KROHNE DK 46-47-48-800 ATEX II2G Ex i EN - Manual (Page 11)

ELECTRICAL CONNECTIONS
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DK46 - DK800
www.krohne.com 08/2012 - 4000430903 AD DK46/800 II2G R04 en
4.3 Connecting cable
Select the connecting cables for the intrinsically safe circuits according to the valid wiring
standard (e.g. EN 60079-14). Make sure that no residual current can form between different
intrinsically safe circuits of the variable area flowmeter. Lay cables so as to ensure that there is
sufficient distance between surfaces of the measuring unit and the connecting cable.
4.4 Earthing and equipotential bonding
If the device is not adequately grounded electrostatically by way of the process piping, make an
additional ground connection 1 by way of the ground connection. The location of the ground
connection on the back rail is shown below. This connection merely ensures electrostatic
connection of the device and does not meet the requirements for equipotential bonding.
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