How to Zero and Span the IRGASON and EC150

Overview

As is the case with all optical instruments, open-path eddy-covariance instruments may drift slightly with exposure to natural elements. Therefore, routine maintenance requires a periodic zero-and-span procedure. This video demonstrates how to properly zero-and-span your IRGASON or EC150 in a laboratory setting. For further details on this process please consult the manual or contact Campbell Scientific support. <br/><br/> Sections:<br/> 2:42 — Setup<br/> 8:00 — Check Water Vapor<br/> 12:12 — Check CO2<br/> 14:47 — Check Zero<br/> 16:05 — Set the Zero, CO2, and Water Vapor