3
1. DESCRIPTION
The BA448CF-F fieldbus indicator is an intrinsically
safe FOUNDATION™ fieldbus instrument that may
be configured as a fieldbus node or as a fieldbus
listener. It can display up to eight fieldbus process
variables on a five digit LCD and 31 segment
analogue bargraph. The instrument is bus
powered so no additional power supply is required.
As a fieldbus node the indicator is configured via
the fieldbus host.
Communication Fieldbus Function
Protocol Blocks
FOUNDATION™ fieldbus
Input Selector (2 x IS)
Digital input (6 x DI)
Device Description files may be downloaded from
the Fieldbus Foundation or from the BEKA
associates websites.
When configured as a fieldbus listener the
BA448CF-F is not visible to the fieldbus host and
can only be configured using the push buttons on
the front of the instrument.
Housed in a robust 72 x 144 panel mounting DIN
enclosure, the BA448CF-F fieldbus indicator has
an IP66 front panel and is supplied with a gasket to
seal the joint between the instrument and the
panel.
The instrument is intrinsically safe and has been
certified by European Notified Body Intertek
Testing and Certification Ltd (ITS) to harmonised
ATEX explosive gas standards, which has been
used to confirm compliance with European ATEX
Directive 94/9/EC.
The BA448CF-F also has intrinsic safety and
nonincendive FM and cFM Approval allowing
installation in the USA and Canada – see
Appendix 1.
For international applications the BA448CF-F
fieldbus indicator has IECEx intrinsic safety
approval – see Appendix 2.
The instrument’s communication protocol is shown
on the rear of the instrument. The ‘-F’ order code
suffix also indicates the protocol but is not shown
on the instrument certification label. There is an
alternative version of the fieldbus display, order
code BA448CF-P for use on PROFIBUS PA
networks.
1.1 Documentation
This instruction manual describes ATEX system
design and installation of the BA448CF-F fieldbus
indicator.System design information for non-ATEX
approvals is shown in appendices to this manual.
2. OPERATION
The BA448CF-F fieldbus indicator can display up
to eight pre-configured FOUNDATION™ fieldbus
process variables designated in-1 to in-8. The
operator can select which variable is displayed
using the
▼
and
▲
push buttons which scroll the
display through the eight inputs. A numeric
annunciator on the left hand side of the display
shows which of the eight inputs is currently being
displayed.
2.1 Error messages
When the BA448CF-F is configured as a listener
the following error messages may be displayed:
‘no ConF’
No inputs have been
configured or are enabled.
‘no dAtA’
No data is being received
with the current configuration.
3. INTRINSIC SAFETY CERTIFICATION
3.1 ATEX certificate
The BA448CF-F has been issued with an EC-Type
Examination Certificate by Notified Body Intertek
Testing and Certification Ltd (ITS) that has been
used to confirm compliance with the European
ATEX Directive 94/9/EC for Group II, Category 1G,
gas atmospheres, Ga Ex ia IIC T4. The instrument
bears the Community Mark and, subject to local
codes of practice, may be installed in any of the
European
Economic
Area
(EEA)
member
countries. ATEX certificates are also acceptable
for installations in Switzerland.
This manual describes ATEX installations in
explosive gas atmospheres that conform with
EN
60079:Part14
Electrical
Installation
in
Hazardous Areas. When designing systems for
installation outside the UK, the local Code of
Practice should be consulted.
