CME UF 50, User Manual, Page: 5 / 54

5
PRECAUTIONS
IMPORTANT
Always follow the basic precautions listed below to avoid the possibility of serious injury
or even death from electrical shock, damages, fire or other hazards. These precautions
include, but are not limited to, the follows:
1. Read and understand all the instructions.
2. Always follow the instructions on the instrument.
3. Before cleaning the instrument, always remove the electric plug from the outlet as
well as the USB cable. When cleaning, use a soft and dry cloth. Do not use gasoline,
alcohol, acetone, turps or any other organic solutions; do not use liquid cleaner, spray
cleaner or too wet cloth.
4. Do not use the instrument near water or moisture, such as bathtub, washbasin,
washing poor in the kitchen or similar places.
5. Do not place the instrument in an unstable position where it might accidentally fall
over.
6. Do not jam sinks or holes of the instrument; those sinks of holes are used for air
circulation to prevent the instrument from overheating. Do not place the instrument
near heat sink or any places with poor air circulation.
7. Do not place anything on the power cord. Make sure the power cord is set on a safe
place, so nobody will step on it and no body will trip over it.
8. Do not overload the outlet and the AC cable to avoid fire or electrical shock.
9. Do not insert anything in the instrument, which may cause fire or electrical shock. Do
not splash any kind of liquid to the instrument.
10. Do not disassemble the instrument in case of accidental electrical shock.
11. Always take the instrument to a qualified service center in need of repair. You will
cause yourself in danger if you open or remove the cover, and improper assembly
may cause electrical shock in the future use.
12. Unplug all the connectors and take the instrument to a qualified service center if
anything in the below listed happens:
A. The power cord or connector get hurt or worn out.
B. Any liquid get in the instrument.
C. The instrument gets rain or water splash.
D. The instrument does not work properly after following all the instructions
regarding to the trouble shootings.
E. The instrument falls down or gets broken.
F. The instrument functions poorly.
13. Do not use the instrument when thundering; otherwise the thundering may cause
long-distance electrical shock.
14. Do not use the instrument when there is a gas leak nearby.
15. Switch off the product when inside or near aircraft. The use of RF product in aircraft is
illegal. It may be dangerous to the operation of the aircraft
16. Do not use the product on the ground without the permission of the ground crew in
the airport.
17. Observe ‘Turn off the RF communication device such as Mobile Phone’ signs, such
as those near stores of fuel, chemicals or explosives
18. The operation of some medical electronic devices, such as hearing aids and
pacemakers, may be affected if the product is used next to them. Observe any
warning signs and manufacturer's recommendations.
19. Please do not use the product near any precision instrument, which may cause noise
or abnormal operation to the instrument.
20. Switch off the product at a refueling point, such as a petrol station, even if you are not
refueling your own car.
21. Do not store or carry flammable or explosive materials in the same compartment
where a radio transmitter, such as the product, is placed.
22. Electronic vehicle systems, such as anti-lock brakes, speed control and fuel injection