BEKA BA484DF-P, Руководство пользователя

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APPENDIX 2
FM approval for use in the USA
A2.0 Factory Mutual Approval
For installations in the USA, the BA484DF-P and
optional alarms have been approved intrinsically
safe and nonincendive by FM Approvals, project
identification 3022546. Copies of the Certificate of
Compliance are available from BEKA associates.
The FM Approved version of the BA484DF-P
Fieldbus Display 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 Control Drawing CI480-17 and
note 7 of Control Drawing CI480-18. The
certification label on the FM Approved version
includes ATEX gas certification information so that
the Fieldbus Display may be used in systems
covered by either authority.
A2.1 Intrinsic safey approval
The BA484DF-P is approved to the FM Class 3610
intrinsic safety standard for use in indoor and
outdoor hazardous (classified) locations.
Installations must comply with BEKA associates
Control Drawing CI480-17, 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 BA484DF-P 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 identical to the
ATEX parameters and, like the ATEX certification,
confirm that terminals 1 & 2 of the BA484DF-P
comply with the requirements for a FISCO Field
Device specified in IEC60079-27. The intrinsically
safe circuits shown in Figs 2 and 3 of this manual
may therefore be used for installations in the USA,
providing the fieldbus power supply, terminators,
Zener barriers and galvanic isolators are FM
Approved and comply with BEKA associates
Control Drawing CI480-17. The FM Approval also
allows the BA484DF-P to be connected to non-
FISCO systems using the entity concept – see
section 4.2 of this manual.
A2.2 Nonincendive approval
The BA484DF-P is Class 3611 nonincendive
approved by Factory Mutual allowing it to be
installed in Division 2 indoor and outdoor
hazardous (classified) locations without the need
for Zener barriers or galvanic isolators.
Installations must comply with the BEKA
associates Control Drawing CI480-18, which is
attached to this Appendix, and with the National
Electrical Code ANSI/NFPA70.
The FM Nonincendive Approval also allows the
instrument to be connected to any FNICO
compliant fieldbus segment powered by FM
Approved Associated Nonincendive Field Wiring
Apparatus.
The BA484DF-P 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 Groups E, F & G
Class III
Zone 2
Class I Group IIC
Group IIB
Group IIA