Section 3. 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.
3-2 Using the LI-830 and LI-850 Gas Analyzers
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