KROHNE OPTIBAR DP 7060 C EN - Manual (Page 34)

4
ELECTRICAL CONNECTIONS
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OPTIBAR DP 7060 C
www.krohne.com 04/2014 - 4003292001 - MA OPTIBAR DP 7060 C R01 en
4.2.7 Cable shield and grounding
If a shielded cable is necessary, connect the cable shield on both ends to the grounding potential.
In the device, the cable shield must be connected directly to the internal ground terminal.
The ground terminal outside on the housing must be connected to the grounding potential with
low impedance.
DANGER!
In hazardous areas, the grounding is carried out according to the installation instructions.
CAUTION!
Significant potential differences exist inside galvanization plants as well as on vessels with
cathodic corrosion protection. A two-sided shield grounding can cause unacceptably high shield
currents as a result.
CAUTION!
The metallic and wetted parts (process connection, cap flange, measuring cell and separating
diaphragm etc.) are conductive connected with the inner and outer ground terminal on the
housing.
.book Page 34 Friday, May 2, 2014 10:25 AM