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Posts Tagged minimum loop resistance
How does adding a 250-ohm resistor make HART work?
Posted by lesmanbethr in Communications, Configuration, HART, Honeywell, Level, Service, Siemens, Temperature Transmitters, Transmitters on October 6, 2011
Sometimes there’s a problem getting a loop powered HART instrument to communicate when it’s on the benchtop, but it communicated fine when wired in the field. Why is that? Read the rest of this entry »
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