BEKA FOUNDATION BA488CF-F User manual

Issue: 12
6
th
June 2011
BA488CF-F
FOUNDATION™ fieldbus
Intrinsically safe
Panel mounting display
issue 12

2
1. Description
1.1 Documentation
1.2 Version 2.3 firmware
2. Operation
2.1 Controls
3. Intrinsic Safety Certification
3.1 ATEX certificate
3.2 Zones, gas groups and T rating
3.3 Fieldbus connection
3.4 External switches
3.5 Alarm outputs
3.6 Certification label information
4. System Design for Hazardous Area
4.1 FISCO Systems
4.2 Non FISCO Systems
4.3 External switches
4.4 Alarm outputs
5. Installation
5.1 Location
5.2 Installation procedure
5.3 EMC
6. Display & Alarm Configuration
6.1 Default configuration
6.2 Accessing the display configuration
menus
6.3 Configurable functions
6.3.1 Screens (Display format)
6.3.2 Input settings
6.3.3 Tags
6.3.4 Units
6.3.5 Alarms
6.3.5.1 Alarm Summary
6.3.5.2 Alarm Activation
6.3.5.3 Alarm Output
6.3.6 Display
6.3.6.1 Settings
6.3.6.2 Quick Access
6.3.6.3 Access Code
6.3.6.4 Status Text
6.3.6.5 Last Input
6.3.7 Keys
6.3.8 Code
6.3.9 Unit Info
6.3.10 Defaults
6.3.10.1 Display Defaults
6.3.10.2 Interface Board
Defaults.
6.3.10.3 Revisions 1 & 2
6.4 Quick Access Menu
7. Programming
8. Maintenance
8.1 Fault finding during commissioning
8.2 Fault finding after commissioning
8.3 Servicing
8.4 Routine maintenance
8.5 Guarantee
8.6 Customer comments
9. Accessories
9.1 Tag number
9.1 FOUNDATION™ fieldbus Interface
Guide.
10. Index
Appendix 1
FM Approval for use in the USA
Appendix 2
IECEx certification
The BA488CF-F is CE marked to show compliance with the
European Explosive Atmospheres Directive 94/9/EC
and the European EMC Directive 2004/108/EC
CONTENTS

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1. DESCRIPTION
The BA488CF-F FOUNDATION™ fieldbus display
is an intrinsically safe instrument that can display
up to eight FOUNDATION™ fieldbus process
variables, together with their units of measurement
and tag information. The instrument is bus
powered so no additional power supply is required.
The instrument’s communications protocol is
shown on the rear panel. 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 BA488CF-P for use on Profibus PA networks.
The BA488CF-F FOUNDATION™ fieldbus display
may be ordered, or configured on-site, with
alternative function blocks allowing use with most
FOUNDATION™ fieldbus hosts.
Revision 1 One Multiple Analogue
Output
(1 x MAO)
Revision 2 Two Input Selectors
(2 x IS)
The required Device Description files, which may
be downloaded from either the Fieldbus
Foundation or the BEKA websites, depend upon
which BA488CF-F FOUNDATION™ fieldbus
display revision is selected.
Eleven selectable standard display formats enable
one, two, three, four or eight process variables,
some with bargraphs to be displayed on one
screen.
The BA488CF-F FOUNDATION™ fieldbus display
can be supplied with six optional alarm outputs that
may be linked to any of the displayed fieldbus
variables. These alarm outputs are locally
activated from the fieldbus variables and are
configured via the instrument menu and push
buttons. They can not be controlled via the
fieldbus.
The instrument has been certified intrinsically safe
by European Notified Body Intertek Testing
Services (ITS) to the ATEX Directive 94/9/EC for
use in potentially explosive gas atmospheres.
For use in the USA the instrument has intrinsic
safety and nonincendive FM Approval – see
Appendix 1, plus IECEx intrinsic safety approval
for international applications – see Appendix 2.
Housed in a robust 72 x 144 panel mounting DIN
enclosure, the BA488CF-F FOUNDATION™
fieldbus display has an IP66 front panel and is
supplied with a gasket to seal the joint between the
instrument and the panel.
1.1 Documentation
This instruction manual describes system design,
conditioning and installation of the BA488CF-F
FOUNDATION™ fieldbus display. For detailed
commissioning information please refer to the
FOUNDATION™ fieldbus Interface Guide that can be
downloaded from the BEKA website www.beka.co.uk
1.2 Version 2.3 Firmware
This manual describes the enhanced features of
BA488CF-F FOUNDATION™ fieldbus displays
employing version 2.3 firmware that was released
in April 2011 following an interim update to version
2.0 in December 2005.
The new features include:
Standard screens increased to 11
Multiple bargraph limits added
Input scaling added
Selectable function blocks added:
Revision 1
1 x MAO (multiple analogue output)
or Revision 2
2 x IS (Input selector)
Option added to remove status text from
single variable screens.
Last variable parameter added to prevent the
display of unused inputs.
The instrument’s firmware version can be
established using the ‘Unit Info’ function in the
main configuration menu – see section 6.3.9 of this
manual.
BA488CF-F FOUNDATION™ fieldbus displays
employing version 2.3 firmware are backwards
compatible with all earlier versions of the
instrument.

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2. OPERATION
Fig 1 shows a simplified block diagram of the
BA488CF-F FOUNDATION™ fieldbus display.
When the optional alarms are not fitted, the
instrument only requires a two-wire connection to
the fieldbus.
How much of the BA488CF-F FOUNDATION™
fieldbus display configuration can be performed via
the fieldbus depends upon the instrument version
and the system host. Parameters that can not be
configured via the fieldbus can be set via the four
front panel push buttons. Menus enable the
required standard display format to be selected
and the units of measurement, plus tag information
for each displayed fieldbus variable to be entered.
Each fieldbus variable may be individually offset
and scaled, and when a standard screen including
a bargraph is selected, the limits of each bargraph
can be set.
The optional alarms are locally activated from the
fieldbus variables and can only be configured and
the setpoints adjusted using the BA488CF-F push
buttons. The alarms can not be configured or
controlled via the fielsbus.
Description Files for the BA488CF-F
FOUNDATION™ fieldbus display may be
downloaded from either the Fieldbus Foundation or
from the BEKA associates websites.
Fig 1 Simplified block diagram of BA488CF-F
2.1 Controls
The user can scroll through the display screens by
operating the ▼or ▲push buttons. The number
of screens available depends upon how the
BA488CF-F display has been configured. If one
fieldbus variable per screen has been configured,
eight screens will be present; if four fieldbus
variables per screen have been configured, only
two screens will be available.
Irrespective of the number of fieldbus variables
assigned to the BA488CF-F, the instrument always
has provision for displaying eight variables.
Unassigned inputs are displayed as zero with a
bad data warning i.e. light digits on a dark
background. The Last Input parameter allows
unused inputs to be skipped when scrolling
through the instrument display screens, see
section 6.3.6.5.
If enabled, operating the Pand ▲push buttons
simultaneously activates the Quick Access Menu,
allowing the user to adjust the display contrast
without providing access to any of the other
configuration parameters. Additional security may
be provided by an optional access code.

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3. INTRINSIC SAFETY CERTIFICATION
3.1 ATEX certificate
The BA488CF-F has been issued with EC-Type
Examination Certificate by Notified Body Intertek
Testing Services (ITS) confirming compliance with
the European ATEX Directive 94/9/EC for Group II,
Category 1, gas atmospheres, EEx 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.
Some of the standards specified may have
subsequently been deharmonised, see BEKA
Declaration of Conformity for current conformity
This manual describes installations which 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 BA488CF-F has been issued with EC Type
Examination certificate ITS04ATEX22779
confirming that it complies with the requirements
for Group II Category 1 G EEx ia IIC T4 (Tamb –40
to 60°C) specified in the ATEX Directive. When
connected to a suitable system the BA488CF-F
may be installed in:
Zone 0 explosive gas air mixture
continuously present.
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
Having a temperature classification of:
T1 450°C
T2 300°C
T3 200°C
T4 135°C
At an ambient temperature between –40 and
+60°C.
Note: the guaranteed operating temperature range
of the Fieldbus Display is –20 to +60°C
This allows the BA488CF-F to be installed in all
Zones and to be used with most common industrial
gases.
WARNING installation in Zone 0
When installed in a Zone 0 potentially
explosive atmosphere requiring apparatus
of Category 1G, the fieldbus display 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.
3.3 Fieldbus connection
The BA488CF-F FOUNDATION™ fieldbus display
is powered and communicates via the fieldbus,
which is connected to terminals 1 and 2. These
terminals comply with the Fieldbus Intrinsically
Safe Concept (FISCO) defined in EN 60079 Part
27 which simplifies intrinsic safety system design.
The BA488CF-F may also be connected to non
FISCO compliant fieldbus segments by using the
entity concept to assess safety.
Terminals 1 and 2 of the BA488CF-F
FOUNDATION™ fieldbus FOUNDATION™
fieldbus display are not polarised and have the
following safety parameters:
Ui = 17.5V dc
Ii = 380mA dc
Pi = 5.32W
For non FISCO compliant segments, the safety
parameters of the power supply or isolator
powering the fieldbus segment must be equal to or
less than these figures.
The maximum equivalent capacitance and
inductance at terminals 1 & 2 of the BA488CF-F
Fieldbus Display are:
Ci = 1nF
Li = 8µH
To determine cable parameters for non FISCO
compliant segments, the sum of Ci and Li of all the
field devices should be subtracted from the
maximum cable parameters permitted by the
device powering the fieldbus segment.
3.4 External switches
For applications requiring operator inputs to be
made by large industrial push buttons, terminals
S1 to S7 facilitate external switches to be
connected to the Fieldbus Display. When external
switches are connected, the BA488CF-F may be
configured so that the front panel push buttons
continue to function or are disabled.

6
Terminals S1 to S7 have the following combined
output safety parameters:
Uo = 14.7V dc
Io = 146.7mA dc
Po = 0.58W
The switches and associated wiring connected to
the terminals must comply with the requirements
for simple apparatus. i.e. the switch must be
mechanically activated and have IP20 protection,
and both the switch and the wiring must be
capable of withstanding a 500V rms insulation test
to earth for one minute. Most industrial push
buttons and wiring satisfy these requirements.
The input safety parameters of terminals S1 to S7
are zero, therefore only switches or intrinsically
safe relays may be connected.
The total maximum permitted cable parameters for
all the cables connected to terminals S1 to S7 in a
IIC hydrogen gas must be less than:
Co = 0.22µF
Lo = 0.26mH
Although these parameters are not restrictive, for
reliable operation it is recommended that the
cables between the fieldbus display and the
external push buttons are less than 5m long.
3.5 Alarm outputs
Each of the six optional alarm outputs is a
separate galvanically isolated solid state switch.
The EC-Type Examination Certificate specifies that
under fault conditions the voltage, current and
power at each switch output will not exceed those
specified for simple apparatus in section 5.7 of EN
60079-11. This allows each of the BA488CF-F
alarm outputs to be connected to any intrinsically
safe circuit protected by a certified Zener barrier or
galvanic isolator providing that the output
parameters of each circuit are less than:
Uo = 28V dc
Io = 200mA
Po = 0.84W
The maximum equivalent capacitance and
inductance of each BA488CF-F alarm output is:
Ci = 40nF
Li = 20µH
To determine the maximum permissible cable
parameters, Ci and Li must be subtracted from the
maximum cable capacitance and inductance
specified by the system certificate of the circuit
connected to the switch.
3.6 Certification Label Information
The certification label is fitted in a recess on the
top outer surface of the enclosure. It shows the
ATEX certification information, a statement that the
instrument is a FISCO Field Device, plus BEKA
associates name and location. Non European
certification information may also be included.
4. SYSTEM DESIGN FOR HAZARDOUS
AREAS
4.1 FISCO Systems
The BA488CF-F FOUNDATION™ fieldbus display
may be connected to any FISCO compliant
fieldbus segment providing that the power supply
or isolator powering the segment can provide
25mA required by the BA488CF-F Display.
Fig 2 shows a typical fieldbus segment. To comply
with FISCO requirements, the power supply,
terminators, field devices and the interconnecting
cables must conform with IEC60079 part 27.
Fig 2 FISCO fieldbus system

7
4.2 Non FISCO Systems
If the BA488CF-F FOUNDATION™ fieldbus
display is to be connected to a fieldbus segment
that does not comply with FISCO requirements,
the safety parameters of the power supply and the
BA488CF-F must be compared using the entity
concept.
The maximum output safety parameters of the
device powering the fieldbus segment must be
equal to, or less than, the input safety parameters
of terminals 1 & 2 of the BA488CF-F
FOUNDATION™ fieldbus display, namely:
Ui = 17.5V dc
Ii = 380mA dc
Pi = 5.32W
The maximum permitted cable parameters for the
fieldbus segment must be reduced by the
equivalent internal capacitance Ci and inductance
Li of the BA488CF-F. The BA488CF-F equivalent
capacitance and inductance are very small and
make little practical difference.
Ci = 1nF
Li = 8µH
4.3 External switches
For applications requiring operator inputs to be
made by large industrial push buttons, terminals
S1 to S7 allow up to six external switches to be
connected to the Fieldbus Display. When external
switches are connected the front panel push
buttons may be operated in parallel or disabled –
see section 6.3.7
For installation in a hazardous area the switches
and associated wiring must comply with the
requirements for simple apparatus. i.e. the switch
must be mechanically activated and have IP20
protection, and both the switch and the wiring must
be capable of withstanding a 500V rms insulation
test to earth for one minute. Most industrial push
buttons and wiring satisfy these requirements.
Although the allowable cable parameters are large,
it is recommended that the cables are less than 5m
long.
If a safe area switch is to be connected to a
Fieldbus Display located in a hazardous area, the
switch contact must be transferred via a certified
intrinsically safe relay or a galvanic isolator having
zero output safety parameters as shown in Fig 3.
Fig 3 External push button switch in safe area
4.4 Alarm outputs
Each alarm output is a galvanically isolated single
pole solid state switch output as shown in Fig 4.
Fig 4 Equivalent circuit of each switch output
The outputs are polarised and current will only flow
in one direction. Odd numbered terminals should
be connected to the positive side of the supply.
Ron = 5Ω+ 0.7V
Roff = greater than 1MΩ
Note: Because of the series protection diode,
some test meters may not detect a closed alarm
output
WARNING
These Alarm Outputs should not be used
for critical safety applications such as an
emergency shut down system.
When the BA488CF-F FOUNDATION™ fieldbus
display is disconnected from the fieldbus, or the
fieldbus is de-energised all the alarm outputs will
open irrespective of how they have been
configured.

8
5. INSTALLATION
5.1 Location
The BA488CF-F FOUNDATION™ fieldbus display
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.
CAUTION
Special conditions apply for installation
in Zone 0, see section 3.2
Fig 5 shows the overall dimensions of the
BA488CF-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.
The BA488CF-F liquid crystal display has
maximum contrast when viewed from directly
ahead and slightly below the centre line of the
instrument.
Fig 5 BA488CF-F dimensions
5.2 Installation Procedure
a. Insert the BA488CF-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 until the
instrument is secure. 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(s) as shown in Fig 6. To simplify
installation, the terminals are removable so
that panel wiring can be completed before
the instrument is installed.
Fig 6 Installation and terminal connections

9
5.3 EMC
The BA488CF-F complies with the requirements of
the European EMC Directive 2004/108/EC. For
specified immunity all wiring should be in screened
twisted pairs with the screens connected to the
potential equalising network as recommended in
EN 60079-14.

10
6. DISPLAY & ALARM CONFIGURATION
In addition to loading the BA488CF-F
FOUNDATION™ fieldbus display Device
Description files onto the system host and defining
up to eight fieldbus variables that are to be
displayed, the instrument display and alarms, if
fitted, have to be configured. How much of this
configuration can be done via the fieldbus depends
upon the instrument version and the system host.
Parameters that can not be configured via the
fielldbus, may be set via the four front panel push
buttons
All the display and alarm configuration functions
are contained in an easy to use menu that is
shown in Fig 7. Where necessary the sub-menus
contain on-screen prompts to guide the user
through each adjustment.
When navigating through the configuration menu,
the push button(s) should be held until the required
screen is displayed.
6.1 Default configuration
Unless otherwise requested at the time of ordering,
BA488CF-F FOUNDATION™ fieldbus displays will
be supplied configured as follows:
Keys Both
Display brightness 100%
Display contrast 50%
Quick access menu On
Quick access menu code 0000
Configuration menu
access code. 0000
Screen Single variable
Number Format Auto
All alarms Disabled
Alarm activation Good data only
Alarm outputs N/C
Bargraph
Low 0
High 100
Input scaling
Zero offset 0
Gain factor 1
Status text On
Last input 8
Revision Revision 2
(2 x IS function
blocks)
6.2 Accessing the display configuration
menu
Throughout this manual push buttons are shown in
italics e.g. PE▼▲and legends displayed by
the instrument are shown within inverted commas
e.g. 'Enter Access Code'.
Operating the Pand Epush buttons simultaneously
accesses the display configuration menu. If the
BA488CF-F is not protected by an access code the
main menu will be displayed. If an access code
other than the default code 0000 has already been
entered, the BA488CF-F will request that the
access code be entered.
Using the ▼or ▲button set the first digit of the
code which will be flashing. Pressing Pwill transfer
control to the next digit, which should be adjusted in
the same way. When all four digits have been set,
pressing the Ebutton will enter the access code.
If the code is correct the main menu will be
displayed, if the code is incorrect ‘Invalid Code’ will
be displayed.
When entering an access code, timeout will occur
and the instrument will automatically return to the
operating mode ten seconds after a push button
was last operated. In all other menus, timeout
occurs after sixty seconds.
The structure of the display configuration menu is
shown in Fig 7. Navigation is achieved by
highlighting the required function using the ▼and
▲buttons and then operating the Pbutton to
display the selected function sub-menu, from which
a further selection or adjustment may be made.
Operating the Ebutton moves the display back up
one level.
A flashing highlight indicates that an option or
alphanumeric character may be selected using the
▼and ▲buttons and entered using the Ebutton.
If only one entry or adjustment can be made in a
sub-menu, the display will automatically move up
one menu level when the adjustment is entered. If
more than one adjustment can be made in a sub-
menu, the highlight may be moved to the second
variable using the ▼or ▲button after the first
setting has been entered. Operating the Pbutton
allows the second variable to be adjusted.
When multiple numeric or alpha characters are
adjusted e.g. an alarm setpoint or a tag legend, the
adjustment is made one digit at a time using the ▼
and ▲buttons. After the first flashing digit has been
set as required, the flashing highlight can be moved
to the next digit by operating the Pbutton. When all
digits have been set, operating the Ebutton will
enter the setting.
Following completion of the instrument
configuration, the Ebutton should be operated to
step the display back to the main menu. One more
operation of the Ebutton will then return the
BA488CF-F to the operating mode.

11
6.3 Configurable functions
This section provides an explanation of each
configurable function and should be read in
conjunction with Fig 7.
6.3.1 Screens (Display format)
The BA488CF-F can display up to eight fieldbus
variables. These are identified as IN_1 to IN_8.
The fieldbus variable that each one represents is
determined by the BA488CF-F configuration at the
fieldbus system host – see the FOUNDATION™
fieldbus Interface Guide.
This sub-menu allows one of eleven standard
display formats to be selected. The standard
formats contain one, two, three, four or eight
fieldbus variables some with bargraphs as shown
below.
The ‘Text Display’ option which enabled custom
formats to be created is depreciated i.e. still
available but no longer actively supported.
One variable
Two variables
Four variables
Eight variables
One variable + horizontal bargraph
Two variables + horizontal bargraphs
One variable + vertical bargraph
Two variables + vertical bargraphs
Three variables + vertical bargraphs
Four variables + vertical bargraphs
Eight variables + horizontal bargraphs
6.3.2 Input Settings
Note: Only included in Revision 1 instruments. Omitted
from Revision 2 instruments because these parameter
can be easily configured in the Display Transducer
Block.
The Input Setting function is divided into two
groups of sub-functions. The first, ‘BarLimits Src’
is included to maintain backwards compatible with
earlier firmware issues in which fieldbus variables
IN_7 and IN_8 were used to define all the
bargraph limits. This reduced the number of
fieldbus variables that could be displayed with

12
bargraphs from eight to six.
Version 2.3 firmware includes the improved ‘Per
Input’ option that enables the lower and upper
limits of a bargraph for each of the eight fieldbus
variables to be defined via the front panel push
buttons. It is recommended that ‘Per Input’ option
be used for new installations.
In addition to defining individual limits for up to
eight bargraphs, the second group of sub-functions
enables the decimal point position for each display
to be defined. Each of the eight fieldbus inputs
may also be offset and scaled before being
displayed which allows variables to be displayed in
alternative units of measurement.
Display = (Gain x Fieldbus variable) + Offset
The sub-functions for each input are:
‘Offset’ Adds a positive or negative offset to
the fieldbus variable before it is
displayed.
‘Gain’ Multiplies the fieldbus variable by a
factor before it is displayed.
‘Bar Lo’ Defines the bargraph lower limit
‘Bar Hi’ Defines the bargraph higher limit
‘Format’ Defines the position of the displayed
decimal point.
Six options are available:
Auto: Max resolution with selected
display format.
4 DP 4 digits on right of decimal point
3 DP 3 digits on right of decimal point
2 DP 2 digits on right of decimal point
1 DP 1 digit on right of decimal point
0 DP No decimal point
The total number of display digits available
depends upon the display screen selected – see
6.3.1
Standard
Screen Description Digits
1 1 variable 5, 7, 11 or 17*
2 2 variables 7
3 4 variables 5
4 8 variables 5
5 1 variable + H bar 5, 7, 11 or 17*
6 2 variables + H bars 7
7 1 variable + V bar 6
8 2 variables +V bars 4
9 3 variables + V bars 6
10 4 variables + V bars 4
11 8 variables + H bars 5
* Font automatically resizes in auto mode
If a negative number is likely to be displayed, a
digit must be allocated for the negative sign. If the
display overanges all the digits will display ‘?’.
For all options leading zeros are automatically
suppressed.
6.3.3 Tags
Note: Only included in Revision 1 instruments. Omitted
from Revision 2 instruments because tags can be easily
defined in the Display Transducer Block.
Each of the eight fieldbus variables may be
displayed with an individual tag that can contain up
to sixteen alphanumeric characters. This menu
allows these tags to be entered. After selecting
the required variable, the tag legend is entered
character by character using the ▼and ▲push
buttons. Numbers, upper & lower case letters and
symbols are available.
6.3.4 Units
Note: Only included in Revision 1 instruments. Omitted
from Revision 2 instruments because units of
measurement can be easily defined in the Display
Transducer Block.
Each of the eight fieldbus variables may be
displayed with units of measurement that can
contain up to eight alphanumeric characters. This
menu allows these units of measurement to be
entered. After selecting the required variable, the
unit of measurement is entered character by
character using the ▼and ▲push-buttons.
Numbers, upper & lower case letters and symbols
are available.
6.3.5 Alarms
Note: Alarm menus are only included when the
BA488CF-F is fitted with optional alarm outputs.
Outputs are locally activated from the fieldbus
variables and are configured via the instrument
menus and push buttons. They can not be
controlled via the fieldbus.
Each of the six alarms may be linked to any one of
the eight fieldbus variables displayed by the
BA488CF-F. Each alarm output can be
conditioned to function as a high or a low alarm, or
as a combined high and low alarm. The output can
be conditioned as normally open ‘N/O’, or normally
closed ‘N/C’ in the non-alarm condition.
Irrespective of settings alarm outputs will be open
when the instrument is not powered from the
fieldbus.
When an alarm is activated, the associated
fieldbus variable display flashes, i.e. alternates
between dark figures on a light background and
light figures on a dark background.

13
There are eight alarm-conditioning sub-menus.
6.3.5.1 Alarm summary
Shows to which fieldbus variable each alarm is
linked and how each alarm has been conditioned
i.e. high, low, or combined high & low alarm with
normally open or closed output. No adjustments
can be made in this sub-menu.
6.3.5.2 Alarm activation
Fieldbus variables that have not been validated are
displayed with dark characters on a light
background, and some screen formats also
contain a status indication. This sub-menu allows
the alarm outputs to be conditioned so that they
only operate with validated fieldbus data, or to
operate irrespective of data validity.
6.3.5.3 Alarm output
There is a separate sub-menu for each of the six
alarm outputs; these link the alarm to one of the
displayed fieldbus variables and define the alarm
function and the setpoints.
To link the alarm to a displayed variable, position
the cursor over the ‘IN_n’ field, press Pand using
the ▼or ▲button select the required input source.
Enter the selection by pressing the Ebutton.
Each alarm output can be N/O or N/C in the non-
alarm condition. To change the setting, position
the highlight over the ‘N/O’ or ‘N/C’ field, press P
and use the ▼or ▲button to toggle the setting.
Enter the selection by pressing the Ebutton.
Each alarm has three functions that can be
independently enabled to condition the output as a
low or high alarm, or as a combined low and high
alarm, either with or without hysteresis.
The required functions can be individually enabled
by positioning the highlight over the Enb/Dis
(Enabled/Disabled) column, pressing Pand
toggling the function to the required state, then
entering the selection by pressing the Ebutton.
Alarm setpoints are entered digit by digit. Place
the highlight over the setpoint to be adjusted and
press P;the flashing digit to be adjusted may then
be selected by again pressing P. When all the
digits have been adjusted, operating the Ebutton
enters the value and moves the menu up one
level.
The function of all alarms may be reviewed from
the alarm summary menu - see 6.3.5.1.
6.3.6 Display
6.3.6.1 Settings
The backlight brilliance and display contrast are
adjustable from this sub-menu.
6.3.6.2 Quick Access
This sub-menu enables the Quick Access Menu
which is described in sections 2.1 & 6.4 When
enabled, an operator can adjust the display
contrast and backlight brilliance without having
access to any other conditioning menus.
6.3.6.3 Access Code
Defines a four digit alphanumeric code that must
be entered to gain access to the Quick Access
Menu. Alpha characters are case sensitive.
Default code 0000 allows direct access without a
code.
6.3.6.4 Status Text
The two single variable screens 1 and 4 will show
the status of the FOUNDATION™ fieldbus variable
as ‘Good’ or ‘Bad’ if the Status Text function is
activated.
6.3.6.5 Last Input
This function allows the maximum number of
FOUNDATION™ fieldbus variables to be defined
so that unused inputs are skipped when the
display is scrolled in the operating mode.
6.3.7 Keys
The function of the front panel push buttons may
be transferred to the six optional external push
buttons, with or without disabling the BA488CF-F
front panel push buttons. The table below shows
the function of the BA488CF-F front panel and the
external push buttons for each of the four options
that may be selected in the Keys sub-menu.
For applications where the instrument is only
displaying 1, 2, 3, 4 or 8 variables on a single
screen, it is recommended that external buttons
are selected but not fitted. This will disable the
instrument front panel buttons, but still provide
access to the configuration menu, which may be
protected by a security code.

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6.3.8 Code
Defines the four digit alphanumeric code that must
be entered to gain access to the instrument
configuration menus. Alpha characters are case
sensitive. Default code 0000 allows direct access
without a code.
6.3.9 Unit Info
Displays the instrument model number and the
firmware version.
6.3.10 Defaults
This function enables the display and interface
board factory defaults to be restored. The function
blocks (Revision 1 or 2) should be selected to suit
the system host.
6.3.10.1 Display Defaults
This function restores the display defaults defined
in section 6.1.
CAUTION
Existing settings can not be recovered
after this function has been used.
6.3.10.2 Interface Board Defaults
This function restores the Fieldbus Interface Board
factory defaults.
CAUTION
Do not use this function when the
BA488CF-F is connected to an
operational fieldbus, as communication
will be terminated.
6.3.10.3 Revisions 1 and 2
Unless specified at the time of ordering, BA488CF-
F FOUNDATION™ fieldbus displays will be
supplied as Revision 2 instruments. i.e. two input
selector function blocks (2 x IS), but it can easily
be converted to a Revision 1 instrument using the
Default menu. i.e one multiple analogue output
function block (1 x MAO).
The BA488CF-F FOUNDATION™ fieldbus display
revision should be chosen so that the fieldbus
function blocks selected are supported by the
system host.
To change the BA488CF-F FOUNDATION™
fieldbus display revision, highlight the required
revision in the ‘Restore Defaults’ menu and follow
the screen prompts until ‘Defaults Loaded Now
power cycle the unit’ is displayed. To complete
the installation remove the BA488CF-F power
supply for a few seconds, when power is restored
the instrument will restart with the selected
revision.
6.4 Quick Access Menu
The Quick Access Menu allows an operator to
adjust the backlight brilliance and the display
contrast without having access to the other
configuration parameters.
The quick access menu is accessed by operating
the Pand ▲push buttons simultaneously. If the
Quick Access Menu is not protected by an access
code the contrast and brilliance controls will be
displayed immediately. If an access code other
than the default code 0000 has already been
entered, the BA488CF-F will request that the
access code be entered.
The backlight brilliance is adjusted using the ▼
and ▲push buttons. Operating the Ppush button
will transfer control to the display contrast
adjustment. When both are set as required,
operating the Ebutton will store both settings and
return the instrument to the operating mode.

15

16
7. PROGRAMMING
The ‘Text Display’ option which enabled custom
formats to be created is depreciated i.e. still
available but no longer actively supported.
8. MAINTENANCE
8.1 Fault finding during commissioning
If a BA488CF-F FOUNDATION™ fieldbus display
fails to function during commissioning the following
procedure should be followed:
Symptom Cause Check:
No Display Fieldbus not
powered 9 to 17.5V between
terminals 1 & 2.
No variables Fieldbus not
configured
BA488CF-F does
not have correct
protocol
Instrument
configuration at
host
That the
BA488CF-F
protocol is the
same as the
fieldbus.
i.e. Fieldbus
Foundation or
Profibus PA.
Wrong variable
displayed Wrong screen selected Other screens by operating Up or
Down button
Display shows
‘?????’ Display Overange Number Format see section 6.3.2
No backlight Brilliance turned
down Setting in display menu
Low or excessive
contrast Incorrect contrast setting Setting in display menu
Displayed
variable is
inverted
i.e. light digits on
dark background
Variable has
‘bad’ status Configuration and instrument
supplying
variable
Displayed
variable is
flashing
Associated alarm
has been
activated
Setpoints
Bargraph on
standard display
format is shown
dotted
Displayed
fieldbus variable
is outside
bargraph limits or
data is ‘bad’
Bargraph limits
see section 6.3.2
8.2 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 BA488CF-F fails after it has been functioning
correctly, the table shown in section 8.1 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.
8.3 Servicing
We recommend that faulty BA488CF-F
FOUNDATION™ fieldbus displays are returned to
BEKA associates or to our local agent for repair.
8.4 Routine maintenance
The mechanical and electrical condition of the
instrument should be regularly checked. Initially
annual inspections are recommended, although
the inspection frequency should be adjusted to suit
the environmental conditions.
8.5 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.
8.6 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.

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9. ACCESSORIES
9.1 Tag number
The BA488CF-F can be supplied with a thermally
printed tag number on the rear panel. This tag
number is not visible from the front of the
instrument after installation.
9.2 FOUNDATION™ fieldbus Interface Guide
The BEKA FOUNDATION™ fieldbus Interface
Guide which may be downloaded from the BEKA
web site at www.beka.co.uk contains conditioning
information for all BEKA FOUNDATION™ fieldbus
products.

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10. INDEX
Subject Section
Alarms 6.3.5
Activation 6.3.5.2
Output 3.5; 6.3.5.3; 4.4
Summary 6.3.5.1
ATEX Directive 3.1
Backlight 6.3.6.1
Bargraph Limits 6.3.2
Certificates
EC-Type Examination 3.1
Label 3.6
Configuration menu Fig 7
Controls 2.1
Code 6.3.8
Decimal points 6.3.2
Default settings 6.1; 6.3.10
Display 6.3.6
Access code 6.3.6.3
Settings 6.3.6.1
Quick access 6.3.6.2; 6.4
EMC 5.3
External switches 3.4; 4.3; 6.3.7
Fault finding
During commissioning 8.1
After commissioning 8.2
Fieldbus
Connection 3.3
Interface Guide 9.3
Revisions 1 & 2 6.3.10.3
FISCO 3.3; 4.1
FOUNDATION™ fieldbus1; 2
FM Approval Appendix 1
Gas groups 3.2; Appendix 1; 2
Guarantee 8.5
IECEx Certification Appendix 2
Input Scaling 6.3.2
Installation 5.
Intrinsic safety 3; Appendix 1; 2
Keys 6.3.7
Last input 6.3.6.4
Location 5.1
Appendix 1; 2
Maintenance 8.
Routine 8.4
Subject Section
Notified Body 1; 3.1
Number Format 6.3.2
Programming 7.
Guide 7; 9.2
Profibus PA 1
Quick access menu 6.3.6.2; 6.4
Revisions 1 & 2 1; 6.3.10.3
Servicing 8.3
Screens (display format) 6.3.1
Status text 6.3.6.4
Tags 6.3.3
Tag number 9.1
T rating 3.2; Appendix 1; 2
Terminal numbers Fig 6
Units (of measurement) 6.3.4
Unit Info (firmware version) 6.3.9
Zones 3.2; Appendix 1; 2

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APPENDIX 1
FM approval for use in USA
A1.0 Factory Mutual Approval
For installations in the USA, the BA488CF-F
FOUNDATION™ fieldbus display and optional
alarms have been approved intrinsically safe and
nonincendive by FM Approvals, project
identification 3022546. Copies of the Certificate of
Compliance are available from BEKA associates.
A1.1 Intrinsic safety approval
The BA488CF-F is approved to the FM Class 3610
intrinsic safety standard for use in indoor
hazardous (classified) locations. Installations must
comply with BEKA associates Control Drawing
CI480-17, 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.
The BA488CF-F has a T4 rating at ambient
temperatures up to +60
o
C and may be used with
the following gases and dusts:
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 entity parameters are identical to the
ATEX parameters and, like the ATEX certification,
confirm that terminals 1 & 2 of the BA488CF-F
comply with the requirements for a FISCO Field
Device specified in IEC60079-27. The intrinsically
safe circuits shown in Figs 2 and 3 of this manual
may therefore be used for installations in the USA,
providing the fieldbus power supply, terminators,
Zener barriers and galvanic isolators are FM
Approved and comply with BEKA associates
Control Drawing CI480-17. The FM Approval also
allows the BA488CF-F to be connected to non-
FISCO systems using the entity concept – see
section 4.2 of this manual.
A1.2 Nonincendive approval
The BA488CF-F FOUNDATION™ fieldbus display
is Class 3611 nonincendive approved by Factory
Mutual allowing it to be installed in Division 2
indoor hazardous (classified) locations without the
need for Zener barriers or galvanic isolators.
Installations must comply with the BEKA
associates Control Drawing CI480-18, which is
attached to this Appendix, and with the National
Electrical Code ANSI/NFPA70.
The FM Nonincendive Approval also allows the
instrument to be connected to any FNICO
compliant fieldbus segment powered by FM
Approved Associated Nonincendive Field Wiring
Apparatus.
The BA488CF-F has a T4 rating at ambient
temperatures up to +60
o
C and may be used with
the following gases and dusts:
Nonincendive
Division 2
Class I Group A & B
Group C
Group D
Zone 2
Class I Group IIC
Group IIB
Group IIA

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