Serial Numbers - HP 85091A Reference Manual

Serial Numbers

A serial number label, similar to the one shown in
attached to the calibration kit. The serial number uses the form
US3444 1234.
• The first six digits form the serial number prefix (the first two digits
• The last four digits form the suffix (a simple counting sequence).
Figure 1-1 Typical ECal Kit Serial Number Label
In addition to the kit serial number, the calibration modules in each kit
are individually serialized. For your convenience, the following table
has been created for you to record these serial numbers. Recording the
serial numbers helps maintain the integrity of your kit. Kit integrity is
an important part of compliance with U.S. MIL-STD-45662A.
Microwave modules with serial numbers below 800 will need to be
retrofitted for operation with the new ECal system. The retrofitting
must be done by a qualified HP service office. Refer to
Support" on page 1-9
Table 1-4
Model Number
Chapter 1
are a country code, the next four are a year/week designation).
of this manual for contact information.
ECal Kit and Individual Component Serial
Numbers
General Information
Serial Numbers
Figure 1-1, is
"Service and
Serial Number
1-7