ennoLogic eA990R, Руководство пользователя

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Turn the anemometer back on and check the altitude. Its displayed
value will now be very close to 500 feet (499 feet in this example,
resolution is limited by barometric pressure resolution.)
Keep in mind that your new altitude reading is still pressure
dependent. So any changes in atmospheric pressure will change the
altitude reading. But calibrating to a true known local altitude can
still be very useful if the atmospheric pressure stays roughly the
same, and you want to use the anemometer to determine altitude
while hiking or climbing, for instance.
Battery Replacement:
This anemometer uses a rechargeable 3.7V Lithium-Polymer battery
that is built-in and is not intended to be replaced by the user. This
battery can be recharged through a Micro USB charge port at the
bottom of the unit. This port functions as a charge port only, and
cannot be used for data transfer or communication with a computer.
The battery should be recharged if the anemometer fails to power on
or if the battery icon indicates low power (see below). To charge the
battery use the included USB charging cable to connect the
anemometer to a standard 5V USB charger or a computer’s USB port.
Low Power, charge battery soon
Battery charging
Battery fully charged