3
Wait 30 seconds.
4
Insert the new battery with the positive side facing up.
NOTE:
Do not damage or lose the O-ring gasket.
5
Replace the back cover and the four screws.
NOTE:
Do not overtighten.
After you replace the heart rate monitor battery, you may need
to pair it with the device again.
Data Management
NOTE:
The device is not compatible with Windows
®
95, 98, Me,
Windows NT
®
, and Mac
®
OS 10.3 and earlier.
Disconnecting the USB Cable
If your device is connected to your computer as a removable
drive or volume, you must safely disconnect your device from
your computer to avoid data loss. If your device is connected to
your Windows computer as a portable device, it is not necessary
to safely disconnect.
1
Complete an action:
• For Windows computers, select the
Safely Remove
Hardware
icon in the system tray, and select your device.
• For Mac computers, drag the volume icon to the trash.
2
Disconnect the cable from your computer.
Deleting Files
NOTICE
If you do not know the purpose of a file, do not delete it. Your
device memory contains important system files that should not
be deleted.
1
Open the
Garmin
drive or volume.
2
If necessary, open a folder or volume.
3
Select a file.
4
Press the
Delete
key on your keyboard.
Troubleshooting
My daily step count does not appear
The daily step count is reset every night at midnight.
If dashes appear instead of your step count, allow the device
to acquire satellite signals and set the time automatically.
The temperature reading is not accurate
Your body temperature affects the temperature reading for the
internal temperature sensor. To get the most accurate
temperature reading, you should remove the watch from your
wrist and wait 20 to 30 minutes.
You can also use an optional tempe external temperature
sensor to view accurate ambient temperature readings while
wearing the watch.
Resetting Your Device
If the device stops responding, you may need to reset it.
1
Hold
LIGHT
for at least 25 seconds.
2
Hold
LIGHT
for one second to turn on the device.
Restoring All Default Settings
NOTE:
This deletes all user-entered information and activity
history.
You can restore all of the device settings to the factory default
values.
1
Hold
.
2
Select
Settings
>
System
>
Restore Defaults
>
Yes
.
Getting More Information
You can find more information about this product on the Garmin
website.
• Go to
.
• Go to
.
• Go to
, or contact your Garmin dealer
for information about optional accessories and replacement
parts.
Appendix
Data Fields
%FTP
: The current power output as a percentage of functional
threshold power.
%HRR
: The percentage of heart rate reserve (maximum heart
rate minus resting heart rate).
10s Avg. Balance
: The 10-second moving average of the left/
right power balance.
10s Avg. Power
: The 10-second moving average of power
output.
24-Hour Max.
: The maximum temperature recorded in the last
24 hours.
24-Hour Min.
: The minimum temperature recorded in the last
24 hours.
30s Avg. Balance
: The 30-second moving average of the left/
right power balance.
30s Avg. Power
: The 30-second moving average of power
output.
3s Avg. Balance
: The three-second moving average of the left/
right power balance.
3s Avg. Power
: The 3-second moving average of power output.
Ambient Press.
: The uncalibrated ambient pressure.
Average %HRR
: The average percentage of heart rate reserve
(maximum heart rate minus resting heart rate) for the current
activity.
Average Ascent
: The average vertical distance of ascent since
the last reset.
Average Cadence
: Cycling. The average cadence for the
current activity.
Average Cadence
: Running. The average cadence for the
current activity.
Average Descent
: The average vertical distance of descent
since the last reset.
Average HR
: The average heart rate for the current activity.
Average HR %Max.
: The average percentage of maximum
heart rate for the current activity.
Average Pace
: The average pace for the current activity.
Average Power
: The average power output for the current
activity.
Average Speed
: The average speed for the current activity.
Average SWOLF
: The average swolf score for the current
activity. Your swolf score is the sum of the time for one length
plus the number of strokes for that length (
). In open water swimming, 25 meters is used to
calculate your swolf score.
Avg. Balance
: The average left/right power balance for the
current activity.
Avg. GCT
: The average amount of ground contact time for the
current activity.
Avg. Lap Time
: The average lap time for the current activity.
Avg. Strk/Len
: The average number of strokes per length
during the current activity.
Appendix
19
