1-6. To maintain the performance of the instrument
● When you wash the platform cover, use clean water and then carefully wipe off moisture with a clean dry
cloth.
If you use sea water, unclean water, or contaminated water, the instrument may break down.
● Use soft cloth when wiping stains off the whole instrument. Do not use a scrubber, brush, or other tools.
● To clean the instrument using neutral detergent, (1) moisten a sponge with neutral detergent, (2) wipe
stains off the instrument with the sponge, (3) wash the instrument with clean water, and then (4) carefully
wipe off moisture with a clean dry cloth.
● To disinfect the whole instrument using alcohol, (1) moisten a cloth with a solution of up to 80% alcohol
concentration, (2) wipe stains off the instrument with the cloth, (3) wash the instrument with clean water,
and then (4) carefully wipe off moisture with a clean dry cloth. Wash the display panel with clean water.
● Never disassemble or modify the instrument. Otherwise, it may deteriorate the water-proof performance of
the instrument.
Be sure to contact your vendor if, by any chance, you have disassembled the instrument by mistake.
● Do not drop the instrument. Do not allow the instrument to hit against hard objects such as a table.
● Do not open the battery cover at a place exposed to a large amount of sand, dust, or dirt.
Any foreign matter adhered to the gasket may affect its water-proof performance.
● Do not push the display panel, operation keys, or rubber area with your fingernail or a pointed object.
● After replacing the dry batteries, firmly close the cover.
● After use, store the instrument in a dry place with a small change in temperature.
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