23
Note
►
Once you have pressed “Adj CO2”, the system will perform a self
-calibration using the input value
from the external meter as a reference. After pressing “Adj CO2” an offset resulting from the calibration will
be displayed on the “Offset” tab (last tab on the right). Now you can press the “Home” icon to go back to the
Main page.
Figure 29. Manual Calibration End.
Please make sure that the external Gas meter used is accurate and calibrated.
Finally, if you are unsure on the calibration you have just performed or if for any reason you want to reset
to the factory calibration simply go to the
Sensor Calibration
page (Figure 25) and press
Factory Reset
.
9.2.1.2.2
Sensors (with calibration gas)
This function allows performing a calibration using a Span Gas or pure Air or pure N
2
Tank. Before starting
the instrument calibration, make sure you have the Gas Tank connected t
o the port labeled “Air Input” on the rear
panel of the CO2-UNIT-BL, then press the Sensors
icon
. At this point several options are available (see Figure
30 b).
Figure 30. How to insert the Span Gas Calibration parameters (a
–
b).
