10 Appendix
62
Replacing the
battery
h Press the MENU/POWER key for more than two seconds to switch the
TDA-300(0) off.
h Undo the screw for the battery cover.
h Turn the screw with a suitable screwdriver or coin.
h Take off the battery cover.
h Remove the old battery and carefully insert a new one (LR6). Please
observe the correct polarity.
h Put the battery cover back in position and tighten up the screw.
After the battery has been replaced, the instrument will start in the RESET
state.
Digital filter is retained
Switch-off is retained
Locks Date/time can be set,
the state of the other locks is retained
Year 0
Date 01.01
Time 00:00
Parameter TDA-300 TDA-3000
Unscrew, e.g. with a coin.