Balluff BOS 18K Series

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BOS 18Kx-xx- SERIES

INSTRUCTION MANUAL

CONTROLS

OUTPUT LED (BOS 18K…PD/PE/XA/QC/QD/RE/TB/FR/1N1R, BLE

18K..)

The yellow LED ON indicates that the NO output status is closed.

STABILITY LED (BOS 18K...PD/PE/QC/QD/FR, BLE 18K...PP)

The green LED ON indicates that the received signal has a reserve

greater than 30% compared to the output switching value.

POWER ON LED (BLS 18K...1P)

The green LED indicates that the sensor is operating.

POTENTIOMETER (BOS 18K...QD/PD/PE/TB/FR, BLE 18K...PP)

The potentiometer can be used to adjust sensitivity; the operating

distance increases turning the potentiometer clockwise.

WARNING: The potentiometer rotation is limited to 270° by a

mechanical stop.

Do not apply excessive torque when adjusting (max 40 Nmm).

INSTALLATION

The sensor can be fixed by means of the M18x1 threaded body through a  18mm

hole, using the specific washer and the two CH.24 nuts enclosed (1.5Nm maximum

tightening torque).

Alternatively, the sensor can be mounted

through the two housing’s holes using two

screws (M3x22 or longer) and washer.

Amongst the various possible solutions, we

suggest to choose the combination that offers

the best visibility of the signalling LEDs and the

easiest access to the potentiometer.

Wide range of accessories available: 22mm

nuts, h=8mm, (2Nm maximum tightening

torque) guarantee an improved torque and

various orientable fixing brackets ease the

sensor positioning (please refer to the

accessories listed in the general catalogue).

The operating distance is measured from the front surface of the sensor lens.

Only diffuse type: To improve the detection, the object has to be moved closer or further

away from the front surface of the sensor lens.

In case of lateral translation, the object must move as indicated in the figure.

CONNECTIONS

The connections are complaint to the EN 60947-5-2.

BOS/BLS

10 … 30 Vdc

NC OUTPUT

BROWN

WHITE

BLACK

BLUE

NO OUTPUT

0 V

BLE

10 … 30 Vdc

TEST +

BROWN

WHITE

BLACK

BLUE

TEST -

0 V

M12 CONNERCTOR

DIMENSIONS

N°.2 Ø3.8

2.5

3.8

STABILITY LED

M18x1

1.5

3.5

1.5

3.8

14.5

N°.2 Ø3.8

TRIMMER

M18x1

Ø4

RADIAL VERSION

TRIMMER

OUTPUT LED

STABILITY LED

OUTPUT LED

STABILITY LED

without trimmer

M O D E L S

with trimmer

AXIAL VERSION

CABLE VERSION

M12

6°

14.5

without trimmer

M O D E L S

with trimmer

TECHNICAL DATA

BOS 18KF (Axial version) BOS 18KW (Radial version)

Power supply: 10 … 30 Vdc

Ripple: 2 Vpp max.

Current consumption

(output current excluded):

35 mA max.

Outputs: NO and NC; PNP or NPN

Output current: 100 mA max.

Output saturation voltage: 2 V max.

Response time: 0.5 ms (2 ms BLE/BLS)

Switching frequency: 1KHz (250 Hz BLE/BLS)

Indicators: output-LED (yellow) ( BLS)

stability-LED (green) (BOS 18K...QC/QD and BLE)

POWER ON LED (green) (BLS)

Setting: sensitivity potentiometer (BOS 18K...PD/PE/QC/QD/TB, BLE 18K...)

Operating temperature: -25 … 55 °C

Operating distance (typical values): BOS 18KF-...RE: 0.1…5m on R1

BOS 18KF-...QD: 0.1…4.5m on R1

BOS 18KF-...PE: 0…70cm

BOS 18KF-...XA: 0…10cm

BOS 18KF-...PD: 0…40cm

BOS 18KF-...1N1R: 0,5…10cm

BLE/BLS 18KF-...: 0…20m

BOS 18KF-...FR: depends on fiber

BOS 18KF-...TB: 0.1…1,7m on R1

BOS 18KW-...QC: 0.1…3m on R1

BOS 18KW-...PD: 0…40cm

BOS 18KW-...XA: 0…8cm

BOS 18KW-...1N1R: 0…8cm

BLE/BLS 18KW-...: 0…15m

BOS 18KW-...TB: 0.1…1,7m on R1

Emission type: red (660nm) (BOS 18..QC/QD/TB/FR/1N1R) / infrared (880nm) (BOS 18..RE/PD/PE/XA; BLS18..1P)

Ambient light rejection: according to EN 60947-5-2

Housing material: PBT

Mechanical protection: IP67

Connections:

2 m cable  4 mm / M12 - 4 pole connector

Weight: 75 g. max. cable vers. / 25 g. max. connector vers.

SETTING

Setting of BOS 18K...RE

Position the sensor and reflector on opposite sides.

Find the points where the yellow LED (OUT) is switched ON and OFF in

both vertical and horizontal positions and fix the sensor in the centre

between these points.

Setting of BOS 18K...QC/QD/TB

Position the sensor and reflector on opposite sides.

Turn the sensitivity potentiometer to the maximum position.

Moving the sensor both vertically and horizontally, determine the power

on and off points of the yellow LED (OUT) and then mount the sensor in

the middle of the points defined. Optimum operation is obtained when

the green LED (only BOS 18K...QC/QD) is ON and the yellow LED is

OFF.

QC/QD If necessary reduce sensitivity in order to detect

very small targets. In order to improve alignment, repeat

the procedure detailed above whilst progressively

reducing the sensitivity.

TB Turn the sensitivity trimmer counterclockwise until the yellow LED

turns ON (pos.A). Turn slowly the trimmer again clockwise until the

yellow LED turns OFF (Operating condition, pos.B).

Setting of BLE/BLS 18K.../BOS 18…FR (with P/R fibre optics)

Position the sensors on opposite sides.

Turn the sensitivity potentiometer to maximum: moving the sensor both

vertically and horizontally, determine the power on and off points of the

yellow LED (OUT) and then mount the sensor in the middle of the points

defined. Optimum operation is obtained when the green LED is ON and

the yellow LED is OFF.

If necessary, reduce sensitivity using the potentiometer, in order to

detect very small targets. In order to improve alignment, repeat the

procedure detailed above whilst progressively reducing the sensitivity.

Setting of BOS 18K...PD/PE/FR with proximity fibre

Turn the sensitivity potentiometer to minimum: the green LED is ON, the

yellow LED is OFF. Position the target to detect in front of the sensor or

of the fibre terminals. Turn the sensitivity potentiometer clockwise until

the yellow LED turns ON (Target detected state, pos.A).

Remove the target, the yellow LED turns OFF.

Turn the sensitivity potentiometer clockwise until the yellow LED turns

ON (Background detected state, pos.B).

The potentiometer reaches maximum if the background is not detected.

Turn the potentiometer to the intermediate position C, between the two

positions A and B. The green LED must be ON.

Setting of BOS 18K...XA/1N1R

The operating distance range of these sensors is fix. Please consider

this feature when positioning.

TEST FUNCTION (BLS)

The TEST+ and TEST- inputs can be used to inhibit the emitter and

verify that the system is correctly operating.

The receiver output should switch when the test is activated while the

beam is uninterrupted.

The inputs activating voltage range is 10 … 30 Vdc.

Balluff GmbH

Schurwaldstrae 9

73765 Neuhausen a.d.F. Deutschland

Tel.: +49 (0) 71 58/1 73-0

Fax +49 (0) 71 58/50 10

E-Mail: balluff@balluff.de

www.balluff.com

Nr./No. 826 220 D/E

Ausgabe/Edition 1108;

Änderungen vorbehalten/Subject to modification

Ersetzt Ausgabe/Replaces edition 0412

MIN

MAX

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Do you have a question about the Balluff BOS 18K Series and is the answer not in the manual?

The Balluff BOS 18Kx-xx- SERIES is a range of photoelectric sensors designed for various industrial automation applications, offering both axial and radial versions, as well as cable and connector options. These sensors are primarily used for object detection, presence sensing, and positioning tasks.

Function Description

The BOS 18Kx-xx- SERIES sensors operate by emitting light and detecting its reflection or interruption. They are available in different operating principles, including diffuse, retro-reflective, and through-beam, catering to a wide range of detection scenarios.

Output LED (BOS 18K...PD/PE/XA/QC/QD/RE/TB/FR/1N1R, BLE 18K..): A yellow LED indicates the status of the NO (Normally Open) output. When the output is closed, the LED is ON.

Stability LED (BOS 18K...PD/PE/QC/QD/FR, BLE 18K...PP): A green LED illuminates when the received signal has a reserve greater than 30% compared to the output switching value, indicating stable operation.

Power ON LED (BLS 18K...1P): A green LED confirms that the sensor is powered and operating.

Potentiometer (BOS 18K...QD/PD/PE/TB/FR, BLE 18K...PP): This feature allows for sensitivity adjustment. Turning the potentiometer clockwise increases the operating distance. A mechanical stop limits rotation to 270°, and excessive torque (max 40 Nmm) should be avoided during adjustment.

Test Function (BLS): For BLS models, TEST+ and TEST- inputs are provided to inhibit the emitter and verify system functionality. The receiver output should switch when the test is activated with an uninterrupted beam. The activating voltage range for these inputs is 10 ... 30 Vdc.

Important Technical Specifications

The BOS 18Kx-xx- SERIES sensors are robust and designed for industrial environments.

Power Supply:

Voltage: 10 ... 30 Vdc
Ripple: 2 Vpp max.
Current Consumption (output current excluded): 35 mA max.

Outputs:

Type: NO and NC; PNP or NPN
Output Current: 100 mA max.
Output Saturation Voltage: 2 V max.

Performance:

Response Time: 0.5 ms (2 ms for BLE/BLS models)
Switching Frequency: 1KHz (250 Hz for BLE/BLS models)

Indicators:

Output-LED: Yellow (BLS)
Stability-LED: Green (BOS 18K...QC/QD and BLE)
Power ON LED: Green (BLS)

Setting:

Sensitivity Potentiometer: (BOS 18K...PD/PE/QC/QD/TB, BLE 18K...)

Environmental:

Operating Temperature: -25 ... 55 °C
Mechanical Protection: IP67

Emission Type:

Red: 660nm (BOS 18..QC/QD/TB/FR/1N1R)
Infrared: 880nm (BOS 18..RE/PD/PE/XA; BLS18..1P)
Ambient Light Rejection: According to EN 60947-5-2

Housing Material: PBT

Connections:

2 m cable Ø 4 mm
M12 - 4 pole connector

Weight:

Cable version: 75 g max.
Connector version: 25 g max.

Operating Distance (typical values):

BOS 18KF (Axial version):
- RE: 0.1...5m on R1
- QD: 0.1...4.5m on R1
- PE: 0...70cm
- XA: 0...10cm
- PD: 0...40cm
- 1N1R: 0.5...10cm
- BLE/BLS: 0...20m
- FR: depends on fiber
- TB: 0.1...1.7m on R1
BOS 18KW (Radial version):
- QC: 0.1...3m on R1
- PD: 0...40cm
- XA: 0...8cm
- 1N1R: 0...8cm
- BLE/BLS: 0...15m
- TB: 0.1...1.7m on R1

Usage Features

The sensors are designed for straightforward installation and adjustment.

Installation:

M18x1 Threaded Body: Can be fixed through an Ø 18mm hole using the provided washer and two CH.24 nuts (1.5Nm max tightening torque).
Housing Holes: Alternatively, the sensor can be mounted using two M3x22 (or longer) screws and washers through the housing's holes.
Optimal Positioning: It is recommended to choose a mounting solution that offers the best visibility of the signaling LEDs and easy access to the potentiometer.
Accessories: A wide range of accessories, including 22mm nuts (h=8mm, 2Nm max tightening torque) and orientable fixing brackets, are available for improved torque and flexible sensor positioning.
Operating Distance: Measured from the front surface of the sensor lens.
Diffuse Type Specific: For diffuse sensors, moving the object closer or further away from the front surface of the sensor lens can improve detection. Lateral translation of the object should follow the indicated figure for optimal performance.

Connections:

The connections comply with EN 60947-5-2.
BOS/BLS:
- BROWN (1): + 10 ... 30 Vdc
- WHITE (2): NC OUTPUT
- BLACK (4): NO OUTPUT
- BLUE (3): 0 V
BLE:
- BROWN (1): + 10 ... 30 Vdc
- WHITE (2): TEST +
- BLACK (4): TEST -
- BLUE (3): 0 V
M12 Connector: Pin assignments are clearly indicated (1, 2, 3, 4).

Setting Procedures:

BOS 18K...RE (Retro-reflective): Position sensor and reflector opposite each other. Find the points where the yellow LED (OUT) switches ON and OFF in both vertical and horizontal positions, then fix the sensor in the center.
BOS 18K...QC/QD/TB (Retro-reflective): Position sensor and reflector opposite each other. Turn sensitivity potentiometer to maximum. Move sensor vertically and horizontally to determine ON/OFF points of the yellow LED (OUT), then mount in the middle. Optimum operation is achieved when the green LED (QC/QD only) is ON and yellow LED is OFF.
- QC/QD Specific: Reduce sensitivity to detect very small targets. Repeat the procedure with progressively reduced sensitivity to improve alignment.
- TB Specific: Turn sensitivity trimmer counterclockwise until yellow LED turns ON (pos.A). Slowly turn clockwise until yellow LED turns OFF (Operating condition, pos.B).
BLE/BLS 18K.../BOS 18...FR (with P/R fibre optics): Position sensors opposite each other. Turn sensitivity potentiometer to maximum. Move sensor vertically and horizontally to determine ON/OFF points of the yellow LED (OUT), then mount in the middle. Optimum operation is achieved when the green LED is ON and yellow LED is OFF. Reduce sensitivity with the potentiometer if necessary to detect very small targets, repeating the procedure with progressively reduced sensitivity for alignment.
BOS 18K...PD/PE/FR (with proximity fibre): Turn sensitivity potentiometer to minimum. Green LED is ON, yellow LED is OFF. Position target in front of sensor/fibre terminals. Turn sensitivity potentiometer clockwise until yellow LED turns ON (Target detected state, pos.A). Remove target, yellow LED turns OFF. Turn sensitivity potentiometer clockwise until yellow LED turns ON (Background detected state, pos.B). If background is not detected, potentiometer reaches maximum. Turn potentiometer to intermediate position C, between A and B. Green LED must be ON.
BOS 18K...XA/1N1R: These sensors have a fixed operating distance range, which should be considered during positioning.

Maintenance Features

The sensors are designed for reliability and minimal maintenance.

Robust Construction: PBT housing and IP67 protection ensure durability in harsh industrial environments.
Warning for Potentiometer: Do not apply excessive torque (max 40 Nmm) when adjusting the potentiometer to prevent damage.
Compliance: Connections are compliant with EN 60947-5-2, ensuring standard and reliable electrical integration.

The Balluff BOS 18Kx-xx- SERIES provides a versatile and dependable solution for various sensing applications, combining robust design with user-friendly installation and adjustment features.