Issue: 4 1st March 2012

BA484DF-PPROFIBUS PA

Intrinsically safeField mounting

Fieldbus DisplayIssue: 4

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1. Description1.1 Documentation1.2 Version 2.0 firmware

2. Operation2.1 Controls

3. Intrinsic Safety Certification3.1 ATEX certificate3.2 Zones, gas groups and T rating3.3 Fieldbus connection3.4 External switches3.5 Alarm outputs3.6 Certification label information

4. System Design for Hazardous Area4.1 FISCO Systems4.2 Non-FISCO Sysems4.3 External switches4.4 Alarm outputs

5. Installation5.1 Location5.2 Installation procedure5.3 EMC

6. Display & Alarm Configuration6.1 Default configuration

6.2 Accessing the display configurationmenus

6.3 Configurable functions6.3.1 Screens (Display format)6.3.2 Input Settings6.3.3 Tags6.3.4 Units6.3.5 Alarms

6.3.5.1 Alarm Summary6.3.5.2 Alarm Activation6.3.5.3 Alarm Output

6.3.6 Display6.3.6.1 Settings6.3.6.2 Quick Access6.3.6.3 Access Code6.3.6.4 Status Text6.3.6.5 Last input

6.3.7 Keys6.3.8 Code6.3.9 Unit Info6.3.10 Defaults

6.3.10.1 Display Defaults6.3.10.2 Interface Board Default

6.3.11 Instrument address

6.4 Quick Access Menu

7. Maintenance7.1 Fault finding during commissioning7.2 Fault finding after commissioning7.3 Servicing7.4 Routine maintenance7.5 Guarantee7.6 Customer comments

8. Accessories8.1 Tag plate8.2 Pipe mounting kits8.3 Fieldbus Display Programming Guide.8.4 Fieldbus Interface Guides

9. Index

Appendix 1ATEX dust certification

Appendix 2FM Approval for use in the USA

Appendix 3IECEx certification

CONTENTS

The BA484DF-P PROFIBUS display is CE marked to show compliance with theEuropean Explosive Atmospheres Directive 94/9/EC

and the European EMC Directive 2004/108/EC

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1. DESCRIPTIONThe BA484DF-P PROFIBUS Display is anintrinsically safe instrument that cansimultaneously display up to eight PROFIBUS PAprocess variables, together with their units ofmeasurement and tag information. The instrumentis bus powered so no additional power supply isrequired.

Order Communication Function Code Protocol Blocks

BA484DF-P PROFIBUS PA Eight Analogueoutputs (8 x AO)

Six Digital inputs(6 x DI)

The instrument’s communications protocol isshown on a label inside the terminal cover. The ‘-P’order code suffix also indicates the protocol but isnot shown on the instrument certification label.There is an alternative version of the fieldbusdisplay, order code BA484DF-F for use onFOUNDATION™ fieldbus systems.

Configuration may be performed by either a DPV 0user PRM data download, or by a DPV 1configurator and if required the instrument addressmay be entered via the instrument’s front panelpush buttons. The required GSD files are availablefor downloading from both the PROFIBUS andBEKA websites.

Eleven selectable standard display formats enableone, two, three, four or eight process variables,some with bargraphs to be displayedsimultaneously on one screen.

The four front panel push buttons that control theinstrument display may also be used for returningoperator acknowledgements, thus enabling theBA484DF-P PROFIBUS Display to function as asimple operator interface. If larger industrial pushbuttons are required for entering theseacknowledgements, up to six external switchesmay be connected to the BA484DF-P. Theseswitch inputs may also be used for returning thestatus of plant contacts to the host using the DIfunction blocks.

The BA484DF-P PROFIBUS Display can besupplied with six optional alarm outputs that maybe linked to any of the displayed fieldbus variables.These alarm outputs are locally activated from thefieldbus variables and are configured via theinstrument menus and push buttons. They cannot be controlled via the fieldbus.

The instrument has been issued with an EC-TypeExamination Certificate by Notified Body IntertekTesting and Certification Ltd for gas and dustatmospheres which has been used to confirmcompliance with the European PotentiallyExplosive Atmospheres Directive 94/9/EC.

For use in the USA the instrument has intrinsicsafety and nonincendive FM Approval – seeAppendix 2, plus IECEx intrinsic safety approval forinternational 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 bepipe mounted using one of the accessory kits.

1.1 DocumentationThis instruction manual describes system design,conditioning and installation of the BA484DF-PPROFIBUS display. For detailed commissioninginformation please refer to the PROFIBUSInterface Guide that can be downloaded from theBEKA website www.beka.co.uk

1.2 Version 3.0 firmwareThis manual describes BA484DF-P PROFIBUSdisplays employing version 3.0 firmware that wasreleased in July 2010 and is not backwardscompatible with earlier versions.

Version 3.0 firmware provides

Addition of (6 x DI) function blocks to returnswitch status to host.

Fieldbus address entry via instrument pushbuttons.

Addition of DPV 0 configuration

Addition of two standard screens allowingeight fieldbus variables to be simultaneouslydisplayed.

Removal of text display facilities

When using the ▼ or ▲ button to selectinput, or groups of inputs to be displayed,unused inputs can now be skipped.

The instrument’s firmware version can beestablished using the ‘Unit Info’ function in themain configuration menu – see section 6.3.9 of thismanual. Version 3.0 firmware is shown asSW480F-02-300.

For BA484DF-P PROFIBUS displays employingversion 2.0 firmware, please refer to the BA484DF-P Intrinsically safe field mounting fieldbus displayIssue 10 manual dated 8th May 2006 which may bedownloaded from the obsolete products section ofthe BEKA website.

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2. OPERATIONFig 1 shows a simplified block diagram of theBA484DF-P PROFIBUS display. When theoptional alarms and external switches are notused, the instrument only requires a two-wireconnection to the fieldbus.

How much of the BA484DF-P PROFIBUS Displayconfiguration can be performed via the fieldbusdepends upon the system host. Parameters thatcan not be configured via the fieldbus can be setusing the configuration menu shown in Fig 7 andthe four front panel push buttons.

Fig 1 Simplified block diagram of BA484DF-P

2.1 ControlsThe user can scroll through the display screens byoperating the ▼ or ▲ push buttons. The numberof screens available depends upon how theBA484DF-P PROFIBUS display has beenconfigured and the number of process variablesthat are to be displayed. If one fieldbus variableper screen has been configured and eightvariables are to be displayed, eight screens will bepresent; if two fieldbus variables per screen havebeen configured and six variables are to bedisplayed, three screens will be available.

If enabled, operating the P and ▲ push-buttonssimultaneously activates the Quick Access Menu,allowing the user to adjust the display contrastwithout providing access to any of the otherconfiguration parameters. Additional security maybe provided by an optional access code.

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3. INTRINSIC SAFETY CERTIFICATION

3.1 ATEX certificateThe BA484DF-P PROFIBUS display has beenissued with an EC-Type Examination Certificate byNotified Body Intertek Testing and Certification(ITS) which has been used to confirm compliancewith the European ATEX Directive 94/9/EC for gasand dust atmospheres. The instrument bears theCommunity Mark and, subject to local codes ofpractice, may be installed in any of the EuropeanEconomic Area (EEA) member countries. ATEXcertificates are also acceptable for installations inSwitzerland.

This manual describes installations in explosivegas atmospheres which conform withIEC 60079-14 Electrical installations design,selection and erection. When designing systemsfor installation outside the UK, the local Code ofPractice should be consulted.

For use in the presence of combustible dust,please refer to Appendix 1.

3.2 Zones, gas groups and T ratingThe BA484DF-P PROFIBUS display has beenissued with EC Type Examination certificateITS04ATEX22778 confirming that it complies withthe requirements for Group II Category 1 G Ex iaIIC T4 Ga (Tamb –40 to 60oC). When connectedto a suitable certified system the BA484DF-P maybe installed in:

Zone 0 explosive gas air mixturecontinuously present.

Zone 1 explosive gas air mixturelikely to occur in normaloperation.

Zone 2 explosive gas air mixture notlikely to occur, and if it does willonly exist for a short time.

Be used with gases in groups:Group A propaneGroup B ethyleneGroup C hydrogen

Having a temperature classification of:T1 450ºCT2 300ºCT3 200ºCT4 135ºC

At an ambient temperature between –40 and+60ºC.

Note: the guaranteed operating temperature rangeof the Fieldbus Display is –20 to +60ºC

This allows the BA484DF-P PROFIBUS display tobe installed in all Zones and to be used with mostcommon industrial gases.

3.3 Fieldbus connectionThe BA484DF-P PROFIBUS display is poweredand communicates via the fieldbus, which isconnected to terminals 1 and 2. These terminalscomply with the Fieldbus Intrinsically Safe Concept(FISCO) defined in IEC 60079:11, which simplifiesintrinsic safety system design.

The BA484DF-P may also be connected to non-FISCO compliant fieldbus segments by using theentity concept to assess safety.

Terminals 1 and 2 of the BA484DF-P FieldbusDisplay are not polarised and have the followingsafety parameters:

Ui = 17.5V dcIi = 380mA dcPi = 5.32W

For non-FISCO compliant segments, the safetyparameters of the power supply or isolatorpowering the fieldbus segment must be equal to orless than these figures.

The maximum equivalent capacitance andinductance at terminals 1 & 2 of the BA484DF-PFieldbus Display is:

Ci = 1nFLi = 8µH

To determine cable parameters for non-FISCOcompliant segments, the sum of Ci and Li of all thefield devices should be subtracted from themaximum cable parameters permitted by thedevice powering the fieldbus segment.

3.4 External switchesFor applications requiring operator inputs to bemade by large industrial push buttons, terminalsS1 to S7 facilitate external switches to beconnected to the Fieldbus Display. When externalswitches are connected, the BA484DF-PPROFIBUS Display may be configured so that thefront panel push buttons continue to function or aredisabled.

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Terminals S1 to S7 have the following combinedoutput safety parameters:

Uo = 14.7V dcIo = 146.7mA dcPo = 0.58W

The switches and associated wiring connected tothe terminals must comply with the requirementsfor simple apparatus. i.e. the switch must bemechanically activated and have IP20 protection,and both the switch and the wiring must becapable of withstanding a 500V rms insulation testto earth for one minute. Most industrial pushbuttons and wiring satisfy these requirements.

The input safety parameters of terminals S1 to S7are zero, therefore only mechanically activatedswitches or intrinsically safe relays may beconnected.

The total maximum permitted cable parameters forall the cables connected to terminals S1 to S7 in aIIC hydrogen gas must be less than:

Co = 0.22µFLo = 0.26mH

Although these parameters are not restrictive, forreliable operation it is recommended that thecables between the fieldbus display and theexternal switch is less than 5m long.

3.5 Alarm outputsEach of the six optional alarm outputs is a separategalvanically isolated, solid state, single pole switch.The EC-Type Examination Certificate specifies thatunder fault conditions the voltage, current andpower at each switch output will not exceed thosespecified for simple apparatus in section 5.7 ofEN 60079-11. This allows each of the BA484DF-Palarm outputs to be connected to any intrinsicallysafe circuit protected by a certified Zener barrier orgalvanic isolator providing that the outputparameters of each circuit are less than:

Uo = 28V dcIo = 200mAPo = 0.84W

The maximum equivalent capacitance andinductance of each BA484DF-P alarm output is:

Ci = 40nFLi = 20µH

To determine the maximum permissible cableparameters, Ci and Li must be subtracted from themaximum cable capacitance and inductancespecified by the certificate of the circuit connectedto the alarm output.

3.6 Certification Label InformationThe certification label is fitted in a recess on thetop outer surface of the enclosure. It shows theATEX certification information, a statement that theinstrument is a FISCO Field Device, plus BEKAassociates name and location. Non-Europeancertification information may also be included.The instrument serial number and year ofmanufacture are recorded on a separate labelinside the terminal compartment.

4. SYSTEM DESIGN FOR HAZARDOUS AREAS

4.1 FISCO SystemsThe BA484DF-P PROFIBUS display may beconnected to any FISCO compliant fieldbussegment, providing the segment can provide theadditional 25mA required to operate thePROFIBUS Display.

Fig 2 shows a typical fieldbus segment. To complywith FISCO requirements, the power supply,terminators, field devices and the interconnectingcables must conform with IEC 60079:11.

Fig 2 FISCO fieldbus system

4.2 Non-FISCO SystemsIf the BA484DF-P PROFIBUS display is to beconnected to a fieldbus segment that does notcomply with FISCO requirements, the safetyparameters of the power supply and thePROFIBUS Display should be compared using theentity concept.

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The maximum output safety parameters of thedevice powering the fieldbus segment must beequal to, or less than, the input safety parametersof terminals 1 & 2 of the BA484DF-P PROFIBUSDisplay, namely:

Ui = 17.5V dcIi = 380mA dcPi = 5.32W

The maximum permitted cable parameters for thefieldbus segment must be reduced by theequivalent internal capacitance Ci and inductanceLi of the BA484DF-P. The BA484DF-P equivalentcapacitance and inductance are very small andmake little practical difference.

Ci = 1nFLi = 8µH

4.3 External switchesFor applications requiring operator inputs to bemade by large industrial push buttons, terminalsS1 to S7 allow up to six external switches to beconnected to the Fieldbus Display. When externalswitches are connected, the front panel pushbuttons may be operated in parallel or disabled –see section 6.3.7

For installation in a hazardous area the switchesand associated wiring must comply with therequirements for simple apparatus. i.e. the switchmust be mechanically activated and have IP20protection, and both the switch and the wiring mustbe capable of withstanding a 500V rms insulationtest to earth for one minute. Most industrial pushbuttons and wiring satisfy these requirements.

Although the allowable cable parameters are large,it is recommended that the cables are less than 5mlong.

If a safe area switch is to be connected to aBA484DF-P PROFIBUS display located in ahazardous area, the switch contact must betransferred via a certified intrinsically safe relay ora galvanic isolator having zero output safetyparameters as shown in Fig 3.

Fig 3 External push-button switch in safe area

4.4 Alarm outputsEach alarm output is a galvanically isolated singlepole 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 flowin one direction. Odd numbered terminals shouldbe connected to the positive side of the supply.

Ron = 5 + 0.7VRoff = greater than 1M

Note: Because of the series protection diode,some test meters may not detect a closed alarmoutput.

WARNINGThese Alarm Outputs should not be usedfor critical safety applications such as anemergency shut down system.

When the BA484DF-P is disconnected from thefieldbus, or the fieldbus is de-energised, all thealarm outputs will open irrespective of how theyhave been configured.

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5. INSTALLATION

5.1 LocationThe BA484DF-P PROFIBUS display is housed in arobust IP66 glass reinforced polyester (GRP)enclosure incorporating an armoured glass windowand stainless steel fittings. It is suitable for exteriormounting in most industrial environments, includingoff-shore and waste water treatment installations.Please consult BEKA associates if high vibration isanticipated.

The BA484DF-P enclosure is surface mounting.Accessory kits described in sections 8.2 of thismanual enable the instrument to be mounted ontoa vertical or horizontal pipe.

The field terminals and the two mounting holes arelocated in a separate compartment with a sealedcover allowing the instrument to be installedwithout exposing the display assembly.

The BA484DF-P earth terminal is connected to thecarbon loaded GRP case. If the case is not boltedto a post or structure connected to the plantpotential equalising network, the instrument’s earthterminal should be connected to the potentialequalising network as recommended inEN 60079-14.

The BA484DF-P enclosure is supplied with abonding plate to ensure electrical continuitybetween the three conduit / cable entries.

5.2 Installation ProcedureFig 5 illustrates the instrument installationprocedure.

a. Remove the instrument terminal cover byunscrewing the two captive 'A' screws.

b. Mount the instrument on a flat surface andsecure with two M6 screws through the 'B'holes. Alternatively use one of the mountingkits described in section 8.2

c. Remove the temporary dust seals from thethree cable entries and install the requiredglands, conduit fittings or blanking plugs.Note: The temporary dust seals fitted fortransit do not maintain the IP66 protection ofthe BA484DF-P enclosure.

d. Connect the field wiring to the terminals asshown in Fig 6.

e. Replace the instrument terminal cover andevenly tighten the two 'A' screws.

Fig 5 BA484DF-P installation procedure

5.3 EMCThe BA484DF-P complies with the requirements ofthe European EMC Directive 2004/108/EC. Forspecified immunity, all wiring should be inscreened twisted pairs with the screens connectedto the potential equalising network asrecommended in EN 60079-14.

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Fig 6 Dimensions and terminal connections

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6. DISPLAY & ALARM CONFIGURATIONIn addition to loading the BA484DF-P PROFIBUSdisplay GSD files onto the system host anddefining up to eight fieldbus variables that are to bedisplayed, the instrument address, display andalarms, if fitted, have to be configured. Howmuch of this configuration can be performed viathe fieldbus depends upon the system host.Parameters that can not be configured via thefieldbus, may be set via the four front panel pushbuttons.

All the display and alarm configuration functionsare contained in an easy to use menu that isshown in Fig 7. Where necessary the sub-menuscontain on-screen prompts to guide the userthrough each adjustment.

When navigating through the configuration menu,the push-button(s) should be held until the requiredscreen is displayed.

6.1 Default configurationUnless otherwise requested at the time of ordering,BA484DF-P PROFIBUS Displays will be suppliedconfigured as follows:

Address 126Keys BothDisplay brightness 100%Display contrast 50%Quick access menu OnQuick access menu code 0000Configuration menu access code. 0000Screen Single variableNumber format AutoAll alarms DisabledAlarm activation Good data onlyAlarm outputs N/CBargraph

Low 0High 100

Input scalingZero offset 0Gain factor 1

Status text OnLast input 8

6.2 Accessing the display configuration menusThroughout this manual the four BA484DF-P pushbuttons are identified P E ▼ ▲, and legendsdisplayed by the instrument are shown withininverted commas e.g. 'Enter Access Code'.

Operating the P and E push buttonssimultaneously accesses the display configurationmenu. If the BA484DF-P is not protected by anaccess code the main menu will be displayed. Ifan access code other than the default code 0000has already been entered, the BA484DF-P willrequest that the access code be entered.

Using the ▼ or ▲ button adjust the first digit of thecode which will be flashing. Pressing P willtransfer control to the next digit, which should beadjusted in the same way. When all four digitshave been set, pressing the E button will enter theaccess code. If the code is correct the mainmenu will be displayed, if the code is incorrect‘Invalid Code’ will be displayed.

When entering an access code, timeout will occurand the instrument will automatically return to theoperating mode ten seconds after a push buttonwas last operated. In all other menus, timeoutoccurs after sixty seconds.

The structure of the display configuration menu isshown in Fig 7. Navigation is achieved byhighlighting the required function using the ▼ and▲ buttons and then operating the P button todisplay the selected function sub-menu, from whicha further selection or adjustment may be made.Operating the E button moves the display back upone level.

A flashing highlight indicates that an option oralphanumeric character may be selected using the▼and ▲ buttons and entered using the E button.If only one entry or adjustment can be made in asub-menu, the display will automatically move upone menu level when the adjustment is entered. Ifmore than one adjustment can be made in a sub-menu, the highlight may be moved to the secondvariable using the ▼ or ▲ button after the firstsetting has been entered. Operating the P buttonallows the second variable to be adjusted.

When multiple numeric or alpha characters areadjusted e.g. an alarm setpoint or a tag legend, theadjustment is made one digit at a time using the ▼and ▲ buttons. After the first flashing digit hasbeen set as required, the flashing highlight can bemoved to the next digit by operating the P button.When all digits have been set, operating the Ebutton will enter the setting.

Following completion of the instrumentconfiguration, the E button should be operated tostep the display back to the main menu. One moreoperation of the E button will then return theBA484DF-P to the operating mode.

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6.3 Configurable functionsThis section provides an explanation of eachconfigurable function and should be read inconjunction with Fig 7. See section 6.3.11 forentering the instrument’s PROFIBUS PA address.

6.3.1 Screens (Display format)The BA484DF-P can display up to eight fieldbusvariables that are identified as IN_1 to IN_8. Thefieldbus variable that each one represents isdetermined by the BA484DF-P configuration at thefieldbus system host - see the PROFIBUSFieldbus Interface Guide which may bedownloaded from the BEKA website.

This sub-menu allows one of eleven standarddisplay formats to be selected. The standardformats contain one, two, three, four or eightfieldbus variables some with bargraphs as shownbelow.

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

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6.3.2 Input SettingsEach of the eight fieldbus variable inputs may bescaled 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 tothe fieldbus variable before it isdisplayed.

‘Gain’ Multiplies the fieldbus variable by afactor before it is displayed.

‘Bar Lo’ Defines the bargraph lower limit

‘Bar Hi’ Defines the bargraph higher limit

‘Format’ Defines the position of the displayeddecimal point.Six options are available:

Auto: Max resolution with selecteddisplay format.

4 DP 4 digits on right of decimal point3 DP 3 digits on right of decimal point2 DP 2 digits on right of decimal point1 DP 1 digit on right of decimal point0 DP No decimal point

The total number of display digits availabledepends upon the display screen selected – see6.3.1

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 610 4 variables + V bars 411 8 variables + H bars 5

* Font automatically resizes in auto mode

If a negative number is likely to be displayed, adigit must be allocated for the negative sign. If thedisplay overanges all the digits will display ‘?’.

For all options leading zeros, apart from the zero infront of a decimal point, are automaticallysuppressed.

6.3.3 TagsEach of the eight fieldbus variables may bedisplayed with an individual tag that can contain upto sixteen alphanumeric characters. This menuallows these tags to be entered. After selecting therequired variable, the tag legend is enteredcharacter by character using the ▼ and ▲ pushbuttons. Numbers, upper & lower case letters andsymbols are available.

6.3.4 UnitsEach of the eight fieldbus variables may bedisplayed with units of measurement that cancontain up to eight alphanumeric characters. Thismenu allows these units of measurement to beentered. After selecting the required variable, theunit of measurement is entered character bycharacter using the ▼ and ▲ push buttons.Numbers, upper & lower case letters and symbolsare available.

6.3.5 AlarmsAlarm menus are only included when the BA484DF-Pis fitted with optional alarm outputs. Outputs arelocally activated from the fieldbus variables and areconfigured via the instrument menus and pushbuttons. They can not be controlled via thefieldbus.

Each of the six alarms may be linked to any one ofthe eight fieldbus variables displayed by theBA484DF-P. Each alarm output can beconditioned to function as a high or a low alarm, oras a combined high and low alarm. The output canbe conditioned as normally open ‘N/O’ or normallyclosed ‘N/C’ in the non-alarm condition.Irrespective of settings all alarm outputs will beopen when the instrument is not powered from thefieldbus.

When an alarm is activated, the associatedfieldbus variable display flashes, i.e. alternatesbetween dark figures on a light background andlight figures on a dark background.

There are eight alarm-conditioning sub-menus.

6.3.5.1 Alarm SummaryShows to which PROFIBUS variable each alarm islinked and how each alarm has been conditioned.i.e. high, low, or combined high & low alarm withnormally open or closed output. No adjustmentscan be made via this sub-menu.

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6.3.5.2 Alarm ActivationPROFIBUS variables that have not been validatedare displayed with dark characters on a lightbackground, and some screen formats also containa status indication. This sub-menu allows thealarm outputs to be conditioned so that they onlyoperate with validated PROFIBUS data, or tooperate irrespective of data validity.

6.3.5.3 Alarm OutputThere is a separate sub-menu for each of the sixalarm outputs; these link the alarm to one of thedisplayed fieldbus variables and define the alarmfunction and the setpoints.

To link the alarm to a displayed variable, positionthe highlight over the ‘IN_n’ field, press P andusing the ▼ or ▲ button select the required inputsource. 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 thehighlight over the ‘N/O or N/C’ field, press P anduse the ▼ or ▲ button to toggle the setting. Enterthe selection by pressing the E button.

Each alarm output has three functions that can beindependently enabled to condition the output as alow or high alarm, or as a combined low and highalarm, either with or without hysteresis.

The required functions can be individually enabledby positioning the highlight over the Enb/Dis(Enabled/Disabled) column, pressing P andtoggling the function to the required state, thenentering the selection by pressing the E button.

Alarm setpoints are entered digit by digit. Placethe highlight over the setpoint to be adjusted andpress P; the flashing digit to be adjusted may thenbe selected by again pressing P. When all thedigits have been adjusted, operating the E buttonenters the value and moves the menu up one level.

The function of all alarms may be reviewed fromthe alarm summary menu - see 6.3.5.1.

6.3.6 Display6.3.6.1 SettingsThe backlight brilliance and display contrast areadjustable from this sub-menu.

6.3.6.2 Quick AccessThis sub-menu enables the Quick Access Menuwhich is described in sections 2.1 and 6.4 Whenenabled, an operator can adjust the displaycontrast and backlight brilliance without havingaccess to any other conditioning menus.

6.3.6.3 Access CodeDefines a four digit alphanumeric code that mustbe entered to gain access to the Quick AccessMenu. Alpha characters are case sensitive.Default code 0000 allows direct access without acode.

6.3.6.4 Status TextThe two single variable screens 1 and 4 will showthe status of the PROFIBUS variable as ‘Good’ or‘Bad’ if the Status Text function is activated.

6.3.6.5 Last InputThis function allows the maximum number ofPROFIBUS variables to be defined so that unusedinputs are skipped when the display is scrolled inthe operating mode.

6.3.7 KeysThe function of the front panel push buttons maybe transferred to four of the six optional externalpush buttons, with or without disabling theBA484DF-P front panel push buttons. The tablebelow shows the function of the BA484DF-P frontpanel and the external push buttons for each of thefour options that may be selected in the Keys sub-menu.

* Apart from when ‘Internal+Port’ is selected, the Key_Statusdoes not function when the instrument is in the configurationmenu.

The fourth option ‘Internal + Port’ allows the frontpanel push buttons to be used for controlling theBA484DF-P PROFIBUS display and the optionalexternal push buttons to independently enteroperator acknowledgements or controls. Thisoption also allows the status of plant mechanicalswitches to be returned to the host using the DIfunction blocks.

For applications where the instrument is onlydisplaying 1, 2, 3, 4 or 8 variables on a singlescreen, it is recommended that external buttonsare selected but not fitted. This will disable theinstrument front panel buttons, but still provideaccess to the configuration menu, which may beprotected by a security code.

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6.3.8 CodeDefines the four digit alphanumeric code that mustbe entered to gain access to the instrumentconfiguration menus. Alpha characters are casesensitive. Default code 0000 allows direct accesswithout a code.

6.3.9 Unit InfoDisplays the instrument model number and thesoftware version.

6.3.10 DefaultsThis function enables the display and interfaceboard factory defaults to be restored.

6.3.10.1 Display DefaultsThis function restores the display defaults definedin section 6.1.

CAUTIONExisting settings can not be recoveredafter this function has been used.

6.3.10.2 Interface Board DefaultsThis function restores the Fieldbus Interface Boardfactory defaults.

CAUTIONDo not use this function when theBA484DF-P is connected to anoperational PROFIBUS network, ascommunication to the display will beterminated.

6.3.11 Instrument addressEnables the required three digit PROFIBUSaddress to be entered digit by digit using theinstrument’s push buttons.

6.4 Quick Access MenuThe Quick Access Menu allows an operator toadjust the backlight brilliance and the displaycontrast without having access to the otherconfiguration parameters.

The quick access menu is accessed by operatingthe P and ▲ push buttons simultaneously. If theQuick Access Menu is not protected by an accesscode the contrast and brilliance controls will bedisplayed immediately. If an access code otherthan the default code 0000 has already beenentered, the BA484DF-P PROFIBUS display willrequest that the access code be entered.

The display backlight brilliance is adjusted usingthe ▼ and ▲ push buttons. Operating the P pushbutton will transfer control to the display contrastadjustment. When both are set as required,operating the E button will store both settings andreturn the instrument to the operating mode.

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7. MAINTENANCE

7.1 Fault finding during commissioningIf a BA484DF-P PROFIBUS displays fails tofunction during commissioning the followingprocedure should be followed:

Symptom Cause Check:No Display Fieldbus not

powered9 to 17.5Vbetween

terminals 1 & 2.

No variables Fieldbus notconfigured

Instrumentconfiguration at

hostWrong variable

displayedWrong screen

selectedOther screens byoperating Up or

Down buttonDisplay shows

‘?????’Display

overrangeNumber format

see section 6.3.2No backlight Brilliance turned

downSetting in display

menuLow or excessive

contrastIncorrect contrast

settingSetting in display

menuDisplayedvariable isinverted

i.e. light digits ondark background

Variable has‘bad’ status

Configurationand instrument

supplyingvariable

Displayedvariable isflashing

Associated alarmhas beenactivated

Setpoints

Bargraph onstandard displayformat is shown

dotted

Displayedfieldbus variable

is outsidebargraph limits or

data is ‘bad’

Bargraph limitssee section 6.3.2

7.2 Fault finding after commissioning

ENSURE PLANT SAFETY BEFORESTARTING MAINTENANCE

Live maintenance is permitted onintrinsically safe equipment installed in ahazardous area, but only certified testequipment should be used unless a gasclearance certificate is available.

If a BA484DF-P PROFIBUS display fails after ithas been functioning correctly, the table shown insection 7.1 may help to identify the cause of thefailure.

If this procedure does not reveal the cause of thefault, it is recommended that the instrument isreplaced.

7.3 ServicingWe recommend that faulty BA484DF-P PROFIBUSdisplays are returned to BEKA associates or to ourlocal agent for repair.

7.4 Routine maintenanceThe mechanical and electrical condition of theinstrument should be regularly checked. Initiallyannual inspections are recommended, althoughthe inspection frequency should be adjusted to suitthe environmental conditions.

7.5 GuaranteeInstruments which fail within the guarantee periodshould be returned to BEKA associates or our localagent. It is helpful if a brief description of the faultsymptoms is provided.

7.6 Customer commentsBEKA associates is always pleased to receivecomments from customers about our products andservices. All communications are acknowledgedand whenever possible, suggestions areimplemented.

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8. ACCESSORIES

8.1 Tag plateThe BA484DF-P PROFIBUS display can besupplied with a blank or custom engraved stainlesssteel plate secured by two screws to the side of theinstrument enclosure. This plate canaccommodate:

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 kitsTwo pipe mounting kits are available for securingthe BA484DF-P PROFIBUS display to a horizontalor vertical pipe.

BA392D Stainless steel bracket secured by twoworm drive hose clips for 60 to 80mmoutside diameter pipes.

BA393 Heavy duty stainless steel bracketsecured by a single 'V' bolt. Will clampto any pipe with an outside diameterbetween 40 and 80mm.

8.3 PROFIBUS Interface GuidesThe BEKA PROFIBUS Interface Guide, which maybe downloaded from the BEKA web site atwww.beka.co.uk contains conditioning informationfor all BEKA PROFIBUS products.

18

10. INDEX

Subject Section

Address 6.3.11Alarms 6.3.5

Activation 6.3.5.2Output 3.5; 6.3.5.3; 4.4Summary 6.3.5.1

ATEX Directive 3.1Dust certification Appendix 1

Backlight 6.3.6.1Bargraph limits 6.3.2

CertificatesEC-Type Examination 3.1Label 3.6

Configuration menu Fig 7Controls 2.1Code 6.3.8

Decimal Points 6.3.2Default settings 6.1; 6.3.10Display 6.3.6

Access code 6.3.6.3Settings 6.3.6.1Quick access 6.3.6.2; 6.4

Dust certification Appendix 1; 2; 3

EMC 5.3External switches 3.4; 4.3; 6.3.7Fault finding

During commissioning 8.1After commissioning 8.2

FieldbusConnection 3.3Foundation 1; 2Guide 9.4Revisions 1 & 2 6.3.10.3

FISCO 3.3; 4.1FM Approval Appendix 2Function Blocks 1; 6.3.10.3

Gas groups 3.2Guarantee 8.5

IECEx Certification Appendix 3Input scaling 6.3.12Installation 5Intrinsic 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; 3.1Number Format 6.3.2

Pipe mounting kits 9.2Programming 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 8.3Screens (display format) 6.3.1

Tags 6.3.3Tag plate 9.1T rating 3.2Terminal numbers Fig 6

Units (of measurement) 6.3.4Unit Info (firmware version) 6.3.9

Zones 3.2; Appendix 1; 2; 3

19

APPENDIX 1ATEX dust certification

A1.0 ATEX dust certificationIn addition to ATEX certification permittinginstallation in explosive gas atmospheres which isdescribed in the main section of this instructionmanual, the BA484DF-P is available ATEXcertified for use in the presence of combustibledusts. If ATEX dust certification is required it mustbe reequested when the BA484DF-P FieldbusDisplay is purchased.

WARNINGBefore installing a BA484DF-P FieldbusDisplay in the presence of a combustibledust, ensure that the certificationinformation label which is located on thetop of the instrument specifies dustcertification - see section A1.2

A1.1 Zones and Maximum Surface TemperatureThe BA484DF-P has been ATEX certified asGroup II, Category 1 D apparatus Tamb = -40 to60ºC, with a Maximum Surface Temperature of125ºC. When installed as specified byIEC 60079-14, the Fieldbus Display may beinstalled in:

Zone 20 explosive atmosphere in theform of a cloud ofcombustible dust in air iscontinuously present, or forlong periods or frequently.

Zone 21 explosive atmosphere in theform of a cloud ofcombustible dust in air islikely to occur occasionallyin normal operation.

Zone 22 explosive atmosphere in theform of a cloud ofcombustible dust in air is notlikely to occur in normaloperation, but if it doesoccur, will only persist for ashort period.

Be used with dusts having a Minimum IgnitionTemperature of:

Dust cloud 188ºC

Dust layer on BA484DF-P 200ºCup to 5mm thick

Dust layer on BA484DF-P Refer toover 5mm thick. EN 60079:14

At an ambient temperature between -40 and +60ºC

Note: the guaranteed operating temperature rangeof the Fieldbus Display is –20 to +60ºC

A1.2 Certification Label InformationThe certification label is fitted in a recess on thetop outer surface of the enclosure. It shows theATEX dust certification information including themaximum surface temperature and ingressprotection, plus the ATEX gas certificationinformation. Non European information may alsobe shown.

The instrument serial number and date ofmanufacture are recorded on a separate labelinside the terminal compartment.

A1.3 Calibration & maintenanceThe ATEX dust certification relies on the FieldbusDisplay enclosure being dust-tight. Therefore thecontrol and terminal covers should only beremoved when dust can not enter the instrumentenclosure. Before replacing the control andterminal covers ensure that the sealing gaskets areundamaged and are free from foreign bodies.

20

APPENDIX 2FM approval for use in the USA

A2.0 Factory Mutual ApprovalFor installations in the USA, the BA484DF-P andoptional alarms have been approved intrinsicallysafe and nonincendive by FM Approvals, projectidentification 3022546. Copies of the Certificate ofCompliance are available from BEKA associates.

The FM Approved version of the BA484DF-PFieldbus Display is identical to the ATEX versionexcept the three M20 x 1,5 tapped cable entriesare replaced by three plain unthreaded 22.25mmdiameter entries. Approved hubs and glands arelisted in note 8 of Control Drawing CI480-17 andnote 7 of Control Drawing CI480-18. Thecertification label on the FM Approved versionincludes ATEX gas certification information so thatthe Fieldbus Display may be used in systemscovered by either authority.

A2.1 Intrinsic safey approvalThe BA484DF-P is approved to the FM Class 3610intrinsic safety standard for use in indoor andoutdoor hazardous (classified) locations.Installations must comply with BEKA associatesControl Drawing CI480-17, which is attached tothis Appendix, ANSI/ISA RP12.06.01 ‘Installationof Intrinsically Safe Systems for Hazardous(Classified) Locations’ and with the NationalElectrical Code ANSI/NFPA70.

The BA484DF-P has a T4 rating at ambienttemperatures up to +60oC and may be used withthe following gases and dusts:

Intrinsic SafetyDivision 1 or 2

Class I Group A & B Group C Group D

Class II Group E, F & G

Class III

Zone 0, 1 or 2Class 1 Group IIC Group IIB Group IIA

The FM entity parameters are identical to theATEX parameters and, like the ATEX certification,confirm that terminals 1 & 2 of the BA484DF-Pcomply with the requirements for a FISCO FieldDevice specified in IEC60079-27. The intrinsicallysafe circuits shown in Figs 2 and 3 of this manualmay therefore be used for installations in the USA,providing the fieldbus power supply, terminators,Zener barriers and galvanic isolators are FMApproved and comply with BEKA associatesControl Drawing CI480-17. The FM Approval alsoallows the BA484DF-P to be connected to non-FISCO systems using the entity concept – seesection 4.2 of this manual.

A2.2 Nonincendive approvalThe BA484DF-P is Class 3611 nonincendiveapproved by Factory Mutual allowing it to beinstalled in Division 2 indoor and outdoorhazardous (classified) locations without the needfor Zener barriers or galvanic isolators.Installations must comply with the BEKAassociates Control Drawing CI480-18, which isattached to this Appendix, and with the NationalElectrical Code ANSI/NFPA70.

The FM Nonincendive Approval also allows theinstrument to be connected to any FNICOcompliant fieldbus segment powered by FMApproved Associated Nonincendive Field WiringApparatus.

The BA484DF-P has a T4 rating at ambienttemperatures up to +60oC and may be used withthe following gases and dusts:

NonincendiveDivision 2

Class I Group A & B Group C Group D

Class II Groups E, F & G

Class III

Zone 2Class I Group IIC Group IIB Group IIA

21

HAZARDOUS (CLASSIFIED) LOCATION UNCLASSIFIED LOCATION

EQUIPMENTLOCATIONHAZARDOUSNON

SEE NOTE 2

SEE NOTE 5

SEE NOTE 5

SEE NOTE 5

SEE NOTE 5

SEE NOTE 5

SEE NOTE 5

A9ALARM

ALARM

OPTIONAL

OPTIONALA12A11

A10

BA484DF orBA488CFSEE NOTE 7 & 8

S7

BA484DF LOCATIONS:Class I, Division 1, Groups A, B,C, DClass II, Division 1, Groups E, F & GClass IIIClass I, Zone 0, Group IIC

BA488CF LOCATIONS:Class I, Division 1, Groups A, B,C, DClass I, Zone 0, Group IIC

SEE NOTE 1

BA484DF and BA488CFEntity 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 byIEC 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

A7OPTIONALALARM A8

A5OPTIONALALARM A6

A3OPTIONALALARM A4

A1OPTIONALALARM A2

S6

S5

S4

S3

S2

S1

SEE NOTE 6

OPTIONALEXTERNALSWITCHES

21

SEE NOTE 4FIE

LDB

US

SEE NOTE 10

SEE NOTE 11

22

Outside panel finish should be smooth, free from particle inclusions, runs or

To maintain IP66 protection between the BA488CF and the mounting panel:

20 and 22cNm (1.77 to 1.95 inL

(2.60 x 5.35 inches –0.00 +0.02)66.2 x 136.0mm -0.0 +0.5

3mm (0.12inches) Aluminium2mm (0.08inches) Steel

tightened to between:Each panel mounting clip should be

Edges of panel cut-out should be deburred and clean

Panel cut-out should be

build-up around cut-out.

Minimum panel thickness should be

Four panel mounting clips should be used

7.

b)

mechanically activated switches OR FM approved equipment with entityHazardous (classified) location equipment may be simple apparatus e.g.

barrier or galvanic isolator with entity parameters complying with the followingOne single channel or one channel of a dual channel associated intrinsically safe

isolator with entity parameters complying with the following requirements:Fieldbus power supply with FISCO compliant output (IEC6009-27) or galvanic

Ccable + CiLcable + Li

Ccable + CiLcable + Li

Ccable + CiLcable + Li

Intrinsically Safe Systems for Hazardous (Classified) Locations” and the NationalInstallation shall be in accordance with ANSI/ISA RP 12.06.01 “Installation of

barriers and fieldbus power supply shall not use or generate more than 250V rmsThe unclassified location equipment connected to the associated intrinsically safe

approved and the manufacturers’ installation drawings shall be followed whenThe associated intrinsically safe barriers and fieldbus power supply must be FM

Uiequal to or less thanUo or Vt

parameters complying with following requirements:

La

6.

CaLa

Io or ItUo or Vt

Ca

5.

Io or ItUo or Vt

requirements:

CaLa

Io or It

equal to or greater than

equal to or greater than

equal to or greater than

equal to or less thanequal to or less than

equal to or greater than

IiUi

equal to or less than less than

equal to or greater than equal to or greater than

equal to or less than

equal to orIiUi

Ii

Electrical Code ANSI/NFPA 70.

installing this equipment.

2.

4.

3.

or 250V dc.

Notes:

1.

cont:

Po Piequal to or less than

Po equal to or less than Pi

Po equal to or less than Pi

23

Code the enclosures shall be grounded using the ‘E’ terminal on the terminalmanufactured from conductive plastic per Article 250 of the National Electrical

The BA484DF and BA488CF Fieldbus Display enclosures are

hubs are fitted to a BA484DF Fieldbus Display, all metallic glands or conduit hubsIn addition to the supplied bonding plate, when 2 or 3 metallic glands or conduit

shall be fitted with cable glands / conduit hubs selected from the following tableWhen installed in a hazardous (classified) location the BA484DF Fieldbus Display

Any metallic or plastic cable gland or conduit hub that provides

SSTG-1 STG-1 STAG-1

Permitted gland or conduit hub

Killark Glands

must be connected together and grounded.

block.

9.

10.

CAUTION:

CMCXAA050 MCR050 MCX050

Metallic glands and hubs must be grounded – see note 9.

Class I

Class II and III

8.

Class

CHMG-50DT

Crouse – Hinds Myler hubs

the required environmental protection.

O-Z / Gedrey Hubs

MHUB-1

REMKE hubWH-1-G

Cont.

11. The terminator on the Fieldbus must be FM Approved.

The BA484DF should be mounted where it is shielded from direct sunlight.12.

24

FISCO Rules

The FISCO Concept allows the interconnection of intrinsically safe apparatus to associated apparatus not specifically examined in such combination. The criterion for such interconnection is that the voltage (Vmax), the current (Imax) and the power (Pmax) which intrinsically safe apparatus can receive and remain intrinsically safe, considering faults, must be equal or greater than the voltage (Uo, Voc or Vt), the current (Io, Isc or It) and the power (Po) which can be provided by the associated apparatus (supply unit). In addition the maximum unprotected residual capacitance (Ci) and inductance (Li) of each apparatus (other than terminators) connected to the Fieldbus must be less than or equal to 5nF and 10uH respectively.In each I.S. Fieldbus segment only one active source, normally the associated apparatus, is allowed to provide the necessary power for the Fieldbus system. The allowed voltage (Uo, Voc or Vt) of the associated apparatus used to supply the bus cable must be limited to the range 14Vdc to 24Vdc. All other equipment connected to the bus cable has to be passive, meaning that the apparatus is not allowed to provide energy to the system, except a leakage current of 50µA for each connected device. Separately powered equipment needs galvanic isolation to ensure the intrinsically safety Fieldbus circuit remains passive.The cable used to interconnect the devices needs to comply with the following parameters:Loop resistance R': 15....150/kmInductance per unit length L':0.4....1mH/km

Capacitance per unit length C': 80....200nF/kmC' = C' line/line+0.5 C' line/screen, if both lines are floatingorC' = C' line/line + C'line/screen, if the screen is connected to one line.Length of spur cable: max. 30mLength of trunk cable: max. 1kmLength of splice: max = 1mTerminatorsAt the end of each trunk cable an FM Approved line terminator with the following parameters is suitable:R= 90....100C = 0 ....2.2µF

System evaluationThe number of passive devices like transmitters, actuators, connected to a single bus segment is not limited due to I.S. reasons. Furthermore, if the above rules are respected, the inductance and the capacitance of the cable need not be considered and will not impair the intrinsic safety of the installation.

Notes.1. The intrinsic safety FISCO concept allows the interconnection of FM Approved Intrinsically Safe devices with FISCO parameters not specifically examined in combination as a system when:Uo or Voc or Vt Vmax, Io, Isc or It Imax, Po Pi."

25

HAZARDOUS (CLASSIFIED) LOCATION UNCLASSIFIED LOCATION

EQUIPMENTLOCATIONHAZARDOUSNON

SEE NOTE 1

A9ALARM

ALARM

OPTIONAL

OPTIONAL

A12A11

A10

2 1

BA484DF orBA488CFSEE NOTE 6 & 7

S7

BA484DF LOCATIONS:Class I, Division 2, Groups A, B,C, DClass II, Division 2, Groups E, F & GClass IIIClass I, Zone 2, Groups IIC

BA488CF LOCATIONS:Class I, Division 2, Groups A, B,C, DClass I, Zone 2, Groups IIC

SEE NOTE 4

SEE NOTE 2

A7OPTIONAL

ALARM A8

A5OPTIONAL

ALARM A6

A3OPTIONAL

ALARM A4

A1OPTIONAL

ALARM A2

S6

S5

S4

S3

S2

S1

SEE NOTE 5

OPTIONALEXTERNALSWITCHES

BA484DF and BA488CFMaximum input and output parameters

Terminals 1 & 2 Vmax = 32V dc NIFW Vmax = 17.5V (FNICO) Ci = 1nF Li = 8µH

These terminals comply with The Fieldbus Nonincendive Concept (FNICO) defined by IEC 60079-27(Typical current consumption 25mA)

Terminals S1 to S7 (combined parameters) Vmax = 0V Voc = 14.7Vdc Isc = 146.7mAdc Co = 0.08µF Lo = 1.1mH

Terminals A1 & A2; A3 & A4; A5 & A6; A7 & A8; A9 & A10 and A11 & A12 Vmax = 32V dc Ci = 0.04µF Li = 0.02mH

FIE

LDB

US

SEE NOTE 9

SEE NOTES3A and 3B

SEE NOTE 10

26

Notes: 1. The unclassified location equipment connected to the associated nonincendivefield wiring apparatus must not use or generate more than 250V rms or 250V dc.

2. Nonincendive field wiring installations shall be in accordance with the NationalElectrical Code ANSI/NFPA 70. The Nonincendive Field Wiring concept allowsinterconnection of Nonincendive Field Wiring Apparatus with AssociatedNonincendive Field Wiring Apparatus using any of the wiring methods permitted forunclassified locations.

3A.

4. Apparatus connected to the optional alarm contacts shall be FM Approved asAssociated Nonincendive Field Wiring Apparatus and shall comply with thefollowing requirements:

Voc equal to or less than VmaxLa equal to or greater than Lcable + LiCa equal to or greater than Ccable + Ci

5. Terminals S1 to S7 shall be connected to simple apparatus or volt free contacts ofFM Approved Nonincendive Field Wiring Apparatus or FM Approved AssociatedNonincendive Field Wiring Apparatus installed using Division 2 wiring methods.

6. To maintain IP65 protection between the BA488CF and the mounti ng panel:Four panel mounting clips should be usedMinimum panel thickness should be 2mm (0.08inches) Steel

3mm (0.12inches) AluminiumOutside panel finish should be smooth, free from particle inclusions, runs orbuild-up around cut-out.Panel cut-out should be 66.2 x 136.0mm -0.0 +0.5

(2.60 x 5.35 inches –0.00 +0.02)Edges of panel cut-out should be deburred and cleanEach panel mounting clip should betightened to between: 20 and 22cNm (1.77 to 1.95 inLb)

Cont.

FNICO non-linear power supplyA FNICO non-linear fieldbus power supply shall be:

FM Approved Associated Nonincendive Field Wiring Apparatus installed in the unclassified location complying with the following table:

OR

FM Approved Nonincendive Field Wiring Apparatus installed in the classified location complying with the following table:

Voc

V 14 15 16 17 17.5 112

121

mA 274199154 432

531570

360319

mA

Maximum current for Groups AB [IIC]

Maximum currentfor Groups CD [IIB, IIA]

FM Approved Nonincendive Field Wiring Apparatus installed in the classified location with parameters complying with the following requirements:

La Ca

Voc

FM Approved Associated Nonincendive Field Wiring Apparatus installed in the A linear fieldbus power supply shall be:Linear power supply

unclassified location with parameters complying with the following requirements:

OR

3B.

equal to or greater than equal to or greater than

equal to or less than Vmax

Ccable + CiLcable + Li

27

must be connected together and grounded.

Code the enclosures shall be grounded using the ‘E’ terminal on the terminalmanufactured from conductive plastic per Article 250 of the National Electrical

hubs are fitted to a BA484DF Fieldbus Display, all metallic glands or conduit hubsIn addition to the supplied bonding plate, when 2 or 3 metallic glands or conduit

The BA484DF and BA488CF Fieldbus Display enclosures are

block.

CAUTION:9.

8.

Class II and III

Class I

Class

Any metallic or plastic cable gland or conduit hub that providesthe required environmental protection.

SSTG-1 STG-1 STAG-1Crouse – Hinds Myler hubs

CMCXAA050 MCR050 MCX050

Permitted gland or conduit hub

MHUB-1

CHMG-50DT

Killark Glands

REMKE hub

O-Z / Gedrey hub

WH-1-G

Metallic glands and hubs must be grounded – see note 8.

When installed in a hazardous (classified) location the BA484DF Fieldbus Displayshall be fitted with cable glands / conduit hubs selected from the following table.

7.

The terminator on the Fieldbus must be FM Approved.10.

The BA484DF should be mounted where it is shielded from direct sunlight.11.

Cont.

28

FNICO Rules

The FNICO Concept allows the interconnection of intrinsically safe apparatus to associated apparatus not specifically examined in such combination. The criterion for such interconnection is that the voltage (Vmax), the current (Imax) and the power (Pmax) which intrinsically safe apparatus can receive and remain intrinsically safe, considering faults, must be equal or greater than the voltage (Uo, Voc or Vt), the current (Io, Isc or It) and the power (Po) which can be provided by the associated apparatus (supply unit). In addition the maximum unprotected residual capacitance (Ci) and inductance (Li) of each apparatus (other than terminators) connected to the Fieldbus must be less than or equal to 5nF and 20uH respectively.In each I.S. Fieldbus segment only one active source, normally the associated apparatus, is allowed to provide the necessary power for the Fieldbus system. The allowed voltage (Uo, Voc or Vt) of the associated apparatus used to supply the bus cable must be limited to the range 14Vdc to 17.5Vdc. All other equipment connected to the bus cable has to be passive, meaning that the apparatus is not allowed to provide energy to the system, except a leakage current of 50µA for each connected device. Separately powered equipment needs galvanic isolation to ensure the intrinsically safety Fieldbus circuit remains passive.The cable used to interconnect the devices needs to comply with the following parameters:Loop resistance R': 15....150/kmInductance per unit length L':0.4....1mH/km

Capacitance per unit length C': 80....200nF/kmC' = C' line/line+0.5 C' line/screen, if both lines are floatingorC' = C' line/line + C'line/screen, if the screen is connected to one line.Length of spur cable: max. 30mLength of trunk cable: max. 1kmLength of splice: max = 1mTerminatorsAt the end of each trunk cable an FM Approved line terminator with the following parameters is suitable:R= 90...100C = 0....2.2µF

System evaluationThe number of passive devices like transmitters, actuators, connected to a single bus segment is not limited due to nonincendive reasons. Furthermore, if the above rules are respected, the inductance and the capacitance of the cable need not be considered and will not impair the intrinsic safety of the installation.

Notes.1. The intrinsic safety FNICO concept allows the interconnection of FM Approved nonincendive devices with FNICO parameters not specifically examined in combination as a system when:Uo or Voc or Vt Vmax"

29

APPENDIX 3IECEx Certification

A3.0 The IECEx Certification SchemeIECEx is a global certification scheme for explosionprotected products which aims to harmoniseinternational certification standards.For additional information about the IECExcertification scheme and to view the BEKAassociate certificates, please visit www.iecex.com

A3.1 IECEx Certificate of ConformityThe BA484DF-P Fieldbus Display has been issuedwith an IECEx Certificate of Conformity numberIECEx ITS 05.0006 which specifies the followingcertification codes and marking:

For gas Ex ia IIC T4 GaTa = -40ºC to 60 ºC

For dust Ex ia IIIC T125ºC Da IP66Ta = -40ºC to 60ºC

The specified intrinsic safety parameters areidentical to the ATEX parameters and confirm thatterminals 1 & 2 comply with the requirements for aFISCO Field Device specified in IEC60079-11.

The IECEx certificate may be downloaded fromwww.beka.co.uk, www.iecex.com or requestedfrom the BEKA sales office.

A3.2 Versions of the BA484DF-PAll versions of the BA484DF-P Fieldbus Displayhave IECEx certification. This includes:

ATEX version for use in gas atmospheres.IECEx code Ex ia IIC T4 Ga

Ta = -40ºC to 60ºC

ATEX version for use in gas and dustatmospheres.

IECEx code Ex ia IIC T4 GaEx ia IIIC T125ºC Da IP66Ta = -40ºC to 60ºC

Factory Mutual Approved versionIECEx code Ex ia IIC T4 Ga

Ta = -40ºC to 60ºC

A3.3 InstallationAs the IECEx and ATEX certifications specifyidentical safety parameters and installationrequirements for both are defined byIEC 60079-14, the ATEX installation requirementsspecified in sections 3.2 to 5.3 may therefore alsobe used for IECEx installations in gas or dustatmospheres. The local code of practice shouldalso be consulted.