Category: Eaton

Standard materials

• MTL BA-xx4 field mounted versions: IP66 glass reinforced polyester (GRP)

enclosure with a toughened glass window

• MTL BA-xx8 panel mounted versions: Non-metallic enclosure with an IP66 front

instrument panel

Eaton supplies the widest range of Crouse-Hinds series MTL fieldbus displays from

8-variable to cost effective single-variable versions, field and panel mount variants,

safe and hazardous area versions as well as FOUNDATION fieldbus™ H1 and Profibus

PA versions. All versions are bus powered to simplify installation.

The 8-variable BA-x8x model provides a large 86 x 45 mm back-lit display with 9

standard screen options displaying 1 to 4 variables, measurement units and tags

as well as bar graphs. The operator can select the displayed screen via the front

panel push-buttons, or these buttons may be disabled. The instrument can be supplied

with six isolated alarm outputs, each of which may be linked to any of the displayed

fieldbus variables. Alarm setpoints can be entered via the front panel push-buttons,

which in turn may be protected by a security code.

Our cost effective MTL BA-x1x model displays a single fieldbus process variable on a

bold five digit display and a 31 segment analogue bargraph. It supports FOUNDATION

fieldbus™ H1 with an Input Selector fieldbus function block which is supported by most

fieldbus hosts.

Field mounted versions are housed in a robust IP66 glass reinforced polyester (GRP)

enclosure with a toughened glass window that may be surface mounted or pipe mounted

using one of the accessory kits.

Panel mounted versions provide IP66 ingress protection from the front, fitting in a standard

72 x 144mm panel cut out.

Overview

Certifications and compliances

• MTL BA-4xx intrinsically safe versions have ATEX, FM, cFM and IECEx intrinsically

safe certification and comply with the Fieldbus Intrinsically Safe Concept FISCO

For applications in Zone 2 the BA414NDF has ATEX and IECEx Type nL approval

and is FNICO compliant.

• MTL BA-6xx versions are designed for general purpose safe area applications.

Please refer to each version’s datasheet in the resources section for the complete

listing of product certificaitons and compliances

Design features

• FOUNDATION fieldbus™ H1 and Profibus PA versions

• Displays upto 8 fieldbus process variables

• General purpose and intrinsically safe versions

• ATEX Gas & Dust, FM and IEC Ex certifications

• FISCO compliant intrinsically safe version 

The F809F-Plus is available with fully updated versions of eEDDL and FDT/DTM user interfaces

that are free to download from the eaton.com website. Improvements include faster operation

and clearer screen layouts, leading to an enhanced user experience. The user interfaces comply

with NAMUR specification NE107 ‘Self-Monitoring and

Diagnosis of Field Devices’, providing clear standardised diagnostic alerts using three of the four

categories; maintenance required, out of specification, and failure.

Certifications and compliances

EU ATEX:

• Ex II 3 G Ex nA IIC T4 (-40oC=Ta=+70oC)

EU ATEX:

• Ex nA IIC T4 Gc (-40oC=Ta=+70oC)

North America (FM/cFM):

• US: NI/1/2/ABCD T4 (-40oC=Ta=+70oC);  1/2/AEx nA/IIC/T4 (-40oC=Ta=+70oC)

• Canada: NI/I/2/ABCD/T4 (-40oC=Ta=+70oC);  I/2/ExnA/IIC/T4 (-40oC=Ta=+70oC)

Environmental ratings:

• IP rating: IP20 to BS EN 60529 (Additional protection by means of enclosure)

• Operating Temperature: –40°C to +70°C*

• Corrosive atmospheres: Designed to meet ten year service in Class G3 corrosive environment, as defined by ISA Standard SP71.04

* When mounted in a vertical orientation (optimum orientation)

Design features

• Monitors health of 8 fieldbus segments

• Provides early indication of possible network failure

• Communicates over Foundation™ fieldbus H1 segment

• Easily integrates into any fieldbus control system

• Registered to Fieldbus Foundation ITK 6.0. including support for Resource Block diagnostic bits

• Network status and parameters displayed in instrument management software

• Updated EDDL and FDT/DTM user interfaces, with Namur NE107 compatible alarm categories

The Crouse-Hinds series MTL F809F-Plus Fieldbus Diagnostic Module continuously

monitors the performance of eight fieldbus segments, providing information on the

health of the network physical layer. It mounts on a range of MTL power supply

carriers and collects diagnostic information without interruption to normal fieldbus

communications.

As a Foundation Fieldbus™ device the MTL F809F-Plus easily integrates with the

chosen host control system via a fieldbus segment, allowing the network status

and measured parameters to be displayed in the control system’s instrument

management software.

The F809F-Plus builds on the success of the F809F, the industry’s first fieldbus-connected

diagnostic module. New features of the F809F-Plus version include superior immunity

to noise on the ‘communicating’ segment, enhanced short-to-shield detection and

extended power supply voltage measurement range for compatibility with new MTL

power supply types. It may be used as a direct replacement for F809F in existing installations;

when installed using appropriate DD files the full feature set of F809F-Plus become available

with immediate effect.

The F809F-Plus is available with fully updated versions of eEDDL and FDT/DTM user interfaces

that are free to download from the eaton.com website. Improvements include faster operation

and clearer screen layouts, leading to an enhanced user experience. The user interfaces comply

with NAMUR specification NE107 ‘Self-Monitoring and

Diagnosis of Field Devices’, providing clear standardised diagnostic alerts using three of the four

categories; maintenance required, out of specification, and failure.

The F30 is compatible with F304. F308 and F312 Megablock

types, typically providing up to 12 Ex ic spurs per fieldbus

segment. Up to two F30s and their associated Megablocks

may be connected to a single segment, to allow the fieldbus

trunk to be extended between junction boxes in the field.

The spurs are compatible with FISCO and Entity certified

fieldbus instruments. Where FISCO instruments are selected,

cable parameter calculations are not required.

To comply with intrinsic safety requirements, each fieldbus

segment must be powered by a 918x-x2 fieldbus power

supply, fitted with 9192-FP power modules.

Ex ic replaces the earlier Ex nL technique for energy-limited

fieldbus networks, and brings the technique into line with

formal intrinsic safety procedures.

A key benefit of the MTL Ex ic spur solution is that the

fieldbus power supply has a higher output voltage than

competing products, allowing longer trunk cable lengths and

more fieldbus instruments per segment. Requirements for

ensuring compatibility with major host control systems are

also simplified.

The F30 is designed for installation in the field enclosure

together with the Megablock wiring hub. A full range of

compatible stainless steel and glass reinforced polyester

(GRP) enclosures are available.

• Use with F300 range of Megablocks and 918x-x2 range of fieldbus power

supplies to provide Ex ic intrinsically safe spurs for FOUNDATIONTM 

Fieldbus networks

•  Allows spurs to be live-worked in Zone 2 when connected to suitably

certified field instruments

•  Compatible with FISCO and Entity certified fieldbus devices

•  Installs with Megablock in field junction box

•  Supports long trunk cable lengths and heavily loaded fieldbus segments

The F30 Ex ic Adaptor is an accessory to F300 range of

Megablock wiring hubs, and provides intrinsically safe Ex ic

spur connections for fieldbus networks in Zone 2 hazardous

areas. One F30 is used with each Megablock, to limit the

voltage at the spurs to Ex ic levels. When connected to suitably

certified fieldbus instruments, the spurs may be live-worked in

accordance with normal intrinsic safety procedures. The F30 is

completely transparent to all fieldbus communications.

The F30 is compatible with F304. F308 and F312 Megablock

types, typically providing up to 12 Ex ic spurs per fieldbus

segment. Up to two F30s and their associated Megablocks

may be connected to a single segment, to allow the fieldbus

trunk to be extended between junction boxes in the field.

Connections to the Megablock are made using pluggable screw

terminal type connectors. This allows wire terminations to be made to

the individual connectors which are then plugged into the Megablock.

Devices can then be easily connected and disconnected during

commissioning. After commissioning, retaining screws are tightened

to secure each connector to the Megablock.

Short circuit protection Megablocks are available with built-in

SpurGuard™ short circuit protectors which prevent a short circuit in

any of the individual AS-i devices or spur cable runs from bringing the

entire network segment down. A red LED near each spur connection

indicates that a spur is shorted and is in overcurrent mode.

Internal Fault Indication

A red Fault LED is included on SpurGuard™ protected units. The red

Fault LED is lit if the AS–i Megablock diagnoses an internal failure.

The AS–i network continues to function in this condition, however, the

SpurGuard™ protection is not available.

* Megablocks contain active circuit components but do not contain an AS-i

chip or perform active repeater functions such as signal reconstruction or

amplification.

• AS-i bus wiring for the process industry environment

• SpurGuard™ short circuit protection with visual fault detection

• Plug-in connectors for fast commissioning and maintenance

• Choice of junction box to meet site requirements

• Power LED

AS-i Megablocks are DIN-rail mounted passive* hubs for the AS-i

network. They connect several AS-i devices to the network trunk

cable and provide short circuit and over voltage to the segment. The

AS–i Megablock itself does not contain an AS–i chip or communicate

over the AS–i network, so it consumes no network communication

resources (bandwidth, slave addresses, etc.). They are used to

interconnect AS–i master and slave devices that do contain AS–i chips.

Megablocks minimize hand wiring and allow individual devices to be

added to and removed from the segment without disrupting network

communication. A green power LED on each unit indicates whether

DC power is present. Megablocks are available in four and eight drop

versions. Multiple Megablocks are easily wired to one another to allow

larger segments to be constructed.

To follow the guidelines pertaining to operation and maintenance of intrinsically safe equipment in a

hazardous area, yearly periodic audits of the installation are required by the various codes of practice. In

addition, proof testing of the loop operation to conform with functional safety requirements should be

carried out at the intervals determined by safety case assessment.

Proof testing must be carried out according to the application requirements, but it is recommended that

this be carried out at least once every three years.

Refer to Appendix B for the proof testing procedure of the MTLx541A/AS and MTLx544A/AS modules.

Note that there may also be specific requirements laid down in the E/E/PE operational maintenance

procedure for the complete installation.

If an MTLx541A/AS and MTLx544A/AS module is found to be faulty during commissioning or during the

normal lifetime of the product, then such failures should be reported to the local MTL office. When

appropriate, a Cus tomer Incident Report (CIR) will be notified by Eaton to enable the return of the unit to

the factory for analysis. If the unit is within the warranty period then a replacement unit will be sent.

Consideration should be given to the service lifetime for a device of this type, which is in the region of ten

years. Operating an MTLx541A/AS and MTLx544A/AS module for longer than this period could invalidate

the functional safety analysis, meaning that the overall safety function no longer meets its target SIL. If

high failure rates of the MTL modules are detected, indicating that they have entered the ‘end of life

phase’ of their service life, then they should be replaced promptly.

Installation

There are two particular aspects of safety that must be considered when installing the MTL4500 or

MTL5500 modules and these are:

• Functional safety

• Intrinsic safety

Reference must be made to the relevant sections within the instruction manual for MTL4500 range

(INM4500)or MTL5500 range (INM5500) which contain basic guides for the installation of the interface

equipment to meet the requirements of intrinsic safety. In many countries there are specific codes of

practice, together with industry guidelines, which must also be adhered to.

Provided that these installation requirements are followed then there are no additional factors to meet

the needs of applying the products for functional safety use.

To guard against the effects of dust and water the modules should be mounted in an enclosure providing

atlea st IP54 protection degree, or the location of mounting should provide equivalent protection such as

inside an equipment cabinet.

In applications using MTL4500 range, where the environment has a high humidity, the mounting

backplanes should be specified to include conformal coating.