Operating Instructions
4
3. Electrical Connection
The connection of the microwave barrier takes place according to the figure.
Power supply 24 V
3
4
6
7
8
9
10
11
12
+ ~
– ~
Trans 24 V
Transmitter GND
Re 24 V
Receiver GND
220 V, 0,2 A
50 W, 60 VA
Fig. 4: Transmitter
Fig. 6: DIN Rail electronic
A normal installation cable can be used for the 2-wire connection line to the transmitter or the receiver.
Fig. 5: Receiver
To detect levels of materials with low bulk density respectively with a low dielectric coefficient reliably, the
installation of transmitter and receiver can be done as shown in the drawing below.
In this type of installation the metallic wall on the opposite side of the bin can be used for the reflection of
the microwave.
The arrangement of transmitter and receiver mustn’t be exactly parallel to each other in this installation,
because in that case the signal of the transmitter is not reflected to the receiver. The installation should be
slightly angled.
According to the rule arriving angle = emergent angle a slightly angled positioning, depending on the
distance to the opposite wall, is necessary.
The distance covered by the microwave in the shown installation is nearly twice as long as it is in a face to
face installation. The installation of the equipment on one side of the bin is also an advantage in case of
shortage of space.
Round Wall (metallic)
Tr
ansmitter
Receiv
er
▲
▲
▲
▲
▲
▲
Rectangular wall (metallic)
Tr
ansmitter
Receiv
er
▲
▲
▲
▲
▲
▲
