Fully-encapsulated non-contact safety switch is suitable for aggressive ambient media in arduous environments
Coded electronic safety systems , like the CES-C14 from machinery safety specialist Euchner , are modern , type-4 ( in accordance with BS EN ISO 14119:2013 ) interlocking devices designed for the protection of people , machines and processes . Their non-contact transponder technology consists of a coded actuator , read head and evaluation electronics which , in the case of the CES-C14 , forms a self-contained unit featuring the read head and evaluation electronics to produce a safety switch .
The CES-C14 is ideal for use on safety guards and for the reliable position detection in machine and plant construction . Thanks to its fullyencapsulated design it is , for example , perfect for use in food processing applications where , to combat on-going complications caused by lactose and dairy products damaging exposed equipment in these arduous environments , they can significantly outlast conventional IPrated safety-switches , which increases productivity through reduced downtime and straightforward installation .
The encapsulated , ingress-proof design of Euchner ’ s unique CES-C14 safety switches comprises a two-part epoxy resin outer shell that has been extensively tested for material resistance , including alkaline and acidic cleaning agents and disinfectants in accordance with ECOLAB specifications . It is supplied with a 20M specially prepared PUR cable sheath that , in addition to a very tough outer shell , offers a high degree of ingress protection including IP67 / IP69K for the most arduous of environments , including high-pressure chemical washdowns .
The interlocks are designed with a high level of integrity and can be used in systems up to and including CAT4 / PLe ( EN
28 FDPP - www . fdpp . co . uk
ISO 13849-1 ). With two semiconductor safety-outputs these switches can easily be integrated into most safetyrelated control systems , including where the replacement of existing , less reliable switches is required . For more complex installations CES-C14 interlocks are available with ‘ series connection ’ connectivity , allowing a chain of compatible interlocks to be wired in series while still achieving up to PLe .
To ensure dependable operation , the CES-C14 switches have a high tolerance to misalignment and can be provided in both Unicode and Multicode versions . Unicode units create a ‘ matched pair ’ of switch and actuator , to provide a high level of protection against tampering by preventing personnel from manipulating the safety system with a spare actuator . This helps the facility meet the requirements of the safety standards relating to interlocking devices , including BS EN ISO 14119:2013 .
To ensure easy diagnosis of misaligned safety gates , the CES-C14 switches have two wide-angle LEDs , which are easily visible through the transparent sleeve and provide straightforward information about the status of each switch .
For further information on the CES-C14 transponder-coded safety switch , email sales @ euchner . co . uk or call the Safety Technology Centre on + 44 ( 0 ) 114 256 0123 . www . euchner . co . uk