CI-340 Operation Manual
CID Bio-Science
1554 NE 3
rd
Ave
Camas, WA 98607, USA
Phone: +1 (360) 833-8835
Fax: +1 (360) 833-1914
[email protected]
www.cid-inc.com
66
APPENDIX D
CI-301SR SOIL RESPIRATION CHAMBER
The CI-301SR Soil Respiration chamber allows easy measurements of soil respiration using the
Closed System mode of the CI-340.
Connect the CI-301SR (see Figure D-1) to the CI-340 in the Closed System configuration (refer
to the CLOSED SYSTEM section if you need further assistance). Insert the PAR sensor firmly into
its respective slot on top of the soil respiration chamber (refer to the LEAF CHAMBER - CARE
AND USE section). The IR Temperature sensor must be used to detect soil temperatures. Plug
its cable into the CI-340, then into the respective hole on top of the chamber.
Now, place the CI-301SR on the area of soil that you wish to measure with the open end of the
cylinder downwards. Rotate the chamber slightly to ensure that the cylinder is seated into the
surface of the soil; a good seal is important to obtain accurate readings. If you need PAR
readings, check so that the PAR sensor is under direct sunlight.
Soil respiration results will be shown as the photosynthesis reading. Note that the readings will
be displayed in negative values.
Clean the CI-301SR after use. A soft, dry cloth will usually suffice, but water and mild detergent
may be used, if necessary.
Never immerse the chamber in water or pour water into the
cylinder
. The chamber contains electronic components, which can be damaged by liquids.
Setup Procedures
•
Create file
•
Time Interval – Sampling Time
•
Photosynthesis Mode P
•
Zero for no accessory units
•
Leaf area = soil area = 73.4 cm²
•
Recommended flow rate 0.5 lpm
•
Chamber volume is 0.634 liters with soil at the edge of chamber
•
Chamber volume is 0.580 liters with edge 1 cm. into soil
•
Time or CO
2
End (Time is the length to run measurement; CO
2
is the concentration level to
end measurement). Enter T or C
•
Enter time value or CO
2
concentration value
•
Measurement begins
Summary of Contents for CI-340
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