TARGAS-1 Operation Manual V. 1.02  132  support@ppsystems.com 
 
Where 
‘XC’ are the Co2 Irga zeros 
‘XH’ are the H2o Irga zeros 
 
This command initiates a zero. During a zero operation, the TARGAS-1 transmits 
a Z string every second until the end of the zero operation. No “M” strings are sent 
during this time. This command can be initiated by the user or by the TARGAS-1 
itself.  
 
Example:  
Sent from Host: Z<CR> 
Received from TARGAS-1:  
+<CR> 
Z, 025<CR> 
Z, 024<CR> 
… 
 
A zero has been initiated by the user. In this example, 025 and 024 indicate the 
number of seconds remaining in the zero operation. 
 
Get/Set Parameter Values Table 
section. The values are: 
1=Automatic, 2=User Set, 
See Zero Settings 
section.  
See Averaging Settings 
section. 
See Alarm Settings 
section. 
See Alarm Settings 
section.