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Photoelectric Sensors
Diffuse reflectiv with background supression BOS 5K-..-LH12-..
Installation
Caution!
Do not look into the laser beam.
The sensor must be installed as to prevent a direct line of
eyesight to the light source, even during operation and so
that the specification warning label is easily visible.
No additional protective measures are necessary for opera-
tion. The transmitter and the laser light barrier comply with
laser class 1 in accordance with IEC 60825-1 "Safety of laser
products" (2007).
–
The installation location must be free of vibration, dust,
poisonous vapors, water, oil and chemicals.
–
The sensor may not be installed outdoors and not next
to inductive devices or heat sources.
–
The sensor may not be exposed to direct sunlight or
other direct light.
–
Max. tightening torque for the screws is 0.5 Nm.
–
The max. cable length is 100 m with a conductor
cross-section of 0.3 mm
.
2
–
Do not route the connection cable parallel to high-
voltage and motor cables.
–
Do not exceed a tightening torque on the connector
securing ring of 0.5 Nm.
Receiver axis
Emitter axis
Receiver axis
Emitter axis
Fig. 2: Dimensions
Wiring diagramms
S75
S49
Fig. 3: Connection diagram, pinouts
7
Displays and controls
Fig. 4: Displays and controls
1 Potentiometer
6-turns potentiometer. Used for setting the background
supression (BGS) respectively range of the receiver.
2 Yellow LED
Output function indicator: The LED comes on as soon as
the output is active.
3 Light-on/dark-on switch
Used for setting the output function light-on or dark-on
4 Green LED
Stability indicator: The LED comes on as soon as the
sensor is operational and is working within a reliable range.
Setting
Range setting
1. Place the target inside the beam path.
2. Position the sensor at the desired distance.
3. Turn the potentiometer counter
clockwise (shortest range) so
that the yellow LED turns off.
4. Turn the potentiometer slowly
clockwise (there may be more
than 1 turn) until the yellow LED turns on. The object is
now detected (position a).
5. Remove the target: The yellow LED turns off.
6. Continue turning the potentiometer clockwise (there
may be more than 1 turn) until the yellow LED turns on:
The background is detected (position b). If no back-
ground is detected, position b overlaps with the max.
setting.
7. Turn the potentiometer to the middle position c bet-
ween a and b. The sensor is now ready.
Note: If the sensor is set to light-on switching, the display
responds the opposite way.
Switch function setting
To set light-on:
Turn switch to full CW
To set dark-on:
Turn switch to full CCW
Photoelectric Sensors
Diffuse reflectiv with background supression BOS 5K-..-LH12-..
Technical Data
Optical
Operating distance
20...300 mm
Setting range (BGS)
40...300 mm
Light type
laser red
Laser class
1
Wave lenght l
650 nm
Light spot diameter typ.
ø 0.5 mm at
260 mm distance
Smallest detectable object
ø 0.2 mm at 3 m
distance
Maximum power of the laser diode as component: 7 mW
Electrical
Supply voltage U
10...30 V DC
B
No-load current I
< 30 mA
O
Effective operating current I
< 100 mA
e
Current draw
35 mA max.
Voltage drop U
at I
< 1.5 V
e
d
Turn-on delay
< 250 µs
Turn-off delay
< 250 µs
Switching frequency f
2 kHz
Hysteresis
< 10%
Output dep. on model
PNP or NPN
Short circuit protected
yes
Reverse polarity protected
yes
Interference protected
yes
Output function
switchable
BGS and range setting
6-turns potentiometer
Mechanical
Connection type depending on
M8-connector, 4-pin
model
M8-connector, 3-pin
cable 3 x 0.2 mm
2
Housing material
PBT
Active surface material
PMMA
Indicator material
PC
Tightening torque
0.5 Nm (connector
and screws)
Housing dimensions
Sensor with cable
32,7x10,8x19,5 mm
Sensor with connector
43,5x10,8x19,5 mm
Weight
< 50 g
Displays receiver
Output function indicator
yellow LED
Stability indicator
green LED
Ambient
Ambient temperature T
–10... +55°C
a
Enclosure rating per IEC 60529
IP 67
Ambient light rejection
5 kLux
Reference material
white, 90% remi-
sion, 200 x 200 mm
2
www.balluff.com
Light spot diameter (typical)
Object distance
Fig. 5: Light spot dimensions depending on distance to the
object
Balluff GmbH
Schurwaldstrasse 9
73765 Neuhausen a.d.F.
Germany
Phone + 49 7158 173-0
Fax +49 7158 5010
balluff@balluff.de
www.balluff.com
8
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