Polar Electro 3890048 User manual

POLAR POWER OUTPUT SENSOR - INST
ALLA
POLAR POWER OUTPUT SENSOR - INSTALLAPOLAR POWER OUTPUT SENSOR - INST
TION GUIDE
POLAR POWER OUTPUT SENSOR - INST
ALLA
POLAR POWER OUTPUT SENSOR - INSTALLAPOLAR POWER OUTPUT SENSOR - INST
TION GUIDE
Installation of Polar Power
Output Sensor
•
The Polar Power Output sensor is
compatible with the Polar S725
™
/
S720i
™
/ S710i
™
/ S710
™
and S625X
™
products and with bikes with a rear
derailleur
. It is designed especially
for road cycling but it is also suit-
able for most mountain bike types.
However
, the wires can not take
strong external stress.
•
The wireless speed sensor supplied
with the S725
™
/ S720i
™
/ S710i
™
/
S710
™
, as well as the optional
wireless cadence sensor
, should be
removed from the bike if the Power
Output Sensor is installed.
2 / 14

POLAR POWER OUTPUT SENSOR - INST
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POLAR POWER OUTPUT SENSOR - INSTALLAPOLAR POWER OUTPUT SENSOR - INST
TION GUIDE
Step one: preliminaries
•
Clean bike and chain! Otherwise
things will get very messy!
•
For most accurate readings, all set-
tings must be as accurate as pos-
sible! Don’t accept rough estimates.
Be precise!
•
Use a bike stand
•
Use the right tools!
• 10mm spanner
• Allen keys
• Chain breaker
• Scissors (for cutting cable ties)
• Measuring tape
• Rubber gloves (if needed)
3 / 14
POLAR POWER OUTPUT SENSOR - INST
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POLAR POWER OUTPUT SENSOR - INSTALLAPOLAR POWER OUTPUT SENSOR - INST
TION GUIDE
4 / 15
Getting started
•
Accuracy is of extreme importance,
a person who intends to determine
training intensity using W
atts is go-
ing to be a very informed cyclist and
probably very precise!
•
Measure the rear chain stay length
in mm
(1)
1
1
1

POLAR POWER OUTPUT SENSOR - INST
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POLAR POWER OUTPUT SENSOR - INSTALLAPOLAR POWER OUTPUT SENSOR - INST
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5 / 15
Chain facts!
•
If you know the factory default weight and length of the chain, set those values in the wrist unit.
The weight of lubricant, dirt, etc. on the chain is insigni
cant – use of the standard factory
The weight of lubricant, dirt, etc. on the chain is insigni cant – use of the standard factory The weight of lubricant, dirt, etc. on the chain is insigni
default chain weight is suf
cient.
default chain weight is suf cient.default chain weight is suf
•
Note that there is no need to re-enter chain length & weight if links are removed. The system uses
chain density (weight/length). Removing links from the chain does not affect density
.
•
Be precise! If you do not know the factory default weight, take the chain off and measure it!
•
It is easiest to install power sensor when changing chains.
•
Make sure the chain is not too long or short!
•
Remember that chain length is modi
ed according to frame size.
Remember that chain length is modi ed according to frame size.Remember that chain length is modi
•
Not all chains use the same opening / closing method. Some chains require specialized tools for
installation! Make sure a quali
ed mechanic does the job!
installation! Make sure a quali ed mechanic does the job!installation! Make sure a quali
•
Note that the chain length and weight are directly proportionate to power value. If they have,
for example, 1% error
, then the Power V
alue will also have this 1% error
.
POLAR POWER OUTPUT SENSOR - INST
ALLA
POLAR POWER OUTPUT SENSOR - INSTALLAPOLAR POWER OUTPUT SENSOR - INST
TION GUIDE

Measure the wheel diameter in mm

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
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POLAR POWER OUTPUT SENSOR - INST
ALLA
POLAR POWER OUTPUT SENSOR - INSTALLAPOLAR POWER OUTPUT SENSOR - INST
TION GUIDE


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

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

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



POLAR POWER OUTPUT SENSOR - INST
ALLA
POLAR POWER OUTPUT SENSOR - INSTALLAPOLAR POWER OUTPUT SENSOR - INST
TION GUIDE
Check that the Power Sensor
is

at and level
 at and level
•
Place rubber pads under the power
sensor to protect frame and to make
sure that the power sensor is

at
and level.
•
The power sensor should be installed
so that when the chain is in the small
front chain ring and in the small rear
cog, the sensor will be as close as
possible (5-10 mm / 0.2”- 0.4”) to
the chain without touching it when
the chain is under tension
(4)
•
If the power sensor is not spaced
correctly
, power numbers will be
inaccurate & inconsistent when
using the big chain ring.
8 / 14
4

POLAR POWER OUTPUT SENSOR - INST
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POLAR POWER OUTPUT SENSOR - INSTALLAPOLAR POWER OUTPUT SENSOR - INST
TION GUIDE

Installing the chain speed sensor

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
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


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
POLAR POWER OUTPUT SENSOR - INST
ALLA
POLAR POWER OUTPUT SENSOR - INSTALLAPOLAR POWER OUTPUT SENSOR - INST
TION GUIDE

Check all gears!





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










POLAR POWER OUTPUT SENSOR - INST
ALLA
POLAR POWER OUTPUT SENSOR - INSTALLAPOLAR POWER OUTPUT SENSOR - INST
TION GUIDE

Installation of the wheel speed sensor























POLAR POWER OUTPUT SENSOR - INST
ALLA
POLAR POWER OUTPUT SENSOR - INSTALLAPOLAR POWER OUTPUT SENSOR - INST
TION GUIDE














POLAR POWER OUTPUT SENSOR - INST
ALLA
POLAR POWER OUTPUT SENSOR - INSTALLAPOLAR POWER OUTPUT SENSOR - INST
TION GUIDE

Installing the bike mount











POLAR POWER OUTPUT SENSOR - INST
ALLA
POLAR POWER OUTPUT SENSOR - INSTALLAPOLAR POWER OUTPUT SENSOR - INST
TION GUIDE

Battery replacement













POLAR POWER OUTPUT SENSOR - INST
ALLA
POLAR POWER OUTPUT SENSOR - INSTALLAPOLAR POWER OUTPUT SENSOR - INST
TION GUIDE

Lastly


































