BEKA BA418CF-F User manual

Issue: 8
27th March 2019
BA418CF-F
FOUNDATION™ fieldbus
Intrinsically safe
Panel mounting
Fieldbus Indicator
Issue: 8

1. Description
1.1 Documentation
2. Intrinsic Safety Certification
2.1 ATEX certificate
2.2 Ex ia Zones, gas groups and T rating
2.3 Ex ic Zones, gas groups and T rating
2.4 Fieldbus connection
2.5 Certification Iabel Information
3. System Design for Hazardous Area
3.1 FISCO Systems
3.2 Non-FISCO Sysems
3.3 Ex ic entity systems
4. Installation
4.1 Location
4.2 Installation procedure
4.3 EMC
5. Maintenance
5.1 Fault finding during commissioning
5.2 Fault finding after commissioning
5.3 Servicing
5.4 Routine maintenance
5.5 Guarantee
5.6 Customer comments
6. Accessories
6.1 Scale marking
6.2 Tag number
6.3 Fieldbus Interface Guide
Appendix 1
FM Approval for use in the USA and
cFM Approval for use in Canada.
Appendix 2
IECEx certification
2
CONTENTS
The BA418CF-F is CE marked to show compliance with the European Explosive Atmospheres
Directive 2014/34/EU and the European EMC Directive 2014/30/EU

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

2.3 Ex ic Zones, gas groups and T rating
The BA418CF-F also has Group II Category 3G
Ex ic IIC T4 Gc –40 ≤Ta ≤70oC entity parameter
approval with a higher Ui input voltage than the
Ex ia approval. When connected to a suitable
certified system the BA414DF-F may be installed
in:
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.
2.4 Fieldbus connection
The BA418CF-F Indicator is powered and
communicates via the fieldbus, which is connected
to terminals 1 and 2. These are non-polarised,
comply with the Fieldbus Intrinsically Safe Concept
(FISCO) and have separate Ex ia and Ex ic entity
input parameters as shown below:
FISCO Ex ia entity Ex ic entity
Ui = 17.5V 22.0V 32V
Ii = 380mA 250mA 125mA
Pi = 5.32W 1.2W 1W
The maximum equivalent capacitance and
inductance at terminals 1 & 2 is:
Ci = 0
Li = 8µH
2.5 Certification Label Information
The certification information label is fitted to the top
outer surface of the enclosure. It shows details of
the ATEX certification and a statement that the
instrument is a FISCO Field Device, plus BEKA
associates name and location. IECEx approval
information is also included. The label may also
contain non-European certification information.
The instrument serial number and year of
manufacture are shown on the rear of the
instrument adjacent to the terminals
The label includes boxed areas which should be
marked by the installer to show which of the three
certifications are being used.
3. SYSTEM DESIGN FOR HAZARDOUS
AREAS
3.1 FISCO Systems
The BA418CF-F may be connected to any ATEX
certified FISCO compliant fieldbus segment,
providing the segment can supply the additional
13mA required to power the instrument.
Fig 1 shows a typical fieldbus segment. To comply
with FISCO requirements, the power supply,
terminators, field devices and the interconnecting
cables must conform with the FISCO requirements
defined in EN 600079-11.
Fig 1 FISCO fieldbus system
4

3.2 Ex ia entity systems
The BA418CF-F Fieldbus Indicator has Ex ia
certification with entity parameters for applications
in Zone 0, 1 and 2.
The BA418CF-F Fieldbus Indicator may be
connected to any intrinsically safe segment
providing:
The device powering the fieldbus segment is
ATEX Ex ia certified for Zone 0, 1 or 2
applications, or Ex ib certified for application
in Zone 1 or 2. The output parameters
should be equal to or less than:
Uo = 22V dc
Io = 250mA dc
Po = 1.2W
The segment can provide an additional 13mA
to power the Fieldbus Indicator.
The equivalent capacitance Ci of the
BA418CF-F Fieldbus Indicator is zero and
the equivalent inductance is insignificant.
Therefore these BA418CF-F parameters do
not need to be considered.
3.3 Ex ic entity systems
The BA418CF-F Fieldbus Indicator also has Ex ic
certification with entity parameters for applications
in Zone 2. The high Ui voltage allows the
indicator to be used with Power-i and intrinsically
safe segment couplers powered from Ex e fieldbus
trunks.
When mounted in Zone 2 the BA418CF-F Fieldbus
Indicator may be connected to any intrinsically safe
segment providing:
The device powering the fieldbus segment is
ATEX Ex ia, ib or ic certified and has output
parameters equal to or less than:
Uo = 32V dc
Io = 125mA dc
Po = 1W
The segment can provide an additional 13mA
to power the Fieldbus Indicator.
The equivalent capacitance Ci of the
BA418CF-F Fieldbus Indicator is zero and
the equivalent inductance is insignificant.
Therefore these BA418CF-F parameters do
not need to be considered.
5

4. INSTALLATION
4.1 Location
The BA418CF-F is housed in a robust aluminium
enclosure with a toughened glass window
mounted in a Noryl bezel. The front of the
instrument provides IP66 protection and a gasket
seals the joint between the instrument enclosure
and the panel. The instrument may be installed in
any panel providing the environmental limits shown
in the specification are not exceeded.
Note: Although certified for safe use between
–40 and +70oC, the guaranteed operating
temperature range of the BA418CF-F Fieldbus
Indicator is –20 to +70oC.
Fig 2 shows the overall dimensions of the
BA418CF-F and the panel cut-out. To achieve an
IP66 seal between the instrument enclosure and
the panel, the smaller cut-out must be used and
the instrument secured with four panel mounting
clips.
CAUTION
Installation in Zone 0
When installed in a Zone 0 potentially
explosive atmosphere requiring apparatus
of Category 1G, the indicator shall be
installed such that even in the event of rare
incidents, an ignition source due to impact
or friction between the aluminium enclosure
at the rear of the instrument mounting panel
and iron/steel is excluded.
No special conditions apply when the indicator is
installed in Zone 1 or in Zone 2.
The BA418CF-F liquid crystal display has
maximum contrast when viewed from directly
ahead and slightly below the centre line of the
instrument.
Fig 2 BA418CF-F dimensions
6

4.2 Installation Procedure
a. Insert the BA418CF-F into the instrument
panel cut-out from the front of the panel.
b. Fix panel mounting clips to opposite sides of
the instrument and tighten. Recommended
tightening torque is 22cNm (1.95lbf in). Do
not over tighten. Four clips are required to
achieve an IP66 seal between the
instrument enclosure and the panel.
c. Connect the panel wiring to the rear
terminal block as shown in Fig 3. To
simplify installation, the terminals are
removable so that panel wiring can be
completed before the instrument is installed.
To prevent vibration damage ensure that
panel wirng is supported.
Fig 3 Installation and terminal connections
4.3 EMC
The BA418CF-F complies with the requirements of
the European EMC Directive 2014/30/EU. For
specified immunity, all wiring should be in
screened twisted pairs with the screens earthed at
one point in the safe area.
7

5. MAINTENANCE
5.1 Fault finding during commissioning
If a BA418CF-F fails to function during
commissioning the following procedure should be
followed:
Symptom Cause Check:
No Display Instrument not
correctly
connected or
powered.
Between
terminals 1 & 2:
FISCO 9 & 17.5V
Ex ia 9 to 22V
Ex ic 9 & 32V
Display shows
‘9.9.9.9.9’ with all
decimal points
flashing; all
bargraph
segments
activated and
bargraph scale
flashing.
Value
over-range
Variable source
Decimal point
configuration.
Display shows
‘-9.9.9.9.9’ with
all decimal points
flashing; no
bargraph
segments
activated and
bargraph scale
flashing.
Value
under-range
Variable source
Decimal point
configuration
Display
alternates
between value
and the word
‘bAd’. Bargraph
flashes.
Status of fieldbus
variable has a
quality of ‘BAD’
or a fault state is
active.
Display has not
yet received
data.
Variable source
Fieldbus
configuration.
Bargraph scale
flashes.
Variable is
outside the limits
defined for the
bargraph.
Bargraph
configuration.
All display
segments
activated.
Display is
initialising.
This is normal
operation, after a
few seconds the
firmware version
will be displayed
prior to entering
the operational
mode.
5.2 Fault finding after commissioning
ENSURE PLANT SAFETY BEFORE
STARTING MAINTENANCE
Live maintenance is permitted on intrinsically
safe equipment installed in a hazardous area,
but only certified test equipment should be
used unless a gas clearance certificate is
available.
If a BA418CF-F fails after it has been functioning
correctly, the table shown in section 5.1 may help
to identify the cause of the failure.
If this procedure does not reveal the cause of the
fault, it is recommended that the instrument is
replaced.
5.3 Servicing
We recommend that faulty BA418CF-F Fieldbus
Indicators be returned to BEKA associates or to
our local agent for repair.
5.4 Routine maintenance
The mechanical and electrical condition of the
instrument should be regularly checked. Initially
annual inspections are recommended, but the
inspection frequency should be adjusted to suit the
environmental conditions.
5.5 Guarantee
Instruments which fail within the guarantee period
should be returned to BEKA associates or our local
agent. It is helpful if a brief description of the fault
symptoms is provided.
5.6 Customer comments
BEKA associates is always pleased to receive
comments from customers about our products and
services. All communications are acknowledged
and whenever possible, suggestions are
implemented.
8

6. ACCESSORIES
6.1 Scale marking
BA418CF-F indicators are fitted with a blank
escutcheon around the liquid crystal display. If
specified when the instrument is ordered, this can
be supplied printed with units of measurement and
a scale for the horizontal bargraph.
6.2 Tag number
The BA418CF-F can be supplied with a thermally
printed tag number on the rear panel adjacent to
the terminals.
6.3 Fieldbus Interface Guide
The FOUNDATION™ fieldbus Interface Guide for
Fieldbus Displays & Fieldbus Indicators contains
commissioning information for the BA418CF-F. A
copy may be requested from the BEKA sales office
or downloaded from the BEKA web site at
www.beka.co.uk
9

APPENDIX 1
FM approval for use in the USA and
cFM Approval for use in Canada
A1.0 Factory Mutual Approval
For installations in the USA and Canada the
BA418CF-F has FM and cFM intrinsic safety and
nonincendive approvals, project identification
3027031 and 3027031C. Copies of the
Certificates of Compliance are available from
BEKA associates sales office and www.beka.co.uk.
A1.1 Intrinsic safey approval
The BA418CF-F is approved to FM Class 3610
intrinsic safety standard for use in hazardous
(classified) locations. Installations must comply
with BEKA associates Control Drawing CI410-12,
which is attached to this Appendix, ANSI/ISA
RP12.06.01 ‘Installation of Intrinsically Safe
Systems for Hazardous (Classified) Locations’ and
with the National Electrical Code ANSI/NFPA70.
Canadian installations must comply with the
Canadian Electrical Code C22.2 and with BEKA
associates Control Drawing CI410-13 which is
attached to this Appendix.
The BA418CF-F has a T4 rating at ambient
temperatures up to +70oC and may be used with
the following gases:
Intrinsic Safety
Division 1 or 2
Class I Group A & B
Group C
Group D
Zone 0, 1 or 2
Class 1 Group IIC
Group IIB
Group IIA
The FM and CFM entity parameters are identical to
the ATEX parameters and, like the ATEX
certification, confirm that the BA418CF-F complies
with the FISCO Field Device requirements
specified in IEC60079-27. The intrinsically safe
system shown in Fig 1 of this manual may
therefore be used for installations in the USA and
Canada, providing the fieldbus power supply,
terminators, Zener barriers and galvanic isolators
are FM Approved for US installations and CFM or
CSA Approved for Canadian installations. All
installations must comply with BEKA associates
Control Drawing CI410-12.
FM and CFM Approval also allows the BA418CF-F
to be connected to non-FISCO systems using the
entity concept – see section 3.2 of this manual.
A1.2 Nonincendive approval
The BA418CF-F is also Class 3611 nonincendive
approved by Factory Mutual allowing it to be
installed in Division 2 hazardous (classified)
locations without the need for Zener barriers or
galvanic isolators. US installations must comply
with the BEKA associates Control Drawing CI410-
13, which is attached to this Appendix, and with the
National Electrical Code ANSI/NFPA70.
Canadian nonincendive installations must comply
with the Canadian Electrical Code C22.2 and with
BEKA associates Control Drawing CI410-13 which
is attached to this Appendix.
The FM and CFM Nonincendive Approvals also
allow the BA418CF-F fieldbus indicator to be
connected to any appropriately certified FNICO
compliant fieldbus segment.
The BA418CF-F has a T4 rating at ambient
temperatures up to +70oC and may be used with
the following gases:
Nonincendive
Division 2
Class I Group A & B
Group C
Group D
Zone 2
Class I Group IIC
Group IIB
Group IIA
10

11

12

13

14

15

16

17

APPENDIX 2
IECEx certification
A3.0 The IECEx Certification Scheme
IECEx is a global certification scheme for
explosion protected products which aims to
harmonise international certification standards.
For additional information about the IECEx
certification scheme and to view the BEKA
associate certificates, please visit www.iecex.com
A3.1 IECEx Certificate of Conformity
The BA418CF-F Fieldbus Indicator has been
issued with an IECEx Certificate of Conformity
number IECEx ITS 06.0013X which specifies the
following certification codes:
For gas
Ex ia IIC T4 Ga
Ex ic IIC T4 Gc
FISCO Field Device Ex ia IIC T4
Ta = -40°C to 70°C
The specified IECEx gas intrinsic safety
parameters are identical to the ATEX safety
parameters described in the main section of this
manual.
The IECEx certificate may be downloaded from
www.beka.co.uk, www.iecex.com or requested
from the BEKA sales office.
A3.2 Installation
The IECEx and ATEX certificates specify identical
safety parameters and installation requirements as
defined by IEC 60079-14. The ATEX installation
requirements specified in the main section and
Appendix 1 of this manual may therefore be used
for IECEx installations, but the local code of
practice should also be consulted.
CAUTION installation in Zone 0
When installed in a Zone 0 potentially
explosive atmosphere requiring EPL Ga
apparatus, the instrument shall be installed
such that even in the event of rare incidents, an
ignition source due to impact or friction
between the aluminium label and iron/steel is
excluded.
No special conditions apply when the indicator is
installed in Zone 1 or in Zone 2.
Note: Although IECEx certified for safe use
between –40 and +70oC, the guaranteed operating
temperature range of the BA418CF-F Fieldbus
Indicator is –20 to +70oC.
A3.4 Versions of the BA418CF-F
All versions of the BA418CF-F Fieldbus Indicator
have IECEx, FM and cFM certification.
18