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7. Potential causes for no heart reading or long response time
1. Cause: Dry skin.
Solution: Apply conductive gel, saliva or water on the chest.
2. Cause: Chest strap is not tight enough.
Solution: Ensure that the Chest Strap is firmly placed over the chest.
3. Cause: Chest strap is fastened too tightly on the chest causing muscle tremor.
Solution: Loosen the chest strap but still keeping it firm.
4. Cause: The back sensor cannot identify the heartbeats due to a thin layer of body
fat that isolates the ECG-signa
l.
Solution: Wipe the chest and the back of the chest strap with a clean tissue.
5. Hairy chest
:
Solution: Shave or apply conductive gel to chest.
6. Cause: Low battery.
Solution: The battery of the chest strap might be low and need to be replaced.
8. Important information
Watch
We advise you to see a professional watchmaker when the battery needs to be changed.
Do not open the watch yourself.
Chest Strap
You can change the battery of the chest strap by the follo-
wing instructions:
1. Turn the cover with a coin counter clockwise so that the
arrow on the cover turns from Dot to Arrow.
2. Turn the cover further gently until it pops out.
3. Put aside the battery cover.
4. Remove the exhausted battery.
5. Replace the battery with a new battery, lithium type
CR2032, with the (-) side of the battery against the
metal contact.
6. Important: Make sure the sealing rubber o-ring is placed
correctly in its slot before the battery cover is closed.
7. Put the battery cover back with the arrow on the cover
points to Arrow, and then press the cover down gently