AcuRite 00484 Instruction Manual page 13

Calibrate Barometric Pressure
The weather station default pressure mode is "AUTO". In auto mode, the
pressure will calibrate itself over a 14 day Learning Mode. Barometric pressure
can be manually calibrated:
1. Press AND HOLD the "SET" button (located on the back of the display)
for at least 10 seconds to enter manual pressure mode.
2. The un-calibrated pressure will be displayed. Press AND HOLD the "▲",
"▼", and "SET" buttons for at least 5 seconds.
3. Press and release the "SET" button three times to enter barometric pressure
calibration mode.
4. Press the "▲" or "▼" buttons to calibrate the pressure higher or lower.
5. Press the "SET" button to confirm the calibration adjustment.
Note: The " " icon will remain illuminated next to the calibrated value.
After 10 seconds of inactivity, the display will save your adjustments and exit
calibration mode. Note: Calibration will be erased if the display is reset, set
to auto pressure mode, or if the batteries are removed and power adapter is
unplugged.
To exit manual pressure mode and return to auto pressure mode press and
hold the "SET" button for at least 10 seconds.
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