03-01-2013 05:56 AM
Hi,
I need to utilize NI 9203 to measure pressure and energy consumption at the same time. I have Emerson PT-5 pressure transducers (5 pieces) and a network analyser (Entes MPR60S). Both of their signal output are 4-20 mA. The problem is here. Pressure transducers need to be supplied 24 V whereas network analyser does not need any electricity supply. I use a DC power supply for pressure transducers and wire their + cable to the power supply's one port and their - cables to the NI 9203 ports (AI0...AI4). I also wire power supply negative port to the NI9203 COM port. Now how can I wire the network analyser to the NI9203 AI5? It does not need power supply and which port of the network analyser should I need to wire to NI9203? Confused a lot...
03-04-2013 05:03 AM
I attached the planned wiring scheme. Is it right? Is it possible to meet up a problem with this wiring scheme?
03-05-2013 05:29 PM
Hi newbieeng,
Here's our wiring recommendations for most application, http://www.ni.com/white-paper/3344/en#toc3 . Please reference the sections regarding floating sources.