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... 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.
Precautions
... 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
START/STOP/OK button twice.
The Polar Heart Rate Monitor enters the Time of day
display.
Usually the first sign of a discharged battery is fading of
the digits when using the backlight. Have the batteries
checked.
Customer Care Charter
... THE BATTERY OF THE WRIST RECEIVER MUST BE
REPLACED?
We recommend having all service done by an authorised
Polar Service Center. This is especially necessary to ensure
the warranty remains valid and is not affected by incorrect
repair procedures done by an unauthorised agent. Polar
Service will test your wrist receiver for water resistance
after battery replacement and make a full periodic check of
the complete Polar Heart Rate Monitor.
Care and maintenance/Batteries and Customer
Care Charter
Indicates coded transmission of heart rate. The inner
heart flashes to the beat of your heart.
In the Time of day mode indicates that the alarm is on.
In the measure mode indicates that the sound signal will
alarm if you are exercising outside your Target Zone.
Progress bullets in the measure mode.
In models M21 and M22 one bullet= 100 kcal energy
expenditure. In models M51 and M52 one bullet= 15
minutes in target zone.
AGE: Insert your age in User settings.
ALARM: Indicates the alarm clock in watch settings.
AM/PM: 12 hour mode of time
AVERAGE Hr: Average heart rate of the exercise.
Electrodes: The grooved areas of the transmitter, against
the skin. Pick up the heart’s electrical impulses.
EXERCISE: Heart rate measurement mode, stopwatch is on
and the exercise information is recorded.
EXE.TIME: Total exercise time
FAT: Indicates the fat percentage of the total calorie
expenditure.
FILE: File mode to recall training information
Heart rate: The number of heart beats per minute (bpm)
Heart rate variability: Fluctuations of interbeat intervals.
Heart rate variability of a healthy subject is in general large
in resting conditions and during light exercise. Heart rate
variability gradually disappears when exercise becomes
more intense and heart rate increases.
HRmax: Maximum heart rate
IN ZONE: Exercising time in Target Zone
KCAL: Indicates the energy expenditure of your exercise
session.
LIMITS: Manually set target zone limits are determined as
percentages of age predicted or measured maximum heart
POLAR GLOSSARY
M52 man GBR/D 5/1/01, 9:1152-53