The wide-gap magnetic technology used in Avtron encoders can 'see through' dust , dirt water, oil and grease. The non-contacting technology uses a rotor system with radial north and south pole inserts and a stationary, magnetoresisitive sensor. Version are available as separate rotor/stator units without bearings or as fully housed and sealed assemblies for severe duty use complete with support bearings. Diagnostics can be built into the assembly allowing remote identification of problems before any potential failure.
Avtron's latest hollow-shaft magnetic encoder, the XT45, is aimed at offshore oil-rig position sensing applications. It has a 5,000 pulse/revolution resolution with full quadrature A,B and Z channel output, and boasts a severe duty specification that includes a shock rating to 300g, vibration to 20 g in any direction with an operational temperature range from -40ºC to +100ºC. The labyrinth sealed encoder is rated to IP67 and a polyurethane enamel paint finish shrugs off dirt, oil, mild acid and salt water contamination. It has universal 5-24V operation, a self diagnostic alarm output and is fully protected from wiring problems and surges.