Timex Intelligent Quartz W273 Manual De Uso página 34

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
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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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