I'm using a current transformer (LEM APR 50 BIO) to measure current at inlet of machine. The transformer outputs voltage. I'm using a MYDAQ with LABview to read in and record data. I was just looking for advice on the setup? I've never used a MyDAQ or LABview before. Do I need a resistor, or how do I find the current? Thanks

Hey delanecl

 

If the output from the transformer is just a voltage, you can read it with myDAQ without any extra hardware

Here is a tutorial on reading voltage with myDAQ and LabVIEW

http://zone.ni.com/devzone/cda/epd/p/id/6436

 

 

Tutorial for measuring current directly with myDAQ (up to 1 A)

http://zone.ni.com/devzone/cda/epd/p/id/6437

 

How to read current through a shunt resistor

https://decibel.ni.com/content/docs/DOC-12946

 

Here is a general getting started with myDAQ and LV video

http://zone.ni.com/wv/app/doc/p/id/wv-2084

 

To get help from NI engineers post your questions on the myDAQ Zone Forums

https://decibel.ni.com/content/groups/mydaq

 

 

Cheers

NI Academic Team

PS: as far as capitalization goes it is always "myDAQ" and "LabVIEW" (Lab Virtual Instrumentation Engineering Workbench)

 

Piano Staircase with myDAQ and LV

http://www.osha.gov/SLTC/walkingworkingsurfaces/index.html