Support For Connections To Instruments In Hazardous Areas - ABB S800 Product Manual

Section 2 Product Description
TB810 and TB842 are equipped with a transmitter/receiver for up to 10 Mbit/s
and TB811 for up to 5 Mbit/s. A ModuleBus must have the same type of
transmitter/receiver on each node.

Support for connections to instruments in Hazardous Areas

S800 I/O provide two possibilities to connections of instruments in Hazardous
areas, both integrated with special I/O modules and with support for external
Intrinsic Safety systems.
The S800 I/O includes I/O modules and MTU with Intrinsic Safety interfaces,
namely AI890, AI893, AI895, AO890, AO895, DI890, DO890 and TU890. The
interfaces are classified Ex ia, Group IIC and the modules are ATEX certified.
The correct and safe operation of the Intrinsic Safety aspects of MTU and I/O
Modules with Intrinsic Safety interfaces calls for expert installation and
commissioning as well as correct operation and meticulous maintenance. Only
those persons conversant with the installation commissioning, operation and
maintenance of similar apparatus and who has the necessary qualifications should
work on these products.
Ensure that the installation is carried out observing the safety regulations pertaining
to the installation, operation of electrical systems, and the directives and guidelines
on explosion protection (Hazardous Area equipment should comply with the
descriptive system document).
The set of I/O modules and MTUs are not intended for hazardous area installation
unless it is included in a suitable enclosure which conforms to the applicable
standards. To mount the equipment in a Zone2 hazardous area then an enclosure or
cabinet which provides ingress protection of IP54 rating is required.
For I.S. applications, the maximum limit for AC power supply is 250 V
user must ensure that the DC power supply to the FCI and I/O is limited to 60 V.
3BSE015969-600 A
Support for connections to instruments in Hazardous Areas
and the
rms
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