Do Not Operate With Suspected Failures. 
If you suspect damage occurs to the instrument, have it inspected by qualified 
service personnel before further operations. Any maintenance, adjustment or 
replacement especially to circuits or accessories must be performed by RIGOL 
authorized personnel. 
 
Keep Well Ventilation. 
Inadequate ventilation may cause increasing of temperature or damages to the 
device. So please keep well ventilated and inspect the intake and fan regularly. 
 
Do Not Operate In Wet Conditions. 
In order to  avoid short  circuiting to the  interior of the device or electric shock, 
please do not operate in a humid environment. 
 
Do Not Operate in an Explosive Atmosphere. 
In order to  avoid  damages to the device or personal injuries,  it is important to 
operate the device away from an explosive atmosphere. 
 
Keep Product Surfaces Clean and Dry. 
To avoid the influence of dust and/or moisture in air, please keep the surface of 
device clean and dry. 
 
Electrostatic Prevention. 
Operate  in  an  electrostatic  discharge  protective  area  environment  to  avoid 
damages  induced  by  static  discharges.  Always  ground  both  the  internal  and 
external conductors of the cable to release static before connecting. 
 
Handling Safety 
Please handle with care during transportation to avoid damages to buttons, knob 
interfaces and other parts on the panels.