PP Systems CIRAS-2 - Calculation Error Codes

Recording Chlorophyll Fluorescence
CIRAS-2 Operator's Manual Version 2.04
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Calculation Error Codes
After chlorophyll fluorescence calculations have been made, error codes may be reported as follows:
Error Message
Error Code
Meaning
Fo Low
1
Fluorescence Origin Low
Fm Low
2
Fluorescence Maximum Low
Fm<Fo
4
Fluorescence Maximum less than Fluorescence Minimum
Fo‟ Low
8
Fluorescence Origin Prime Low
Fm‟<Fs
16
Light adapted Fluorescence Maximum less than Steady
State Fluorescence
A single calculation can have one or more errors.
Errors 1, 2 and 4 can apply to Fv/Fm calculation.
Error 16 can apply to phiPS2
Error 8 can apply to Fo‟
Errors 8 and 16 can apply to phiPSR