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Baseefa Ltd

Exloc Instruments UK Ltd is sole UK distributor of GM International products

10 August 2015

Here we focus on the expanded range of SIL certified relays and switch repeaters that have been designed and engineered to meet the requirements of modern niche projects. The switching of Safety-Related circuits demands the use of specific SIL certified Relay Output modules, capable of delivering the highest rate of availability and functional safety.

D5093D and D5293S, now available from Exloc
D5093D and D5293S, now available from Exloc

The original SIL relay by GM International was the D5293S, a relay output with a normally energised load and with load and line diagnostics which achieves SIL3 according to IEC61508:2010 Ed.2.

The new D5294S and D5295S modules are both 4Amp modules (normally open and normally closed contacts respectively) which again achieve SIL3 and are suitable for Normally Energised or Fire & Gas /Normally De-energised load with open/short circuit diagnostics.

However, these units are so much more than just a relay.  They not only perform the desired safety function, but also provide full Load & Line Internal Diagnostics: load voltage and current, load resistance (patented), leakage from load to earth, coil integrity and internal faults.

Moreover, MODBUS communication allows the units to be remotely interrogated and configured.

Hardware is SIL 3 certified, while diagnostic functions are now also SIL 2 certified by TUV: they remain two independent features, which can be used separately or together.

All models are ATEX, IECEx and SIL certified and are suitable for installation in Zone 2 / Div. 2 Hazardous locations.

The range of GM International modules which are SIL capable continues to expand and also includes the single channel D5093S and dual channel D5093D Loop Powered Switch Repeaters.  These modules operate at 24 to 220 Vac/Vdc and are suitable for safety related system applications requiring SIL 3 in high risk industries.

Each channel is able to reflect the presence of a 24 to 220 Vac/Vdc input signal to the output by closing an optically coupled Normally Open open-drain transistor (solid-state relay, MOSFET output).

The presence of the 24 to 220 Vac/Vdc input signal is also indicated by a yellow LED on the front panel.

The input switching voltage levels are selected, according to the applied input signal, by means of an internal dip-switch which is overload protected.

Mounting of the units can be via standard DIN-Rail or on customized Termination Boards, in Safe Area or in Zone 2, group IIC T4.  All models are ATEX, IECEx and SIL certified.

Where it is necessary to reflect the presence of a 24 to 220Vac/Vdc input signals in your application, D5093S modules are the right choice, satisfying the highest grade of availability and functional safety.

Functional Safety Expert Tino Vande Capelle
Functional Safety Expert Tino Vande Capelle

Of course, utilizing safety related products to achieve a SIL rated solution requires a sound knowledge of the standards and the engineering procedures needed to design a solution to meet these standards.  This is why Exloc Instruments have partnered GM International to provide Functional Safety Engineer (TÜV Rheinland) Training for Safety Instrumented System Professionals, presented by Worldwide renowned Functional Safety Expert, Tino Vande Capelle.

Tino is an accepted course provider within the Functional Safety Program for Safety Instrumented Systems (SIS) of TÜV Rheinland.  The course focuses on functional safety aspects for the process, oil & gas, petrochemical and chemical industries according to IEC 61508 / 61511.

Course objective 

The main objective of the 4 day course (3 learning days plusan exam on day 4) is to provide all engineers involved in safety instrumented systems with elementary and necessary knowledge about functional safety, based on the leading international functional safety standards IEC 61508 and IEC 61511.

A second objective is to give anybody attending the course the opportunity to have his or her functional safety competency confirmed by the TÜV Rheinland upon successfully passing the exam.

Who Should Attend?

–   Plant and quality managers

–   System integrators and independent consultants

–   Control and process engineers

–   Maintenance and instrumentation engineers

–   Managers of engineering departments

–   Risk, reliability, safety and quality engineers

–   Loss prevention engineers

–   Sales engineers - Sales managers - Marketing specialists for safety-products, systems and services

–   Technical staff involved in any part of SIS lifecycle that need or want to develop their competency in  Functional Safety

Why Should You Attend?

Call us on 01457 239301 / 07557 371373 or e-mail sales@exloc.co.uk for further details on any of the above.


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