Hofmann Futura, Руководство по эксплуатации

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8.2 Low voltage indication:
In case the dry battery or rechargeable battery are used, to
replace with the new one, if a symbol of battery appears on the
upper side of the screen.
9. Precaution for use
a. To preheating it as per the rule before use it .
b. The total mass of tare and weighing substance should not
exceed the limitation of Max. capacity.
c. If the weighing is inaccurate, please calibrate the balance by
weight.
d. In case of taking out the round pan, please first turn it
around clockwise and take out. Do not put out upward hardly,
so as to avoid the damage of the load cell.