CIRAS-3 Operation Manual V. 1.09  55  support@ppsystems.com 
 
PLC3 Narrow and Conifer – Three control options are available: 
•  Cuvette temperature 
•  Track cuvette to ambient 
•  Disable temperature control 
TIP 
The PLC3 ambient temperature sensor will represent an approximate temperature to ambient for 
reference purposes only.  Tamb may vary 1-3 
o
C from actual ambient depending on local conditions and 
orientation of the cuvette. 
LCD on Leaf Cuvette 
 
All PLCs include an LCD for display of parameters.  
Press the S button located on the cuvette 
open/close lever to toggle between displays to view 
additional parameters.  Press R to record a 
measurement if in record mode.