HP 10811A, Operating & Service Manual

Page: 24 / 73

Model 10811A/B
16
SECTION IV
OPERATIONAL VERIFICATION
4-1. INTRODUCTION
4-2. The tables in this section test the instrument's performance using the specifications of Table 1-1
as the performance standards. All tests can be performed without access to the interior of the
instrument.
4-3. OPERATIONAL VERIFICATION
4-4. The Operational Verification, Table 4-2 , can be performed to give a high degree of confidence
that the 10811A/B is operating properly without performing the complete performance tests. The
operational verification should be useful for incoming QA, routine maintenance, and after
instrument repair.
4-5. EQUIPMENT REQUIRED
4-6. Equipment required for the operational verification is listed in the recommended test equipment in
Section I,
Table 1-2 , and in Table 4-1 . Any equipment that satisfies the critical specifications
given in the table may be substituted for the recommended model(s).
4-7. TEST RECORD
4-8. Results of the Operational Verification,
Table
4-2 , may be tabulated on the Operational
Verification Record,
Table 4-4 .
4-9. If the 10811A/B Oscillator is to be tested outside its normal installation, a special test connector
may be used for applying power to the oscillator. The connector also has a BNC connector for the
10 MHz output signal. A photo, parts list, and construction information is located in Section VIII.
The connector should be used under the following circumstances:
a. If the 10 MHz output is not easily accessible.
b. If there is a buffer amplifier between the 10811A/B output and the oscillator output jack
on the rear panel of the instrument.
c. Troubleshooting.
d. If testing of the oscillator in its normal installation causes erroneous measurements (e.g.,
fan noise, vibrations, noisy circuits, etc.). If in doubt, use the special test connector.
4-10. Table
4-1 lists the five sections of the operational verification and their descriptions.