1
Description
The ekinex® presence sensor EK-DH4-TP is a wall- or
ceiling-mount Passive Infrared (PIR) motion detector,
for the detection of movement and presence of people
in outdoor spaces with a coverage area of up to 360°.
The detection area can be extended using other sensors
configured as slave devices. An integrated light sensor,
combined with the motion detector, can manage light
switching depending on brightness level as well as pre-
sence. The device has two distinct output channels for
lighting, with independent parameters; the operation can
be automatic or semi automatic. The device is also capa-
ble of maintaining a constant brightness level by control-
ling a dimmable light source.All of the above parameters
can be set by the user either through ETS or by means of
a dedicated IR remote during installation. The device has
two additional HVAC channels, which act in a similar way
as the Light Control channels but without the standby time
and light level dependence. An additional alarm channel
can switch the load on or off depending on the number of
trigger events (movements) detected in a time frame of
configurable duration.
Main features
• Semi-automatic or fully automatic operation
• Two independent Light control channels
•
Two independent HVAC control channels
• One alarm channel
•
An additional device can be used as slave for any of
the channels
• Detection span of 360°, sectors can be masked through
optical shields
•
Adjustable Sensitivity, with “Walk test” to verify detec
-
tion range
• Most parameters can be set from ETS or through an
IR remote
Datasheet STEKDH4TP_EN
Technical data:
• Rated voltage: 24 Vdc (21 - 30 Vdc) supplied by KNX
bus
•
Current consumption (on KNX bus): max 10 mA (opera
-
tion) / 5 mA (Standby)
• Detection range: 360° circular (maskable), up to 9m
diameter at 2.5m mounting height
• Light measurement range: 10..2000 Lux
• Housing, lens and frame in plastic material
•
Safety standards: IEC 61000-6-1 / IEC 61000-6-3 / EN
55014 / EN 50491
Dimensions:
• Body diameter
Ø 60 mm
• Rim diameter
Ø 75 mm
• Total height
78 mm
Environmental conditions:
•
Operating temperature:
- 20 ... + 50°C
•
Environmental protection:
IP55 (Wall mount) /
IP54
(ceiling
mount)
Switching, display and detection elements
The device is equipped with:
• on the rear side, a programming pushbutton
• visible through the plastic lens, a blue programming
LED, a red signalling LED, a PIR sensor, a brightness
sensor and an IR receiver.
Operation
The sensor reacts to the thermal radiation emitted by mo-
ving bodies; the detection area is optically divided in small
sections through a composite lens. A person walking in
the detection area across the sections triggers the sensor.
Brightness measurement
The measurement of the room brightness is carried out
by an integrated light sensor with linear output and optical
filter set on the profile of the human eye. The brightness
value, measured in Lux, can be transmitted on the bus.
Lighting Channels
The lighting channel has two operation modes, Automa
-
tic or Semi-automatic. The automatic mode controls both
switch-on and switch-off; the semi-automatic mode only
controls switch-off after a manual switch-on. The lighting
source can be controlled through two different types of
communication objects: On-Off switch or Absolute dim
-
ming percentage. In automatic mode, a load connected to
a lighting channel will be switched on when movement is
detected and (if desired) the ambient light level is below
a preset brightness value. When no movement has been
detected for a programmable time duration, a stand-by
phase can be entered, during which the light can be dim-
med to a lower intensity; if no further movement is de-
tected, once stand-by time has expired, the light will be
automatically switched off. Both the light level threshold
and stand-by time functions can be disabled if not requi-
red.
HVAC Channel
The HVAC channels act in a similar way as the Light Con
-
trol channels, but without the standby time and the depen-
dence from the light level.
Presence sensor
with 360° detection area
Code: EK-DH4-TP
KNX bus device for movement and presence detection
intended for use in outdoor KNX installations.
