Keysight Technologies 3458A Guide D'utilisation page 56

2 Getting Started
Pressing the shifted front panel Reset key performs the power-on sequence
CAUTION
which has the same effect as cycling the multimeter's power. This destroys
any stored reading and compressed subprograms, sets the power-on SRQ
bit in the status register (these functions are discussed later in this manual),
resets the A/D converter reference frequency and performs the power-on
self test. Executing the RESET command from the alphabetic command
menu (MENU keys) returns the multimeter to the power-on state but does
not perform the power-on sequence. The MENU keys are discussed later in
this chapter.
56 Keysight 3458A User's Guide