Timex W273 NA 355-095008-02 manual To calibrate the altimeter

Models: W273 NA 355-095008-02

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Indicator hand (4TH CENTER HAND) ADJUSTMENT Pull crown all the way out. The upper and lower retro- grade hands reset to the start of their scales automati- cally. Indicator hand (4th center hand) should point to 12 o’clock. If it does not, press either A and/or B button to move hand until it points to 12 o’clock. A and B buttons move hand clockwise and counterclockwise, respectively. Hold button to move hand fast. Push crown in when done.

altimeter calibration

Before use, the altimeter must be calibrated.

Since an altimeter uses pressure to determine the altitude and pressure varies from place to place, it is important to set the altimeter to a known reference altitude value, or to a standard reference altitude of a given place. Sudden changes in pressure due to changes in weather can cause your altimeter reading to be off by +-100m (328 ft), even

if your location has not changed. Recalibrate to a known altitude when drastic pressure changes occur.

To calibrate the altimeter:

1.Pull the crown to its middle position and wait for the indicator hands to stop moving.

2.If the altimeter was OFF at the moment of crown pulling, the lower retrograde hand will point to the unit selected the last time the altimeter was used, other- wise the lower retrograde hand points to the current selected unit in altitude display. The 4th center hand and upper retrograde hand should point to the current altitude.

3.Press A or B to move the 4th center hand counter- clockwise or clockwise, respectively, until it points to the desired calibration altitude. Holding A or B

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Timex W273 NA 355-095008-02 manual To calibrate the altimeter