Section 4. Troubleshooting
Instrument reports -50 ppm CO
2
or measurements jump around
If the instrument measures -50 ppm or the measurements are going between neg-
ative and positive values, or just simply not making any sense, the optical source
may have failed or be in the midst of failure. Contact technical support for addi-
tional troubleshooting help.
4-2 Using the LI-830 and LI-850 Gas Analyzers