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Using the Brief
Performance Checks
Procedures
Using the
Performance Tests
Procedures
General Instructions
This Performance Verification section is divided into
two
subsections, Brief
Performance Checks
and Performance
Tests.
The Brief Performance Checks section contains procedures to verify the
operation of the
TAS
475 and
TAS
485 Analog Oscilloscopes.
The Performance
Tests
section contains procedures
to
confirm the
performance of the
TAS
475 and
TAS
485 Oscilloscopes to its warranted
specifications.
The
Brief Performance Checks contain three procedures: Power-On Self
Tests, Functional Tests, and Temperature Compensation Calibrations. Com-
pleting these checks takes approximately one hour.
The
Self
Tests
are performed each time the oscilloscope
in
powered on.
The
Functional
Tests
use the probe compensation output on the front panel
as
a test-signal source for further verifying that the oscilloscope functions
properly. A standard-accessory probe, included with this oscilloscope, is the
only equipment required.
To
rapidly confirm that this oscilloscope functions and was adjusted proper-
ly,
perform the procedures
in
the Functional
Tests
section; which begin on
page 4-3.
Advantages: These procedures are quick to do, require no
external equip-
ment or
signal sources, and provide high confidence that the oscilloscope
will
perform properly. These also provide hands-on experience to become
familiar with the controls and menus.
The
Temperature Compensation Calibrations allow you to adjust the display
accuracy of the oscilloscope.
The Performance
Tests
confirm that the
TAS
475 and
TAS
485 Oscilloscopes
perform
as
specified. The Performance
Tests
begin on page 4-13. Complet-
ing these tests takes approximately two hours and requires suitable test
equipment.
(See Equipment Required on page 4-13.)
Advantages: These procedures add direct checking of warranted specifica-
tions.
TAS 475 and TAS 485 Service Manual
4-1
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