BEKA BA484DF-P User manual

Issue: 3
8th December 2011
BA484DF-P
PROFIBUS PA
Intrinsically safe
Field mounting
Fieldbus Display
Issue: 3

2
1. Description
1.1 Documentation
1.2 Version 2.0 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 Sysems
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 Default
6.3.11 Instrument address
6.4 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 Fieldbus Display Programming Guide.
8.4 Fieldbus Interface Guides
9. Index
Appendix 1
ATEX dust certification
Appendix 2
FM Approval for use in the USA
Appendix 3
IECEx certification
CONTENTS
The BA484DF-P PROFIBUS display is CE marked to show compliance with the
European Explosive Atmospheres Directive 94/9/EC
and the European EMC Directive 2004/108/EC

3
1. DESCRIPTION
The BA484DF-P PROFIBUS Display is an
intrinsically safe instrument that can
simultaneously display up to eight PROFIBUS PA
process variables, together with their units of
measurement and tag information. The instrument
is bus powered so no additional power supply is
required.
Order Communication Function
Code Protocol Blocks
BA484DF-P PROFIBUS PA Eight Analogue
outputs (8 x AO)
Six Digital inputs
(6 x DI)
The instrument’s communications protocol is
shown on a label inside the terminal cover. The ‘-P’
order code suffix also indicates the protocol but is
not shown on the instrument certification label.
There is an alternative version of the fieldbus
display, order code BA484DF-F for use on
FOUNDATION™ fieldbus systems.
Configuration may be performed by either a DPV 0
user PRM data download, or by a DPV 1
configurator and if required the instrument address
may be entered via the instrument’s front panel
push buttons. The required GSD files are available
for downloading from both the PROFIBUS and
BEKA websites.
Eleven selectable standard display formats enable
one, two, three, four or eight process variables,
some with bargraphs to be displayed
simultaneously on one screen.
The four front panel push buttons that control the
instrument display may also be used for returning
operator acknowledgements, thus enabling the
BA484DF-P PROFIBUS Display to function as a
simple operator interface. If larger industrial push
buttons are required for entering these
acknowledgements, up to six external switches
may be connected to the BA484DF-P. These
switch inputs may also be used for returning the
status of plant contacts to the host using the DI
function blocks.
The BA484DF-P PROFIBUS 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 menus 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 explosive gas and combustible dust
atmospheres. ATEX dust certification is an option
– see Appendix 1.
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-P 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-P
PROFIBUS display. For detailed commissioning
information please refer to the PROFIBUS
Interface Guide that can be downloaded from the
BEKA website www.beka.co.uk
1.2 Version 3.0 firmware
This manual describes BA484DF-P PROFIBUS
displays employing version 3.0 firmware that was
released in July 2010 and is not backwards
compatible with earlier versions.
Version 3.0 firmware provides
Addition of (6 x DI) function blocks to return
switch status to host.
Fieldbus address entry via instrument push
buttons.
Addition of DPV 0 configuration
Addition of two standard screens allowing
eight fieldbus variables to be simultaneously
displayed.
Removal of text display facilities
When using the ▼or ▲button to select
input, or groups of inputs to be displayed,
unused inputs can now be skipped.
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. Version 3.0 firmware is shown as
SW480F-02-300.
For BA484DF-P PROFIBUS displays employing
version 2.0 firmware, please refer to the BA484DF-
P Intrinsically safe field mounting fieldbus display
Issue 10 manual dated 8th May 2006 which may be
downloaded from the obsolete products section of
the BEKA website.

4
2. OPERATION
Fig 1 shows a simplified block diagram of the
BA484DF-P PROFIBUS display. When the
optional alarms and external switches are not
used, the instrument only requires a two-wire
connection to the fieldbus.
How much of the BA484DF-P PROFIBUS Display
configuration can be performed via the fieldbus
depends upon the system host. Parameters that
can not be configured via the fieldbus can be set
using the configuration menu shown in Fig 7 and
the four front panel push buttons.
Fig 1 Simplified block diagram of BA484DF-P
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-P PROFIBUS display has been
configured and the number of process variables
that are to be displayed. If one fieldbus variable
per screen has been configured and eight
variables are to be displayed, eight screens will be
present; if two fieldbus variables per screen have
been configured and six variables are to be
displayed, three screens will be available.
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.

5
3. INTRINSIC SAFETY CERTIFICATION
3.1 ATEX certificate
The BA484DF-P PROFIBUS display has been
issued with an 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 and
dust 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, please see BEKA Declaration of
Conformity for current conformity.
This manual describes installations in explosive
gas atmospheres 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.
For use in the presence of combustible dust,
please refer to Appendix 1 that describes
installations complying with EN 61241: Part 14.
3.2 Zones, gas groups and T rating
The BA484DF-P PROFIBUS display 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) specified in the ATEX
Directive. When connected to a suitable certified
system the BA484DF-P 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-P PROFIBUS display to
be installed in all Zones and to be used with most
common industrial gases.
3.3 Fieldbus connection
The BA484DF-P PROFIBUS 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-P 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-P 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-P
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 Fieldbus Display. When external
switches are connected, the BA484DF-P
PROFIBUS Display 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 mechanically 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 section 5.7 of
EN 60079-11. This allows each of the BA484DF-P
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-P 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 certificate of the circuit connected
to the alarm output.
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-P PROFIBUS display may be
connected to any FISCO compliant fieldbus
segment, providing the segment can provide the
additional 25mA required to operate the
PROFIBUS 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 EN 60079 part 27.
Fig 2 FISCO fieldbus system
4.2 Non-FISCO Systems
If the BA484DF-P PROFIBUS 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
PROFIBUS Display should be compared using the
entity concept.

7
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-P PROFIBUS
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-P. The BA484DF-P 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
BA484DF-P PROFIBUS 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-P 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 BA484DF-P PROFIBUS 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-P 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-P 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
potential equalising network, the instrument’s earth
terminal should be connected to the potential
equalising network as recommended in
EN 60079-14.
The BA484DF-P 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 dust seals from the
three cable entries and install the required
glands, conduit fittings or blanking plugs.
Note: The temporary dust seals fitted for
transit do not maintain the IP66 protection of
the BA484DF-P enclosure.
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-P installation procedure
5.3 EMC
The BA484DF-P 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.

9
Fig 6 Dimensions and terminal connections

10
6. DISPLAY & ALARM CONFIGURATION
In addition to loading the BA484DF-P PROFIBUS
display GSD files onto the system host and
defining up to eight fieldbus variables that are to be
displayed, the instrument address, display and
alarms, if fitted, have to be configured. How
much of this configuration can be performed via
the fieldbus depends upon the system host.
Parameters that can not be configured via the
fieldbus, 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,
BA484DF-P PROFIBUS Displays will be supplied
configured as follows:
Address 126
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
6.2 Accessing the display configuration
menus
Throughout this manual the four BA484DF-P push
buttons are identified P E ▼▲, 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 BA484DF-P 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-P will
request that the access code be entered.
Using the ▼or ▲button adjust 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 E
button 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-P 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. See section 6.3.11 for
entering the instrument’s PROFIBUS PA address.
6.3.1 Screens (Display format)
The BA484DF-P can display up to eight fieldbus
variables that are identified as IN_1 to IN_8. The
fieldbus variable that each one represents is
determined by the BA484DF-P configuration at the
fieldbus system host - see the PROFIBUS
Fieldbus Interface Guide which may be
downloaded from the BEKA website.
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
6.3.2 Input Settings
Each of the eight fieldbus variable inputs may be
scaled before being displayed as shown below.
Display = (Gain x Fieldbus variable) + Offset
The sub-functions for each of the eight inputs 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
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, apart from the zero in
front of a decimal point, are automatically
suppressed.
6.3.3 Tags
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
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
Alarm menus are only included when the BA484DF-P
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
BA484DF-P. 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 all 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.
6.3.5.1 Alarm Summary
Shows to which PROFIBUS 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 via this sub-menu.

13
6.3.5.2 Alarm Activation
PROFIBUS 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 PROFIBUS 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 highlight 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 Pand
use the ▼or ▲button to toggle the setting. Enter
the selection by pressing the Ebutton.
Each alarm output 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 and 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 PROFIBUS 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
PROFIBUS 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 four of the six optional external
push buttons, with or without disabling the
BA484DF-P front panel push buttons. The table
below shows the function of the BA484DF-P front
panel and the external push buttons for each of the
four options that may be selected in the Keys sub-
menu.
* Apart from when ‘Internal+Port’ is selected, the Key_Status
does not function when the instrument is in the configuration
menu.
The fourth option ‘Internal + Port’ allows the front
panel push buttons to be used for controlling the
BA484DF-P PROFIBUS display and the optional
external push buttons to independently enter
operator acknowledgements or controls. This
option also allows the status of plant mechanical
switches to be returned to the host using the DI
function blocks.
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.

14
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
software version.
6.3.10 Defaults
This function enables the display and interface
board factory defaults to be restored.
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
BA484DF-P is connected to an
operational PROFIBUS network, as
communication to the display will be
terminated.
6.3.11 Instrument address
Enables the required three digit PROFIBUS
address to be entered digit by digit using the
instrument’s push buttons.
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 BA484DF-P PROFIBUS display 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.

15

16
7. MAINTENANCE
7.1 Fault finding during commissioning
If a BA484DF-P PROFIBUS displays 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
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
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-P PROFIBUS display 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-P PROFIBUS
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.

17
8. ACCESSORIES
8.1 Tag plate
The BA484DF-P PROFIBUS display can be
supplied with a blank or custom engraved stainless
steel plate secured by two screws to the side 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-P PROFIBUS display 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 PROFIBUS Interface Guides
The BEKA PROFIBUS Interface Guide, which may
be downloaded from the BEKA web site at
www.beka.co.uk contains conditioning information
for all BEKA PROFIBUS products.

18
10. INDEX
Subject Section
Address 6.3.11
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
Dust certification Appendix 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
Dust certification Appendix 1; 2; 3
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
Foundation 1; 2
Guide 9.4
Revisions 1 & 2 6.3.10.3
FISCO 3.3; 4.1
FM Approval Appendix 2
Function Blocks 1; 6.3.10.3
Gas groups 3.2
Guarantee 8.5
IECEx Certification Appendix 3
Input scaling 6.3.12
Installation 5
Intrinsic safety 3; Appendix 1; 2; 3
Keys 6.3.7
Location 5.1;
Appendix 1; 2; 3
Maintenance 8.
Routine 8.4
Subject Section
Notified Body 1; 3.1
Number Format 6.3.2
Pipe mounting kits 9.2
Programming 7.
Guide 7; 9.3
PROFIBUS PA 1; 2
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
Tags 6.3.3
Tag plate 9.1
T rating 3.2
Terminal numbers Fig 6
Units (of measurement) 6.3.4
Unit Info (firmware version) 6.3.9
Zones 3.2;
Appendix 1; 2; 3

19
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-P is available ATEX
certified for use in the presence of combustible
dusts. If ATEX dust certification is required it must
be reequested when the BA484DF-P Fieldbus
Display is purchased.
WARNING
Before installing a BA484DF-P 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-P has been ATEX certified as
Group II, Category 1 GD apparatus Tamb = -20
to 60oC, with a Maximum Surface Temperature of
125oC. When installed as specified by EN 50281
Part 1-2 ‘Selection, installation and maintenance of
electrical apparatus protected by enclosures’, 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-P 200oC
up to 5mm thick
Dust layer on BA484DF-P Refer to
over 5mm thick. EN 61241
part 14.
At an ambient temperature between -20 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 Fieldbus
Display enclosure being dust-tight. Therefore the
control and terminal covers should only be
removed when dust can not enter the instrument
enclosure. Before replacing the control and
terminal covers ensure that the sealing gaskets are
undamaged and are free from foreign bodies.

20
APPENDIX 2
FM approval for use in the USA
A2.0 Factory Mutual Approval
For installations in the USA, the BA484DF-P 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-P
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-P 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-P has a T4 rating at ambient
temperatures up to +60oC 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
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-P
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-P to be connected to non-
FISCO systems using the entity concept – see
section 4.2 of this manual.
A2.2 Nonincendive approval
The BA484DF-P 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-P has a T4 rating at ambient
temperatures up to +60oC and may be used with
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