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Power Meter Operation
2
E4419B Power Meter User’s Guide
27
Charging Times
The battery charges automatically when the power meter is connected to an
AC source. From an empty state, the battery is fully charged in less than two
hours. After approximately 50 minutes, the battery has enough charge to
enable one hour of operation with the backlight on. After approximately 35
minutes, the battery has enough charge to enable 1 hour of operation with the
backlight off.
Backlight
When you are operating the power meter under battery power, you can turn
the display backlight off or on or set it to timed mode. In timed mode, the
display backlight turns off 10 minutes after the last key is pressed. The display
can be turned on again by pressing any key.
Working with the backlight off reduces the drain on the battery and increases
the operating time available by approximately 50%. The display can be
comfortably read in ambient daylight with the backlight off.
To access the backlight menu, press
,
,
,
. Use the
softkeys on the menu to select either
,
, or
.
More Service Battery
On Off
Timed
N O T E
If the power meter is connected to an AC power source, the backlight menu is greyed out
and the backlight is permanently on.
Summary of Contents for E4419B
Page 1: ...Agilent Technologies Agilent E4419B Power Meter User s Guide ...
Page 14: ...xiv E4419B Power Meter User s Guide ...
Page 22: ...xxii E4419B Power Meter User s Guide ...
Page 117: ...Power Meter Operation 2 E4419B Power Meter User s Guide 95 Figure 2 22 Save Recall Screen ...
Page 136: ...2 Power Meter Operation 114 E4419B Power Meter User s Guide ...
Page 174: ...3 Menu Reference 152 E4419B Power Meter User s Guide ...
Page 184: ...4 Error Messages 162 E4419B Power Meter User s Guide ...