Technical User Guide
2
DOL 40R
1 Product description
DOL 40R series is designed for general detection of feed, grain and solids in tanks, silos and containers. The
powerful integrated relay means that it can control many functions directly.
The sensor's electronics are completely embedded in a thermoplastic casing. This achieves a very high resis-
tance to moisture and other external influences in aggressive environments. The sensor is CE, C-UL and UL
approved and has a high immunity to noise from electric communication (e.g. from mobile phone) and tran-
sients (e.g. from motors and contactors). This makes the sensor very reliable and dependable in operation.
2 Mounting guide
140107
DOL 40R
DOL 40R
10 mm
The sensor is mounted so that at least 10 mm of the
sensor end is free.
The DOL 40R series in a smooth design is mounted
efficiently in a special gland, additional accessory item
number 140107.
DOL 40R-G
The DOL 40R-G series with M30 thread is mounted in
a ø30 mm hole and is tightened with a locknut.
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.
Supply voltage is connected to the blue and brown wire.
The load is connected in series with the relay contact of the
sensor.
STOP
by activating the sensor: Use the black wires 1 and 3.
START
by activating the sensor: Use the black wires 1 and 4.
NOTE
! The internal relay is in position NC when the supply
voltage is connected and the sensor is activated - wire 1 and 4
are connected.
