User`s guide
Table Of Contents
- Legal Information
- Equipment Operation
- General Safety Considerations
- Regulatory Information
- List of Related Publications
- Agilent TechnologiesE4418B Options
- About this Guide
- Getting Started
- Power Meter Operation
- Introduction
- Battery Operation (Option 001)
- Zeroing and Calibrating the Power Meter
- Making Measurements with the AgilentE-Series Power Sensors
- Making Measurements with the Agilent8480 Series Power Sensors
- Making Measurements using Sensor Calibration Tables
- Making Measurements using Frequency Dependent Offset Tables
- Setting the Units of Measurement
- Selecting Units of Measurement from the Softkeys
- Making Relative Measurements
- Setting the Resolution
- Setting Offsets
- Setting Averaging
- Measuring Pulsed Signals
- Setting Measurement Limits
- Selecting a Digital or Analog Display
- Setting the Range
- Configuring the Remote Interface
- Recorder Output
- Saving and Recalling Power Meter Configurations
- How Measurements are Calculated
- Presetting the Power Meter
- Self Test
- Operator Maintenance
- Contacting Agilent Technologies
- Menu Reference
- Error Messages
- Specifications

Power Meter Operation
Battery Operation (Option 001)
2-4 Agilent E4418B User’s Guide
Running time can be increased by operating the power meter with the
display backlight turned off (see “Backlight”, on page 2-4 ).
Figure 2-1: Battery Status
When the power meter is running on battery power and there are less
than 10 minutes of run-time remaining, the message “Battery Low”
appears at the top of the screen. In addition, a pop up window appears
every minute with the message “Battery Power Low”.
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
2 hours. After approximately 50 minutes the battery has enough charge to
enable 1 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 press - 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.
HP4402.book Page 4 Wednesday, November 29, 2000 4:46 PM