21
UK
In case of horizontal installation: As a result of design requirements a small quan-
tity of the medium always remains in the measuring channel after switching off the
pump�
6 Electrical connection
The unit must be connected by a qualified electrician�
The national and international regulations for the installation of electrical
equipment must be adhered to�
Voltage supply according to EN 50178, SELV, PELV�
► Disconnect power�
► Connect the unit as follows:
4
3
2
1
BK: black
BN: brown
BU: blue
WH: white
BN
WH
BK
BU
4
1
3
2
OUT2
L+
L
OUT1
Colours to DIN EN 60947-5-6
Sample circuits:
2 x positive switching
2 x negative switching
L
L+
3 BU
4 BK
2 WH
1 BN
L
L+
3 BU
4 BK
2 WH
1 BN
1 x positive switching / 1 x analogue
1 x negative switching / 1 x analogue
L+
L
3 BU
4 BK
2 WH
1 BN
L+
L
3 BU
4 BK
2 WH
1 BN
