Autopilot APCECOD Manual - Page 9

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Page 8

APCECOD

"HOW TO calibrate" CO2 PPM

1) Place the controller outdoors in a shaded area. Do not place in

direct sunlight. Keep away from people, animals and other CO2

emitting areas.

Note: If calibration will be in a high traffic (vehicles)

area or a highly populated area a slightly increased

calibration to around 400-475 PPM is recommended.

3) Plug in the controller and allow to "warm up" for a minimum of

30 minutes. For best results, allow to "warm up" for an hour or

longer.

4) Press Calibrate CO2 PPM to activate the automatic calibration.

The new CO2 level

380_PP) will be displayed. Press the up or

down button to change the calibration setting. DO NOT exhale or

breathe on the unit while activating the calibration function.

5) Press Enter / Reset to start the calibration sequence,

(Co2_CAL) will be displayed and CO2 calibration LED will be

blinking. Leave controller alone for about 10 minutes.

6) When calibration is complete the display window will return to

normal display and functions. Place the sensor back into the

grow area. All other functions remain as they were prior to

calibration.