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Note: Use Manual-Altitude (MAN-ALT) for one-time, manual re-

calibrations. Use Home Altitude and Base Altitude 1,2,3 to store

altitude reference points that will be used multiple times.

Note: If you have already entered a reference point, you can

quickly select that reference point and hold STOP/RESET to

quickly calibrate.

INDIGLO

NIGHT-LIGHT

In any mode, when you press the INDIGLO

button, the watch face will light

up for easier viewing. You can also activate Night-Mode

if you press and

hold the INDIGLO

button until you hear a beep. The Night-Mode

feature

is a very useful feature in low light conditions because it allows you to press

any button to light the watch for 2 to 3 seconds. Once activated, the Night-

Mode

feature stays active for 7 to 8 hours. If you want to deactivate Night-

Mode

before 7 to 8 hours have elapsed, press and hold the INDIGLO

button until you hear a beep.

ATTENTION: Sudden changes in barometric pressure can

impact your altimeter reading. If possible, re-calibrate to a

known altitude when drastic pressure changes occur.

Setting and Calibrating Your Reference Points

1. Press MODE until CAL is shown.

2. Hold SET to begin the calibration.

3. Press START/SPLIT (+) to scroll among the reference points (HOME ALTI,

BASE 1 ALTI, BASE 2 ALTI, BASE 3 ALTI, MANUAL ALTI, BARO, and

WEATHER).

4. Press MODE (NEXT) to begin the setting process.

5. Press START/SPLIT (+) or STOP/RESET (-) to increase or decrease set-

ting values.

6. Press MODE (NEXT) to advance to the next setting option.

7. Press SET (DONE) to finish.

8. Once you are on location, press and hold STOP/RESET to select and cal-

ibrate to that reference point in CAL mode. When the watch beeps, the

calibration is complete.

TMX_W253_WS4_EN.qxd 11/24/08 12:15 PM Page 40

Timex Expedition WS4 User Manual

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