Specifications

Operation of IS15 Combi
20220760L 25
5 minutes BEEP (3 minutes if 3-6 timer selected)
1 minute BEEP BEEP
30 seconds BEEP BEEP BEEP
5 seconds BEEP
4 seconds BEEP
3 seconds BEEP
2 seconds BEEP
1 second BEEP
BEEP BEEP BEEP BEEP → GO
To Freeze the Race Timer
The Race Timer may be frozen and restarted at any time that it is
running, before or after the start of a race, as below:
1. Apply a short press on the RESET button to freeze the Race
Timer.
2. Press the RESET button a second time to show the running
Race Timer again.
Notes !
1. If the Race Time display is frozen before the start of the race
the timer will stop counting, so that when the display is
unfrozen it carries on from the displayed time, delayed from
its original start time.
2. If the Race Time display is frozen after the start of the race
the timer itself will continue to count, so that when the
display is unfrozen the count is unaffected.
3. The Race Log is unaffected by freezing the Race Time.
To Reset the Race Timer and Race Log
The Race Timer may be stopped and reset at any time, before or
after the start of a race, as below:
1. Select the Race Time and Race Log screen.
2. Press the RESET button and hold for 2 seconds to reset the
Race Time to the previous start time and to reset the Race
Log to zero (- - -).