TARGAS-1 Operation Manual V. 1.02
107
Calibration
Set CO2
The CO
2
concentration value entered at the beginning of the Calibration Process.
Actual CO2
The current CO
2
reading
Stop Button
Returns to the Calibration Menu with no changes.
OK Button
Calculates new Scale Factor and goes to next screen
Note, the displayed value may not be the value you entered in step 4 above.
When the Actual CO2
value has stabilized (i.e., not changing by more than 1 ppm after 30 seconds), press the OK button. To
cancel without performing a Calibration, press Stop.
If the process is successful, the screen below will be displayed and the new calibration constant will be
stored in non-volatile memory. If the process is unsuccessful, the message “Calibration: failed.” will be
displayed and no changes made.
The Back button returns the user back to the Main Menu.
H
2
O Calibration
This function allows the user to recalibrate the internal H
2
O IRGA used with the TARGAS-1.
Before calibrating, confirm that:
•
The absorber column is properly seated in its manifold
•
The Molecular Sieve (H
2
O scrubber) is fresh.
•
The TARGAS-1 has been on for at least 30 minutes.
•
The Gas Out port is unobstructed.
