4 Keysight 34950A User’s Guide
Additional Safety Notices
The following general safety precautions must be observed during all phases of 
operation of this instrument. Failure to comply with these precautions or with 
specific warnings or instructions elsewhere in this manual violates safety 
standards of design, manufacture, and intended use of the instrument. Keysight 
Technologies assumes no liability of the customer’s failure to comply with the 
requirements.
General
Do not use this products in any manner not specified by the manufacturer. The 
protective features of this product may be impaired if it is used in a manner not 
specified in the operation instructions. 
Before Applying Power
Verify that all safety precautions are taken. Make all connections to the unit before 
applying power.
Ground the Instrument
This product is provided with protective earth terminals. To minimize shock 
hazard, the instrument must be connected to the ac power mains through a 
grounded power cable, with the ground wire firmly connected to an electrical 
ground (safety ground) at the power outlet. Any interruption of the protective 
(grounding) conductor or disconnection of the protective earth terminal will cause 
a potential shock hazard that could result in personal injury. 
Do Not Operate in an Explosive Atmosphere
Do not operate the instrument in the presence of flammable gases or fumes.