Quick Start 1
Keysight 34970A/34972A User’s Guide 35
3 Connect the power cord and turn on the instrument. 
The front-panel display will light up briefly while the instrument performs its 
power-on self-test. The instrument initially powers up with all measurement 
channels turned off. To review the power-on display with all annunciators 
turned on, hold down 
 as you turn on the instrument. Note that a battery 
must be installed in the unit in order for it to boot up. The battery is installed 
when you receive the unit from the factory; this is only a consideration if you 
remove the battery for some reason. If the instrument does not turn on 
properly, see page 49.
4 Perform a complete self-test. 
The complete self-test performs a more extensive set of tests than those 
performed at power-on. Hold down   as you turn on the instrument and 
hold down the key until you hear a long beep. The self-test will begin when 
you release the key following the beep. 
If the self-test fails, see the 34970A/34972A Service Guide for instructions on 
returning the instrument to Keysight for service.