2-2   General Information 
Safety Symbols
 
 
Where the following symbols or indications appear on the instrument’s front or rear 
panels, or elsewhere in this manual, they alert the user to an aspect of safety.
 
........................... CAUTION: Refer to accompanying documents (for Safety-
related information). See elsewhere in this manual wherever 
the symbol is present. 
........................... CAUTION: Risk of electric shock  
............................ On (Supply) 
[.................................... Standby (Supply) 
............................ Earth (Ground) Terminal 
 
......................  Alternating Current Only 
........................  Chassis Terminal 
............................ Earth (Ground) Terminal on BNC Connectors 
 
WARNING................. Denotes a hazard. If a WARNING is indicated on the 
instrument do not proceed until its conditions are 
understood and met.  
 
WARNING  
 
Any use of this instrument in a manner not specified by the manufacturer  
may impair the instrument’s safety protection.