Balluff BOS R090K-U-RX10-S49 Series, User Manual

www.balluff.com

7

english

4 

Product description

4.3 

Operating and display elements

4.3.1  Operating mode switch (receiver only)

Setting

Meaning

L

Light on / NO contact

D

Dark on / NC contact

Tab. 4-1:  Operating mode switch

4.3.2  Sensitivity setting (receiver only)

The rotary switch can be used to configure the sensitivity 

and range of the receiver.

NOTICE

Product damage

If the sensitivity setting is turned past the end stop, the 
setting function can be damaged.

►

Do not turn the potentiometer past the mechanical 
end stop at 270°.

Setting

Meaning

Turn clockwise

Increase sensitivity.

Turn 

counterclockwise

Reduce sensitivity.

Tab. 4-2:  Sensitivity setting

4.3.3  LED indicators

LED

Meaning

Yellow

1)

Operating indicator: The LED lights 

up as soon as the transmitter is 

active.

Green

2)

Stability indicator: The LED lights 

up as soon as the sensor is 

operational and is operating in a 

safe range.

1)

 Transmitter only

2)

 Receiver only

Tab. 4-3:  LED

4.1 

Construction

BOS  R090K- _ U-RX10-S49
BOS  R090K- _ U-RX10-S75

(3.1)

7.4

2-M3

3.4

10.8

3.2

8.2

11.8

19.2

(3.1)

17.1

19.5

31.5

1.2

25.4

3.4

10.8

(3.1)

0.1

(13.9)

20.2

(3.1)

7.4

Optical axis

Lens

Yellow LED

1)

Green LED

2)

Setting the operating mode

Sensitivity setting

2)

BOS  R090K- _ U-RX10-02

(3.1)

7.4

2-M3

3.4

10.8

3.2

8.2

11.8

19.2

(3.1)

17.1

19.5

31.5

1.2

25.4

3.4

10.8

(3.1)

0.1

(13.9)

20.2

(3.1)

7.4

1)

 Transmitter only

2)

 Receiver only

Fig. 4-1:  Dimensions, design and function

4.2 

Function

Through-beam sensors are sensors with separate 

transmitter and receiver units, which must be

aligned to each other on both sides of the detection path. 

When an object interrupts the light beam, the receiver 
switches, i.e. the output signal changes.

BOS R090K-_U-RX10-S49/S75/02

Optoelectronic sensors – Through-beam sensors