KROHNE ALTOSONIC V Installation EN - Manual (Page 13)

04/2012 www.krohne.com 13
ALTOSONIC V
ELECTRICAL INSTALLATION 3
3. Electrical installation
3.1 Overview of connections
The figure below shows an overview of the electrical connections of a complete installation.
Be aware of the units mounted in the potential explosive hazardous area.
3.2 Installation location and wiring considerations
Cable entries
To conform with protection category requirements, observe the following recommendations:
Do not kink the cables
Provide a water drip point (U bend in cable)
Conduits
The described standard version of ALTOSONIC V is equipped with cable glands for the use of
harmonized cable. In countries where the electrical codes prescribe conduits, the mounted
cable entries shall satisfy the IP protection class, e.g. NEMA 4 or 4X.
Installation and wiring
 When electrical codes require conduits, they must be installed in such a manner that the
protection class of the box remains valid. As this equipment is always used in HAZLOC
environment (Ex-zone), stopping boxes shall be used.
 Separate conduits shall be used for mains and other wiring.