Memory Subtract:
Subtract the dis-
played value from the memory total.
Memory Recall:
Two presses in suc-
cession clears memory and shows the
total.
Clear Memory:
Clears memory with-
out clearing the display.
Timer:
Displays, starts and stops the
timer. If a value is entered prior to starting
the timer, the timer counts
down
from the
time entered.
Change Sign:
Toggles the sign of the
displayed value.
Set
–
+/–
Timer
Rcl
Set
Rcl
Rcl
M
+
Set
54 – GradeMatic 4000™