HP 4284A - Page 334

9
General Information
Introduction
This chapter describes specications, supplemental performance
characteristics, storage/repackaging, and other general information
about the HP 4284A.
Components not
Covered by
Warranty
The memory card is not covered under the HP 4284A's warranty.If
the memory card becomes defectiveeven within the warranty perio d
of the HP 4284A, the memory card must b e paid for by the user.
Serial Number
Hewlett-Packard uses a two-section, nine character serial number
which is stamp ed on the serial numb er plate (Figure 9-1) attached
to the instrument's rear panel. The rst four digits and a letter are
the serial number prex, and the last ve digits are the sux. The
letter placed b etween the two sections identies the country where
the instrumentwas manufactured. The prex is the same for all
identical instruments; it changes only when a change is made to the
instrument. The sux, however, is assigned sequentially and is
dierent for each instrument. The contents of this manual apply to
instruments with the serial number prex(es) listed under the serial
numbers on the title page.
Figure 9-1. Serial Number Plate
An instrument manufactured after the printing of this manual
mayhave a serial number prex that is not listed on the title
page. This unlisted serial number prex indicates the instrument
is dierent from those describ ed in this manual. The manual for
this new instrumentmay b e accompanied byayellow Manual
General Information 9-1