Crivit 1-LD3604-х - Manual (Page 11)

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The heart rate is not shown or is shown incorrectly
Make sure the chest belt is positioned correctly and fits well
Your skin should not be too dry or too cold
The contact areas can be slightly moistened to improve function
Electromagnetic interference may have an adverse effect on reception
The distance between watch and chest belt must be under 60cm
Other heart rate measuring devices within a 2m range may also cause
interference
Wireless bicycle computers may cause interference
The batteries may be low and require replacing
The display is unreadable / the light does not work
Replace the batteries
Replacing the watch battery
The battery replacement can be performed by a watch maker in addition to a
water resistance test. To replace the battery yourself, please read the following
instructions first:
Remove the screws (1, 2, 3 and 4) from the back side of the watch with a small
Phillips screwdriver. Remove the caseback and the battery sticker. Use a small, flat
tool to open the latch (5) of the battery holder. Remove the battery and insert a
fresh 3V CR2032 battery with the (+) terminal facing upwards. Ensure that the
gasket (6) is seated correctly. Close the latch of the battery holder. Replace the
battery sticker and the caseback and replace the screws.
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Battery low indicator
If the battery voltage on the chest belt battery drops below the voltage required for
normal operation, "TXGURT/TXBELT" and "LO BAT/BATT" will appear on the
display. Replace the battery of the chest belt as described in the chapter "Chest
belt".
Water resistance
Water resistant up to 3 bar. The bar value specifies the atmospheric overpressure
which is applied during testing (DIN 8310).
Water resistance of the chest belt
Water resistance according to IEC 60529 IPx7: 30m
Cleaning instructions
Clean the heart rate monitor with a soft, dry and lint-free cloth. A glasses cleaning
cloth is ideal.
After each use, clean the chest belt and the watch strap with a sponge and
lukewarm mild soap water. Dry all parts with a towel and hang the chest belt to
dry. Sweat and contaminants are detrimental to the function of the sensor.