PureAire Monitoring Systems, Inc.
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Push the joystick down to access the next sub menu;
Set Alarm 2, CO2, Hysteresis.
on the digital display.
It will display a value 00 PPM, (factory default). Pushing the joystick up increases the
CO
2
PPM up to a maximum value of 1000 PPM. Adjust the digital display until the
desired hysteresis value is selected.
After entering the alarm setting push the joystick left to enter the setting. The display
will scroll the following:
Pushing the joystick again to the right will display a value 0.0%. Pushing the joystick
up increases the percentage up to a maximum value of 2.5%. Adjust the digital display
until the desired hysteresis value is selected.
5.5.9 Auto Calibrate feature for CO
2
NDIR sensor
The CO
2
sensor is set to automatically calibrate itself to the ambient carbon dioxide level
on earth. The ambient CO
2
level is 400 PPM. The CO
2
monitor has a menu that permits you to
activate this feature by “turning on” this feature. If the CO
2
monitor is not exposed to constant
high levels of CO
2,
the
sensor will automatically adjust the baseline setting and there is no
further action required by the user. The sensor is factory calibrated and requires no user
calibration.
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 lower levels for the autocal feature to operate properly.
..Set Alarm Hysteresis…
..Set Alarm 2, O2, Hysteresis…
50 PPM
..Set Alarm 2, CO2, Hysteresis…
