...the wrist unit battery needs to be changed?

We recommend that all service should be done by an authorized Polar Service Center. The 2-year International Guarantee does not cover damage or consequential damage caused by service not authorized by Polar Electro. The Polar Service Center will test your wrist unit for water resistance after battery replacement and makes a full periodic check of your complete Polar heart rate monitor.

...the buttons do not react?

Reset the wrist unit. Resetting clears the date and time settings.

Press all buttons except the Light button at the same time until the display is filled with digits. Press OK. For further information, see the section Basic Settings on page 10. If you have already set the Basic Settings once, you can skip them after setting the date by pressing and holding the Back button. If you do not press any button after you reset the wrist unit, within one minute the wrist unit goes to the Time of Day display.

If this does not work, have the batteries checked.

...the Updated OwnZone limits vary a lot?

Heart rate variability reacts sensitively to all changes taking place in your body and environment. The OwnZone heart rate limits are affected by, amongst other things, your state of fitness, the time of day of the OwnZone determination, the type of exercise and your state of mind. The lower limit of the OwnZone can vary for the same person by 5-10 beats but as much as 30 beats is possible. However it is important that the exercise carried out in the OwnZone feels light or moderate. For example, if you raise your heart rate too rapidly after the first stage, you may receive OwnZone heart rate limits that are too high. If the OwnZone limits seem to be too high, we recommend that the OwnZone determination be repeated.

10. TECHNICAL SPECIFICATION

The Polar F6 heart rate monitor is designed to

TRANSMITTER

 

• to help users to achieve their personal fitness goals

Battery life:

Average 2500 hours of use

• to indicate the level of physiological strain and intensity during

Battery type:

Built-in Lithium Cell

an exercise session

 

Operating temperature:

14 °F to 122 °F/-10 °C to +50 °C

No other use is intended or implied.

Transmitter material:

Polyurethane

WRIST UNIT

 

Waterproof

 

 

ELASTIC STRAP

 

Battery type:

CR 2032

 

Battery life:

Average 1.5 years

Buckle material:

Polyurethane

 

(1 h/day, 7 days/week exercise)

Fabric material:

Nylon, polyester, and natural rubber

Operating temperature:

14 °F to 122 °F/ -10 °C to +50 °C

 

including a small amount of latex

Water resistance:

to 100 feet/30 meters

LIMIT VALUES

 

Wrist strap material:

Polyurethane

 

Back cover and

 

Chronometer

23 h 59 min 59 s

wrist strap buckle:

Stainless steel complying with

Heart rate limits

30 - 199 bpm

 

the EU Directive 94/27/EU and

Total time

0 - 9999 h 59 min 59 s

 

amendment 1999/C 205/05 on

Total calories

0 - 999999 kcal

 

the release of nickel from products

Total exercise count

65 535

 

intended to come into direct and

Birthday

1921 - 2020

 

prolonged contact with the skin.

 

 

Watch accuracy:

better than ± 0.5 seconds/day

 

 

Accuracy of heart rate

at 77 °F/ 25 °C temperature.

 

 

 

 

 

measurement:

± 1% or ± 1 bpm, whichever larger,

 

 

 

definition applies to steady state

 

 

 

conditions

 

 

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Polar F6TM user manual Technical Specification, Wrist unit battery needs to be changed?