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Title: Using Control Charts To Predict Failures Of Measurement Devices
Author: Zaki Husain
Source: 2017 International School of Hydrocarbon Measurement
Year Published: 2017
Abstract: A Control Chart of a measurement device is a historical documentation of the performance of the device. For a flow meter, a control Chart is the Meter Factor (MF) of the flow meter plotted or tabulated in consecutive proving in time. Figure 1 is an example of a typical control chart of a flow meter. This flow meter is installed to measure flow rate in a process control application, where flowing fluid remains the same, but the flow rate and temperature of the fluid is change for the process of each week. The flow rate from week to week range varies between 62 to 85 percent of the maximum flow rate range of the meter, while the temperature maintained from week to week is between 55 and 83 degree Fahrenheit. Measurement uncertainty for the process needs to be within +/-0.05%. The baseline calibration to the flow meter indicated that the meter performance was acceptable for the application.

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