1
 
Use the product only as specified by the manufacturer. 
Do not install substitute parts or perform any 
unauthorized modification to the product. Return the 
product to Agilent Technologies or a designated repair 
center for service to ensure that safety features are 
maintained. 
The Agilent U1600B Series handheld digital 
oscilloscopes comply with the following standards.
•  IEC 61010-1:2001 / EN61010-1:2001
•  Canada: CSA C22.2 No. 61010-1:2004
•  USA: UL 61010-1:2004
Safety Terms and Symbols
A WARNING notice denotes a hazard. It calls 
attention to an operating procedure, practice, or the 
like that, if not correctly performed or adhered to, 
could result in personal injury or death. Do not 
proceed beyond a WARNING notice until the 
indicated conditions are fully understood and met.
A CAUTION notice denotes a hazard. It calls attention 
to operating procedure, practice, or the like that, if not 
correctly performed or adhered to, could result in 
damage to the product or loss of important data. Do not 
proceed beyond a CAUTION notice until the indicated 
conditions are fully understood and met.
Symbols
Safety Information 
WARNING
CAUTION
Earth Ground Terminal
Risk of electric shock
CAUTION
(refer to safety information in manual)
Equipotentiality
Direct and alternating current
Direct current
Double insulation
Caution, hot surface
CAT III
Measurement Category III