24 CoriolisMaster FCB400, FCH400 CORIOLIS MASS FLOWMETER | CI/FCB400/FCH400-EN REV. H
… 2 Use in potentially explosive atmospheres
… Installation instructions
Cable entries in accordance with ATEX / IECEx
The devices are supplied with cable glands installed (certified in
accordance with ATEX or IECEx).
• The use of standard cable glands and closures is prohibited.
• The black plugs in the cable glands are intended to provide
protection during transport.
• The outside diameter of the connection cable must measure
between 6 mm (0.24 in) and 12 mm (0.47 in) to guarantee the
required tightness.
• Black cable glands are installed by default when the device is
supplied. If signal outputs are connected to intrinsically safe
circuits, replace the black cap on the corresponding cable
gland with the blue one supplied.
• Any unused cable entries must be sealed before
commissioning in accordance with the applicable standards.
Note
Low-temperature version devices (optional, up to −40 °C (−40 °F)
ambient temperature) are supplied with metal cable glands due
to the required temperature resistance.
Cable entries in accordance with cFMus
1 Transport protection plugs
Figure 1: Cable entry
The devices are delivered with ½ in NPT threads with transport
protection plugs.
• Unused cable entries must be sealed off prior to
commissioning using either approved pipe fittings or cable
glands in accordance with national regulations (NEC, CEC).
• Make sure that the pipe fittings, cable glands and, if
applicable, sealing plugs are installed properly and are leak-
tight.
• If the device is to be operated in areas with combustible
dusts, a threaded pipe connection or cable gland with
suitable approval must be used.
• The use of standard cable glands and closures is prohibited.
Note
Devices which are certified for use in North America are supplied
with a ½ in. NPT thread only and without cable glands.
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