Agilent Technologies E4419B User Manual page 169

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The softkey menu structured to this key affects the channel setup.
Press this key to access the "Zero/Cal" menu which allows you to zero and
calibrate the power meter. Refer to
for further information.
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E4419B Power Meter User's Guide
press any key. While operating with AC power connected, these keys are
grayed out and the backlight is permanently on. On instrument, preset the
Backlight is set to "On"
Backlight On
Press this softkey to turn the display backlight permanently On.
Backlight Off
Press this softkey to set the display backlight to be Off while the power
meter is operating under battery power.
Backlight Timed
Press this softkey to select the Backlight Timed mode. When the power
meter is in this mode and is operating under battery power, the display
backlight turns off 10 minutes after the last key press. To turn the backlight
back on, press any key.
Done
Pressing this softkey returns the display to the previous screen.
Zero A
Press this softkey to adjust channel A for a zero power reading with no
power applied to the power sensor. Refer to
Power Meter" on page 30 for further information.
Zero B
Press this softkey to adjust channel B's internal circuitry for a zero power
reading with no power applied to the power sensor. Refer to
Calibrating the Power Meter"
"Calibrating the Power Meter"
"Zeroing and Calibrating the
on page 30 for further information.
Menu Reference 3
on page 31
"Zeroing and
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