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2. PRECAUTIONS
Charging Battery
• Be sure to charge the battery within the charging temperature range.
Charging temperature range: 10 to 40°C
• Use only the specified battery and the battery charger. Failures caused by using other batteries and battery
chargers are out of warranty including the main unit.
Warranty policy for Battery
• Battery is an expendable item. The decline in retained capacity depending on the repeated charging/
discharging cycle is out of warranty.
Vibration and Impact Protection
• When transporting the instrument, provide protection to minimize risk of severe vibration or impact. Severe
vibration or impacts may affect beam accuracy.
Sudden changes of temperature
• A sudden change in temperature may cause water condensation on the glass used for the laser emission
part. In such a case, let the instrument stand for a while to allow it to adjust to the temperature prior to actual
use.
Storage precautions
• When storing the instrument, keep it in a place not exposed to direct sunlight and at the temperature range
from -30
to 60°C.
• Do not store the wet instrument in the carrying case. If any part of the instrument is wet, thoroughly wipe off
with soft cloth and leave it dry before storing in the carrying case.
Precautions concerning water and dust resistance
The instrument conforms to IP66 specifications for waterproofing and dust resistance.
• Close the battery holder securely.
• Make sure that moisture or dust particles do not come in contact with the terminal or connectors.
Operating the instrument with moisture or dust on the terminal or connectors may cause damage to the
instrument.
• Make sure that the inside of the carrying case and the instrument are dry before closing the case. If moisture
is trapped inside the case, it may cause the instrument to rust.
• If there is a crack or deformation in the rubber packing for the battery holder, 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.
Other precautions
• Protect the instrument from heavy shocks or vibration.
• Remove batteries before storing when the instrument will not be used for periods on 1 month or more.
Batteries may leak fluid when left inside the instrument causing malfunction.
• In addition to the laser beam emitted from the rotating laser, the level sensor may be sensitive to smartphone
screens, LED lamps, fluorescent lamps, constriction lamps, and other modulated lights. In this case, turn off
these modulated lights that may be the cause, or block them before performing measurement.
• If an object (glass window, car windshield, etc.) that may reflect a laser beam is close to this instrument, the
level sensor may malfunction. When using this instrument, block the laser beam to the direction of a reflective
object.
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