Safety Requirement 
 
General Safety Summary 
 
Please  review  the  following  safety  precautions  carefully  before  putting  the 
instrument into operation so as to avoid any personal injuries or damages to the 
instrument and any product connected to it. To prevent potential hazards, please 
use the instrument only specified by this manual. 
 
Use Proper Power Cord. 
Only the power cord designed for the instrument and authorized by local country 
could be used. 
 
Ground The Instrument. 
The instrument is grounded through the Protective Earth lead of the power cord. 
To avoid electric shock, it is essential to connect the earth terminal of power cord 
to the Protective Earth terminal before any inputs or outputs. 
 
Observe All Terminal Ratings. 
To avoid fire or shock hazard, observe all ratings and markers on the instrument 
and check your manual for more information about ratings before connecting. 
 
Use Proper Overvoltage Protection. 
Make sure that no overvoltage (such as that caused by a thunderstorm) can reach 
the product, or else the operator might expose to danger of electrical shock. 
 
Change The Power Fuse. 
If the power fuse needs to be changed, please return the instrument back to our 
factory and the RIGOL authorized operator will change it for you. 
 
Do Not Operate Without Covers. 
Do not operate the instrument with covers or panels removed. 
 
Avoid Circuit or Wire Exposure. 
Do not touch exposed junctions and components when the unit is powered.