Support: LI-6251 CO₂ Gas Analyzer

Air Pumps and Accessories for LI-COR Gas Analyzers: Suggested Parts and Vendors

Suggested parts and vendors for air pumps and other accessories needed to flush the sample cells of many LI-COR closed-path gas analyzers.

Internal Soda Lime/Desiccant Bottle Replacement Instructions for the LI-6251, LI-6252, and LI-6262

Instructions for replacing the internal soda lime/desiccant bottles in the LI-6251, LI-6252, and LI-6262 infrared gas analyzers.

Effects of temperature and pressure on CO₂ infrared absorption with special emphasis on problems resulting from operation at high flow rates.

Article describing the effects of temperature and pressure on absorption of infrared energy by carbon dioxide.

LI-6251 CO₂ Analyzer Cannot Communicate Using an RS-232 Serial Port or Serial Cable

This FAQ describes how to use an external device to convert analog signals from the LI-6251 into a digital format for conversion in a computer.

LI-6251 CO₂ Analyzer with drifting problems or unable to zero or span

This FAQ describes how to zero and/or span the LI-6251 when it has drifted excessively.

Scrubbing Chemicals in LI-COR Gas Analyzers

Note describing a change in chemical scrubbers used in gas analyzers.