Sonel MIC-2501 Operating Manual page 25

The entire contents of the memory has been deleted.
or
OPERATING MANUAL MIC-2501 version 1.04
... the bank number will
change into "--", then
symbol
played to indicate the
readiness for deleting
the whole memory.
Press ENTER button.
bols appear, asking
you to confirm dele-
tion.
Press ENTER again.
After deleting the memory, the meter
beeps three times.
will be dis-
and sym-
23