Rosemount 848T Bedienungsanleitung Seite 17
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17
Rosemount 848T Family
November 2014
www.rosemount.com
NC ATEX Type n (without enclosure)
Certificate: IECEx BAS 09.0031U
Standards: IEC 60079-0:2004, IEC 60079-15:2005
Markings: Ex nA nL IIC T4(-50 °C
≤ T
a
≤ +85 °C),
T5(-50 °C ≤ T
a
≤ +70 °C)
Special Conditions for Safe Use (X):
1. The component must be installed in a suitable
component certified enclosure that provides a degree
of protection of at least IP54 and meets the relevant
material and environmental requirements of EN
60079-0:2006 and EN 60079-15:2005.
2. Provision must be made, external to the apparatus, to
ensure the rated voltage of the apparatus supply is not
exceeded by transient disturbances of more than 40%.
3. The electrical circuit is connected directly to earth; this
must be taken into account when installing the
apparatus.
Brazil
I2 INMETRO Intrinsic Safety
Certificate: NCC 12.1156X
Standards: ABNT NBR IEC 60079-0:2008 Versão corrigida
2011, ABNT NBR IEC 60079-11:2009, ABNT
NBR IEC 60079-26:2008 Versão corrigida 2009,
ABNT NBR IEC 60079-27:2010
Markings: Ex ia IIC T4(-50 °C
≤ T
a
≤ +60 °C)
Special Conditions for Safe Use (X):
1. The equipment must be installed in an enclosure that
provides a degree of protection of at least IP20 and
which is appropriate to the application specified in
ABNT NBR IEC60079-0.
2. The equipment is not capable of withstanding the
dielectric strength test of 500 V according to item
6.3.12 of ABNT NBR IEC60079-1, this should be
considered in the installation, see installation manual.
IB INMETRO Intrinsic Safety
Certificate: NCC 12.1156X
Standards: ABNT NBR IEC 60079-0:2008 Versão corrigida
2011, ABNT NBR IEC 60079-11:2009, ABNT
NBR IEC 60079-26:2008 Versão corrigida 2009,
ABNT NBR IEC 60079-27:2010
Markings: Ex ia IIC T4(-50 °C
≤ T
a
≤ +60 °C)
Special Conditions for Safe Use (X):
1. The equipment must be installed in an enclosure that
provides a degree of protection of at least IP20 and
which is appropriate to the application specified in
ABNT NBR IEC60079-0.
2. The equipment is not capable of withstanding the
dielectric strength test of 500 V according to item
6.3.12 of ABNT NBR IEC60079-1, this should be
considered in the installation, see installation manual.
N2 INMETRO Intrinsic Safety Zone 2
Certificate: NCC 12.1182X
Standards: ABNT NBR IEC 60079-0:2008 Versão corrigida
2011, ABNT NBR IEC 60079-11:2009
Markings: Ex ic IIC T5(-40 °C
≤ T
a
≤ +65 °C) Gc
Special Conditions for Safe Use (X):
1. The equipment must be mounted within an enclosure
that meets at least the degree of protection IP54, with
material and manufacture covered by a quality
certificate. If the enclosure is non-metallic, the
enclosure must have a surface resistance less than 1
GΩ. If the enclosure is made of zirconium alloy, the
enclosure must be protected against impact and
friction when installed.
2. Provision must be made, external to the equipment, to
ensure that the supply voltage (42.2 Vdc) is not
exceeded by transient disturbances of more than 40%.
3. The maximum ambient temperature will be restricted
to lowest temperature rating of the equipment, cables,
cables glands or plugs.
4. The electric circuit is connected directly to ground,
this should be taken into account when installing the
equipment.
China
I3 NEPSI Intrinsic Safety
Certificate: GYJ111365X
Standards: GB3836.1-2000, GB3836.4-2000
Markings: Ex ia IIC T4
Special Conditions for Safe Use (X):
1. Only when temperature transmitter is installed in
IP20(GB4208-2008) housing, can it be used in a
hazardous location. Metallic housing should observe
the requirements of GB3836.1-2000 Clause 8.
Non-metallic housing should observe the
requirements of GB3836.1-2000 Clause 7.3.
Table 10. Entity Parameters
Fieldbus
(input)
Sensor field terminal
(output)
U
i
= 30 V U
o
= 12.5 V
I
i
= 300 mA I
o
= 4.8 mA
P
i
= 1.3 W P
o
= 15 mW
C
i
= 2.1 nF C
o
= 1.2 μF
L
i
= 0 L
o
= 1 H
Table 11. Entity Parameters
Fieldbus
(input)
Sensor field terminal
(output)
U
i
= 17.5 V U
o
= 12.5 V
I
i
= 380 mA I
o
= 4.8 mA
P
i
= 5.32 W P
o
= 15 mW
C
i
= 2.1 nF C
o
= 1.2 μF
L
i
= 0 L
o
= 1 H
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