Assistance with test and measurements needs and information on finding a local Keysight office are available on the Web at: https://www.keysight.com/find/assist/.
If you do not have access to the Internet, please contact your Keysight field engineer.
In any correspondence or telephone conversation, refer to the Keysight product by its model number and full serial number. With this information, the Keysight representative can determine whether your product is still within its warranty period.
To contact Keysight for sales and technical support, refer to support links on the following Keysight websites: http://www.keysight.com/find/support (product specific information and support, software and documentation updates) https://www.keysight.com/find/assist/ (worldwide contact information for repair and service).