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How to convert 4 wire input to 2 wire?

How to convert 4 wire input to 2 wire?

How to convert 4 wire input to 2 wire?

(OP)
Need your help folks.
I need to bring 4-20 signal from 4 wire current transmitter to 2 wire input card (Delta V). It was surprise for me that in Delta V i have to use a pair of cards for the same field signals. What are the options?
Thanks
BB

RE: How to convert 4 wire input to 2 wire?

A signal isolator is used. Action Instruments, Moore Industries, and Phoenix Contact are among the manufacturers that provide these.

xnuke
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RE: How to convert 4 wire input to 2 wire?

The module is the same, it's the termination unit that is different. You may be able to connect your 4 wire device
+ to the even pin - to the bussed power supply negative. You can easily check this out by measuring the resistance across these 2 points. If it's 250 Ohms you are in business.
I have attached a schematic of the 2 types.
Regards
Roy

RE: How to convert 4 wire input to 2 wire?

(OP)
Thanks a lot!
That's what I was looking for. Hope I will be able to deal with these microscopic  terminals and power termination of the carreer.
Regards

BB

RE: How to convert 4 wire input to 2 wire?

The Bussed power terminals are the large ones at top of rack
Roy

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