Installation Instructions; Atex / Iecex; Cfmus; Use In Areas Exposed To Combustible Dust - ABB CoriolisMaster FCH400 Series Operating Instructions Manual

20 CoriolisMaster FCB400, FCH400 CORIOLIS MASS FLOWMETER | OI/FCB400/FCH400-EN REV. E
... 2 Use in potentially explosive atmospheres

Installation instructions

ATEX / IECEx

The installation, commissioning, maintenance and repair of
devices in potentially explosive atmospheres must only be
carried out by appropriately trained personnel. Works may be
carried out only by persons, whose training has included
instructions on different types of protection and installation
techniques, concerned rules and regulations as well as general
principles of zoning.
The person must possess the appropriate competences for the
type of work to be conducted.
The safety instructions for electrical apparatus in potentially
explosive areas must be in accordance with Directive
2014/34/EU (ATEX) and IEC 60079-14 (Installation of electrical
equipment in potentially explosive areas).
Comply with the applicable regulations for the protection of
employees to ensure safe operation.

cFMus

The installation, commissioning, maintenance and repair of
devices in areas with explosion hazard must only be carried out
by appropriately trained personnel.
The operator must strictly observe the applicable national
regulations with regard to installation, function tests, repairs,
and maintenance of electrical devices. (e. g. NEC, CEC).

Use in areas exposed to combustible dust

When using the device in areas exposed to combustible dusts
(dust ignition), the following points must be observed:
• The maximum surface temperature of the device may not
up-scale 85 °C (185 °F).
• The process temperature of the attached piping may up-
scale 85 °C (185 °F).
• Approved dust-proof cable glands must be used when
operating in Zone 21, 22 or in Class II, Class III.

Opening and closing the housing

DANGER
Danger of explosion if the device is operated with the
transmitter housing or terminal box open!
While using the device in potentially explosive atmospheres
before opening the transmitter housing or the terminal box,
note the following points:
• A valid fire permit must be present.
• Make sure that no flammable or hazardous atmospheres
are present.
WARNING
Risk of injury due to live parts!
When the housing is open, contact protection is not provided
and EMC protection is limited.
• Before opening the housing, switch off the power supply.
See also Opening and closing the housing on page 38.
Only original spare parts must be used to seal the housing.
Note
Spare parts can be ordered from ABB Service.
www.abb.com/contacts