Keysight N9010A EXA Service Guide 45OverviewContacting Keysight TechnologiesInstrument Serial NumbersKeysight makes frequent improvements to its products enhancingperformance, usability, or reliability. Keysight service personnel have access tocomplete records of design changes to each type of instrument, based on theinstrument’s serial number and option designation.Whenever you contact Keysight about your instrument, have the completeserial number available. This will ensure that you obtain accurate serviceinformation.A serial number label is attached to the rear of the instrument. This label hastwo instrument identification entries: the first provides the identificationnumber for each option built into the instrument and the second provides theinstrument’s serial number.The serial number has two parts: the prefix (two letters and the first fournumbers), and the suffix (the last four numbers). Refer to the following figure.Figure 1-2 Example Serial NumberThe first two letters of the prefix identify the country in which the unit wasmanufactured. The remaining four numbers of the prefix identify the date of thelast major design change incorporated in your instrument. The four digit suffixis a sequential number and, coupled with the prefix, provides a uniqueidentification for each unit produced. Whenever you list the serial number orrefer to it in obtaining information about your instrument, be sure to use thecomplete number, including the full prefix and the suffix.The serial number is located on the rear panel serial sticker or when theanalyzer is power up, press System, Show, System. The system informationcan be very useful for updates and post-sale upgrades.
