3-8 Service Guide N5227-90001
Tests and Adjustments PNA Series Microwave Network Analyzers
ANSI/NCSL Z540.3–2006 and ISO/IEC 17025 Verification N5227A
ANSI/NCSL Z540.3–2006 and ISO/IEC 17025 Verification
To meet the criteria for ANSI/NCSL Z540.03-2006 and ISO/IEC 17025 verification, perform the preliminary 
checks and all performance tests without stopping to repair or adjust
1
. Refer to Figure 3-1 for test flow. Print 
data at the completion of all the tests, even if you are aware that the analyzer did not pass. If there is a 
failure, complete the verification before you troubleshoot, repair, and adjust. After the failure has been 
corrected, repeat the entire set of performance tests and generate a new set of data.
Figure 3-1 ANSI/NCSL Z540.3–2006 and ISO/IEC 17025 Verification Flowchart
1.  Stop only in case of a catastrophic failure or cable connector damage