4-20ma, analog signal |
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4-20ma, analog signal |
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 Jun 11 2008, 03:54 AM
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#1
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Intermediate Member  Group: Full Member Posts: 13 Joined: 9-May 08 Member No.: 4,547  |
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? |
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Jun 11 2008, 10:02 PM
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#2
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Posting Freak Group: Moderator Posts: 2,088 Joined: 24-April 02 From: Christchurch, New Zealand Member No.: 1 |
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 administrator
Skype Contact = markempson | phone +64 274 363 067 LMPForum | LMP Tech Warehouse | L M Photonics Ltd | Empson family | Advanced Motor Control Ltd | LMP Software | Mark Empson Website |
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Lo-Fi Version | Time is now: 16th October 2008 - 12:09 AM |
