How can RLS encoders be adapted for use in deep sea applications?

The OnAxis™ have not specifically been designed for use in deep sea applications but due to their robust design customers have found that they work well under these conditions. To assist we have created a special version of the RM22, RM36 and RM44 encoders with vent holes drilled into their bodies so that the electronics inside are at the same pressure as the surroundings. For high pressure applications most customers then flood the encoder with a dielectric fluid. Though tested successfully by our customers, RLS cannot guarantee the same specifications hold true as for the standard RM22, RM36 and RM44 versions, especially MTTF. Although unlikely, the electronic components used are standard components and could contain small air pockets which could burst if exposed to high pressures in deep sea applications.

RE encoders with bearing/shaft have also been successfully used in deep sea applications with the use of vent holes. In this case, the dielectric fluid must be non-conducting oil to prevent damage to the bearings, which are not sealed off inside the encoder body.