5. Operation
Controls and displays
The controls and the display are on the display head on the column.
Switch scale on and off
press briefly
hold down
in function menu
press briefly
hold down
in function menu
Activate BMI or pre-Tare function, and confirm key for entries
In order to ensure that the display can be
read from different positions, the display
head can be rotated 180°.
Model 644
s switch between kg and lbs
s switch between kg and sts
s increase value, scroll
s activate/deactivate hold function
s set display to zero, activate/deactivate tare function
s decrease value, scroll
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