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Fluke 190-104, Fluke 190-204
Users Manual
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 fully charged, the batteries provide up to 7 hours
(single channel, time base slower than 1 µs/div) of use if
the backlight is dimmed (see Chapter 6 'Adjusting the
Contrast and brightness).
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:
symbol
indicates that there are typically five minutes
of operating time left.
To charge the batteries and power the instrument, connect
the power adapter as shown in Figure 41. To charge the
batteries more quickly, turn off the test tool.
Caution
To avoid overheating of the batteries during
charging, do not exceed the allowable
ambient temperature given in the
specifications.
88
No damage will occur if the power adapter is
connected for long periods, e.g., during the
weekend. The instrument then automatically
switches to trickle charging.
. The
Alternatively, you may choose to exchange the battery
(Fluke accessory BP291) with a fully charged one, and use
the external battery charger EBC290 (optional Fluke
accessory).
Note
Figure 41. Charging the Batteries
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