Use In Potentially Explosive Atmospheres According To Atex And Iecex; Device Overview; Ex-Marking - ABB VA Master FAM540 Commissioning Instructions

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2

Use in potentially explosive atmospheres according to ATEX and IECEx

NOTE
For further information on the approval of devices for use in potentially explosive atmospheres, refer to the type-examination
certificates or the relevant certificates at www.abb.com/flow.
2.1

Device overview

The devices are designed for maximum versatility. This is achieved through a combination of several types of protection within
each device. All devices are suitable for use in potentially explosive atmospheres with combustible dust. For detailed installation
instructions and terminal assignments, refer to chapter „Electrical connections" on page 31.
Zone 1
Potential equalization
1) Order code "Explosion protection and approvals" (versions 9, 10); refer to chapter „Ordering information in the data sheet" on page 36.
2.1.1

Ex-marking

NOTE
— Depending on the design, a specific marking in accordance with ATEX or IECEx applies.
— ABB reserves the right to modify the Ex-marking. Refer to the name plate for the exact marking.
Model FAM54xAx (analog indicator without alarm signaling unit)
Labeling
ATEX II 1/2 G c II T6...T1
II 2D c T85 °C to T
medium
II 2D Ex tb IIIC T85 ˚C... T
1) Order code "Explosion protection and approvals" (versions 9, 10); refer to chapter „Ordering information in the data sheet" on page 36.
Zone 2
Ex ia
Ex d
Type of protection
Constructional safety
Db Constructional safety
Db Dust-explosion protection
medium
Standard / No explosion protection
Ex nA
i
1)
Order code
A4, A9, B1
Order code
B1
(Ex nA)
(Ex nA,
Limit value table
„Table 5" on page 14
VA Master FAM540 | CI/FAM540-EN Rev. B 5
1)
A4
Ex ia)
A9
(Ex nA,
Ex ia,
Ex d)
G10467