3
1. DESCRIPTION
The BA448CF-P fieldbus indicator is an intrinsically
safe, PROFIBUS PA 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 a 31 segment
analogue bargraph. The instrument is bus
powered so no additional power supply is required
and it has PROFIBUS PA User Organisation
approval, certificate Z01505.
Fieldbus node configuration may be performed by
either a User PRM data download or by a DPV1
configurator, and if required, the instrument
address may be entered via the front panel push
buttons.
When configured as a fieldbus listener, the
BA448CF-P 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-P fieldbus indicator has
an IP66 front panel and is supplied with a gasket to
seal the joint between the instrument & the panel.
The instrument is intrinsically safe and has been
certified by European Notified Body Intertek
Testing and Certification Ltd (ITS) to the ATEX
Directive 94/9/EC for use in explosive gas
atmospheres.
The BA448CF-P 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-P
fieldbus indicator has IECEx intrinsic safety
approval – see Appendix 2.
The instrument’s communication protocol is shown
on the rear of the instrument. The ‘-P’ 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-F for use on FOUNDATION™
fieldbus networks.
1.1 Documentation
This instruction manual describes ATEX system
design and installation of the BA448CF-P Fieldbus
Indicator. System design information for FM, cFM
and IECEx installations is shown in separate
appendices to this manual.
For additional node configuration information
please refer to the BEKA PROFIBUS PA Display –
Fieldbus Interface Guide which is available from
the BEKA sales office, or may be downloaded from
www.beka.co.uk
2. OPERATION
The BA448CF-P indicator can display up to eight
pre-configured PROFIBUS PA 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
‘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-P has been issued with an EC-Type
Examination Certificate by Notified Body Intertek
Testing and Certification Ltd (ITS) confirming
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.
3.2 Zones, gas groups and T rating
The BA448CF-P has been issued with EC Type
Examination
certificate
ITS06ATEX25314/2X
confirming that it complies with the requirements
for Group II Category 1G Ga Ex ia IIC T4 (Tamb
–40 to 70
o
C) specified in the ATEX Directive.
When connected to a suitable certified system the
BA448CF-P may be installed in:
Zone 0
explosive gas air mixture
continuously present.
Note: Special conditions for
safe use apply see section 5.1
Zone 1
explosive gas air mixture
likely to occur in normal
operation.
Zone 2
explosive gas air mixture not
likely to occur, and if it does will
only exist for a short time.
