LOCKEN’s cable-free access control certified by Health and Safety regulator ATEX

LOCKEN’s latest innovation in cable-free access control, which is powered by contactless technology, has won certification from Health and Safety regulator ATEX in accordance with new explosive atmosphere requirements.

Approved to ATEX II 2 G Ex ib IIB T4, the solution is suitable for gas delivery and regulation stations, specific hydrocarbon processing and distribution infrastructures and chemical factory enclosures. It’s also suitable for areas where an explosive mixture of gas, vapour or mist may ‘occasionally’ occur in ‘normal operation’.

The contactless solution meets strict legislation concerning equipment and protective systems intended for use in potentially explosive atmospheres most prevalent in the energy, chemicals, timber, household waste and food and drink industries.

Communication and energy transfer between the key and cylinder is based on tight inductive coupling. An alternating magnetic field, which is generated by the key, transfers energy to the cylinder. Data is transferred by modulation of the magnetic field.

The system is made by two coils. One coil, which generates the alternating magnetic field, is located inside the key, while the second coil resides inside the cylinder. The metal parts of the key and the cylinder are designed in order to close the magnetic circuit.

To permit good alignment of the two coils, a mechanism that activates the magnetic field generation in the primary coil is implemented. A ‘Hall Effect’ sensor, mounted close to the primary coils, senses a permanent magnet inside the cylinder and the magnetic field generation is activated.

Energy and data transfer is only possible when the key’s inserted into the cylinder and the horizontal alignment of the primary and secondary coil is within few hundredths of a millimetre.

Catherine Laug, marketing director at LOCKEN, explained: “Meeting ATEX legislation guarantees that our latest access control innovation, the new contactless key, is safe to use at potentially hazardous sites, enabling us to provide the most robust and future-proof solution to our customers.

Several large-scale organisations in the gas and hydrocarbons industries have already opted for the LOCKEN smart key solution and we’re looking forward to working with many more in the future.”

About the Author
Brian Sims BA (Hons) Hon FSyI, Editor, Risk UK (Pro-Activ Publications) Beginning his career in professional journalism at The Builder Group in March 1992, Brian was appointed Editor of Security Management Today in November 2000 having spent eight years in engineering journalism across two titles: Building Services Journal and Light & Lighting. In 2005, Brian received the BSIA Chairman’s Award for Promoting The Security Industry and, a year later, the Skills for Security Special Award for an Outstanding Contribution to the Security Business Sector. In 2008, Brian was The Security Institute’s nomination for the Association of Security Consultants’ highly prestigious Imbert Prize and, in 2013, was a nominated finalist for the Institute's George van Schalkwyk Award. An Honorary Fellow of The Security Institute, Brian serves as a Judge for the BSIA’s Security Personnel of the Year Awards and the Securitas Good Customer Award. Between 2008 and 2014, Brian pioneered the use of digital media across the security sector, including webinars and Audio Shows. Brian’s actively involved in 50-plus security groups on LinkedIn and hosts the popular Risk UK Twitter site. Brian is a frequent speaker on the conference circuit. He has organised and chaired conference programmes for both IFSEC International and ASIS International and has been published in the national media. Brian was appointed Editor of Risk UK at Pro-Activ Publications in July 2014 and as Editor of The Paper (Pro-Activ Publications' dedicated business newspaper for security professionals) in September 2015. Brian was appointed Editor of Risk Xtra at Pro-Activ Publications in May 2018.

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