2
will remain on for at least 30 minutes providing people are
present. It then switches off when the brightness is adequate.
The light is forced off after a preset time delay if the room
was (previously) vacated. If artificial lighting is switched off
manually. the lighting remains switched off as long as the
room is occupied. The lighting switches again automatically
after the time delay has expired.
Fully or semi-automatic
Lighting control via the presence detector operates fully
automatically for increased comfort or semi-automatically for
greater energy savings. In „fully automatic“ the lights switch
on and off automatically. Light switching has to be completed
manually in „semi-automatic mode“. The lighting is always
switched off automatically.
Pulse function
Time delay can be set to pulse for controlling existing stair-
case light timer switch. To do so, the light output produces
every 10 seconds a pulse of 0.5 seconds duration if people
are present or it is dark.
5. Detection area
The circular detection area of theRonda presence detec-
tor covers a large detection area, and permits a good room
coverage with many applications. Note that seated and
moving persons can be detected in differently-sized areas.
The recommended installation height is 2.0 m – 6.0 m. As
installation height increases, the sensitivity of the presence
detector decreases. Walking motions are necessary from ins-
tallation heights of 3.5 m and the detection areas of several
detectors should overlap in the marginal zones. The detection
range is reduced as the temperature increases.
Seated persons:
The details relate to smallest movements at table height
(approx. 0.80 m).
Moving persons:
At installation heights of between 5 and 10 m, the extent and
distance between the active and passive zones increase.
t
r
t
r
Installation
height (A)
Moving persons
Frontal (r)
Moving persons
Across (t)
Seated persons:
(s)
2,0 m
28 m
2
Ø 6 m
380 m
2
Ø 22 m
16 m
2
Ø 4,5 m
2,5 m
38 m
2
Ø 7 m
415 m
2
Ø 23 m
24 m
2
Ø 5,5 m
3,0 m
50 m
2
Ø 8 m
452 m
2
Ø 24 m
28 m
2
Ø 6 m
3,5 m
50 m
2
Ø 8 m
452 m
2
Ø 24 m
38 m
2
Ø 7 m
4,0 m
50 m
2
Ø 8 m
452 m
2
Ø 24 m
–
–
5,0 m
50 m
2
Ø 8 m
452 m
2
Ø 24 m
–
–
6,0 m
50 m
2
Ø 8 m
452 m
2
Ø 24 m
–
–
10,0 m
50 m
2
Ø 8 m
491 m
2
Ø 25 m
–
–
All figures are guidance values.
Brightness measurement
The presence detector measures artificial light and day
-
light that is reflected directly below the detector. The light
measurement area maps a rectangle of about 2 x 3.5 m at
table height. The installation site is a reference point for the
lighting level. Direct light influences the light measurement.
Avoid placing floor lamps or suspended lighting directly below
the detector. If the brightness measurement is deactivated,
the Channel A light only switches depending on the presence
(brightness switching value set to „measurement off“ or
potentiometer brightness switching value set to „on“ via the
remote control).
Innen 2 m Fenster
Suitable lamps
The presence detector is designed for the operation of fluore
-
scent, compact fluorescent, halogen and incandescent lamps
as well as LEDs. The maximum number of switchable lights is
restricted due to the high inrush current levels of the EBs and
LED drivers. The use of an external contactor helps with large
loads. All switched loads must be properly suppressed
6. Installation
Ceiling installation
The installation diameter is 72 mm (drill diameter 73 mm).
