2 Front-Panel Operation
60 Keysight 34420A Service Guide
To Select an Input Channel
For voltage measurements, you have two independent input channels.
–Pressing toggles the display between Channel 1 and Channel 2.
– Pressing (Scan) creates an alternating Channel 1 and Channel 2
display. Press again to cancel.
Scan mode alternates between input channels every 3 seconds or every
measurement, whichever is longer. If you are using the scan mode, turn off all
the input filters (both digital and analog).
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