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F-Guard IR3-H2 User Manual
76-M-6010-02-02
Appendix A
HART 7 Communications
HART (macronematous of Highway Addressable Remote Transducer) establishes digital data
communication over 4-20mA Current Loop cables. The HART protocol uses FSK
modulation signals superimpose at low level on top of the 4-20mA current.
The HART implementation on the F-Guard IR3/IR3-H2/UV-IR Flame Detector allows the
Control Unit to monitor the status of the detector, settings of User Configuration and
initiate field diagnostics.
The HART protocol implemented in this flame detector is corresponds to HART rev. 7.0.
It supports HART Universal commands including Common Practice and Device Specific
Commands.
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