Chapter 1 13
Installation and Setup
Power Requirements
Battery Information
The analyzer uses a lithium battery to enable the internal memory to retain data. The date when the
battery was installed is on a label on the rear panel of the analyzer.
See Figure 1-1.
The minimum life expectancy of the battery is 7 years at 25 °C, or 1 year at 55 °C. If you experience
problems with the battery or the recommended time period for battery replacement has elapsed, see
“Returning an Analyzer for Service” on page 82.
If you wish to replace the battery yourself, you can purchase the service documentation that provides all
necessary test and maintenance information.
You can order the service documentation for an Agilent ESA spectrum analyzer through your Agilent
Sales and Service office. The documentation is described under “Options” on page 67.
After replacing the analyzer battery, write the date of battery replacement on the rear-panel label.
Figure 1-1. Rear-Panel Battery Information Label
NOTE If the analyzer’s clock does not work, the problem is the battery. See “Returning an
Analyzer for Service” on page 82.
WARNING Danger of explosion if battery is incorrectly replaced. Replace only with the same or
equivalent type recommended. Discard used batteries according to the
manufacturer’s instructions.
WARNING The Agilent Technologies E4402B, E4403B, E4404B, E4405B, E4407B, E4408B,
E4411B, E7402A, E7405A may be used with an E1779B Rechargeable Battery Pack
which contains a Ni-Cd battery. The battery must be recycled or disposed of
properly.
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