Vision Fitness SIMPLE Owner's Manual page 42

TROUBLESHOOTING YOUR HEART RATE MONITOR CHEST STRAP
PROBLEM: No pulse reading appears.
SOLUTION: There may be a poor connection between the contact pads
and skin; remoisten the electrode pads.
SOLUTION: Transmitter is not properly positioned; reposition the chest strap.
SOLUTION: Verify that the distance between the transmitter and receiver
is not beyond the recommended range of 36 inches.
PROBLEM: There is an erratic pulse rate.
SOLUTION: Chest strap is too loose; readjust according to directions.
NOTE:
It is possible that heart rate monitors will not function properly
on some people for a variety of reasons. It may be necessary to
experiment with the fit and position of the chest strap. Outside interference
sources such as computers, motors, electric dog fences, home security
systems, remote controls, CD players, fluorescent lights, etc., may cause
problems for heart rate monitors.
WARNING
Heart rate monitoring systems may be inaccurate. Over exercise may
result in serous injury or death. If you feel faint stop exercising immediately.
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