BEKA FOUNDATION BA484DF-F User manual

Issue: 15
27th March 2019
BA484DF-F
FOUNDATION™ fieldbus
Intrinsically safe
Field mounting display
Issue: 15
For version 3 instruments with
revision 4.03 firmware

1. Description
1.1 Documentation
1.2 Version 4.03 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. Configuration
6.1 Display transducer block
6.2 Screen selection and alarm
configuration.
6.3 Default configuration
6.4 Accessing instrument configuration
menu.
6.5 Screen selection
6.6 Alarm configuration
6.6.1 Alarm summary
6.6.2 Alarm activation
6.6.3 Alarm output
6.7 Display configuration
6.7.1 Settings
6.7.2 Quick access
6.7.3 Access code
6.7.4 Status text
6.7.5 Last input
6.7.6 Keys
6.7.7 Code
6.7.8 Unit info
6.7.9 Defaults
6.7.10 Display defaults
6.7.11 Interface board defaults
6.8 Quick access menu
7. Maintenance
7.1 Fault finding during commissioning
7.2 Fault finding after commissioning
7.3 Servicing
7.4 Routine maintenance
7.5 Guarantee
7.6 Customer comments
8. Accessories
8.1 Tag plate
8.2 Pipe mounting kits
8.3 FOUNDATION™ fieldbus Interface
Guide.
Appendix 1
ATEX dust certification
Appendix 2
FM Approval for use in the USA
Appendix 3
IECEx certification
2
CONTENTS
The BA484DF-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 BA484DF-F display is an intrinsically safe
instrument that can simultaneously 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 communication protocol is shown
on a label inside the terminal cover. 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 BA484DF-P for use on PROFIBUS PA
networks.
This instruction manual describes revision 3
BA484DF-F Foundation fieldbus displays which
were introduced in January 2019. Revision 3
displays have been verified in the FieldComm Labs
as compliant with ITK 6.3.
Instruction manuals for the earlier revision 1 and 2
instruments may be downloaded from the
superseded documentation section of the BEKA
website.
Most of the BA484DF-F display parameters are
configured on-site via the fieldbus. Screen format
selection and alarm configuration is performed
using an internal menu and the instrument's front
panel push buttons.
Up to eight process variables can be displayed
using the two Input Selector function blocks.
The required Device Description files, which may
be downloaded from either the FieldComm or the
BEKA websites, depend upon which BA484DF-F
FOUNDATION™ fieldbus display revision is
selected.
Eleven selectable standard display screen formats
enable one, two, three, four or eight process
variables, some with bargraphs to be displayed on
one screen.
The BA484DF-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 cannot be controlled via the
fieldbus.
The instrument has been issued with an EC-Type
Examination Certificate by Notified Body Intertek
Testing and Certification Ltd for gas and dust
atmospheres which has been used to confirm
compliance with the European Potentially
Explosive Atmospheres Directive 2014/34/EU.
For use in the USA the instrument has intrinsic
safety and nonincendive FM Approval – see
Appendix 2, plus IECEx intrinsic safety approval
for international applications – see Appendix 3.
Housed in a robust IP66 glass reinforced polyester
(GRP) enclosure with a toughened glass window,
the BA484DF-F FOUNDATION™ fieldbus display
is surface mounting, or may be pipe mounted
using one of the accessory kits.
1.1 Documentation
This instruction manual describes system design,
conditioning and installation of the BA484DF-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 4.03 firmware
Updated firmware was released in January 2019
which includes the following key features:
11 standard screens
Multiple bargraph limits
Individual input scaling
Two 4-input Input Selector function blocks:
Last variable parameter prevents display of
unused inputs.
Fieldbus compliance verified to ITK 6.3
Option added to remove status text from
single variable screens.
The instrument’s firmware version can be
established using the ‘Unit Info’ function in the
main configuration menu – see section 6.7.8 of this
manual.
3

2. OPERATION
Fig 1 shows a simplified block diagram of the
BA484DF-F FOUNDATION™ fieldbus display.
When the optional alarms are not fitted, the
instrument only requires a two-wire connection to
the fieldbus.
Parameters that cannot be configured via the
fieldbus can be configured via the four front panel
push buttons. Menus enable the required standard
display screen format to be selected.
The optional alarms are locally activated from the
fieldbus variables and can only be configured and
the setpoints adjusted using the BA484DF-F push
buttons. The alarms cannot be configured or
controlled via the fieldbus.
Description Files for the BA484DF-F
FOUNDATION™ fieldbus display may be
downloaded from either the FieldComm or from the
BEKA associates websites.
Fig 1 Simplified block diagram of BA484DF-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
BA484DF-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 BA484DF-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 6.7.5.
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.
4

3. INTRINSIC SAFETY CERTIFICATION
3.1 ATEX certificate
The BA484DF-F has been issued with an EC-Type
Examination Certificate by Notified Body Intertek
Testing and Certification (ITS) which has been
used to confirm compliance with the European
ATEX Directive 94/9/EC for Group II, Category 1,
gas and dust atmospheres, 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 installations in explosive
gas atmospheres which conform with
IEC 60079-14 Electrical Installations design,
selection and erection. 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
3.2 Zones, gas groups and T rating
The BA484DF-F has been issued with EC Type
Examination certificate ITS04ATEX22778
confirming that it complies with the requirements
for Group II Category 1 G Ex ia IIC T4 (Tamb –40
to 60ºC). When connected to a suitable certified
system the BA484DF-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 450oC
T2 300oC
T3 200oC
T4 135oC
At an ambient temperature between –40 and
+60ºC.
Note: the guaranteed operating temperature range
of the Fieldbus Display is –20 to +60ºC
This allows the BA484DF-F FOUNDATION™
fieldbus display to be installed in all Zones and to
be used with most common industrial gases.
3.3 Fieldbus connection
The BA484DF-F 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 BA484DF-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 BA484DF-F
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 BA484DF-F
Fieldbus Display is:
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 BA484DF-F. When external
switches are connected, the BA484DF-F may be
configured so that the front panel push buttons
continue to function or are disabled.
5

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 mechnically activated
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 switch is less than 5m long.
3.5 Alarm outputs
Each of the six optional alarm outputs is a
separate galvanically isolated, solid state, single
pole 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
Clause 5.7 of EN 60079-11. This allows each of
the BA484DF-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 BA484DF-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.
The instrument serial number and year of
manufacture are recorded on a separate label
inside the terminal compartment.
4. SYSTEM DESIGN FOR HAZARDOUS
AREAS
4.1 FISCO Systems
The BA484DF-F FOUNDATION™ fieldbus display
may be connected to any FISCO compliant
fieldbus segment providing the segment can
provide the additional 25mA required to operate
the Fieldbus 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 the requirements
specified in IEC 60079-11.
Fig 2 FISCO fieldbus system
4.2 Non-FISCO Systems
If the BA484DF-F 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 Fieldbus
Display should be compared using the entity
concept.
6

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 BA484DF-F 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 BA484DF-F. The BA484DF-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 6.7.6
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 = 5+ 0.7V
Roff = greater than 1M
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 BA484DF-F is disconnected from the
fieldbus, or the fieldbus is de-energised, all the
alarm outputs will open irrespective of how they
have been configured.
7

5. INSTALLATION
5.1 Location
The BA484DF-F FOUNDATION™ fieldbus display
is housed in a robust IP66 glass reinforced
polyester (GRP) enclosure incorporating an
armoured glass window and stainless steel fittings.
It is suitable for exterior mounting in most industrial
environments, including off-shore and waste water
treatment installations. Please consult BEKA
associates if high vibration is anticipated.
The BA484DF-F enclosure is surface mounting.
Accessory kits described in sections 8.2 of this
manual enable the instrument to be mounted onto
a vertical or horizontal pipe.
The field terminals and the two mounting holes are
located in a separate compartment with a sealed
cover allowing the instrument to be installed
without exposing the display assembly.
The BA484DF-F earth terminal is connected to the
carbon loaded GRP case. If the case is not bolted
to a post or structure connected to the plant’s
potential equalising network, the instrument’s earth
terminal should be connected to the potential
equalising network as recommended in
EN 60079-14.
The BA484DF-F enclosure is supplied with a
bonding plate to ensure electrical continuity
between the three conduit / cable entries.
5.2 Installation Procedure
Fig 5 illustrates the instrument installation
procedure.
a. Remove the instrument terminal cover by
unscrewing the two captive 'A' screws.
b. Mount the instrument on a flat surface and
secure with two M6 screws through the 'B'
holes. Alternatively use one of the mounting
kits described in section 8.2
c. Remove the temporary hole plug and install
an appropriate IP rated cable gland or
conduit fitting. If more than one entry is
required, one or both of the IP66 stopping
plugs may be replaced with an appropriate IP
rated cable gland or conduit fitting.
d. Connect the field wiring to the terminals as
shown in Fig 6.
e. Replace the instrument terminal cover and
evenly tighten the two 'A' screws.
Fig 5 BA484DF-F installation procedure
5.3 EMC
The BA484DF-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 connected
to the potential equalising network as
recommended in IEC 60079-14.
8

Fig 6 Dimensions and terminal connections
9

6. CONFIGURATION
6.1 Display transducer block
In addition to loading the BA484DF-F
FOUNDATION™ fieldbus display Device
Description files onto the system host, the eight
inputs require individual configuration.
Each of the four inputs of the two Display
Transducer Blocks has the following fieldbus
configurable parameters:
Bargraph_Min Defines bargraph lower limit
Bargraph_Max Defines bargraph higher limit
Display_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
Zero_offset Adds a positive or negative
offset to the fieldbus variable
before it is displayed.
Gain_factor Multiplies the fieldbus variable
by a factor before it is
displayed.
Display = (Gain factor x fieldbus variable) + Offset
Descriptor Displayed fieldbus variable
identification. Up to 16
characters can be accepted but
the number displayed varies
depending upon the display
screen selected.
Units Displayed units of
measurement. Up to 8
characters can be accepted,
but the number displayed
varies depending upon the
display screen selected.
IN_value Fieldbus value to be displayed
IN_value_status Indicates validity of displayed
fieldbus value.
6.2 Screen selection and alarm configuration
Screen selection and, if fitted, alarm configuration
is performed 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.
6.3 Default configuration
Unless otherwise requested at the time of ordering,
BA484DF-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 3
(2 x IS function
blocks)
10

6.4 Accessing the instrument 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 E
push buttons simultaneously accesses the display
configuration menu. If the BA484DF-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
BA484DF-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 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
BA484DF-F to the operating mode.
11

6.5 Screen selection
The BA484DF-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 BA484DF-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.
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
12

6.6 Alarm configuration
Note:Alarm menus are only included when the
BA484DF-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 cannot be
controlled via the fieldbus.
Each of the six alarms may be linked to any one of
the eight fieldbus variables displayed by the
BA484DF-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.
There are eight alarm-conditioning sub-menus.
6.6.1 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.
6.6.2 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.
6.6.3 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 E
button.
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 6.6.1.
13

6.7 Display configuration
6.7.1 Settings
The backlight brilliance and display contrast are
adjustable from this sub-menu.
6.7.2 Quick Access
This sub-menu enables the Quick Access Menu
which is described in sections 2.1 & 6.8 When
enabled, an operator can adjust the display
contrast and backlight brilliance without having
access to any other conditioning menus.
6.7.3 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.
6.7.4 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.
6.7.5 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.
6.7,6 Keys
The function of the front panel push buttons may
be transferred to the six optional external push
buttons, with or without disabling the BA484DF-F
front panel push buttons. The table below shows
the function of the BA484DF-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.
6.7.7 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.
6.7.8 Unit Info
Displays the instrument model number and the
firmware version.
6.7.9 Defaults
This function enables the display and interface
board factory defaults to be restored.
6.7.10 Display Defaults
This function restores the display defaults defined
in section 6.3.
CAUTION
Existing settings cannot be recovered
after this function has been used.
6.7.11 Interface Board Defaults
This function restores the Fieldbus Interface Board
factory defaults.
CAUTION
Do not use this function when the
BA484DF-F is connected to an
operational fieldbus, as communication
will be terminated.
6.8 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 BA484DF-F will request that the
access code be entered.
The display 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.
14

15

7. MAINTENANCE
7.1 Fault finding during commissioning
If a BA484DF-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
Instrument
configuration at
host
Wrong variable
displayed
Wrong screen
selected
Other screens by
operating Up or
Down button
Display shows
‘?????’
Display
overrange
Number format
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
7.2 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 BA484DF-F fails after it has been functioning
correctly, the table shown in section 7.1 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.
7.3 Servicing
We recommend that faulty BA484DF-F
FOUNDATION™ fieldbus displays are returned to
BEKA associates or to our local agent for repair.
7.4 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.
7.5 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.
7.6 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.
16

8. ACCESSORIES
8.1 Tag plate
The BA484DF-F FOUNDATION™ fieldbus display
can be supplied with a blank or custom engraved
stainless steel plate secured by two screws to the
front of the instrument enclosure. This plate can
accommodate:
1 row of 9 alphanumeric characters 10mm high
or 1 row of 11 alphanumeric characters 7mm high
or 2 rows of 18 alphanumeric characters 5mm
high
8.2 Pipe mounting kits
Two pipe mounting kits are available for securing
the BA484DF-F to a horizontal or vertical pipe.
BA392D Stainless steel bracket secured by two
worm drive hose clips for 60 to 80mm
outside diameter pipes.
BA393 Heavy duty stainless steel bracket
secured by a single 'V' bolt. Will clamp
to any pipe with an outside diameter
between 40 and 80mm.
8.3 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.
17

APPENDIX 1
ATEX dust certification
A1.0 ATEX dust certification
In addition to ATEX certification permitting
installation in explosive gas atmospheres which is
described in the main section of this instruction
manual, the BA484DF-F FOUNDATION™ fieldbus
display is available ATEX certified for use in the
presence of combustible dusts. If ATEX dust
certification is required it must be requested when
the BA484DF-F FOUNDATION™ fieldbus display
is purchased.
WARNING
Before installing a BA484DF-F Fieldbus
Display in the presence of a combustible
dust, ensure that the certification
information label which is located on the
top of the instrument specifies dust
certification - see section A1.2
A1.1 Zones and Maximum Surface
Temperature
The BA484DF-F has been ATEX certified as
Group II, Category 1 D apparatus Tamb = -40 to
60ºC, with a Maximum Surface Temperature of
125ºC. When installed as specified by
IEC 60079-14, the Fieldbus Display may be
installed in:
Zone 20 explosive atmosphere in the
form of a cloud of
combustible dust in air is
continuously present, or for
long periods or frequently.
Zone 21 explosive atmosphere in the
form of a cloud of
combustible dust in air is
likely to occur occasionally
in normal operation.
Zone 22 explosive atmosphere in the
form of a cloud of
combustible dust in air is not
likely to occur in normal
operation, but if it does
occur, will only persist for a
short period.
Be used with dusts having a Minimum Ignition
Temperature of:
Dust cloud 188ºC
Dust layer on BA484DF-F 200ºC
up to 5mm thick
Dust layer on BA484DF-F Refer to
over 5mm thick. EN 60079-14
At an ambient temperature between -40 and +60ºC
Note: Operating temperature range of BA484DF-F
is –20ºC and +60ºC.
A1.2 Certification Label Information
The certification label is fitted in a recess on the
top outer surface of the enclosure. It shows the
ATEX dust certification information including the
maximum surface temperature and ingress
protection, plus the ATEX gas certification
information. Non European information may also
be shown.
The instrument serial number and date of
manufacture are recorded on a separate label
inside the terminal compartment.
A1.3 Calibration & maintenance
The ATEX dust certification relies on the
BA484DF-F FOUNDATION™ fieldbus display
enclosure being dust-tight. Therefore the control
and terminal covers should only be removed when
dust cannot enter the instrument enclosure. Before
replacing the control and terminal covers ensure
that the sealing gaskets are undamaged and are
free from foreign bodies.
18

APPENDIX 2
FM approval for use in the USA
A2.0 Factory Mutual Approval
For installations in the USA, the BA484DF-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.
The FM Approved version of the BA484DF-F
Fieldbus Display is identical to the ATEX version
except the three M20 x 1,5 tapped cable entries
are replaced by three plain unthreaded 22.25mm
diameter entries. Approved hubs and glands are
listed in note 8 of Control Drawing CI480-17 and
note 7 of Control Drawing CI480-18. The
certification label on the FM Approved version
includes ATEX gas certification information so that
the Fieldbus Display may be used in systems
covered by either authority.
A2.1 Intrinsic safey approval
The BA484DF-F is approved to the FM Class 3610
intrinsic safety standard for use in indoor and
outdoor 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 BA484DF-F has a T4 rating at ambient
temperatures up to +60oCandmaybeusedwith
the following gases and dusts:
Intrinsic Safety
Division 1 or 2
Class I Group A & B
Group C
Group D
Class II Group E, F & G
Class III
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 BA484DF-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 BA484DF-F to be connected to non-
FISCO systems using the entity concept – see
section 4.2 of this manual.
A2.2 Nonincendive approval
The BA484DF-F FOUNDATION™ fieldbus display
is Class 3611 nonincendive approved by Factory
Mutual allowing it to be installed in Division 2
indoor and outdoor 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 BA484DF-F has a T4 rating at ambient
temperatures up to +60oCandmaybeusedwith
the following gases and dusts:
Nonincendive
Division 2
Class I Group A & B
Group C
Group D
Class II Groups E, F & G
Class III
Zone 2
Class I Group IIC
Group IIB
Group IIA
19

20
HAZARDOUS (CLASSIFIED) LOCATION UNCLASSIFIED LOCATION
EQUIPMENT
LOCATION
HAZARDOUS
NON
SEE NOTE 2
SEE NOTE 5
SEE NOTE 5
SEE NOTE 5
SEE NOTE 5
SEE NOTE 5
SEE NOTE 5
A9
ALARM
ALARM
OPTIONAL
OPTIONAL
A12
A11
A10
BA484DF or
BA488CF
SEE NOTE 7 & 8
S7
BA484DF LOCATIONS:
Class I, Division 1, Groups A, B,C, D
Class II, Division 1, Groups E, F & G
Class III
Class I, Zone 0, Group IIC
BA488CF LOCATIONS:
Class I, Division 1, Groups A, B,C, D
Class I, Zone 0, Group IIC
SEE
NOTE 1
BA484DF and BA488CF
Entity Parameters
Terminals 1 & 2
Ui = 17.5V Uo = 0
Ii = 380mA dc Io = 0
Pi = 5.32W Po = 0
Ci = 1nF
Li = 8µH
These terminals comply
with The Intrinsically Safe
Concept (FISCO) defined by
IEC 60079-27
Terminals S1 to S7
(combined parameters)
Ui = 0V Uo = 14.7V dc
Ii = 0mA Io = 146.7mA dc
Pi = 0W Po = 0.58W
Ci = 0.54µF Co = 0.08µF
Li = 0.3mH Lo = 1.1mH
Terminals A1 & A2; A3 & A4;
A5 & A6; A7 & A8; A9 & A10
and A11 & A12
Ui = 28V dc Uo = 1.49V dc
Ii = 200mA dc Io = 1µA dc
Pi = 0.84W Po = 3µW
Ci = 0.04µF
Li = 0.02mH
A7
OPTIONAL
ALARM A8
A5
OPTIONAL
ALARM A6
A3
OPTIONAL
ALARM A4
A1
OPTIONAL
ALARM A2
S6
S5
S4
S3
S2
S1
SEE NOTE 6
OPTIONAL
EXTERNAL
SWITCHES
2
1
SEE NOTE 4
FIELDBUS
SEE NOTE 10
SEE
NOTE 11