Precor EFX534i Product Owners Manual page 53

Heart Rate Target Zones
200
190
180
170
160
150
140
130
120
110
100
90
80
70
20 25 30 35 40 45 50 55 60 65 70 75
Your Age
Figure 1: Heart rate target zones
The calculation used for the heart rate target zone is:
(220 minus your age) multiplied by a percent.
For example:
Warmup range: (220 minus your age) multiplied by 55%
Peak range: (220 minus your age) multiplied by 85%
User's Reference Manual: Heart Rate Features
After you put on the chest strap, face the display console for a
minimum of 15 seconds. This allows the receiver in the console
to recognize the signal from the chest strap.
If Hr blinks in the HEART RATE display, it is detecting a signal,
but has not yet determined your heart rate. Make sure the chest
strap is positioned properly around your chest and against your
skin.
High
If you prefer to use the touch-sensitive grips, grasp both and
wait five to ten seconds. Make sure both hands are moist (not
dry).
When a signal is detected, a number flashes in the
Peak
HEART RATE display and indicates your heart rate.
Cardio
Fat Burn
Warmup
7