Flowserve ValveSight Diagnostics - Manual (Page 32)

ValveSight Diagnostics for HART User Manual FCD VSENSF0001-02-AQ 03/15
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Partial Stroke Test Settings
The “Time To Target” determines the acceptance criterion for the Pass/Fail result of the test. If the valve does not move to
within 2% of the Stop Position before the Time to Target time has lapsed, the result of the test will be Fail. Test Duration
determines the amount of time data collection will continue after the test has started.
Graph Settings
The “Graph Settings” box allows for selection of the items (Position, Command, Port 1 Pressure, Port 2 Pressure, IL
Command, and IL Position) to be displayed on the graph. All data is collected regardless of these settings.
Monitors
The “Monitors” box shows information regarding the status of the test. Test Status shows Complete when the data has
been collected. Partial Stroke Test Progress shows the progress of the test.
Break Away Information
The “Break Away Information” box gives details about the test results. Time indicates the time for the valve to begin mov-
ing after the command was sent. Pressure is the difference between the pressures in the two ports. The Time to Target is
the actual time it requires for the valve to arrive within 2% of the final value. The Result gives a Pass/Fail indication of the
test based on the reference time to target and the actual time to target.
Data Management
At the bottom of the screen, there are buttons to manage the signature data. You can Save the data to a file or Load
(retrieve) a previously stored signature from a file for viewing. The Start button begins the partial stroke. Clicking the Stop
button aborts a signature in process and returns the valve to normal operation.
8 Calibration
This screen provides navigation to the following screens:
• Actuator/Stroke/Friction (includes pressure sensors, position, and friction)
• Stroke (includes only position)
• Analog Output (must have analog output hardware)
• Analog Input