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Differential measurement of 3-wire current output

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Differential measurement of 3-wire current output

Postby Toma Morovic » Mon Oct 05, 2009 12:17 pm

I need to measure a signal from 3-wire current output sensor (4-20 mA) with PICO ADC 24 data logger. I have attached a schematic of a wiring for which I don't know if it is correct. Can anyone please inspect this scheme and tell me can I do it this way or if not, advice me how to do it?

Please help I'm stuck!!!
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Schematic Differential.jpg
Differential scheme
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Postby ziko » Tue Oct 06, 2009 9:04 am

Hi my colleague has answered your post on the helpdesk, but in the interest of other customers please find attached a diagram of how to wire it up to the ADC24. You would use the single ended input and not differential.

Kind regards
Attachments
3Wire4-20mA.pdf
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Ziko

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