How to Calibrate an Altimeter

In order to calibrate the altitude of an object you need an altimeter. Calibration is the process of determining the specific adjustment needed to get an accurate measurement. A calibrated altimeter is used to aid in the flight of planes and the distance above sea level. Altimetry is the measurement of altitude and bathymetry is the measurement of depth underwater.

Instructions

Difficulty: Moderate

1. Select the mode you want. Press the "mode/next" button. Press the "adjust" button and press and hold for 2 seconds.
2. Watch for a light that blinks. "Adjust hold" will be displayed.
3. Push "recall/+," which will allow you to increase or advance the flash.
4. Find the "toggle" button and press. This will allow you to decrease or reverse the flash.
5. Take your finger and press the "mode/next" button again to move to the next adjustment.
6. Adjust the flash repeatedly until the altitude is set correctly.
7. Save your adjustments. Press the "adjust" button.

Tips & Warnings

• Every time you use an altimeter it must be recalibrated.
• Hikers need to calibrate their altimeter at the bottom of the mountain for accuracy.