Timex M515 M640 Heart Rate Monitor EP9TMXM640 3348A-TMXM640 User Manual

By pressing 

when the + sign appears

above it, you may easily change the most common setting for the
setting group without initiating the entire setting procedure. For
example, when viewing the heart rate target zone alert setting (TZ
ALERT), pressing START/SPLIT will allow you to quickly select a
new target zone for the alert.

Unlike other setting functions in the Watch, Configure Mode
includes a menu hierarchy for the setting groups.

1. Press MODE until Configure Mode appears.

2. Press

(DISPLAY) or

(STOP/RESET) to move to the next or

previous setting group.

3. Press SELECT (SET/FORMAT) to enter a setting group.

4. Press

(DISPLAY) or

(STOP/RESET) to navigate through

the options within a setting group.

5. Press SELECT (SET/FORMAT) to select an option within a 

setting group. This may allow you to change a setting or take you 
to another level.

6. Press + (DISPLAY) or - (STOP/RESET) to set the option within a

setting group.

7. Press DONE (MODE) when you have finished setting an option

within a setting group.

8. Press DONE (MODE) again to return to the setting group level.

Use Configure Mode to set options to enhance the performance of
other Watch modes, for the following three setting groups:

Heart rate settings allow you to set target zones for

your heart rate.

Hands-free settings provide options 

to configure the Watch to operate automatically.

Watch settings provide options for 

customizing the general operation of the Watch, including 
hiding data or modes.