Transcription of HART Transmitter Calibration - Fluke Corporation
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HART Transmitter Calibration - Fluke Corporation
From the Fluke Digital Library @ NoteIntroductionIn today s process plants, most new field instruments are smart digital instruments. Smart implies a microprocessor-based instrument with extra function-ality and digital compensation, supporting multiple sensor types or multiple variables. These instruments generally offer better accuracy, long-term sta-bility, and reliability than con-ventional analog most common class of smart instruments incorpo-rates the hart protocol, with more than five million hart instruments in use in 100,000 plants worldwide. hart , an acronym for Highway Address-able Remote Transducer, is an industry standard that defines the communications protocol between smart field devices and a control system that employs traditional 4-20 mA capabilities are required to properly service hart instru-ments: precision analog source and measure capability and digital communication capabil-ity.
3 Fluke Corporation Abridged HART Transmitter Calibration Figure 2. Model Number PV (Primary Variable) PVAO (Digital representation of the Primary Variable
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