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Technical User Guide

DOL 20R

www.dol-sensors.com

3

LED indication

Sensor status

LED ON

Relay activated (NC) – output OFF

4 User Guide

When there is material in front of the sensor, the output is in the reference position NO. When the material dis-
appears, the timer, starts, and the output will change to NCafter the set delay.
The status of the sensor is indicated with a yellow LED.

The sensor sensitivity and delayed disconnection can be adjusted on two trimmers.

Relay activated (NC) Relay in default position (NO)

Sensor

LED

Contact

ON

ON

OFF

OFF

NO

NC

Delayed disconnection:

fixed delay 

or

 delay can be adjusted on the trimmer.

Delayed connection:

fixed delay 

or

 delay can be adjusted on the trimmer.

Sensitivity:

fixed distance 

or

 Distance can be adjusted on the trimmer.

MaxRun-timer:

DOL 20R Settings on the trimmer: Off, Period 1, Period 2

5 Maintenance

If the sensor is located in a particularly dirty environment, it may be necessary to clean the area around the
sensor.

Otherwise, no additional maintenance is required.

6 Technical data

Electrical

Rated voltage (Ue)

V AC

90-250

Frequency

Hz

50-60

Consumption (max.)

W, 230 V AC

0.9

Rated relay current at 250
V AC

A RMS

A RMS

0.5, Inductive

1, Resistive

Time delay, start-up

ms

< 300

Time delay OFF

s

0-600*

Time delay ON

s

1*

Indication for output ON (if
installed)

Yellow LED

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