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  1. garymiles

    Two-wire 4-20mA specs / expectations below 4 mA

    Hi. I'm new on this site and was interested by your comments so far. Regarding signal handling below 4 mA and above 20 mA).. I think the NAMUR NE43 standards are pretty recognised as a definition of diagnostic signal levels, defining under/over range values 3.8mA / 20.5 mA and detected failures...

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