E-17
Power Supply
The Data Collector has both a main power supply (two AA (LR6)-size alkaline
batteries or a lithium-ion battery pack) and a backup power supply (lithium battery).
In this manual, the words "main battery" refer to both alkaline batteries and the
lithium-ion battery pack.
Low main battery power is indicated when the low voltage message appears on the LCD
screen. Replace the main battery or charge the battery pack as soon as possible after the
low voltage message appears.
[Warning]
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Note Down Valuable Data
• Never remove both the main battery and backup battery at the same
time. Doing so causes all program settings and data in Data Collector
memory to be lost or changed. Data cannot be recovered once it is lost
or corrupted. Be sure to make back-up copies of all important data.
One way to do this is to use the optional Basic Cradle or Satellite
Cradle to transfer data to a computer.
Important!
• Never remove the main battery from the Data Collector while the power
is turned ON. Doing so can cause data in Data Collector memory to be
lost. Before you remove the battery, be sure to turn the Data Collector
OFF.
• Use only AA (LR6)-size alkaline batteries or the specified lithium-ion
battery pack specified for the DT-900.
• The lithium-ion battery pack discharges naturally during the time it
takes to get to you from the factory. Be sure to charge the battery pack
before you use it for the first time.
• Never allow the terminals of the lithium-ion battery to become shorted.
Doing so creates the danger of malfunction. Be sure to keep the
battery pack in its special case when transporting or storing it.
• Repeat charging of the lithium-ion battery pack gradually shortens its
ability to recharge. If you find that a fully charged battery pack
provides only little operation time, it probably means you need a new
battery pack.
• Whenever you do not plan to use the Data Collector for a long time,
load two new alkaline batteries or a fully charged battery pack into the
Data Collector to protect against power failure during non-use. Also,
load new batteries or a fully charged battery pack before using the
Data Collector after a long period of non-use.
• If the battery pack has been left over unused for a long period of time,
the capacity remained decreases due to spontaneous discharge or
chemical decomposition by the battery pack itself. If the battery pack
fails to hold its operating duration after it has been fully charged,
replace it with a new one. The battery pack may reach the end of its
service life.