Flomec Oval Gear, Руководство по эксплуатации

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2.7.5 Earthing of Flameproof Flowmeters
A facility for the connection of an earthing conductor is provided inside the terminal
cover of all flameproof (EXd) flowmeters, as per below diagrams. The earthing connection
is fitted with a 5mm Philips head screw with a locking washer and allows for the fitment of
a 5mm ring terminal.
Applicable Models: 004, 006, 008, all High Pressure models
Applicable Models: 015,025,040, 050, 080, 080E, 100, 100E
The use of the internal earth connection as the only earthing connection may be
acceptable with wiring systems using steel wire armoured cable or metallic conduit. For all
other installations an external earthing connection must be used which may be connected
to the external threaded mounting holes on the flowmeter body or using metallic cable
glands with earthing tags.