CIRAS-3 Operation Manual V. 1.09  84  support@ppsystems.com 
 
Section 8.  Operations 
Operations (F1) 
From the numeric or graph display, press Operations (F1) to access numerous system functions 
including: 
•  Recording Options (Rec Options – F2) 
•  Set Clock (F3) 
•  View saved data (View Saved – F4) 
•  Calibration (F5) 
•  Diagnostics (F6) 
•  Firmware Upgrade (FW Upgrade-F7) 
•  Help (F8) 
Recording Options 
Press Operations (F1) > Rec Options (F2) to set up a recording session.  There are 3 options available 
•  Manual recording – Normally used for individual leaf level gas exchange measurements. 
•  Timed recording 
•  Response curves – For automated, pre-programmed scripts for A/Ci curves, light 
response, etc. 
Manual Recording 
Select the desired recording option at the top of the screen by using the Left or Right arrow keys – the 
first option is Manual recording.   For most leaf gas exchange measurements in the field, this method of 
recording is most common.