User's Guide

13
12
Zeroing
Pairing
paIrIng
Before pairing your power meter to a computer, make sure you are at least 10 meters (30 feet) from any
other ANT+™ device. This will keep you from accidentally pairing to another person’s ANT+ device.
To pair the Quarq with an ANT+ computer, rst spin the crank backwards 2-3 times to wake the power meter
and begin broadcasting ANT+ messages. The power meter will shut off after about 10 minutes of inactivity.
Follow the pairing instructions specic to your ANT+ computer.
garMIn® edge 800
To pair the power meter:
Click the Power button → tap the Dumbbell icon
→ Rescan
“Power Meter Detected” will ash up on your screen when the units are paired.
garMIn edge 500
To pair the power meter:
Menu → Settings → Bike Settings → Bike 1 → ANT+Power → Rescan
“Power Meter Detected” will ash up on your screen when the units are paired.
garMIn Forerunner 310Xt WatCh
Your watch must be in bike mode in order to pair and zero your power meter (press and hold the Mode
button).
To pair the power meter:
Mode → Bike Settings → Bike 1 → Ant+Power → Restart Scan
“Power Meter Detected” will appear on your screen when the units are paired.
ZeroIng
The power meter must be zeroed to compensate for environmental changes. The power meter can be
zeroed two ways: Auto Zero and Manual Zero.
When to perform the Zero procedure
For best results, you should perform the Manual Zero procedure before you start each ride. The Auto
Zero procedure can be performed instead of a Manual Zero or if your computer cannot send a “Calibrate”
command; if the temperature changes greatly during your ride; or if you feel that you are getting inaccurate
data.
Manual Zero
We recommend that the Manual Zero procedure be performed with the rider off of the bike.
The power meter may be zeroed manually by sending the “Calibrate” command from an ANT+™
compatible bike computer. The power meter will return the Zero Offset value (or “Current Calibration” on
some computers) to the computer; however, not all ANT+ computers will display the value. The Zero Offset
is typically between +/- 500. Some units will always have a Zero Offset value outside of this range without
any impact on performance. What is more important is that the pre- and post-ride Zero Offset values are
within 50 points of each other. If the pre- and post-ride Zero Offset values frequently vary by more than 50,
or if day-to-day values vary widely, please call Quarq customer service.
When performing the Manual Zero procedure, put the drive side crank arm in the 6 o’clock position,
keeping the cranks stationary with no force on the pedals. Follow the pairing instructions specic to your
ANT+ computer to send the “Calibrate” command.
The LED will ash one time when zeroing is complete.
garMIn® edge 800
Click the Power button → tap the Dumbbell icon
→ Calibrate
garMIn edge 500
Menu → Settings → Bike Settings → Bike 1 → ANT+Power → Calibrate
garMIn Forerunner 310Xt WatCh
Mode → Bike Settings → Bike 1 → Ant+Power → Calibrate
Auto Zero
Spin the crank backwards for 4-5 complete revolutions.
The LED will long-blink one time when zeroing
is complete. The computer will not display the Zero Offset value. The Auto Zero procedure may be
performed while coasting with the rider on the bike, stopped using one or both feet, or by hand with the
rider off of the bike.