Sokkia CX-101, Руководство по обслуживанию, Страница: 16 / 322

2. PRECAUTIONS
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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.
Backing up data
• Data should be backed up (transfered to an external device etc.) on a regular
basis to prevent data loss.
Use under low temperatures (Low Temperature Model only)
• Do not use force to scrape off frost from the lens or display unit screen. Frost is
an abrasive material and may scratch the instrument.
• If ice or snow attaches itself to the unit, wipe it off with a soft cloth, or place the
unit in a warm room until the ice melts, and then wipe off the meltwater.
Operating the unit with ice or snow attached may cause operation errors to
occur.
• Wipe off condensation with a soft cloth before using the instrument. Not doing
so may cause operation errors to occur.
• When using the instrument in low temperatures around -35°C (-31°F), we
recommend that you use an external battery (optional accessories).
Low temperature will affect the performance of the battery BDC70 (working
duration will rapidly decline for example).
However, if you unavoidably must use the battery BDC70 for measurements in
temperatures around -35°C (-31°F), recharge the battery in a warm room and
keep the battery in a warm place such as your pocket until it is used.