Patent ID: 6839546
Filing Date: 2005-01-04
Classification: G01D

Abstract:
1. A process transmitter configured to measure a process variable of an industrial process, comprising: a process variable sensor configured to sense the process variable and responsively provide a process variable sensor output; first transmitter electronic circuitry coupled to the process variable sensor; second transmitter electronic circuitry configured to cooperate with the first transmitter electronic circuitry; a two-wire process control loop coupling configured to provide power to the circuitry from a two-wire process control loop; a housing having a first cavity housing the first transmitter electronic circuitry, the housing including a barrier between the first transmitter electronic circuitry and the second transmitter electronic circuitry; and a non-physical electromagnetic link between the first transmitter electronic circuitry and the second transmitter electronic circuitry configured to carry data therebetween.