SOP for Operation and Calibration of Hot Air Oven

This document describes (Standard Operating procedure) Sop for Operation and calibration of Hot Air Oven in Quality Control Department

Sop for Operation and Calibration of Hot Air Oven used in Quality Control Department

I. Purpose & Scope:

  • The purpose of this SOP is to lay down a procedure for operation and calibration of Hot Air Oven.
  • This procedure is applicable for operation and calibration of Hot Air Oven used in the Quality control laboratory

II. Responsibilities:

  • All Quality Control and related personnel shall be responsible to follow and implement this SOP for Operation and Calibration of Hot Air Oven

III: Introduction and Procedural Part :

Sop for Operation and Calibration of Hot Air Oven :

General Cleaning: 

  • Clean the instrument with a clean dry cloth every day.
  • If required wet cloth dipped in dilute soap solution and furthermore wet cloth dipped in potable water can be used for cleaning.
  • Precautions has to be taken to clean the instrument immediately with dry lint free cloth to remove the moisture.

Precautions :

  • Do not open the door frequently.
  • Do not keep inflammable solvents in oven.

General Instructions:

  • Place equipment at designated location on leveled floor. Maintain sufficient distance around the equipment for operator movement.
  • Open door of equipment and place trays /racks in position. Close door firmly.
  • Keep the ventilation port partly open so that oven has sufficient ventilation.
  • Connect equipment plug supply and switch on mains.
  • Set temperature controller to required temperature.
  • Set safety controller to 4°C above set temperature to set safety controller press ▲key to increase and▼key to decrease setting.
  • Allow some time for achieving set condition.

Operation of Hot Air Oven :

  • Switch ‘ON’ the instrument.
  • Switch on the temperature control panel.
  • The digital controller, display will illuminate and indicate ambient
  • Press push button of digital controller, when this switch is press the display indicates set temperature. Set the required temperature by rotating ‘SET’ knob.
  • Once the required temperature is set, release the push button, now the display will indicates actual temperature within the oven.
  • Switch on the Fan for uniform maintain the heat in oven.
  • Record the temperature at start of shift, middle of shift, end of Shift in Annexure- I
  • At the End of Shift switches of the instrument.

Calibration :

  • Calibration Frequency: Calibration done by external Agency once in year.



Annexure I

 Temperature Monitoring Record :   

Area :                       

Instrument Name:

Instrument ID:

Temperature Limit:       


Date Time Temp in ºC Checked By Remark

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