Technical User Guide
2
DOL 20SCR
1 Product description
DOL 20SCR is a capacitive sensor for detection of loose and solid materials.
The sensor has a 2-wire connection (ON or OFF), which is protected against higher current (Ie) than specified,
incl. connection / short-circuit directly to supply voltage.
The product is suitable together with contactors, relays and similar within the agricultural and industrial sectors.
The mechanical design makes DOL 20SCRideal for integration into applications with limited space.
2 Mounting guide
Measurement through plastic material:
The sensor with mounting clip can be used for plastic types with
a minimum of moisture absorption.
Fit the sensor so that it is protected from the build-up of dust and
the impact of water on the detection area of the sensor, including
condensation.
If there is significant wear, the sensor should be mounted behind
a wear plate made of a suitable plastic material.
The sensor is not side sensitive, but to avoid incorrect detection
as a result of uncertainty with regard to mounting, it is best to
keep the sensor away from any metal components, see the di-
mensions in figure
(5 mm gap).
3 Installation guide
Installation, servicing and troubleshooting of all electrical equipment must be carried out by quali-
fied personnel in compliance with the applicable national and international standard EN 60204-1
and any other EU standards that are applicable in Europe.
The sensor must be connected as per the diagram
LED indication
Sensor status
LED OFF
Sensor is OFF
LED flashing
Sensor is OFF and ON delay is active
LED ON
Sensor is ON
If the max. current (Ie) is exceeded, the sensor will try to change from OFF to ON 6 times, at the same time as
quick pairwiseYellow LED flashes occur.