rseee Posted June 11, 2008 Report Share Posted June 11, 2008 What will be the distance limitation of 4-20mA signal? what are all the parameters which limits /to be considered if we carry a long distance 4-20mA signal? Link to comment Share on other sites More sharing options...
marke Posted June 11, 2008 Report Share Posted June 11, 2008 Hello rseee The maximum distance that a 4 - 20mA can be carried is dependent on the open circuit source voltage, receiver resistance and the line resistance. The maximum theoretical total resistance of the lines and load is equal to the source voltage / 20mA. If there is significant electrical noise in the immediate environment, then there can be issues with errors due to the induced noise. Best regards, Mark. Mark Empson | administratorSkype Contact = markempson | phone +64 274 363 067LMPForum | Power Factor | L M Photonics Ltd | Empson family | Advanced Motor Control Ltd | Pressure Transducers | Smart Relay | GSM Control | Mark Empson Website | AuCom | Soft Starters Link to comment Share on other sites More sharing options...
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