Hioki 3290-10, Инструкция по эксплуатации

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7.1 Cleaning
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• To clean the meter, wipe it gently with a soft cloth moistened with
water or mild detergent. Never use solvents such as benzene, alcohol,
acetone, ether, ketones, thinners or gasoline, as they can deform and
discolor the case.
• Wipe the LCD gently with a soft, dry cloth.
Maintenance and Service
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• Calibration and repair of this meter should be performed only
under the supervision of qualified technicians knowledgeable
about the dangers involved.
• If the protective functions of the meter are damaged, either
remove it from service or mark it clearly so that others do not
use it inadvertently.
To avoid corrosion from battery leakage, remove the batteries
from the meter if it is to be stored for a long time.
7.1 Cleaning
Measurements are degraded by dirt on the mating surfaces of the
clamp-on sensor, so keep the surfaces clean by gently wiping with a
soft cloth.