VEVOR RM-65 Bedienungsanleitung Seite 12

11.Screen Lock
Press the " " and the " " simultaneously to lock or unlock the screen.
When the screen is locked, if the current interface is not in the
measurement interface, it will automatically jump to the measurement
interface.
8.Precautions
1.When the instrument indicates low battery power, please charge it in
time to ensure the normal monitoring of the measuring equipment.
2.Avoid large vibrations of the instrument as much as possible to
prevent affecting the detection accuracy.
3.Due to the randomness of radon gas alpha decay, when measuring
low-concentration radon, the count value may exhibit an uneven
distribution phenomenon, or there may be slight differences in
measurement results between different devices. This is a normal
phenomenon and not an inaccuracy of the instrument.
4.After measuring high-concentration radon gas, residual radon and
radon daughters will be adsorbed inside the equipment. Depending on
the degree of radon pollution, it takes 24 hours to a maximum of 3.8
days for complete decay. Therefore, after measuring high-concentra-
tion radon gas, it is recommended to wait 24-48 hours before obtaining
effective measurement data every time the measurement location is
changed.
9.Q&A
1.The screen doesn't show data and the value shows "--". What does it
mean?
Answer: The minimum test time for the first data appearance is 6 hours.
Please continue to wait.
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