User Manual
40
8 Using the Powermeter
Using your power2max powermeter is as easy as installation and start-up.
All you need is an ANT+ capable bike computer that supports the power profile.
Examples include:
O-SYNCE navi2coach, Macro X and Macro High X
CYCLEOPS: Joule 2.0 and 3.0
GARMIN: Edge 500/510/800/810, Forerunner 310XT/910XT
BONTRAGER: Node 1 and Node 2
SUUNTO: Ambit2
An up-to-date list of compatible products can be found on the website of the ANT+
Alliance:
http://www.thisisant.com/directory/power2max-road-rotor-3d-plus-bcd-110-or-130/
Your power2max powermeter transmits power, cadence and left-right-balance using the ANT+ sport
protocol („power only sensor“).
8.1 Before a ride
When your bike is not in use and not being moved, the
power2max
powermeter is in power-save
mode. Your
power2max
powermeter is activated by moving the cranks. It now starts measuring
power automatically and emitting the ANT+ signal. Your
power2max
powermeter signals this
with a single flash of the green LED.
8.2 During a ride
The
power2max
powermeter updates power, cadence and left-right-balance data at 1 second
intervals and transmits these data by ANT+ radio protocol.
8.3 Zeroing and temperature compensation
Your power2max powermeter ensures precise measurement of data using two separate me-
chanisms: zeroing and temperature compensation. Your power2max powermeter automati-
cally determines the zero value, i.e. the value that is measured when no torque is applied to
the powermeter. This compensates for the influence of temperature changes and mechanical
factors affecting the zero.
Manual setting of zero through your bike computer is possible but not necessary. Every time the
system is unloaded for 2 or more seconds your power2max powermeter sets a new zero value.
In practice this means that every time you are coasting for 2 or more seconds your power2max
powermeter sets a new zero.
In rare cases where an automatic zero is not possible, such as during long hill climbs without
coasting, your power2max powermeter compensates automatically for temperature changes