DAQ-2416 RTD and Load Cell interface examples

[Lion]

Dear Digilent,

We want to reuse DAQ2416 in house for *PT100 RTD* and *Bridge output load cell* measurements. 

Do you have any example how to convert 4-20mA input to do mentioned sensors? 

Thank you for your support.  //Leo Chang

 

[Jeffrey]

Hello @Lion

Please read this knowledge base article on that topic:  https://kb.mccdaq.com/KnowledgebaseArticle50526.aspx.  Be sure to configure the input channel of the USB-2416 you plan to use for 4-20mA as differential.

Regarding your PT100 RTD, unless you have a signal conditioning module, using the USB-2416 directly with an RTD is not recommended as RTDs require a constant current source a feature not included in the USB-2416. I recommend you check out this doc:  https://www.mccdaq.com/pdfs/anpdf/Temperature-Measurement-White-Paper.pdf

Measurement Computing does make devices capable of reading RTDs, the USB-TEMP and USB-TEMP-AI (https://www.mccdaq.com/usb-data-acquisition/USB-TEMP-Series.aspx)

Thanks,

Jeffrey