System Preparation  3-3 
WARNING: 
1. 
Be sure to connect the equipotential wire before inserting the power 
plug into the receptacle; be sure to pull out the power plug from the 
receptacle before disconnecting the equipotential wire; otherwise 
electric shock may result.
 
 
2. 
When you connect another device to this system, you should use 
the equipotential wire to connect each of equipotential terminals; 
otherwise electric shock may result.
 
 
3. 
Connect the earth cable before turning ON the system. Disconnect 
the earth cable after turning OFF the system. Otherwise, electric 
shock may result.
 
 
4. 
DO NOT connect this system to outlets with the same circuit 
breakers and fuses that control the current to devices such as life-
support systems. If this system malfunctions and generates 
overcurrent, or when there is an instantaneous current at power ON, 
the circuit breakers and fuses of the building’s supply circuit may be 
tripped.
 
3.2.4  Powering on the System 
CAUTION: 
To ensure safe and effective system operation, you must perform daily 
maintenance and checks. If the system begins to function improperly – 
immediately stop scanning. If the system continues to function improperly – 
fully shut down the system and contact Mindray Customer Service Department 
or sales representative. If you use the system in a persistent improperly 
functioning state – you may harm the patient or damage the equipment. 
Checking before Power ON 
Check the system before the system is powered on: 
No.  Check Item 
1   
The temperature, relative humidity and atmospheric pressure shall meet the 
requirements of operating conditions. For details, please refer to “2.3.2 Environmental 
Conditions” 
2    There shall be no condensation. 
3   
There shall be no distortion, damage or dirt on the system and peripheral devices. 
If any dirt is found, cleaning shall be performed. 
4    There shall be loose screws on the monitor or control panel. 
5   
There shall be no cable damage (e.g. power cord). Maintaining secure connections to 
the system at all times. 
6   
The probes and probe cables shall be free of damage or stains. 
See Chapter 13 Probes and Biopsy for details of probe cleaning and disinfection. 
7   
No miscellaneous odds and ends are allowed to be attached or affixed to the control 
panel. 
8   
Ensure that all connections are free from damage and remain clear of foreign object 
blockages. 
There shall be no obstacles around the system and its air vent. 
9    Probe cleaning and disinfection. 
10    The overall scanning environment and field must be clean.