Keysight U3020AS26, Руководство пользователя и сервисное руководство

Страница: 36 / 41

36 Keysight U3020A User’s and Service Guide
Connector care and cleaning precautions
Remove the power cord to the instrument. To clean the connectors use alcohol in a well ventilated
area. Allow all residual alcohol moisture to evaporate, and fumes to dissipate prior to energizing
the instrument.
WARNING
The opening of covers or removal of parts is likely to expose the user to dangerous voltages.
Disconnect the instrument from all voltage sources before opening.
WARNING
No operator serviceable parts inside. Refer servicing to qualified personnel. To prevent
electrical shock, do not remove covers.
WARNING
The detachable power cord is the instrument disconnecting device. It disconnects the mains
circuits from the mains supply before other parts of the instrument. The front panel switch is
only a standby switch and is not a LINE switch (disconnecting device).
WARNING
To prevent electrical shock, disconnect the Keysight U3020AS26 from mains electrical
supply before cleaning. Use a dry cloth or one slightly dampened with water to clean the
external case parts. Do not attempt to clean internally.
WARNING
If flammable cleaning materials are used, the material shall not be stored, or left open in the
area of the equipment. Adequate ventilation shall be assured to prevent the combustion of
fumes, or vapors.