3
1. DESCRIPTION
The
BA444DF-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
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
BA444DF-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 IP66 glass reinforced polyester
(GRP) enclosure with a toughened glass window,
the BA444DF-P is surface mounting, or may be
pipe mounted using one of the accessory kits.
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 and
combustible dust atmospheres. ATEX dust
certification is an option – see Appendix 1.
For use in the USA and Canada, the BA444DF-P
is available with intrinsic safety and nonincendive
FM and cFM Approval – see Appendix 2.
For international applications, all versions of the
BA444DF-P PROFIBUS PA indicator have IECEx
intrinsic safety approval allowing installation in
explosive gas atmospheres. IECEx dust
certification is available as an option – see
Appendix 3.
The instrument’s communication protocol is shown
on a label inside the terminal cover. 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 BA444DF-F for use on
FOUNDATION™ fieldbus networks.
1.1 Documentation
This instruction manual describes ATEX system
design and installation of the BA444DF-P
PROFIBUS PA indicator.
System design information for non-ATEX and dust
approvals is shown in appendices to this manual.
2. OPERATION
The BA444DF-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 BA444DF-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
1
gas
atmospheres, Ga Ex ia IIC T4 and for dust
atmospheres Ex iaD 20 T100ºC IP66. The
BA444DF-P is also FISCO compliant. 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 which conform with
EN 60079:Part 14 Electrical Installation in
Hazardous Areas. When designing systems for
installation outside the UK, the local Code of
Practice should be consulted.
For use in the presence of combustible dust,
please refer to Appendix 1 that describes ATEX
installations complying with EN 61241: Part 14.
