RIGOL 
User’s Guide for DSA800/E Series 
Safety Requirement 
 
General Safety Summary 
 
Please review the following safety precautions carefully before putting the 
instrument into operation so as to avoid any personal injury or damage to the 
instrument and any product connected to it. To prevent potential hazards, please 
follow the instructions specified in this manual to use the instrument properly. 
 
Use Proper Power Cord.
 
Only the exclusive power cord designed for the instrument and authorized for use 
within the 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, connect the earth terminal of the power cord to the 
Protective Earth terminal before connecting any input or output terminals. 
 
Connect the Probe Correctly.
 
If a probe is used, the probe ground lead must be connected to earth ground. Do 
not connect the ground lead to high voltage. Improper way of connection could 
result in dangerous voltages being present on the connectors, controls or other 
surfaces of the oscilloscope and probes, which will cause potential hazards for 
operators. 
 
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 the 
instrument. 
 
Use Proper Overvoltage Protection.
 
Ensure that no overvoltage (such as that caused by a bolt of lightning) can reach 
the product. Otherwise, the operator might be exposed to the danger of an electric 
shock.