1) Turn the power switch “OFF” and unplug the power supply plug from the
outlet.
2) Remove the battery cover on the back of the unit. (Fig. 1)
3) Remove the exhausted battery and install one new lithium battery. Wipe the
battery well with a dry cloth and place the plus “+” side upward. (Fig. 2)
4) Replace the battery cover by reversing the removal procedure.
5) Press the RESET switch on the back of the unit (See “RESETTING THE