OPTO-EDU A18.1828-LCD, Инструкция по эксплуатации

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Fig. 7
11.Power source: All electric parts are built into the base of instrument. If there is
some wrong with the instrument , firstly check the fuse at the back of base. Any
further examination or repair which might become necessary should be entrusted to
our factory or other special department.
Ⅴ. Maintenances
 The instrument must be kept in shade ,cool and dry place ,free of dust ,acid ,alkali
and vapor. As soon as work is finished , the dustcover should be put on it.
 The instrument must be kept clean. The dust of optical surface can be blown by a
balloon or should be cleaned off with a soft hair brush, the dirty can be wiped off
gently with lens tissue moistened with xylene.
 The instrument should not be disassembled by the user .Any examination or
repair which might become necessary should be entrusted to our factory or other
special department.