4-20mA temperature transmitter

[wosborn]

Hi gang - newby here. I'm using a Honeywell ST250 2-wire 4-20mA temperature transmitter to send and record a continuous signal to a PCI-6025e. Is there any way to do this without an intermediate signal conditioner? I am clear on the need for a 250 ohm resistor to convert the 4-20mA to voltage, but I'm not clear on the wiring or the appropriate vi to use.

[McKala[DE]]

It sounds like you are just getting started with data acquisition in LabVIEW.  Some great references for getting started are:
Complete Data Acquisition Tutorial
Learn 10 Functions in NI-DAQmx and Solve 80% of Data Acquisition Applications

For wiring your temperature transmitter, take a look at the Field Wiring and Noise Considerations for Analog Signals

Let us know if you have some more specific questions.

Regards,
Micaela

[Conseils]

Its fairly straight forward, just measure the volt drop across the resistor.

I put the resistor in the return path on the low potential side, I also use 12v rather than the standard voltages. Just in case........ however

Watch our for floating power supplys though !!!