I 79
...other person with heart rate monitor is causing interference?
Keep a distance from your training partner and continue your training
session normally.
Or
1. Take the transmitter off your chest for 30 seconds. Keep a distance from
your training partner.
2. Put the transmitter back and bring the receiver up to your chest near
the transmitter’s Polar logo. The receiver starts looking for a heart rate
signal again. Continue your training session normally.
...heart rate reading becomes erratic or extremely high?
You may have come within range of strong electromagnetic signals which
cause erratic readings. Check your surroundings and move further away
from the source of disturbance.
...the display is blank or fading?
If the display is blank, activate the wrist receiver by pressing the OK button
twice, after which the Time of Day display appears. The first sign of a
discharged battery is the battery symbol on the display. Also the digits fade
when the backlight is used. Have the batteries checked.
PPP S410S210 man USAGBR A.pm6 12.3.2003, 08:3179