Pro/Forums - View Single Post - Shunts to convert current readings to voltage?

pHaestus · 03-08-2005, 01:07 AM

I have had a few people advise me that I can use a resistor as a shunt and measure voltage instead of current for 4-20 mA output devices. This is extremely desirable for me as I have 2 4-20 mA output instruments (dP xmitter and mag flowmeter) that I'd like to set up. Can you guys point me towards a link/reference/explanation of how to do this exactly? I'm assuming it somehow relates to ohm's law but please be gentle as I'm a lowly experimental chemist and not an electronics master of any sort.

03-08-2005, 01:07 AM	#1
pHaestus Big Player Making Big Money Join Date: Aug 2001 Location: irc.lostgeek.com #procooling.com Posts: 4,782	Shunts to convert current readings to voltage? I have had a few people advise me that I can use a resistor as a shunt and measure voltage instead of current for 4-20 mA output devices. This is extremely desirable for me as I have 2 4-20 mA output instruments (dP xmitter and mag flowmeter) that I'd like to set up. Can you guys point me towards a link/reference/explanation of how to do this exactly? I'm assuming it somehow relates to ohm's law but please be gentle as I'm a lowly experimental chemist and not an electronics master of any sort.