Patent ID: 8413499

Claim:
A Partial Stroke Testing (PST) equipment configuration comprising: means for altering application of power applied to an electromechanical valve to trigger movement away from a fully open state; means for detecting the movement away from the fully open state of the electromechanical valve; means for altering application of the power to the electromechanical valve to re-establish the fully open state following detection of the movement away from the fully open state, wherein the means for detecting the movement away from the fully open state also detects the re-establishment of the fully open state of the electromechanical valve; means for detecting a first period of time occurring between a first alteration of power and a triggered movement away from the fully open state and detecting a second period of time occurring between a second alteration of power and re-establishment of the fully open state of the electromechanical valve; and means for registering passing or failure of PST based on the detected movement of the electromechanical valve and the detected first and second periods of time.