LI-6400/XT Portable Photosynthesis System
Check your software version(s), and update to the latest instrument software, if necessary.
Check when the instrument was last factory-calibrated, noting the recommended frequency.
Replace the console air filter. Refer to the manual for more information.
Clean the chamber windows and remove any debris. Replace Propafilm and leaf gaskets as necessary. Check that all upper and lower chamber o-rings are in place, if applicable. Refer to the manual for more information.
Check tubing quick connects and ensure they provide good connection. Replace if necessary (rare).
Clean o-rings and threads on scrubber tubes with a moist paper towel. Refer to the manual for more information.
Check the oil filter inside the CO2 source assembly, and replace if needed. Refer to the manual for more information.
Check and correctly position the leaf temperature thermocouple, if applicable.
Charge the batteries, if necessary; note too, that batteries should always be stored in a fully charged state.
If you have access to calibration gases, check the zero and span of the analyzers. Refer to the manual for more information.
Go through each step of the preparation checklist in Chapter 4 of the manual and resolve any issues found.