General Tools and Instruments TI872 - Manual (Page 5)

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2. Use the HR, MIN and SEC buttons to enter the
desired countdown duration. Press the MEMORY
button to save this setting. The word MEMORY will
appear on the display.
3. Press the START/STOP button to begin the
countdown. The beeper will sound. Press the
START/STOP button again to pause the
countdown. The beeper will sound again. Press the
START/STOP button again to resume the
countdown. This will cause the beeper to sound
again. To clear (zero out) the count, press the
CLEAR button while the count is paused.
4. The alarm will sound when the countdown reaches
0:00:00. For TIMER 1, the alarm is a sequence of
four beeps. For TIMER 2, the alarm is a sequence
of two beeps. When the alarm sounds, the flashing
notification TIME’S UP will appear in the upper
right corner of the display and a new timer will
begin counting up from 0:00:00 to indicate how
much time has elapsed since the alarm sounded.
To cancel the alarm, press the START/STOP
button. The display will reset to 0:00:00.
5. To use either timer to time the same period again,
move the function switch to the TIMER 1 or
TIMER 2 position and press the MEMORY button.