Instrument Serial Numbers - Keysight N1913B EPM Series Service Manual

Instrument Serial Numbers

Keysight Technologies makes frequent improvements to its products to enhance
their performance, usability, and reliability. Keysight Technologies service
personnel have access to complete records of design changes for each
instrument. The information is based on the serial number and option designation
of each power meter.
Whenever you contact Keysight Technologies about your power meter have a
complete serial number available. This ensures you obtain the most complete and
accurate service information. The serial number can be obtained by:
The serial number label is attached to the rear of each Keysight Technologies
instrument. This label has two instrument identification entries. The first provides
the instruments serial number and the second provides the identification number
for each option built into the instrument.
The serial number is divided into two parts: the prefix (two letters and the first four
numbers), and the suffix (the last four numbers). The prefix letters indicate the
country of manufacture. This code is based on the ISO international country code
standard, and is used to designate the specific country of manufacture for the
individual product. The same product number could be manufactured in two
different countries. In this case the individual product serial numbers would reflect
different country of manufacture codes. The prefix also consists of four numbers.
This is a code identifying the date of the last major design change.
The suffix indicates an alpha numeric code which is used to ensure unique
identification of each product throughout Keysight Technologies.
Keysight N1913B/N1914B EPM Series Power Meters Service Guide
– Querying the power meter over a remote interface (via the
– From the front panel (via the Service menu)
– From the serial number label
Contacting Keysight Technologies 7
*IDN? command)
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