Polar FT40 Heart Rate Monitor User Manual


 
Troubleshooting
If you don't know where you are in the menu,
press and hold BACK until the time is
displayed.
If there are no reactions to any buttons or
the wrist unit displays unusual readings,
reset the wrist unit by pressing four buttons
(UP, DOWN, BACK and LIGHT) simultaneously
for four seconds. All other settings except time
and date will be saved.
If the heart rate reading becomes erratic,
extremely high or shows nil (00), make sure
that there are no other heart rate transmitters
within 1 m/3 ft and that the transmitter
strap/the textile electrodes fit snugly and are
moistened, clean and undamaged.
If the heart rate measurement does not work
with the sports apparel, try using the strap. If it
works, the problem is most probably in the
apparel. Please contact the apparel
retailer/manufacturer.
Strong electromagnetic signals can cause erratic
readings. Electromagnetic disturbances may
occur near high-voltage power lines, traffic
lights, overhead lines of electric railways,
electric bus lines or trams, televisions, car
motors, bike computers, some motor driven
training equipment, cellular phones, or at
electric security gates. To avoid erratic
readings, move away from possible sources of
disturbance.
If the abnormal reading continues despite
moving away from the source of disturbance,
slow down and check your pulse manually. If
you feel it corresponds to the high reading on
the display, you may be experiencing cardiac
arrhythmia. Most cases of arrhythmia are not
serious, but consult your doctor nevertheless.
A cardiac event may have altered your ECG
waveform. In this case, consult your physician.
If heart rate measurement does not work despite
the actions mentioned previously, the battery of
your transmitter may be empty.
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