TARGAS-1 Operation Manual V. 1.02  46  support@ppsystems.com 
 
PAR reading from sensor (μmol m
-2
 s
-1
) 
Sample gas flow ( cc/min)   
Air pressure in IRGAs (mb) 
Soil moisture content (%) 
Indicates the machine is in Differential mode 
Goes back the previous screen (Measure Screen 1). 
Selects the next measurement screen (Graph Screen). 
 
Graphic Display Screen 
The Graphic display screen shows a real-time display of CO2r, CO2a or CO2d.  
 
CO
2
 Reference.  Fixed range: 0 – 1000 ppm 
CO
2
 Analysis.  Fixed range: 0 – 1000 ppm 
CO
2
 Differential.  Fixed range: -50 – +50 ppm 
X-axis time (range 3 minutes) 
Goes back the previous screen (Measure Screen 2). 
Selects the next measurement screen (Measure Screen 1). 
 
To display one of the 3 parameters simply press the corresponding button.  Only one parameter can be 
displayed at a time. When selected it will be have a dark border around it.