Columbia Weather Systems, Inc.
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was taken, and use the most current information you can obtain.
If you do not have a local barometric pressure reference (within 10 miles), but
know your elevation (mean sea level), you can use the factory calibration and
correct for your elevation. Every ten feet of elevation is equal to approximately
0.01 in. Hg, so divide your elevation in feet by ten and multiply by 0.01. This is
the correction factor to be subtracted (elevations above sea level) from the
reading (using “Calibration; baro. fine” screw) if units are in in. Hg.
3.
Move the Mode switch on the back panel of the console to the “calibrate”
position.
4.
Use a small flat head screwdriver to turn the “Calibration; baro. coarse” screw
clockwise until lowest value is displayed. Then slowly turn the screw counter-
clockwise until the display is near the calibrate value (see Step 2). Make the
final adjustment by turning the “Calibration; baro. fine” screw until the display
reads the same as the calibrate value within the nearest hundredth of an inch
(or nearest Millibar, as appropriate).
5.
When finished with calibration, move the Mode switch back to the “operate”
position. The first update of the display will occur within 12 seconds. It will take
from one to two update readings to reach the correct average pressure read-
ing.
D. CALIBRATING THE WIND SENSORS
The wind speed sensor contains no components that can be calibrated by the user.
Refer to Section 7: Maintenance and Section 8: Troubleshooting if there appears to
be a problem. The wind direction sensor is calibrated during installation. Refer to
Section 3: Installation.