Besantek BST-HVD2, Инструкция по эксплуатации

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6. Maintenance
● Battery replacement
If lighting is dim or sounding is too low, or if the
equipment does not operate, replace the battery by
a new one.
a.
Use a screwdriver to unscrew the screw on back
cover then slide the cover, take out the batteries
and replace with new batteries type(button-cell
LR44 1.5V).
b. Place back cover and secure bay screw.
● Clearing and storage
a. Avoid heavy blows and placing heavy weights
on the machine. Avoid dropping the machine.
b. Please clean the machine after use. Wipe the
machine gently with soft cloth and mild detergent
to avoid using volatile solvents.
c. Keep the surface of the machine clean and
store the machine in dry places. Avoid exposing
the machine to direct sunlight. Avoid placing the
machine in hot, dry, and enclosed indoor areas
with insufficient ventilation.
d. Perform Insulation Testing every six months to
ensure the machine is safe to use.