Help and Documentation

Welcome to the LI-840A CO2/H2O Gas Analyzer help and documentation.

Top Resources

LI-840A CO2/H2O Gas Analyzer Instruction Manual


Instruction manual for the LI-840A CO2/H2O Gas Analyzer.

Air Pumps and Accessories for LI-COR Analyzers

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

Source, Detector, and Optical Path Replacement Instructions

Instructions for replacing the source, detector, and optical path in the LI-820 gas analyzer.

Measuring pCO2 and DIC in water

A description of pCO2 and DIC systems.

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LI-840A Factory Recalibration

Recommended Recalibration Frequency: No regular factory recalibration required.

What's included with recalibration?

Request Service and Recalibration

To request factory service or recalibration for a LI-COR instrument: Request Factory Service or Recalibration

Service will be performed at our US office in Lincoln, NE USA, European office (LI-COR Biosciences - GmbH), or by a distributor. To locate your country and designated point of contact click here.

Looking for a Calibration Certificate?