Uson sprint iq, Руководство пользователя

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62
Programming
2. Part is pressurized with positive pressure [+P] to the
desired test pressure set by the pressure regulator [R1] by
opening valves [V1] and [V2] throughout the test.
3. At the end of Test step, Sprint iQ looks for a specific
back-pressure using its pressure sensor [PS].
4. If the measured back-pressure during the Test step is
outside accept/reject setpoints entered into the test
program, the Sprint iQ’s display shows why the part
failed.
5. At the end of the test, any remaining pressure trapped in
the part is vented to atmosphere through [V1] by opening
[V2] only, and Sprint iQ is ready to make the next test.
Rejected Vs. Accepted Tests
The figure illustrates a
typical back-pressure
flow test sequence in
which the part under test
fails the evaluation. The
part in this example fails
because the residual
back-pressure seen at the
inlet of the part (while
the outlet is vented to
atmosphere) was not
within the established limits (reject minimum and maximum),
indicating that the passage was the wrong size.