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• Do not press the speaker hole using something with a pointed tip. Doing so will
damage an internal waterproof sheet, resulting in a degraded waterproof
property.
• If there is a crack or deformation in the rubber packing for the battery cover or
external interface hatch, stop using and replace the packing.
• To retain the waterproof property, it is recommended that you replace the rubber
packing once every two years. To replace the packing, contact your local dealer.
The Lithium Battery
• The lithium battery is used to maintain the CX Calendar & Clock function. It can
back up data for approximately 5 years of normal use and storage (Temperature
= 20°, humidity = about 50%), but its lifetime may be shorter depending on
circumstances.
Vertical and horizontal clamps
• Always fully release the vertical/horizontal clamps when rotating the instrument
or telescope. Rotating with clamp(s) partially applied may adversely affect
accuracy.
Carrying case
• When using the carrying strap, be sure to attach
the both hooks to the attachment holes on the
carrying case.
Backing up data
• Data should be backed up (transfered to an external device etc.) on a regular
basis to prevent data loss.
Other precautions
• Close the external interface hatch before starting measurement. Otherwise,
ambient light entering the USB port may adversely affect measurement results.
• If the CX is moved from a warm place to an extremely cold place, internal parts
may contract and make the keys difficult to operate. This is caused by cold air
trapped inside the hermetically sealed casing. If the keys do not depress, open
the battery cover to resume normal functionality. To prevent the keys from
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2. PRECAUTIONS
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