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    Calibration of Angle - Bevel Protector

    Uploaded by

    Manivasagan Vasu
    This document provides a calibration procedure for angle and bevel protectors. It outlines the purpose, scope, responsibilities, calibration conditions, general guidelines, and calibration procedure. The calibration procedure involves visually inspecting the unit under test, placing it against an angle gauge on a surface plate, and recording measurements to check for errors against the instrument's stated accuracy. Records of measurements are documented on checklists.

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    © All Rights Reserved
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    Calibration of Angle - Bevel Protector

    Uploaded by

    Manivasagan Vasu
    1K views6 pages
    This document provides a calibration procedure for angle and bevel protectors. It outlines the purpose, scope, responsibilities, calibration conditions, general guidelines, and calibration procedure. The calibration procedure involves visually inspecting the unit under test, placing it against an angle gauge on a surface plate, and recording measurements to check for errors against the instrument's stated accuracy. Records of measurements are documented on checklists.

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    This document provides a calibration procedure for angle and bevel protectors. It outlines the purpose, scope, responsibilities, calibration conditions, general guidelines, and calibration procedure. The calibration procedure involves visually inspecting the unit under test, placing it against an angle gauge on a surface plate, and recording measurements to check for errors against the instrument's stated accuracy. Records of measurements are documented on checklists.

    Copyright:

    © All Rights Reserved
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    1K views6 pages

    Calibration of Angle - Bevel Protector

    Uploaded by

    Manivasagan Vasu
    This document provides a calibration procedure for angle and bevel protectors. It outlines the purpose, scope, responsibilities, calibration conditions, general guidelines, and calibration procedure. The calibration procedure involves visually inspecting the unit under test, placing it against an angle gauge on a surface plate, and recording measurements to check for errors against the instrument's stated accuracy. Records of measurements are documented on checklists.

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    © All Rights Reserved
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    of 6

    CALIBRATION

    LABORATORY

    ANGLE / BEVEL PROTECTOR


    TITLE : PROTECTOR CALIBRATION PROCEDURE

    Document No. Rev. No. Issue No. Date of Issue Page No.
    L3- CAL-17 0 1 01-Jan-2019 2 of 6

    REVISION RECORD SHEET


    NOTES

    i) Revisions after Rev. 0 are denoted by a vertical line in the left hand margin
    against the revised text, with the revision number displayed next to the revision
    line as shown on the left.

    ii) Revision numbers are A, B, C, etc. up to the issue for management approval
    and implementation, which is Rev. 0. Subsequent revisions shall be 1, 2, 3,
    etc.

    No. Date Description of Revision Prepared Review Approved

    Issued for approval &


    0 01-Jan-2019 MS JR JC
    implementation

    DOC. NO. L3- CAL-17 Rev. 0 dt. 01-Jan-19 Page : 2 of 6


    TITLE : PROTECTOR CALIBRATION PROCEDURE

    Document No. Rev. No. Issue No. Date of Issue Page No.
    L3- CAL-17 0 1 01-Jan-2019 3 of 6

    Table of Contents

    S/No. Description Page No.

    1.0 Purpose 4

    2.0 Scope 4

    3.0 Reference 4

    4.0 Definitions 4

    5.0 Responsibilities 4

    6.0 Calibration Conditions 4

    7.0 General Guidelines 5

    8.0 Calibration Procedure 6

    9.0 Records 6

    10.0 Attachments 6

    DOC. NO. L3- CAL-17 Rev. 0 dt. 01-Jan-19 Page : 3 of 6


    TITLE : PROTECTOR CALIBRATION PROCEDURE

    Document No. Rev. No. Issue No. Date of Issue Page No.
    L3- CAL-17 0 1 01-Jan-2019 4 of 6

    1.0 PURPOSE
    1.1 The purpose of this work instruction is to ensure that standard practices /
    methods of Calibration are followed to obtain reproducible and comparable
    results and this document shall be revised as and when required to meet
    specific requirements of the project to become a project specific work
    instruction.

    2.0 SCOPE
    2.1 This work instruction is applicable for Calibration Laboratory to carryout
    calibration of Angle Protector at Lab. temperature as per applicable
    international standards/methods.

    3.0 REFERENCE
    3.1 Documents used:
     BS 1685 - Bevel Protractors (Mechanical & optical) - Requirements and
    Test Methods
    3.2 Angle Gauge
    3.3 Protractor Digital
    3.4 Surface Plate

    4.0 DEFINITIONS
    4.1 UUT: Unit Under Test
    4.2 BS: British Standard

    5.0 RESPONSIBILITIES
    5.1 All the Operators/Technicians perfoming the Calibration shall be trained.

    6.0 CALIBRATION CONDITIONS


    6.1 Lab. Temperature : (21 ± 2) °C
    6.2 Relative Humidity : (50 ± 15) % RH

    DOC. NO. L3- CAL-17 Rev. 0 dt. 01-Jan-19 Page : 4 of 6


    TITLE : PROTECTOR CALIBRATION PROCEDURE

    Document No. Rev. No. Issue No. Date of Issue Page No.
    L3- CAL-17 0 1 01-Jan-2019 5 of 6

    7.0 GENERAL GUIDELINES


    7.1 The calibration should be performed in the controlled environment only. Both
    the UUT and Reference Standard equipment should be placed in controlled
    environmental condition as mentioned above for at least 30 min warm up.
    7.2 UUT should be inspected visually before starting the calibration. Visual
    inspection is done for
     Any physical damage.
     Proper Display (in Digital Bevel Protractor)
     Proper functioning of push buttons (in Digital Bevel Protractor)
     Clarity in Magnifying Glass (For Vernier type bevel protractor)
     Rusting in the blades.
     If there is any rusting, it should be removed properly in such a fashion
    that flatness of the surface should not be affected.
    7.3 If it is not satisfactory, it is to be recorded in the Data Sheet.

    Bevel Protractor – Vernier type


    Angle Protractor

    Digital Bevel Protractor Digital Angle Protractor

    DOC. NO. L3- CAL-17 Rev. 0 dt. 01-Jan-19 Page : 5 of 6


    TITLE : PROTECTOR CALIBRATION PROCEDURE

    Document No. Rev. No. Issue No. Date of Issue Page No.
    L3- CAL-17 0 1 01-Jan-2019 6 of 6

    8.0 CALIBRATION PROCEDURE


    8.1 Wipe clean the blade properly.
    8.2 Wipe clean the surface plate properly.
    8.3 For Bevel protractors, place the angle gauge between the measuring face of
    the blade and the base of the protractor and note down the reading of the
    protractor in datasheet.
    8.4 For Digital Angle Protractor place the angle gauge on the surface plate and
    put the measuring face of the protractor on the angle gauge to get the
    reading.
    8.5 For Mechanical type Angle Protractor place the angle gauge between the
    measuring faces of the protractor and note the reading.
    8.6 Similarly take the reading for other sizes of the angle gauge.
    8.7 Take the reading one by one in such a fashion that it covers the whole range
    of the UUT.
    8.8 Compare the maximum error found with the instrument accuracy as per BS
    1685 (for Bevel Protractor) and as per manufacturer’s specification (for angle
    protractor) and the accuracy statement is made accordingly in the calibration
    certificate.

    9.0 RECORDS
    9.1 Measurement/reading shall be recorded in the appropriate Check
    List/Formats given the Attachment.
    9.2 The test report should contain the following information as minimum.
     Client/Customer Name
     Instrument Manufacturer, Make, Model, Range, Serial No & Accuracy
     Test results

    10.0 ATTACHMENT

    S.No Format No. Description

    DOC. NO. L3- CAL-17 Rev. 0 dt. 01-Jan-19 Page : 6 of 6

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