Explosion-protected Encoders from Leine & Linde
Product Announcement from Leine & Linde AB
An explosive atmosphere may occur in many heavy-duty industries where encoders are used to provide position and speed feedback. To combat that, encoders that conform to ATEX directives should be used to increase safety in potentially explosive atmospheres. Leine & Linde's product range of encoders in their 300, 500, 600 and 800 series conform to ATEX, specifically for lower Zones (2/22), and are now available in North America for use in these environments.
ATEX is an acronym for ATmospèhere EXplosible (French, "explosive atmosphere"). It is a commonly-recognized European Union directive that sets out a detailed code for products used in hazardous locations. The ATEX directive states that the construction must protect against penetration of dust in hazardous quantities and guarantee that the surface temperature is below the ignition temperature of dust/air mixtures and below the smoldering temperatures of dust deposits. The construction must minimize the occurrence of arcs, sparks and hot surfaces, which in normal operation might increase the risk of explosion.
These types of encoders are gaining increasing popularity as machine safety issues are becoming more important. It is well known that when used in hazardous environments, electronic devices must be handled with special care - even a tiny spark can have fatal consequences. The energy contained within the encoder circuit must not be allowed to ignite vapors and gases in the environment. An ATEX encoder shields against ignition.
For more information on these encoders, Leine & Linde can be accessed directly via the web site at www.leinelinde.com. The North American contact for Leine & Linde product is Tom Wyatt (at 847-884-3713 or email@example.com) in the HEIDENHAIN offices at 333 E. State Parkway, Schaumburg, IL 60173.
Leine & Linde is based in Sweden with North American distribution through HEIDENHAIN Corporation in Schaumburg, IL, USA. Leine & Linde is well known worldwide for offering high quality, heavy duty encoders of the incremental, absolute and bus types, and are noted for their product robustness designed to cope with the harshest of environments, such as those with high vibration, dirt and cold temperatures. These heavy, severe duty encoders are suited for drive and measurement applications and are often found in industries such as pulp and paper, forest and wood processing, agriculture, aggregate and mining equipment.