SOP FOR VERNIER CALIPER (DIGITAL) | STANDARD OPERATING PROCEDURE FOR CLEANING, OPERATION & CALIBRATION OF VERNIER CALIPER (DIGITAL)

1.0              OBJECTIVE

 To lay down the procedure for operation of Vernier Caliper (Digital)

2.0              SCOPE

This SOP shall be applicable to Vernier Caliper used in QC Dept.

3.0              RESPONSIBILITY

3.1              Chemist QC and above shall be responsible for the preparation and execution of this SOP

3.2              Sr. Chemist QC & above and QA Head shall be responsible for the checking and approval of this SOP.

4.0              ACCOUNTABILITY

Head QC

5.0              PROCEDURE

5.1              Cleaning

5.1.1        Ensure the cleanliness of the instrument.

5.1.2        Vernier caliper shall be wipe with a dry lint-free cloth on a daily basis so that there will be no dust particles on the apparatus.

5.2              Operation

5.2.1        Ensure that the switch “ON / OFF” shall be press.

5.2.2        The switch “in / mm” shall be press to get desired unit and ensure display shows “0.00mm / inch.”

5.2.3        To measure outer dimensions:

5.2.3.1  The slider clamp screw shall be unscrewing on the top.

5.2.3.2  The jaws shall be open with thumb roller.

5.2.3.3  The jaws shall be put as close to the reference surface as possible to the workpiece.

5.2.3.4  The measuring surface shall be make perfectly contact with the workpiece.

5.2.4        To measure inner dimensions: -

5.2.4.1  Unscrew the slider clamp screw on the top.

5.2.4.2  The inner jaws shall be put inside workpiece as deep as possible.

5.2.4.3  The measuring surface shall be make perfectly contact with the workpiece.

5.2.5        The display reading shall be noted down.

5.2.6        The workpiece shall be removed.

5.2.7        The jaws shall be close with the help of a thumb roller and tighten the slider clamp Screw.

5.2.8        Ensure that the switch “ON / OFF” shall be press off the instrument.

5.2.9        Calibration of the instrument:

Calibration of vacuum, oven shall be done by the external party on an annual frequency.

6.0            REFERENCES

Not Applicable

7.0              ANNEXURE

Not Applicable

8.0            ABBREVIATIONS

SOP         :           Standards Operating Procedure

QC           :           Quality Control

HOD        :           Head of the Department

QA           :           Quality Assurance

QCD        :           Quality Control Department

QAD        :           Quality Assurance Department

EQP         :            Equipment

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