008483_a_−−_−− p3
IRM270C Instructions for use
The detector reacts to movements by people:
− the passive infrared section (PIR) detects changes in
the infrared energy which is received;
− the microwave section (MW) detects movements.
Extraordinarily reliable detection is made possible
thanks to the intelligent digital signal processing and
system linkage (Matchtec). Only unambiguous and ver-
ified movement signals in the two partial systems will re-
sult in an alarm signal.
The detector reacts with greatest sensitivity to move-
ments that are diagonal to the active zones (direc-
tions shown by arrows, Fig. 1 and 2).
The detector is designed to achieve optimum re-
sponse coupled with the suppression of false alarms.
Nevertheless, it is recommended that the following
points be observed (Fig. 10):
− Do not direct the zones at sources of heat or cold,
nor at points subject to strong sunlight.
− Direct the zones towards uniform references.
Zones which are directed towards heaters (includ-
ing floor heating equipment) can reduce the proba-
bility of detection of movement.
− If it is impossible to avoid positioning the detector
above heaters, you must keep them at a minimum
distance of 1.50m away!
Installation
The detector is intended for use in inside rooms.
Do not remove the printed circuit board from the de-
tector. There is a danger that it may be damaged!
1.
Open the detector (Fig. 3).
2.
Mount the detector on a stable vertical surface.
− Select the height (h) above the floor according to Fig.
1 or 2.
− Corner mounting and 45
°
installation (right / left) are
possible without any accessories (see Fig. 4A).
− Detector must be inclined at an angle of 2
°
when
mounting above 3m in order to detect crawling intru-
ders and to ensure the detection range (see Fig. 4B).
− The cable is introduced through one of the knock-out
points A (see Fig. 5).
3.
Wire the connections as shown in Fig. 7.
4.
For strain relief on the connection cable, pierce the
lug B (Fig. 5) and fix the cable with a cable cleat.
5.
Select the desired settings as shown in the section
on ”Programming”.
6.
Replace the cover, screw it down with the screw pro-
vided (Fig. 3).
Detector breakage/removal monitoring
Fig. 6
If the detector is forcibly removed from the mounting
surface, a sabotage alarm is triggered.
For this, the detector base must be secured with an
additional screw.
Control inputs
Fig. 7
Walktest remote control
Terminal 3
Remote control of the
walktest indicator
. Use switch
DIP1 to select the polarity of the control signal.
Set/unset remote control
Terminal 4
Remote control of the
set/unset
state. Use switch DIP4
to select the polarity of the control signal.
An open control input is HIGH (internal pull-up); for
control with active HIGH, a resistor (typ. 2k
Ω
, max.
47k
Ω
/detector) must be switched to 0V.
Programming
You can use switches DIP1 to DIP4 to select the follow-
ing functions:
DIP ON
OFF
(default)
Function
1
LOW (0V)
HIGH (+12V)
Potential for
walktest ON
at terminal 3
2
see ”PIR−Detection
PIR−Sensitivity of motion
3
see PIR−Detection
sensitivity” table
PIR−Sensitivity of motion
detection
4
LOW (0V)
HIGH (+12V)
Potential for
unset
at ter-
minal 4
5
see ”MW−Sensitivity
MW−Sensitivity of motion
6
see MW−Sensitivity
Settings” table
MW−Sensitivity of motion
detection
7
PIR
PIR and MW
Detector system function
for
disarmed
8
−−
−−
not used
PIR−Detection sensitivity
DIP2 DIP3 Sensitivity /
Range
Application
ON
ON
High values
18m
Stricter detection re-
quirements
OFF OFF
Standard (default)
18m
Residential, offices
ON
OFF
Increased stability
18m
Rooms with low
sources of interference
OFF ON
Harsh environ-
ment
Reduced range.
Rooms with consider-
able interference ef-
fects
Setting note for PIR−Detection sensitivity
If the longest wall in the room is less than 5m, do not
use the «High values» sensitivity setting!
MW−Detection sensitivity
DIP5 DIP6 Sensitivity
Range (approx.)
ON
ON
High
25m
OFF OFF
18m
ON
OFF
12m
OFF ON
Low
6m
Setting note for MW−Detection sensitivity
For adjusting the MW−range start with low sensitivity
(see chapter commissioning).
Detector system function
DIP7
In the
disarmed
mode, the MW-Section is switched off if
DIP7 = ON. In this mode, the detector operates as a
passive infrared detector (PIR).
If the detector is operated with an armed/disarmed line,
we recommend DIP7 = ON (MW-Section OFF when
disarmed
). For
walktest
, the MW detection system is
switched back on.
LED indications
Control line state
Detector
state
LED LED
Arming,
terminal 4
Walktest,
terminal 3
state
red
yel-
low
Change to
set
any
Memory reset
−
−
Set
any
Memory set
−
−
Walktest OFF
Alarm stored
Unset
MW−Detection
Unset
Walktest ON
Self-test at
start-up
Walktest alarm
flashing
lit
for 2.5s
slow
flashing
on
Memory displays
Set memories are shown in the
unset
with
walktest OFF
state.
The
alarm memory
(LED flashes red) shows the result
of the last
set
period. This memory is always reset when
the system is next in the
set
state.
Self-test
The self-test is carried out whenever the supply voltage
is first applied.
A fault is indicated by the red LED lit constantly (this is
only visible when the walktest is switched on).
Commissioning
1.
Switch on the supply voltage.
During the
self-test
and the start-up phase with
walktest
ON,
the red LED flashes slowly (for about 20 seconds).
− When the red LED goes out, the detector is ready.
− If the red LED lights continuously, there is a fault in the
detector.
2.
Carry out the walk test, i.e. check the complete moni-
toring area to make sure the alarm triggers:
The microwave part must detect movements through-
out the complete active area
→
yellow LED.
Walk upright across the active area at a rate of about 1
step per second in the direction shown by the arrows
(Fig. 1 or 2) and pause.
The detector must also trigger an alarm if the active
area is crossed near to its edges.
Sealing the detector
Fig. 3
If sealing of the detector is prescribed, apply an adhe-
sive seal over the gap between the base of the detector
and the cover.
Maintenance
Check the function of the detector regularly (at least
once per year) − carry out a
walktest
, check for dirt and
inspect the fixture.
Troubleshooting
Detector does not react
− Check whether the mirror is inserted.
− Check the supply voltage and polarity.
No alarm display on the detector
− Check programming, control signals and polarities.
No alarm
− Check the alarm relay.
− Check the alarm line.
Continuous or intermittent alarm
− Check the sensitivity setting.
Switch the detector to walk test, mask the detector win-
dow with a sheet of cardboard and wait 30 seconds:
− If the alarm indication disappears:
− ascertain the sources of alarm in the active area,
− remove the cause of the alarm,
− check the evaluation mode,
− reposition the detector or tilt it through 2
°
.
− If the yellow LED lights up even though there is no
movement:
− MW section is possibly too sensitive, or interference
is coming from outside the detection zone;
− track down possible sources of interference and
eliminate them;
− re-position the detector.
Insufficient range
− Check the mounting height and inclination (Fig. 1 or
2).
− Walk at right angles to the active area!
− Check the IR window for soiling.
− Check the detection sensitivity setting.
Options
Curtain mirror IRS272
Fig. 2
The IRS272 curtain mirror has overlapping active
zones forming a monitored area to provide secure mon-
itoring against intrusion. At installation heights above
3m, mount the detector with a downward inclination of
2
°
.
Changing the mirror:
Remove the wide-angle mirror from the cover using a
No. 1 screwdriver (Fig. 8) and replace it with an IRS272
curtain mirror.
Use the PIR−sensitivity settings «High values»,
«Standard» or «Increased stability».
Mounting bracket IRUM20, IRUM30
Fig. 9
The mounting brackets IRUM20 (wall-mounting) and
IRUM30 (ceiling mounting) enable the detector to be ro-
tated through
±
45
°
and tilted t10
°
/−15
°
.
The monitored zone can differ from that shown in
Fig. 1 or 2, depending on local conditions and the
setting of the mounting bracket.
Approvals
CE
compliance
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
R&TTE 1999/5/EC
compliance
. . . . . . . . . . . . . . . . . . . . . . .
C−Tic
compliance
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
It is essential to comply with national approval con-
ditions which relate to the use of the product.
Technical data
Supply voltage
8.0 to 16.0V
DC
(12V nom.)
. . . . . . . . . . . .
− max. ripple (0...100Hz)
2.0Vpp
. . . . . . . . . . . . . . . . . . . . .
− voltage monitoring
alarm at <7.2
±
0.5V
DC
. . . . . . . . . . .
Current consumption (at 8...16V
DC
):
− quiescent
7.5mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
− max. (with LED on)
13mA
. . . . . . . . . . . . . . . . . . . . . . . . . .
Microwave (MW)
10.525GHz
. . . . . . . . . . . . . . . . . . . . . . . . .
Alarm output:
− semiconductor relay
opens at alarm / fault
. . . . . . . . .
− alarm holding time
2...3s
. . . . . . . . . . . . . . . . . . . . . . . . . . .
− contact load rating
30V
DC
/ 100mA (ohmic load))
. . .
− series resistance
<35
Ω
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tamper contact
30V
DC
/ 100mA (ohmic load)
. . . . . . . .
Control inputs
LOW
≤
1.5V / HIGH
≥
3.5V
. . . . . . . . . . . . .
Walking speeds:
− wide angle mirror (standard)
0.2...4.0m/s
. . . . . . . . . . .
− curtain mirror IRS272 (option)
0.2...4.0m/s
. . . . . . . . . .
Ambient conditions:
− operating temperature
−20
°
C...+55
°
C
. . . . . . . . . . . . .
− storage temperature
−20
°
C...+60
°
C
. . . . . . . . . . . . . . .
− air humidity (EN60721)
<95%rH,
. . . . . . . . . . . . . . . . . . .
non condensing
− EMC resistance
up to 2GHz 30V/m
. . . . . . . . . . . . . . . . .
− housing protection EN60529, EN50102 IP41 / IK02
Details for ordering
IRM270C
A5Q00007825
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IRS272 Curtain mirror (4 pcs)
571 733
. . . . . . . . . . . . . . .
IRUM20 Mounting bracket, wall
562 247
. . . . . . . . . . . . .
IRUM30 Mounting bracket, ceiling
562 250
. . . . . . . . . .
Anti-tamper seal
503 251
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
