User manual

Fluke 190 Series II

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 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 47. 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.

Note

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.

Figure 47. 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).