DOL 20SCR, Technical User Manual, Page: 3 / 4

Technical User Guide
DOL 20SCR www.dol-sensors.com 3
4 User Guide
When there is material in front of the sensor, the output is in the reference position OFF. When the material dis-
appears, the timer, starts, and the output will change to ONafter 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.
ON OFF
Sensor
LED
Contact
ON
ON
OFF
OFF
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 20SCR 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
V DC
20 - 280
20 - 280
Frequency
Hz 47 - 63
Max. current (Ie)
mA 500
Direct connection to Ue (current >>
500 mA) without damage to the
sensor
Times > 10
Min. ON current (Im)
mA RMS/DC < 10 (Ue = 20 - 90)
mA RMS/DC < 6 (Ue = 90 - 280)
OFF current (Ir)
mA RMS/DC < 3 (Ue = 20 - 90)
mA RMS/DC < 1 (Ue = 90 - 280)
Voltage drop (Out) (current > 20
mA)
mA
RMS/V DC
< 6
Time delay, start-up
ms < 150
Time delay, ON*
ms < 200
Time delay, OFF* (adjustable)
s 0.1 - 600