Power Meter Operation
Battery Operation (Option 001)
Agilent E4419B User’s Guide 2-3
Battery Operation (Option 001)
The battery option (001) allows the power meter to be used in operating
environments where there is no convenient access to an ac power source.
General Information
With the battery option installed and the power meter connected to an ac
power source, the meter operates from the ac source and the battery runs
in a controlled charge mode.
If the meter is powered up under battery power, or if ac power is lost while
connected to an ac source, a pop up window displays the message
“Running Under Battery Power”. When this screen is visible the backlight
mode (see “Backlight”, on page 2-4) is over-ridden and the backlight is on
continuously. Pressing the softkey returns the display to the
previous screen.
Carry Case
A soft carry/operating case is available which makes it easy to transport
and operate your power meter in installation and maintenance
environments. To obtain a carry case order Agilent part number 34141A.
Caution Do not attempt to recharge the power meter or operate the power
meter from an ac power source while it is contained in the carry
case.
Running Time
A fully charged battery will typically allow the power meter to be used
continuously for up to 3 hours with the backlight off and 2 hours with the
backlight on.
Battery Status
You can check the status of the battery by pressing , ,
, , . The Battery Status display (Figure 2-1 )
shows the charge condition of the battery represented on an analog meter
scale. Below the analog scale is a message indicating the estimated power
meter running time under battery operation with the present charge level.
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HP4402.book Page 3 Thursday, November 30, 2000 1:39 PM
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