Timex T49761 - Manual (Page 22)

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E
If you don’t know your altitude, you can find out the current sea
level pressure (published online or in a newspaper) and cali-
brate the sensor to barometric pressure.
The watch also has five Altitude Reference Points (REFERENCE HOME,
REFERENCE BASE 1, REFERENCE BASE 2, REFERENCE BASE 3, and REFER-
ENCE MAN-ALT) which allow you to set the altitude of a known location
ahead of time, and then re-calibrate your watch at that point with one push
of a button.
NOTE: While setting an alarm, quickly scroll through the setting
values by holding down START/SPLIT (+) or STOP/RESET (-).
— The AM/PM value will (+) only appear if you have set the
watch to display the 12-hour format.
When the alarm is armed, a bar is shown in alarm and time of
day modes above the alarm icon.
CALIBRATION MODE
The WS4 ™ watch has the ability to take extremely accurate measurements.
You should calibrate either the Altimeter (MANUAL ALTI) or the Barometer
(BARO), and the Weather Icon (WEATHER) prior to first use. And, as with any
precision instrument, you should calibrate frequently to maintain accuracy.
NOTE: For the best accuracy, choose the calibration method
based on the most accurate reference source available. For
example, if you are standing at a trail head and know the cor-
rect altitude, then the most accurate calibration will be altitude.
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HOME
(HOME 1 ALTI)
(ie. 800 M)
TRAIL HEAD
(BASE 1 ALTI)
(1200 M)
PEAK
(BASE 2 ALTI)
(2000 M)
LODGE
(BASE 3 ALTI)
(1000 M)
EXAMPLE: FAVORITE HIKE
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