Sector Marathon Timer Manual De Instrucciones página 42

TROUBLE
Irregular heart rate signal is
detected.
POSSIBLE CAUSE
(1) The distance between the
watch and the chest belt is at
the marginal range of reception
distance.
(2) The orientation of the watch is
not favor to signal to pick up.
(3) Heart rate signal is jammed
by other strong electromagnetic
signal.
REMEDY
(1) Adjust the distance between
the watch and the chest belt.
(2) Adjust the orientation of
the watch to improve the
reception strength.
(3) Move away the watch from
the electromagnetic signal
generated sources such as
TV, PC monitor or car engine.