Sensor, Pressure, Fisher, MVS, 1/4", 3625#

The MVS205 Multi-Variable Sensor provides static pressure, differential pressure, and process temperature inputs to a FloBoss Flow Manager or to a Remote Operations Controller (ROC). The inputs from a MVS sensor are used in performing orifice flow calculations. The MVS205 operates as a remote unit which communicates via a serial format.

Functionally, the MVS is a sensor device that mea- sures three flow-related variables simultaneously. These variables are continuously available to the FloBoss or ROC unit that polls the MVS. Two versions of the MVS sensor are available: MVS205P with reference accuracy of 0.075% and MVS205E with reference accuracy of 0.10%.

The MVS consists of a transducer and an interface circuit. The transducer, contained in the sensor body, uses capacitance-cell technology to sense differential pressure and piezoresistive technology to sense the static (absolute or gauge) pressure.

The transducer electronics convert the pressure variables directly into a digital format, allowing accurate correction and compensation. The raw temperature is converted by the interface board into digital format. A microprocessor linearizes and corrects the raw pressure signals (from the sensor) using characterization data stored in non-volatile memory.