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Appendix 2
FM approval for use in USA
A2.0 Factory Mutual Approval
For installations in the USA, a version of the
BA334D and accessories have been approved
intrinsically safe and nonincendive by FM
Approvals, project identification 3022309.
Copies of the Certificate of Compliance are
available from the BEKA associates sales
office and from the BEKA web site
www.beka.co.uk.
The FM Approved version of the BA334D
externally powered rate totaliser is identical to
the ATEX version except the three M20 x 1,5
tapped cable entries are replaced by three
plain unthreaded 22.25mm diameter entries.
Approved hubs and glands are listed in note 8
of intrinsically safe control drawing CI330-32
and note 5 of nonincendive control drawing
CI330-34. The certification label on the FM
Approved version includes ATEX gas
certification information so that the rate
totaliser may be used in systems covered by
either authority.
A2.1 Intrinsic safey approval
The BA334D is approved to the FM Class 3610
intrinsic safety standard. Installations must
comply with BEKA associates Control Drawing
CI330-32, which is attached to this Appendix,
ANSI/ISA RP12.06.01 ‘Installation of
Intrinsically Safe Systems for Hazardous
(Classified) Locations’ and with the National
Electrical Code ANSI/NFPA70.
The BA334D has a T4 rating at ambient
temperatures up to +60
o
C and may be used
with the following gases and dusts:
Intrinsic Safety
Division 1 or 2
Class I Group A & B
Group C
Group D
Class II Group E, F & G
Class III
Zone 0, 1 or 2
Class 1 Group IIC
Group IIB
Group IIA
The FM entity parameters are similar to the
ATEX parameters. The intrinsically safe
circuits shown in this manual may therefore be
used for installations in the USA, providing the
Zener barriers and galvanic isolators are FM
Approved and comply with BEKA associates
Control Drawing CI330-32.
A2.2 Nonincendive approval
The BA334D is Class 3611 nonincendive
approved by Factory Mutual allowing it to be
installed in Division 2 Classified Areas without
the need for Zener barriers or galvanic
isolators. Installations must comply with the
BEKA associates Control Drawing CI330-34,
which is attached to this Appendix, and with
the National Electrical Code ANSI/NFPA70.
The BA334D has a T4 rating at ambient
temperatures up to +60
o
C and may be used
with the following gases and dusts:
Nonincendive
Division 2
Class I Group A & B
Group C
Group D
Class II Group E, F & G
Class III
Zone 2
Class I Group IIC
Group IIB
Group IIA
Summary of Contents for BA334D
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