Universal sensor
September 16th 2005

A new type of sensor has reduced the number of types of inductive proximity sensors at Ford’s Cologne plant from 400 to 12, generating purchasing savings of 30 per cent, writes IP&E editor, Ian Clay

Turck Banner says Uprox+ is genuinely a universal sensor. Its patented, multi-coil system, enables switching distances 250% higher than inductive sensors. As well as normal strength steel, increased performance also applies to target materials such as iron, stainless steel, copper, aluminium and brass. Turck Banner also claims switching speed is increased.

As the sensors don’t have a ferrite core they are not susceptible to the strong magnetic fields that occur in the electric welding process, making them particularly suitable for the automotive industry, replacing special weld-field immune sensors on assembly lines.

Damage to sensors through poorly adjusted targets or varying mechanical tolerances are a common occurrence in many industries but here too the design of Uprox+ can save downtime. When mounting Uprox+ sensors, only small metal free zones have to be observed.

With flush mountable barrel types, additional mechanical protection is afforded by recessed mounting by half a turn of the thread. Non-flush sensors provide flexibility due to the integrated pre-damping protection function. The metal free mounting zone can be significantly reduced compared to conventional sensors with a ferrite core.

Non-flush sensors may be embedded in metal up to the upper edge of the thread with no more than a 20% reduction in switching distance.

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