CIRAS-3 Operation Manual V. 1.09  25  support@ppsystems.com 
 
 
When finished press Accept (F2). Again, the system will perform an automatic Diff Bal as the CO2r 
approaches its target value of 390. After approximately 2-3 minutes the system should stabilize and as 
discussed earlier should look similar to the screen below.  Again, note the new Environmental Control 
settings and stable CO2d and H2Od readings. 
 
It’s about time we start taking some data on a real plant 
Now that we’ve established that everything is working well and you are a bit more comfortable with the 
CIRAS-3 it is time to get set up to begin taking measurements on a real plant.  Press Operations (F1) > 
Rec Options (F2) to create a data file where all readings will be saved to.  Data can be recorded 
manually (by default), timed or as part of a response curve.  For this tutorial we are going to keep things 
simple and perform manual measurements with the data saved to internal memory as shown below.  
Make sure that you have Manual recording selected and “Data file folder” is set to internal memory.