SETTING USER 1 or 2
If you are in the Time of day display start from User information.
In models M51 and M52 you can set two users’ preferences. This function is practical e.g. for another family member. Make the settings ready for both users: when you start exercising, just select your personal user id 1 or 2.
USER appears, 1 or 2 is flashing.
1.Press 
SCROLL UP or 
SCROLL DOWN to select USER 1 or USER 2.
2.Press START/STOP/OK to lock your selection.
You have now selected the user id. All settings are made to the selected user.
In File, Measure, Options and Fitness test main modes you can change the user id by pressing and holding 
SCROLL UP.
If you want to disable the user id 2, set the weight of the user 2 to zero.
Continue by setting your weight or return to the Time of day display by pressing and holding START/STOP/OK.
SETTING WEIGHT
If you are in the Time of day display start reading from User information. Press START/STOP/OK until
LBS or KG appears and the digits of pounds/kilograms are flashing.
1.Press 
SCROLL UP or 
SCROLL DOWN to adjust your weight.
2.Press START/STOP/OK to lock your selection.
You have now set your weight.
You can change the weight unit between lbs and kg in watch settings.
12h time mode -> lbs
24h time mode -> kg
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