Table of Contents
CIRAS-2 Operator's Manual Version 2.04
- 7 -
Response Curve Recording with CFM ..................................................................... 115
CFM Output .............................................................................................................. 117
Calculation Error Codes ........................................................................................... 118
Brief Introduction to Chlorophyll Fluorescence ..................................................... 119
What is chlorophyll fluorescence? ............................................................................ 119
Techniques for Measuring Chlorophyll Fluorescence. ............................................. 120
Common Fluorescence Measurements ................................................................... 122
1. Fluorescence Induction Analysis (Kautsky Curve). ........................................................................ 122
2. Quantum Efficiency of Photosystem II ........................................................................................... 124
Glossary of Fluorescence Terms ............................................................................. 125
Measuring Soil Respiration with CIRAS-2 ............................................................... 127
Soil Respiration Measurement Display .................................................................... 127
Prompt ............................................................................................................................................... 127
Parameters ........................................................................................................................................ 127
Settings .............................................................................................................................................. 128
Soil Respiration Operational Settings ....................................................................... 128
Chamber Properties ........................................................................................................................... 129
Volume (cm
3
) .................................................................................................................................. 129
Area (cm
2
) ...................................................................................................................................... 129
System Type ................................................................................................................................... 129
Recording Parameters ....................................................................................................................... 129
CO
2
Change ................................................................................................................................... 129
Maximum Time ............................................................................................................................... 129
System Temperature ...................................................................................................................... 129
Results............................................................................................................................................ 130
Data File ............................................................................................................................................. 130
Select File Mode ............................................................................................................................. 130
Treatment ........................................................................................................................................... 130
New Measurement ............................................................................................................................. 130
Graphing Options ............................................................................................................................... 130
Recording in Soil Respiration Mode ......................................................................... 131
Diagnostics ................................................................................................................ 133
Analyser A/D Reads ................................................................................................. 133
Analyser Temperature (
o
C) ................................................................................................................ 134
Atmospheric Pressure (mb) ............................................................................................................... 134
Pressure Difference (mb) ................................................................................................................... 134
Stored Zeros ...................................................................................................................................... 134
Reset Stored Zeros ............................................................................................................................ 134
CO
2
Reference ................................................................................................................................... 134
CO
2
Analysis ...................................................................................................................................... 134
H
2
O Reference ................................................................................................................................... 134
H
2
O Analysis ...................................................................................................................................... 134
Valve Settings .................................................................................................................................... 134
Apply valves to Zero ....................................................................................................................... 134
Apply valves to Measure ................................................................................................................ 135
Apply valves to Diff/Bal ................................................................................................................... 135
Flows .................................................................................................................................................. 135
Reference ....................................................................................................................................... 135
Analysis .......................................................................................................................................... 135
Log An/Ref...................................................................................................................................... 135
Temperature & PLC State ........................................................................................ 135
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