4.1 Performing a zero offset via ANT+
For best performance, you should allow the powermeter
to adjust to the ambient riding temperature before
performing a zero offset and starting your ride. Allowing
your powermeter to reach ambient temperatures
normally takes a few minutes.
To perform a zero offset on your powermeter using your
ANT+ display unit, follow these steps:
1. Unclip and dismount from your bike
2. Spin the crank arms four times to wake your
powermeter
3. Place your crank arms in the 12 and 6 o’clock
positions
4. Use your display unit to calibrate your powermeter
i. Go to the Sensors menu
ii. Select the ANT+ ID of your powermeter
from the list of available sensors
iii. Choose Calibrate
Quick Tip: Some display units uses the term “calibration”
rather than “zero offset”.
4
PERFORMING A ZERO OFFSET
Single-sided mode:
A two digit response
will appear on your
display unit. Refer to
Zero Offset Table on
Page 16
Dual-sided mode:
A four digit number
will appear on your
display unit. The
first two digits refer
to the zero offset
response of the
non-drive side of
PRECISION PRO and
the last two digits
refer the zero offset
response of the
drive side. Refer to
Zero Offset Table on
Page 16
15
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