Section 4. Maintenance
User calibration 4-1
Setting the CO2 zero 4-1
Setting the primary CO2 span 4-2
Setting the secondary CO2 span 4-3
Setting the H2O zero and spans (LI-850 only) 4-3
Recovering from a bad zero or span 4-3
Cleaning the optical bench 4-4
Replacing a fuse 4-6
Appendix A. Equation Summary
Appendix B. Specifications
Appendix C. Warranty
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