SOP FOR OPERATION AND CALIBRATION OF VERNIER CALIPER
PURPOSE: To lay down a procedure for operation and calibration of vernier caliper.
SCOPE: This SOP is applicable in Quality Assurance.
RESPONSIBILITY:
Preparation of SOP: QA Officer/ Sr. Officer
Checking and Review of the SOP: Executive/Sr. Executive
Approval of SOP: Head of Department/ Assistant Manger
Authorization of SOP: Head QA/Designee
Following the SOP: IPQA/production officer/Designee
ACCOUNTABILITY: Head QA shall be accountable for the implementation of the SOP.
PROCEDURE:
OPERATION:
After turning on the power, close the jaws and press ZERO switch.
After zero-set, vernier caliper ready for comparison measurements.
Open the jaws slowly and insert the object between it and then close the jaws. Note down the reading from the display. (LCD)
The least count of the apparatus is 0.01 mm.
The reading can also be turned in “inches” pressing “inch,/mm”. Caliper displays reading in inches.
The least count of the apparatus is 0.001 inches.
After completing the measurement, switch off the instrument and keep the apparatus in its cabinet when not in use.
CALIBRATION: Calibration of Vernier Caliper shall be done through external Agency.
Frequency: Yearly+ I month.