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Operation & maintenance
Make sure that the lens is kept clean and dry. The
lens can be cleaned with a slightly damp cloth. In the
event of faults or operational disruption beyond the
normal user settings LUX, TIME, LRN, SENSITIVITY,
contact an authorised electrician.
9 RF wireless information:
The movement sensor has an integrated RF transmitter
model STM110 (EnOcean). The RF transmitter signal
has a frequency of 868 MHz, with a transmission rate of
recurrence of 1x per 100 seconds, and a transmission
output of less than 10 mW. This guarantees an RF
environment that is typically 100 times less than
conventional wireless systems.
RF transmitter distance:
As an RF signal involves electromagnetic
oscillations/waves (of a certain field strength), these
are suppressed on the way to the receiver. The RF
signal's field strength weakens proportionally by the
square of the distance between transmitter and
receiver.
However, this natural reduction of the field strength
as a function of distance is not the only suppression
that affects the distance. Metal parts, e.g. in
connection with reinforcements to wall and ceiling
elements, metal foil in damp barriers or UV/colour
filters through metal foil will all reflect, distort or
suppress the RF signal on its way to the receiver.
Below is a list (approximate) of penetration rates for
commonly used building materials:
The penetrative strength of RF signals:
Materials
Penetration
Wood, plaster and
glass without surface foil ........................ 90...100%
Brick, MDF and chipboard panels ......... 65...95%
Concrete reinforcement ......................... 10...80%
Metal, aluminium panels, etc. ................ 0...10%
In practice this means that the choice of materials in
premises has a decisive influence on the distance
between transmitter and receiver. As a guideline the
following distances can be used.
RF signal distance/penetration:
Visible distance between transmitter and receiver:
Typically 30 m in walkways, up to 100 m in large,
open rooms, e.g. sports halls.
Plaster/wooden walls:
Typically 30 m distance through max. 5 walls.
Brick/aerated concrete walls:
Typically 20 m distance through max. 3 walls.
Steel-reinforced walls/ceilings (floor structures):
Typically 10m distance through max. 1 ceiling/wall.
The angle at which the RF signal hits the wall has an ef-
fect on the field strength. The ideal angle is a right angle.
See fig. 9b .
Fire walls, lift shafts and staircases. Should be
treated as areas that cannot be penetrated by the RF
signal.
If there is any doubt, check the distance in the
premises before securing to the building.
Other sources of noise for wireless RF signal
transmission:
Devices that also operate using high-frequency
signals, such as computers, audio/video systems,
mobile phones, electronic transformers, connection
units, frequency converters and other RF
transmitters/receivers are all considered to be
sources of noise for the wireless RF signal. We
therefore recommend a minimum distance to such
devices of 0.5 metres.
RF transmitter rate of recurrence:
The movement sensor transmits an RF telegram as a
function of an event-controlled process, but also in a
fixed, time-controlled process.
Measurement principle and telegram delivery:
a) Delivery of an event-controlled process can take
place by activating the button labelled "LRN", which
causes the internal microprocessor to start, the
status of the movement sensor to be registered
(activated or not) and an RF telegram to be
transmitted immediately to the receiver.
b) Delivery of a time-controlled process. At an
interval 1x per 1 sec. (T_wake up) the internal
microprocessor starts, the status of the movement
sensor is registered, and if there is an activation an
RF telegram is transmitted immediately.
If there is no change, for every 100 event-controlled
processes an RF telegram will be transmitted.
Default setup of STM110 transmitter:
T_wake up: 1, T_event: 100
T_send = 1 wake up x 100 event = 100 sec.
Description of the RF telegram:
EnOcean Profile:
Profile 0b000111 – Occupancy Sensor
Type 0b0000001 – Occupancy Sensor 1
Manufacturer ID 0b00000000011
DATA BYTES
DB_1:
PIR off
0...127
PIR on
128...255
DB_0.BIT_3:
Learn button
0 = Teach-in telegram
1 = Data telegram
For sensor using the previous EXMC coding, please
refer to Sensor type 41-301
10 Technical data:
Input:
Supply voltage .......................... 230Vac ±10% 50Hz.
Alternative supply ..................... 24Vac/DC ±10%.
Inherent consumption .............. 230Vac – 1 W or
24V – 0.5VA.
Performance:
RF system transmitter .............. EnOcean STM110.
Transmitter frequency .............. 868 MHz.
Transmitter output .................... <10 mW.
Transmitter rate of recurrence .... On standby once per
approx. 100 sec.
Immediately when
PIR activation timer
set.
RF range ................................... 100 metres in open
space/free line of
vision, approx. 30
metres in buildings,
see "RF wireless
information".
Lux range .................................. 10...1000 Lux.
Lux range off ............................. LUX is turned
towards max to
position off, no
daylight blocking.
Hysteresis ................................. > +10%.
Cut-out delay ............................ 1...30 mins, with
daylight blocking
10 sec....30 mins,
no daylight blocking.
Sensitivity ................................. Selected manually.
Activation indicator on/off ......... Selected manually.
Test modes ............................... Selected manually.
Protection class ........................ IP 20.
Ambient temp. .......................... -5°C...+50°C.
Cable bush ............................... 2 x Ø12 mm.
Approval:
CE according to ........................ EN 60669-2-1
Note:
The Sensor is marked with the EnOcean ID
6(10)
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