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LERBAKKEN 10, 8410 RØNDE DENMARK.
Hazardous (Classified ) Location
Class I, Division 1, Group A,B,C,D T4..T6
Class I, Zone 0, AEx ia IIC T4..T6
Installation notes.
For installation in Class I the Transmitter must be installed in a suitable enclosure to meet installation
codes stipulated in The National Electrical Code (ANSI-NFPA 70).
Equipment that is FM-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,
provided that the agency's criteria are met. The combination is then 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
maximum power Pi(Pmax), which the device can receive and remain intrinsically safe, must
be equal to or greater than the voltage (Uo or V
power Po which can be delivered by the barrier. The sum of the maximum unprotected
capacitance (C
) for each intrinsically device and the interconnecting wiring must be less than
i
the capacitance (C
unprotected inductance (L
be less than the inductance (L
parameters Uo, V
OC
barrier manufacturer.
Revision date:
2014-09-17
FM Installation drawing 6333QF01
T6: -40 ≤ Ta ≤ 60ºC
T4: -40 ≤ Ta ≤ 85ºC
43
42
41
CH1
53
52
51
CH2
6333B1A : one channel
6333B1B : two channel
) which can be safely connected to the barrier. The sum of the maximum
a
) for each intrinsically device and the interconnecting wiring must
i
) which can be safely connected to the barrier. The entity
a
or V
and Io, I
or I
, and C
t
SC
t
Version Revision
V1R0
6333V105-ES
WWW.PRELECTRONICS.COM
Non Hazardous Location
13
+
12
-
11
23
+
22
21
-
) and current Ii(I
MAX
or V
) and current (Io or I
OC
t
and L
for barriers are provided by the
a
a
Terminal:
Barrier
11,12,13 and
21,22,23
Ui: 30 VDC
Ii: 120 mA
Pi: 0.84 W
Li: 10μH
Ci: 6.2nF
Barrier
), and
MAX
or I
) and the
SC
t
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