Safety Precautions 1-3 
1.4  Safety Precautions 
Please observe the following precautions to ensure patient and operator’s safety when using this 
system. 
Do not operate this system and probes in an atmosphere containing 
flammable gasses or liquids such as anesthetic gasses, hydrogen, 
and ethanol, because there is danger of explosion. 
 
Do connect the power plug of this system to wall receptacles that 
meet the ratings indicated on the rating nameplate. If adapters or 
multifunctional receptacles are used, it may cause the leakage 
current to exceed the safety requirement. 
In the environment that patient is 1.5 meters around, connect 
peripherals to the auxiliary power outlet which is capable of 
isolation protection, or power the peripherals by auxiliary output 
cable or isolation transformer complied with IEC 60601-1-2:2014 or 
the power input of the same safety level. 
DO NOT use power supply of different phases to power 
peripherals, like power supply of air-conditioning. 
When using peripherals not powered by the auxiliary output of 
the ultrasound system, or using peripherals other than permitted 
by Mindray, make sure the overall leakage current of peripherals 
and the ultrasound system meets the requirement of the local 
medical device electrical regulation (like enclosure leakage 
current should be no more than 500uA of IEC 60601-1-2:2014), 
and the responsibility is held by the user. 
Connect the grounding conductor before turning ON the system. 
Disconnect the grounding cable after turning OFF the system. 
Otherwise, electric shock may result. 
For the connection of power and grounding, follow the appropriate 
procedures described in this operator’s manual. Otherwise, there is 
risk of electric shock. Do not connect the grounding cable to a gas 
pipe or water pipe; otherwise, improper grounding may result or a 
gas explosion may occur. 
Before cleaning the system, disconnect the power cord from the 
outlet. Otherwise, system failure and electric shock may result. 
This system is not water-proof. Do not use this system in any place 
where water leakage may occur. If any water is sprayed on or into 
the system, electric shock may result. If water is accidentally 
sprayed on or into the system, contact Mindray Customer Service 
Department or sales representative. 
DO NOT use a probe that has a damaged, scratched surface, or 
exposed wiring of any kind. Immediately stop using the probe and 
contact Mindray Customer Service Department or sales 
representative. There is risk of electric shock if using a damaged or 
scratched probe.