OWON HDS1021M - Manual (Page 64)

OWON HDS1021M Handheld DSO & DMM 10-Appendix
allowed to be cleaned by soft detergent or fresh water. Do not use any abrasive chemical
detergent to avoid the instrument or the probe being damaged.
Warning: Before repowering and reuse, please confirm that the instrument has been
dried out so as to avoid electrical short circuit and personal injury caused by moisture.
10.2.2 Storage of Oscilloscope
If the test tool is to be stored for a long time, it is required to charge the lithium battery before
storage.
Charging the oscilloscope
The lithium battery is possibly not charged when delivery. To make the battery with enough
electric quantity, it must be charged for 6 hours (the test tool must be turned off during charging).
The battery can supply power for 4 hours after being charged completely.
When supplying power by using the battery, a battery indicator is displayed on the top of the
screen to show the consumption condition of electric quantity. The symbols that are possibly
appear include , , and , where shows that the battery can only be used for about 5
minutes. To charge the battery and power the instrument, connect the oscilloscope using a power
adapter according to Figure 1 to charge the battery. The charging speed can be increased by
turning off the test tool.
Notice
To avoid superheat of battery during charging, the environment temperature is not allowed to
exceed the permissible value given in technical specification.
Note:
No hazard will occur even connecting the charger for a long time, e.g. during a whole weekend.
The instrument can automatically switch to slowly charging status.
10.2.3 Replacing the Lithium Battery Unit
It is usually not required to replace the battery unit. But when it is required to replace it, only
qualified personnel can carry out this operation, and only use the same specification lithium
battery.
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