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IRS-100
Order Number 04.2940
ELECTRONICS FOR SPECIALISTS
ELECTRONICS FOR SPECIALISTS
Infrared Reflection Light Barrier
The instructions are intended for qualified
installers of the light barrier. Please read the
instructions carefully prior to installation and
keep them for later reference.
1 Applications
This reflection light barrier is designed to detect
persons or objects, e. g. for security surveillance of
entrance doors, gates and driveways, or for control
purposes. The light barrier operates with infrared
light at a reflector distance of 20 cm to 14 m. When
the light beam is interrupted on its way from the
transmitter (10) via the reflector (1) to the receiver
(9), a relay with switching contact will respond. Due
to its weatherproof housing (IP 66), the light barrier
is also suitable for outdoor installation.
2 Important Notes
The reflection light barrier corresponds to all relevant
directives of the EU and is therefore marked with
•
The unit is weatherproof, however, not completely
waterproof. Therefore, do not immerse it in water.
•
Do not operate the light barrier in areas of extreme
temperatures (admissible ambient temperature
range −20 °C to +55 °C).
•
For cleaning do not use aggressive detergents or
chemicals.
•
No guarantee claims for the light barrier and no
liability for any resulting personal damage or ma-
terial damage will be accepted if the light barrier is
used for other purposes than originally intended,
if it is not correctly installed, or if it is not repaired
in an expert way.
If the light barrier is to be put out of oper-
ation definitively, take it to a local recycling
plant for a disposal which is not harmful to
the environment.
3 Installation
Notes concerning the place of installation:
–
When using several light barriers, install them in
such a way that they will not interfere with one
another.
–
For objects with a reflective surface, the light bar-
rier should be installed in such a way that the ob-
jects will pass through the infrared light beam at an
angle, otherwise they may not be detected.
8,5 mm
1
0,2 – 14 m
ELECTRONICS FOR SPECIALISTS
–
For outdoor installation, choose a place of instal-
lation where it is not likely that false alarms (e. g.
triggered by plants moving in the wind or animals
running around) will occur.
3.1 Mounting and connection
1) For the time being, provisionally install the reflec-
tor (1) with a screw and the transmitter/ receiver
unit (5) with its mounting support in such a way
that they will face each other. Observe the re-
quired distance between them: minimum distance
20 cm and maximum distance 14 m.
2) Connect the transmitter/ receiver unit to a sup-
ply voltage. You will find the core configuration
of the connection cable (6) in the figure below.
As a power supply, an AC voltage or DC voltage
of 12 – 48 V can be used (the polarity does not
matter when the light barrier is connected to a
DC voltage source).
3) Connect a unit for evaluating the interruption of
the light beam (e. g. signal device, alarm system,
.
counting device) to the relay contacts shown in
the figure below. Make sure that the maximum
contact rating of ⎓ 30 V/ 3 A and ~ 48 V/ 3 A will
not be exceeded.
3.2 Aligning the light barrier
To indicate the operating state, the transmitter/
receiver unit is equipped with two LEDs which will
facilitate the alignment of the light barrier. The yel-
low LED (7) will light up if the light barrier is correctly
aligned. The red LED (8) will light up if the transmit-
ter/ receiver unit and the reflector are not correctly
aligned to each other, if the reflector and the trans-
mitter/ receiver unit are too far apart, or if the light
beam is interrupted.
1) Open the cover plate (4).
2) The openings of the trimming potentiometers are
covered by means of an adhesive strip so that no
moisture will enter the opening. Remove the ad-
hesive strip; protect the adhesive layer against any
impurities so that the strip can be attached again
after the adjustment has been made.
3) Set the trimming potentiometer "Sensing Range"
(2) to the right stop with a small screwdriver.
4) Align the reflector in such a way that the yel-
low LED will light up when the light beam is not
interrupted.
5) Also realign the transmitter/ receiver unit, if re-
quired.
2
3
5
29 mm
39 mm
MONACOR INTERNATIONAL GmbH & Co. KG • Zum Falsch 36 • 28307 Bremen • Germany
Copyright
by MONACOR INTERNATIONAL. All rights reserved.
©
ELECTRONICS FOR SPECIALISTS
ELECTRONICS FOR SPECIALISTS
Power supply
4
brown
⎓12– 48V
or
~
12–48 V
blue
Relay
n.o.
black
grey
n.c.
white
6
2 m
ELECTRONICS
6) After optimum alignment of the light barrier,
fasten it definitively.
3.3 Adjusting the sensitivity
The trimming potentiometer "Sensing Range" (2)
allows to adjust the desired sensitivity of the light
barrier for responding to an interruption of the light
beam.
With a low luminous intensity (Min.), the light bar-
rier will be triggered even when very small objects
interrupt the light beam. With a high luminous inten-
sity (Max.), the light barrier will ignore small objects.
1) Set the trimming potentiometer for the sensitivity
(2) to the left stop.
2) If the yellow LED (7) does not light up yet,
slowly turn the trimming potentiometer until it
starts lighting up.
3) Move the object to be detected through the
light beam at the place where it will usually pass
through it. At this moment, the red LED (8) should
light up instead of the yellow one.
4) Slowly turn the trimming potentiometer clockwise
until the yellow LED lights up again. With larger
objects, the LEDs will not change again until the
potentiometer is at the right stop.
5) The sensitivity adjustment recommended for a re-
liable operation is the mid-position between the
two potentiometer positions determined under 2)
and 4) where the LEDs changed (or the respective
stop if there was no change of LEDs).
6) In the range of 5 to 100 ms, the potentiometer
"Re sponse Time" (3) allows to adjust how long
the light beam must be interrupted so that the
relay will re spond.
7) When the adjustment has been made, seal the
potentiometer openings with the adhesive strip
and close the cover (4).
4 Specifications
Reflector distance: . . . . . . .0.2 – 14 m
Relay
Response time: . . . . . . . .adjustable
from 5 to 100 ms
Contact rating: . . . . . . . .~ 48 V/ 3 A
⎓ 30 V/ 3 A
Ambient temperature: . . . .−20 °C to +55 °C
Power supply: . . . . . . . . . . .12 – 48 V, ~ or ⎓
Current consumption: . . . . .65 mA ±10 %
Class of protection: . . . . . . .IP 66
7
8
9
10
20,5 mm
Subject to technical modification.
A-0413.99.05.11.2017
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