Polar Electro POLAR M91ti User Manual page 27

decreasing your heart rate.
8. For a small percentage of people the heart rate
variability will not totally disappear with increasing
workload. In this case the age-predicted limits are the
best estimation for the exercising zone.
...THE OWNZONE LIMITS BASED ON HEART RATE
VARIABILITY (OZ.V) VARY CONSIDERABLY?
Heart rate variability reacts sensitively to all changes taking
place in the body and environment. The OZ.V heart rate
limits are affected by, amongst others, your daily state of
fitness, the time of OwnZone determination, the type of
exercise and state of mind. The lower limit of the OZ.V
heart rate limits can change for the same person by as
much as 30 beats.
However it is important that the feeling of exercise carried
out in the OwnZone is light or moderate. For example if
you raise your heart rate too rapidly after the first stage,
you may get too high OwnZone heart rate limits. If the
OwnZone limits seem to be too high we recommend that
the OwnZone determination is done again.
... THERE IS NO HEART RATE READING (- -)?
1. Check that the electrodes of the transmitter are
moistened and that you are wearing it as instructed.
2. Check that you have kept the transmitter clean.
3. Check that there are no sources of electromagnetic
radiation in the close vicinity of the Polar wrist receiver,
such as TV sets, mobile phones, CRT monitors etc.
4. Have you had a cardiac event which may have altered
your EKG waveform? In this case consult your physician.
...HEART SYMBOL FLASHES IRREGULARLY?
1. Check that your Polar wrist receiver is inside the
transmission range and not further that 3 feet/ 1 metre
from the Polar transmitter you are wearing.
2. Check that the elastic strap has not become loose during
exercise.
3. Make sure that the electrodes of the transmitter are
moistened.
4. Make sure that there is no other heart rate transmitter
50
man M91ti USA A 50-51
within the reception range (3 feet/ 1 metre).
5. Cardiac arrythmia may cause irregular readings. In this
case consult your physician.
...OTHER PERSON WITH HEART RATE MONITOR IS
CAUSING INTERFERENCE?
Your training partner may have coincidentally activated
exactly the same code as you. In this case keep distance to
your training partner or proceed as follows:
1. Stop the stopwatch and heart rate measurement.
2. Take the transmitter off your chest for 10 seconds.
3. Put the transmitter back and start the heart rate
measurement again.
... HEART RATE READING BECOMES ERRATIC OR
EXTREMELY HIGH?
You may have come within range of strong
electromagnetic signals which cause erratic readings on the
wrist receiver display. Check your surroundings and move
further away from the source of disturbance.
... THERE ARE NO REACTIONS TO ANY BUTTONS?
Reset the Polar heart rate monitor. Resetting clears watch
settings which will return to the default settings. User
information and measurement options settings will be
saved.
1. Press the RESET button with a pen tip.
Display becomes full of digits.
2. Press any of the four button once.
The Polar heart rate monitor enters the Time of day
display.
If you don't press any button after reset within one minute
the wrist receiver goes to the battery saving mode.
... THE DISPLAY IS BLANK OR FADING?
The Polar heart rate monitor is in battery saving mode
when it leaves the factory. Wake up by pressing the OK
button twice.
The Polar heart rate monitor enters the Time of day
display.
13/11/00, 12:02
51