PureAire Monitoring Systems, Inc.
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To access the Auto Calibration mode, go to the Sensor Adjustment main menu.
Press the joystick right to access the
Set O2 sensor span
sub menu.
Push the joystick down to access the
Turn CO2 autocal on
menu. The display will
scroll the following:
To turn ON this feature push the joystick right. The display will scroll the following:
Push the joystick in, (like a doorbell) to activate the autocal feature. The audio horn
and CO
2
alarm horn will activate momentarily. Every week the CO
2
sensor will
automatically adjust back to 400PPM which is the ambient level on earth.
NOTE:
DO NOT use the auto calibration feature if you are monitoring
continuous levels of CO
2
for control of grow rooms. The monitor needs to be in
ambient levels for the autocal feature to operate properly.
You can also disable or “turn off” the auto calibration feature. If the CO
2
monitor is exposed to
constant high levels of CO
2,
the user
MUST
inhibit, “turn off” the autocal feature and preform
a manual baseline adjustment approximately every six months or more often if desired. To turn
OFF the auto calibration feature, push the joystick down to access the menu.
The display will scroll the following:
..Sensor Adjustment..
..Set CO2 sensor span..
..Turn CO2 autocal on..
..Press ENTER to continue..
..Turn CO2 autocal off..
