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Copyright © Yokogawa Corporation of America
1
Calibration Intervals
Best Practices in Maintaining Pressure Transmitters
Michael KellerProduct Manager – Temperature and Multivariable Transmitters
May 24, 2016
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Why?
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Agenda
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Pressure Basics
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Pressure Definitions
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Reference Accuracy
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Zero Point Errors
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Zero Point Errors Adjusted
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Full Scale Errors
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Full Scale Errors Adjusted
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Linearity
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Repeatability
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Hysteresis
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±3 Specification Conformance
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What is Real World Performance?
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Real World Performance = Total Probable Error (TPE)
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Real World Performance = Total Accuracy (TA)
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Overpressure Effect
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Total Accuracy Calculation Example
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Calculating Calibration Interval
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Calculating Calibration Interval Example
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Calculating Calibration Interval Example
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Calculating Calibration Interval Example
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Calculating Calibration Interval Example
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Calibration Interval Calculator
http://www.dpharp.com/index.php/performance-calculator
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Calibration Interval Takeaway
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Thank you very muchQuestions?