KROHNE DK 37-H250 M8 ATEX II2G Ex i EN - Manual (Page 13)

ELECTRICAL CONNECTIONS
4
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DK37/M8 - H250/M8
www.krohne.com 09/2013 - 4000760402 MA DK37 M8 AD II2G R02 en
Cable entries / Blanking plugs
The variable area flowmeter is equipped as standard with a blanking plug and a cable entry.
These elements guarantee protection from foreign bodies and water (protection type) IP65 as
per EN 60529.
The cable entries provided also ensure protection from foreign bodies and water. The nominal
diameter range of the cable entries is 3...7 mm.
Suitable blanking plugs and seals are to be used for unused cable entries. Ensure that the seals
are tight.
4.2 Earthing and equipotential bonding
If the device is not sufficiently electrostatically grounded via the process cables, an additional
earth connection must be established using the earth screw 1. The position of the ground
terminal is illustrated below. The connection guarantees only an electrostatic connection of the
device and does not comply with the requirements of an equipotential bonding connection.
For the H250/../M8.G/.. designs also ensure proper fit of the mounting screws 2.
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