HP 54520 Series - Channel Selection Softkey; Vertical Sensitivity Softkey

Vertical
Channel Softkey
Channel Softkey
The top key in the vertical menu is for channel selection. This key toggles
between channels. You can use the channel softkey to select a channel or
you can use the numbered channel keys on the front pane! to select a
channel, When a channel is selected (highlighted in inverse video), you can
turn that channel on or off. When a channel is turned on, the small circle
immediately below the channel number is highlighted, and the LED is turned
on. When you turn a channel off, the channel menu automatically switches to
the lowest numbered active channel.
Because you may have a channel turned on while being in the vertical control
menu of a different active channel, make sure you that you are changing the
functions for the channel you intend to change. You can tell which channel
you are affecting by checking which number is lit directly below the volts/div
knob, or by noting which channel is in inverse video in the vertical menu.
Vertical Sensitivity Softkey
The vertical sensitivity softkey is the third softkey from the top in
the channel menu. The current volts/division is displayed with the units of
the currently selected channel. You can use the volts/div knob to change the
vertical scaling at any time, even if you are in a different menu or even when
the volts/div softkey is not the active function. However, when the
volts/div softkey is the active function, you can use the volts/div knob,
the entry knob, or the keypad to change the vertical scaling of the selected
channel.
When the probe attenuation is set to 1:1, the vertical sensitivity range is from
1 mV/division to 5 V/division, and it changes in a 1-2-5 sequence. You can use
the keypad to enter values not in the normal 1-2-5 sequence. When the Fine
key is selected, you can make fully calibrated vernier adjustments using the
entry knob. When the Show key is pressed, the current vertical sensitivity is
shown at the right of the waveform display for channels that are turned on.
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