Kanomax 2212, User Manual, Page: 38 / 52

8. Calibrating CO/CO
2
Sensor 35
8.2 Calibration Procedure – ZERO Calibration
Display Procedure
Connect a ZERO gas cylinder to the IAQ Monitor as described in the
previous page.
Press
key to bring up the MENU screen.
Use key to select “7. CALIBRATION”, and press key.
Use key to select a sensor that you want to calibrate
(“1.CO/CO2 ZERO”, “2. CO SPAN” or “3. CO2 SPAN”), and press
key.
(“CO/CO2 ZERO” is selected in this example.)
Decide whether to perform ZERO calibration for CO, CO2 or both at the
same time.
Use key to select “BOTH”, “CO” or “CO2”, and press key.
(“BOTH” is selected in this example.)
To switch to display the sensor, press key.
Press key.
Use key to select “YES”, and press key. Now it is ready
for calibration.
It indicates the type of a sensor whose data is displayed on the screen.
(This is only applicable when selecting “BOTH”.) The data of the one
with “*” symbol is selected. In the left picture, CO’s status is shown
at the moment. When either CO or CO2 is selected in the previous
step, only the selected type will be displayed.
…………Reading before performing a calibration
It indicates the type of a sensor whose data is displayed on the screen.
(This is only applicable when selecting “BOTH”.) The data of the one
with “*” symbol is selected. In the left picture, CO’s status is shown
at the moment. When either CO or CO2 is selected in the previous
step, only the selected type will be displayed.
…………Reading before performing a calibration
Reading before calibration