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LERBAKKEN 10, 8410 RØNDE DENMARK.
Installation notes:
This drawing applies to models 6350A2a and 6350B2a
Where: a = A (Single Channel) or B (Double Channel)
All drawings are shown as Double Channel.
For Single Channel installation Channel 2 (CH2) is not mounted (terminal 51-54 and 21-24)
For installation in the US the 6350 must be installed according to National Electrical Code (ANSI-
NFPA 70).
For installation in Canada the transmitter must be installed in a suitable enclosure to meet
installation codes stipulated in the Canadian Electrical Code (CEC).
For installation in Canada different intrinsically safe circuits need to be separated as outlined in the
Canadian Electrical Code (CEC)
The entity concept
Equipment that is FM / CSA -approved for intrinsic safety may be connected to barriers based on
the ENTITY CONCEPT. This concept permits interconnection of approved transmitters, meters and
other devices in combinations which have not been specifically examined by FM / CSA, provided
that the agency's criteria are met. The combination is intrinsically safe, if the entity concept is
acceptable to the authority having jurisdiction over the installation.
The entity concept criteria are as follows:
The intrinsically safe devices, other than barriers, must not be a source of power.
The maximum voltage Ui(V
device can receive and remain intrinsically safe, must be equal to or greater than the voltage (Uo or
V
or V
) and current (Io or I
OC
t
The sum of the maximum unprotected capacitance (C
interconnecting wiring must be less than the capacitance (C
barrier.
The sum of the maximum unprotected inductance (L
interconnecting wiring must be less than the inductance (L
barrier.
The entity parameters Uo,V
barrier manufacturer.
FISCO rules
The FISCO Concept allows the interconnection of intrinsically safe apparatus to associated
apparatus not specifically examined in such combination. The criterion for such interconnection is
that the voltage (Vmax), the current (Imax) and the power (Pi) which intrinsically safe apparatus
can receive and remain intrinsically safe, considering faults, must be equal or greater than the
voltage (Uo, Voc, Vt), the current (Io, Isc, It,) and the power (Po) which can be provided by the
associated apparatus (supply unit). In addition, the maximum unprotected residual capacitance (Ci)
and inductance (Li) of each apparatus (other than the terminators) connected to the Fieldbus must
be less than or equal to 5 nF and 10 H respectively.
In each I.S. Fieldbus segment only one active source, normally the associated apparatus, is
allowed to provide the necessary power for the Fieldbus system. The allowed voltage (Uo, Voc, Vt)
of the associated apparatus used to supply the bus must be limited to the range of 14V d.c. to 24V
d.c. All other equipment connected to the bus cable has to be passive, meaning that the apparatus
is not allowed to provide energy to the system, except to a leakage current of 50 A for each
Revision date:
2014-12-11
) and current Ii(I
), and maximum power Pi(Pmax), which the
MAX
MAX
or I
) and the power Po which can be delivered by the barrier.
SC
t
) for each intrinsically device and the
i
or V
and Io,I
or I
, and C
OC
t
SC
t
Version Revision
V3R0
6350104-FR
WWW.PRELECTRONICS.COM
) for each intrinsically device and the
i
) which can be safely connected to the
a
) which can be safely connected to the
a
and L
for barriers are provided by the
a
a
6350QE02
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