Timex M640 Heart Rate Monitor User Manual


 
The Zone Trainer bar allows you to graphically view where your heart is
in relation to the low and high ends of your selected target heart rate
zone.A left arrow (
) will blink if you go below the target heart rate
zone and a right arrow (
) will blink if you go above the target heart
rate zone.
See the Watch picture on page 14 for another view of the Zone Trainer
bar.
Chrono Mode Example
17
Chrono Mode Tips & Tricks
Press MODE to switch to Time of Day Mode while running the
chronograph.The stopwatch icon (
W) will appear to indicate the
chronograph is still operating.
When you operate the Watch in Chrono Mode with the Digital Heart
Rate Sensor, you will accumulate heart-related data in Review Mode,
including:
1) Amount of time your heart rate stays within your target heart rate
zone;
2) Average, peak, and minimum heart rates;
3) Total calories burned;
4) Latest recovery heart rate; and
5) Average heart rate for each recorded lap or split.
With the chronograph running along with the Digital Heart Rate Sensor,
you can change the Chrono Mode display by pressing HEART RATE.
Choose from:
1) Lap or Split #/Lap or Split Time;
2) Zone Trainer bar/Heart Rate;
3) Zone Trainer bar/Lap or Split Time;
4) Heart Rate/Lap or Split Time;
5) Lap or Split Time/Heart Rate; or
6) Heart Rate only.
16
Recently you heard that the run/walk method can help you increase your
overall endurance and burn more calories. This method calls for running
for a period of time followed by a short period of walking. You decide to
use Chrono Mode to help you try this method. You press START/SPLIT to
begin your run and then after 10 minutes of running you press
START/SPLIT again and walk for 2 minutes. You continue using these two
timing sequences until you have completed a 60 minute run/walk.