Maintenance; Safe-Keeping; To Prevent Malfunction - Citizen CH-617 Instruction Manual

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.MAINTENANCE:

Use a piece of cloth with water or mild cleansing agent to
clean the case and then use a piece of dry cloth to wipe it dry.
Do not use gas or any strong cleansers in cleaning.
When the unit is not to be used for a long time, remove the
batteries. (Leaking of battery liquid can cause trouble)
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.SAFE-KEEPING:

Always keep the unit in the carrying case after its use.
Do not put the item directly under the sunlight, in high
temperature, or humid and dusty places.
Do not store in extremely low (less than - 20 °C) or high(more
than 70 °C) temperature.
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.TO PREVENT MALFUNCTION:

Do not in any way twist the wrist cuff.
Do not start the air pressure when the wrist cuff is not
wrapped around the wrist.
Do not attempt to disassemble or change any parts of the
monitor including wrist cuff.
Do not drop the product or put it through strong impact.
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