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Chapter 8
Troubleshooting
Q1. Display is black or very light:
The battery power may be low. Try a new battery to make sure the battery is
installed correctly.
Q2. Display becomes dark or black:
The unit is too hot. Place the unit in a shaded area, and it will return to normal.
Q3. The unit operates slowly or struggled:
The unit is too cold. Warm the unit, and it will return to normal.
Q4. Date in display varies enormously:
Check your surroundings for electro magnetic or high energy interference and
move away from the source of interference.
Q5. Data in display shows slowly:
The unit may be affected by low temperature factor but it didn't influence the
function reading. When the temperature rises, the data reading/ witch will back
to the normal.
Q6. Current speed does not appear
It may be caused by the following situation: the distance & position between
magnet and sensor to adjust or low battery power.
15
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