1. DESCRIPTION
The BA418CF-F Fieldbus Indicator is an
intrinsically safe, FOUNDATION™ fieldbus
instrument, compliant with ITK 6.3, that can display
one fieldbus process variable on a five digit LCD
and 31 segment analogue bargraph. The
instrument is bus powered so no additional power
supply is required.
Communication Fieldbus Function
Protocol Block
FOUNDATION™ fieldbus Input Selector (1 x IS)
The Device Description files may be downloaded
from the FieldComm or the BEKA associates
website.
Housed in a robust 72 x 144 panel mounting DIN
enclosure, the BA418CF-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 has been ATEX certified
intrinsically safe by European Notified Body
Intertek Testing and Certification Ltd (ITS) for use
in explosive gas atmospheres.
The BA418CF-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 BA418CF-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.
1.1 Documentation
This instruction manual describes ATEX system
design and installation of the BA418CF-F Fieldbus
Indicator. For commissioning information please
refer to:
FOUNDATION™ fieldbus
Fieldbus Interface Guide
for
Fieldbus Displays and
Fieldbus Indicators
which can be downloaded from the BEKA website
www.beka.co.uk
System design information for FM, cFM and IECEx
is shown in separate appendices to this manual.
2. INTRINSIC SAFETY CERTIFICATION
2.1 ATEX certificate
The BA418CF-F has been issued with an EC-Type
Examination Certificate by Notified Body Intertek
Testing and Certification Ltd (ITS) confirming
compliance with harmonised European standards.
The BA418CF-F fieldbus indicator has Ex ia
FISCO and Ex ia entity parameter certification,
plus Ex ic entity parameter certification for use in
Zone 2 with high supply voltages.
The EC-Type examination certificate has been
used to confirm compliance with the ATEX
Directive 2014/34/EU. The BA418CF-F carries 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 installations design,
selection and erection. When designing systems
for installation outside the UK, the local Code of
Practice should be consulted.
2.2 Ex ia Zones, gas groups and T rating
The BA418CF-F has Group II Category 1G Ex ia
IIC T4 Ga –40 ≤Ta ≤70oC FISCO and entity
parameter approval. When connected to a
suitable certified system the BA418CF-F may be
installed in:
Zone 0 explosive gas air mixture
continuously present.
Note: Special conditions for
safe use apply see section 4.1
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.
Be used with gases in groups:
Group A propane
Group B ethylene
Group C hydrogen
In gases which may be used with equipment
having a temperature classification of:
T1 450ºC
T2 300ºC
T3 200ºC
T4 135ºC
At an ambient temperature between –40 and
+70oC.
3
