• In commercial institutions, the accident prevention regulations of the relevant
professional insurance association for electrical systems and operating materials
are to be observed.
• In schools, training centres, computer and self-help workshops, handling of
measuring instruments must be supervised by trained personnel in a responsible
manner.
• Do not switch the measuring instrument on immediately after it has been taken
from a cold to a warm environment. The condensation water generated could
destroy the device. Allow the device to reach room temperature before switching
it on.
• Wear suitable ear protection in loud environments. Excessive sound levels may
damage your ears.
• Consult an expert when in doubt about the operation, safety or connection of the
appliance.
• Maintenance, modications and repairs are to be performed exclusively by an
expert or at a qualied shop.
• If you have questions which remain unanswered by these operating instructions,
contact our technical support service or other technical personnel.
b) Batteries
• Correct polarity must be observed while inserting the (rechargeable) battery.
• A (rechargeable) battery should be removed from the device if it is not used for
a long period of time to avoid damage through leaking. Leaking or damaged
(rechargeable) batteries might cause acid burns when in contact with skin,
therefore use suitable protective gloves to handle corrupted (rechargeable)
batteries.
• (Rechargeable) batteries must be kept out of reach of children. Do not leave
(rechargeable) batteries lying around, as there is risk that children or pets could
swallow them.
• (Rechargeable) batteries must not be dismantled, short-circuited or thrown into
re. Never recharge non-rechargeable batteries. There is a risk of explosion!
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