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In Interval Mode
To use the Interval Timer, Interval mode must have been
selected in the setup procedure (see “Setting
Stopwatch/Lap/Interval Timers”).
Note: (Interval Timer and stopwatch operation are linked.)
To operate the Interval Timer, the heart rate function must
be activated (with a long press of the Mode button in any
main screen).
The interval timer is used to control interval training, by
coordinating an alternating sequence of up to 20 exercise
phases and 20 recovery phases. Each exercise phase lasts
for a preset duration, and is governed by a countdown
timer. Each recovery phase lasts either for a preset dura-
tion, or until a preset recovery heart rate is attained. (To
program the exercise and recovery sessions, see “Setting
Stopwatch/Lap/Interval Timers.”)
1.( ) Advance to the Timer main screen using the
Mode button. The “TMR” icon and time remaining in the
first exercise phase of the first interval will be displayed in
the upper row of the display. If the heart rate function is
activated, the lower row of the display will show the num-
ber of the current interval for three seconds, before revert-
ing to current heart rate information. If the heart rate
function is not activated, the number of the current inter-
val will remain displayed.
2. Beginning the first interval session requires two presses
of the Start/Lap button. (Note: These presses can be made
from any main screen.) (Note: These presses can be made
from any main screen.) The first press will activate the
stopwatch. “STW” will flash in all main screens except the
Stopwatch main screen, where it will remain steady.
3. The second press of the Start/Lap button will begin the
exercise phase of the first interval. This press can be made
from any main screen. If this press is made from any
screen other than the Timer main screen, the HR600 will
automatically advance to the Timer main screen, and the
running countdown timer will appear in the upper row of
the display.
4. The beginning of each exercise phase is signaled with
one alarm beep. As each exercise phase begins, the time
remaining for that phase will begin to count down in the
upper row of the display, and the number of the current
interval will be displayed briefly in the lower row of the
display.
5. Timed Recovery: The beginning of each recovery phase
is signaled with two alarm beeps, and “RCY” will flash at
the top of the display. As each recovery phase begins, the
upper row of the display will show a countdown timer that
indicates time remaining in current recovery phase. (To
select timed or heart rate-governed recovery, see step 12
of “Setting Stopwatch/Lap/Interval Timers.”)
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