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What is a Smart Transmitter?
- Aug 30, 2018 -

In the process industries, a transmitter is used to measure various process variables, such as temperature, pressure, flow, etc. Typically, a transmitter produces an output signal (an audible alarm) in proportion to the measured value. These signals enable a process owner to take control of their processes in a better way.
 
Smart transmitters are those new age transmitters, which are equipped with microprocessors. These microprocessors are known for their advanced diagnostic abilities, stability, and accuracy (largely due to the digital compensation of non-linear readings). Additionally, these devices are also connected with a host of other process measuring devices.
Most of these smart transmitters support open standard protocols like HART, FOUNDATION Fieldbus, Wireless HART, or Profibus. However, HART (Highway Addressable Remote Transducer) is the most popular protocol in use today.