Answer Posted / jigaranadkat

HART : Highway Addressable Remote Transducer

This is a communication protocol in which all information related to transmitter / instrument travels in the same pair of power loop of transmitter.

This information is transmitted by superimposing HART signal (AC) on 4-20mA DC signal. Hence HART DC value remains zero and it will not impact 4-20mA measurement.

The digital HART information is transmitted by two different signal 1200 Hz (Represented as 1) and 2200 Hz(Represents 0) in digital system.

Since transmitter are Highway Addressable, it is possible to configure transmitter remotely through a management system (e.g. AMS or PRM).

Hope this will help

Regards,
Jigar Anadkat

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