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Operating Instructions - CPC3050
High-Speed Pressure Controller
CPC3050
6.4.11 Leak Test Application
Leak test is a device under test specific feature (figure 6.4.11). The user selects the transducer
first and then defines a leak by setting the Dwell Delay and the Dwell Time, Delta and Setpoint
parameters. The leak test is initiated by pressing the Start button.
Dwell Delay:
The amount of time the controller remains at the Setpoint before the test begins.
Dwell Time:
The amount of time the controller is monitoring the pressure change.
Delta:
The change in pressure during the test that determines a pass or fail result.
Setpoint:
The controller pressure at which the test begins.
If the change in pressure exceeds the Delta parameter before the allotted time in the Dwell Time
parameter, then the Leak Test App will return a red status indication showing initial, final and the actual
difference (delta) in pressure recorded, and indicate a “failed” test. Otherwise it will return a green status
indication showing the delta was not exceeded for the Dwell Time, and indicate a “passed” test. See
Figure 6.4.11-A for examples of a failed and a passed test.
Figure 6.4.11 – Leak Test
Figure 6.4.11-A – Leak test fail (left) & Leak test pass (right)
