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 92.
If you wish to replace the battery yourself, you can purchase the service documentation that provides
all necessary test and maintenance information.
After replacing the analyzer battery, write the date of battery replacement on the rear-panel label.
Figure 1-1 Rear-Panel Battery Information Label
You can order the service documentation for Agilent spectrum analyzers through your Agilent Sales
and Service office. The documentation is described under “Options and Accessories” on page 65.
NOTE If the analyzer’s clock does not work, the problem is the battery. See “Returning an
Analyzer for Service” on page 92.
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.