PR electronics PROFIBUS PA / FOUNDATION Fieldbus 6350 Manual De Instrucciones página 25

Installation Notes For FISCO and Entity Concepts:
1. The Intrinsic Safety Entity concept allows the interconnection of FM / CSA
Approved Intrinsically safe devices (Div 1 or Zone 0 or Zone1) and
non.incendive apparatus (Div 2 or Zone 2) ,with entity parameters not
specifically examined in combination as a system when: Uo or Voc or Vt ≤
Vmax, Io or Isc or It ≤ Imax, Po ≤ Pi.
Ca or Co ≥ ΣCi + ΣCcable, La or Lo ≥ ΣLi + ΣLcable, Po ≤ Pi.
2. The Intrinsic Safety FISCO concept allows the interconnection of FM / CSA
Approved Intrinsically safe devices with FISCO parameters not specifically
examined in combination as a system when:
Uo or Voc or Vt ≤ Vmax, Io or Isc or It ≤ Imax, Po ≤ Pi.
3. Dust-tight conduit seals must be used when installed in Class II and Class III
environments.
4. Control equipment connected to the Associated Apparatus must not use or
generate more than 250 Vrms or Vdc.
5. Installation should be in accordance with ANSI/ISA RP12.6 (except chapter 5 for
FISCO Installations) "Installation of Intrinsically Safe Systems for Hazardous
(Classified) Locations" and the National Electrical Code® (ANSI/NFPA 70)
Sections 504 and 505.
6. The configuration of associated Apparatus must be Factory Mutual Research or
CSA Approved under the associated concept.
7. Associated Apparatus manufacturer's installation drawing must be followed
when installing this equipment.
8. The 6350 Series are Approved for Class I, Zone 0, applications. If connecting
AEx[ib] associated Apparatus or AEx ib I.S. Apparatus to the 6350 the I.S.
circuit is only suitable for Class I, Zone 1, or Class I, Zone 2, and is not suitable
for Class I, Zone 0 or Class I, Division 1, Hazardous (Classified) Locations.".
9. No revision to drawing without prior FM / CSA Approval.
10. Simple Apparatus is defined as a device that neither generates nor stores more
than 1.2V, 0.1A 20uJ or 25mW.
11. The termination must be NRTL approved, and the resistor must be infallible.
12. Warning:
For applications in Div2 or Zone 2 (Classified Locations) Explosion hazard:
Except for field circuits, do not disconnect the apparatus unless the area is
known to be non hazardous.
13 Warning:
Substitution of Components May Impair Safety.
6350QE02revAB.doc 2004-02-06 Rev. AB
6350V103-ES
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