How to Zero and Span the IRGASON and EC150This video demonstrates how to properly zero-and-span your IRGASON or EC150 in a laboratory setting.

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.

Sections:
2:42 — Setup
8:00 — Check Water Vapor
12:12 — Check CO2
14:47 — Check Zero
16:05——设置零、二氧化碳和水蒸气