If The Analyzer Fails The Operator's Check - HP 8711C User Manual

Getting Started
First, repeat the operator's check using a different cable and load to eliminate
these as a possible cause of failure.
If your analyzer does not meet the criteria in the operator's check, your
analyzer may need adjustment or servicing. Have a qualified service
technician check the instrument or contact any Hewlett-Packard Sales or
Service Office for assistance. Refer to Table 10-l in Chapter 10 for the nearest
office.
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