Patent ID: 9354616
Filing Date: 2016-05-31
CPC Classification: B66F,G05B

Claim Text:
1. A system for monitoring or controlling equipment in a hazardous area, the system comprising: at least one sensor disposed within a hazardous area, each sensor being non-electrical and being adapted to interact with the equipment and generate at least a first non-electric sensor output and a second non-electric second sensor output, the first sensor output being indicative of a first equipment state and the second sensor output being indicative of a second equipment state, wherein the sensor outputs comprise output fluid flows; a non-electrical communication link comprising a fluid conduit extending from the at least one sensor across a boundary between the hazardous area and a non-hazardous area, the non-electric communication link to carry the sensor outputs from the at least one sensor; and at least one controller disposed in the non-hazardous area, the at least one controller coupled to the communication link and operable to generate a controller output signal based on the sensor outputs.