Measuring Chlorophyll Fluorescence with the CFM 
 
CIRAS-2 Operator's Manual Version 2.04 
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Stand-Alone Operation (User Interface) 
After all electrical and pneumatic connections are made as described in the section Connecting the CFM 
to CIRAS-2, perform the following to operate the system from the PP Systems‟ User Interface: 
 
1.  Switch the “CFM” slide switch to On. 
2.  Switch the “CFM Control” slide switch to CIRAS. 
 
The correct COM ports will be automatically selected by default.