Fluke Biomedical 190M - Manual (Page 106)

190M Series Medical ScopeMeter
Users Manual
96
Charging the Batteries
At delivery, the Li-ion batteries may be empty and must be
charged for 5 hours (with the test tool turned off) to reach
full charge.
When battery power is used, the battery indicator at the
top of the screen informs you about the condition of the
batteries. The battery symbols are:
. The
symbol indicates that there are typically five minutes of
operating time left. See also Displaying Battery Information
on page 101.
To charge the batteries and power the instrument, connect
the power adapter as shown in Figure 46. To charge the
batteries more quickly, turn off the test tool.
W Caution
To avoid overheating of the batteries during
charging, do not exceed the allowable
ambient temperature given in the
specifications.
Note
No damage will occur if the power adapter is
connected for long periods, e.g., during the
weekend. The test tool automatically switches to
trickle charging.
Figure 46. Charging the Batteries
Alternatively, you may choose to exchange the battery
(Fluke accessory BP290 or BP291) with a fully charged
one, and use the external battery charger EBC290
(optional Fluke accessory).