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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
BA364D 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 BA364D
counter, timer, tachometer and clock 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 CI330-33 and
note 5 of nonincendive control drawing CI330-35.
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 BA364D is approved to the FM Class 3610
intrinsic safety standard. Installations must
comply with BEKA associates Control Drawing
CI330-33, 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 BA364D 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 CI330-33.
A2.2 Nonincendive approval
The BA364D 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 CI330-35, which is
attached to this Appendix, and with the National
Electrical Code ANSI/NFPA70.
The BA364D 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
