatically switched OFF again.
BLS T - semi-automatic oc-
cupancy detector. ON manu-
ally. OFF automatically, when
light is no longer needed.
The user switches the light ON
manually (classroom function)
using a switch to be incorporat-
ed (break-contact button). By
briefly pressing and immediate-
ly releasing the button / switch
(approx. 0.2 – 1 sec.), the volt-
age supply is briefly interrupted
and the BLS T transfers to stan-
dard sensor mode. If the room
is left without operating the but-
ton again, the light goes out
once the set time value has
elapsed or once the set twilight
value is exceeded. If the button
is briefly pressed again on leav-
ing the room (approx. 0.2 –
1 sec.), the light switches OFF
automatically and does not
switch ON again automatically.
If the button is pressed for
longer (> 2 sec.), the BLS is
completely free of voltage, per-
forms a self-test on release and
the lighting goes ON for the set
time.
BLS D – dimming of the light-
ing depending on presence
and daylight
The sensor simultaneously de-
tects the difference between the
set theoretical value and the
surrounding brightness and
raises the brightness of the
lighting until the set theoretical
value is achieved in the room.
Changes in the surrounding
brightness are constantly de-
tected by the sensor and are
adjusted such that with occu-
pancy, a constant brightness
prevails in the room.
BLS DF – dimming of the
lighting depending on occu-
pancy and daylight – optional-
ly with remote control
With this sensor, it is also possi-
ble to alter the light level (bright-
ness setting) with an infrared re-
mote control. The lighting can
therefore be conveniently
dimmed to the desired light lev-
el, for example during slide
shows or when using a projec-
tor.
The modifications in the light
level made with the remote
control can be conveniently re-
set to the light level adjusted on
the sensor using the reset func-
tion (simultaneous pressing of
both buttons (+) and (–)) .
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PK Elektronik Vertriebs GmbH, E-Mail: [email protected], Internet: www.pkelektronik.com
