EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 1 THE CALIBRATION.

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EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 1 THE CALIBRATION

EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V What is meaning of Quality & Quality control & quality assurance? 2 - Why Is Calibration? 3 - What Is Calibration? 4 - What are types of calibration laboratory? 5 - Control of the calibration environment. 6 - Important Expression. 7- Standard unit 8 - Calibration certificate. 9 -ISO/TS 16949, ISO 9001, ISO 17025, accreditation Requirements in calibration. Contents

EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 3 Product quality depend on: Measuring instrument accuracy (uncertainity) -If the confidence level of your measurement process is low, you will be accepting some bad products and rejecting another good ones.OR producing some out of specifications products. 2- Why Is Calibration? 3 - What Is Calibration? Comparing the output of the process instrument being calibrated against the out put of a standard instrument of known accuracy.

EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V What are types of calibration laboratory Mass and Dimension Mechanical Electrical Thermal Measuring instrument accuracy depend on periodic calibration to assure that manufacture specifications (instrument accuracy) are met. Calibration plan

EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 5 5-Control of the calibration environment : Humidity : In general (20 %-50% RH) Temperature 20 ºc Dust Levels Electrostatic Discharge( ESD) Vibration

EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 6 - What is meaning of: Accuracy & Precision? - Inaccurate - imprecise - Inaccurate - precise - Accurate - precise 6-1 Important Expression Accuracy:The closeness of the agreement between the result of measurement and the true value of the measurand. Precision: A measurement of consistency or repeatability of a set of measurements (freedom from random error).

EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 7 2-Resolution of the measurement: The degree to which a measurement can be determined. 1-Sensitivity: Is the minimum input that will result in a discernible change in an output. Scale deflection /value of measured quantity causing deflection. What is meaning of: Sensitivity& Resolution? 6-2 Important Expression

EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 8 Linearity: 1- zero drift 2- sensitivity drift 3- zero drift + sensitivity drift. Dead space: 6-3 Important Expression

EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V Important Expression uncertainty For micrometer =1 in 10 9 uncertainty For micrometer =1 in 10 5 uncertainty For micrometer =1 in 10 6 uncertainty For micrometer =1 in 10 7 uncertainty For micrometer =1 in 10 4

EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V Standard Unit

EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V Calibration certificate Each certificate or report shall include at least the following information's :- -Estimated uncertainty of calibration. -Traceability. - Measurements, examinations, supported by tables, graphs. -Reference to methods and sampling procedures. -Condition of the calibration………….

EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 12 ISO/TS and ISO 9001 Requirements in calibration.

EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 13