34 • Calibration Mode
GX-2009 Operator’s Manual
Setting the Date and Time
Entering the DATE menu item allows you to set the date and time.
1. When the DATE Screen is displayed, press and release the POWER MODE button. A
screen appears with the year flashing in the upper left, the month and day in the upper
right, and the time in the lower right.
2. Use the AIR button to display the desired year.
3. Press and release the POWER MODE button to save the setting. The month setting
flashes.
4. Repeat steps 2 and 3 to enter the month, day, hour and minute setting. When you save the
minute setting, you return to the DATE Screen.
Performing a Fresh Air Adjustment
Entering the AIR CAL menu item allows you to perform a fresh air adjustment.
Perform a fresh air adjustment in Calibration Mode when you are performing a calibration
before proceeding either to the AUTO CAL or ONE CAL menu item to perform a span
adjustment. A fresh air adjustment performed in Calibration Mode is the same as a fresh air
adjustment in Normal Mode. The AIR CAL menu item is available in Calibration Mode for
convenience when performing a complete calibration.
WARNING: Calibrate the GX-2009 in a non-hazardous environment.
1. Find a fresh air environment, an environment of normal oxygen content (20.9%) that is
free of toxic and combustible gasses.
DATE
08 - 8. 7
DATE
16:06
AIR CAL
www.calcert.com
1.800.544.2843
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