Initializing Parameters

Initial Setting

Restore method

Preset state

Press Preset on the front panel, one message will prompt as below and then click OK.

"Factory preset (default) DOES NOT change "Adapter", "Accessory" types and DC Output@Hold from the current setting.

User preset DOES change "Adapter", "Accessory" types and DC Output@Hold to what you saved as the "UserPres" file previously.

Check the menu under [Cal] key whether proper type is selected for your new measurements.

You can change Factory/User preset type selection, and choose to show or not to show this dialog under [System] > {Misc Setup} > {Preset Setup} menu."

or

Execute the :SYST:PRES command.

*RST state

Execute the *RST command.

Factory default setting

 E4990A factory (default) settings.