Sensor assembly for hygenic material processing systems

A sensor assembly for use in an automated process control for a hygienic material processing system comprising:

• a replaceable sensor module;
• an assembly housing containing an assembly housing processor and an electrical connector connected to the processor and accessible by said automated process control system;
• said replaceable sensor module including an enclosure adapted to be mounted in a position to sense a process variable, a process variable transducer positioned in said enclosure so as to be exposed to the process material being processed, at least one electronic circuit connected to said transducer, and a non-volatile memory having stored therein specific profiling data for the sensor module;
• said assembly housing processor in said assembly housing having data representing a desired sensor assembly output characteristic, said processor being responsive to receipt of said specific profiling data and to the data representing the desired sensor assembly output characteristic to calibrate the sensor assembly to provide the desired sensor assembly output characteristic when connected to the sensor module having the specified profiling data,
• said assembly housing having a cover secured thereto, said assembly housing also including an opening for accepting a plug body through which passes at least one electrical connector, said assembly housing having at least two paths for migration of moisture from the exterior of the assembly housing to the interior of the assembly housing;
• at least one axial seal positioned along a first of said migration paths to resist the passage of moisture from the exterior of the assembly housing to the interior of the assembly housing;
• and
• at least one radial seal positioned along said first migration path to resist the passage of moisture from the exterior of the assembly housing to the interior of the assembly housing.