Keysight U1253B Guía Del Usuario Y Servicios página 149

5 Maintenance
1 On the rear panel, turn the screw on the battery cover counterclockwise from
Figure 5-2
2 Slide the battery cover down.
3 Lift the battery cover up.
4 Replace with the specified battery.
5 Reverse the procedures of opening the cover to close it.
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the LOCK position to OPEN.
Rear panel of the Keysight U1253B True RMS OLED Multimeter
Keysight U1253B User's and Service Guide