SOP Title: Operation, Cleaning and Calibration of Refrigerator
- Objective:
To lay down the procedure for Operation, Cleaning and Calibration of Refrigerator.
- Scope:
This SOP is applicable for Operation, Cleaning and Calibration of Refrigerator located in the wet chemistry area of Quality Control Department.
- Responsibility:
- Quality Control: To prepare and review the SOP. To follow the procedures laid down for Operation, Cleaning and Calibration of Refrigerator as per this SOP.
- Quality Assurance Department: To review and approve the SOP and Annexures.
- Accountability:
Head Quality Control Department, Head Quality Assurance Department.
- Procedure:
| 5.1 | Safety Precautions/Instructions: | |||||||||
| 5.1.1 | Ensure all the electrical connections are properly earthed. Ensure the power plug of the refrigerator is fixed in the socket properly. | |||||||||
| 5.1.2 | Ensure that the ON/OFF switch is working properly by switching “ON” the refrigerator. | |||||||||
| 5.1.3 | Place the refrigerator at least 30 cm away from the adjacent side wall and 10 cm away from the backside wall for free circulation of air. | |||||||||
| 5.1.4 | Ensure that refrigerator is placed away from direct heating sources. | |||||||||
| 5.1.5 | Do not use the extension board to connect refrigerator plug. | |||||||||
| 5.1.6 | Levelling should be done with rotation of front leg to avoid imbalance of the refrigerator. | |||||||||
| 5.1.7 | Do not place the heavy object or the dangerous object in the refrigerator or on the refrigerator. | |||||||||
| 5.1.8 | Do not modify power cord length or share the outlet with other appliances. | |||||||||
| 5.1.9 | Do not operate with wet hands or in damp environment. | |||||||||
| 5.1.10 | Do not splash water on refrigerator. | |||||||||
| 5.1.11 | Do not leave refrigerator open for long time. Don’t open the refrigerator door too often, hot air will enter and increases the temperature. | |||||||||
| 5.1.12 | Never overload refrigerator or cover the shelves with paper or plastic sheets as it will reduce its efficiency. | |||||||||
| 5.1.13 | Close the door properly; make sure that there is no gap between the gasket and the cabinet of refrigerator. | |||||||||
| 5.2 | Operation: | |||||||||
| 5.2.1 | Connect the refrigerator to electric power supply. | |||||||||
| 5.2.2 | Switch “ON” the mains of the refrigerator. | |||||||||
| 5.2.3 | Adjust the refrigerator knob to attain temperature i.e. 20C to 8°C according
to the season as mentioned below. 1) In summer season set the refrigerator knob in between 5 – 7. 2) In rainy season set the refrigerator knob in between 3 – 5. 3) In winter season set the refrigerator knob in between 1 – 3. |
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| 5.2.4 | Place the items required to be stored into the refrigerator and close the door properly. | |||||||||
| 5.2.5 | Ensure that the lamp inside the refrigerator glows when door is open. | |||||||||
| 5.2.6 | Push the defrost knob when ice level reaches to defrost indicator. | |||||||||
| 5.2.7 | Record the temperature twice in a day by using calibrated thermometer as per Annexure i.e. in first half and in second half of the day. | |||||||||
| 5.2.8 | For issuance of ‘Temperature Monitoring Record’ refer SOP ‘Control of documents, Preparation, Approval, Issuance and Maintenance’. | |||||||||
| 5.3 | Cleaning Procedure: | |||||||||
| 5.3.1 | Disconnect electric power supply of refrigerator before cleaning. | |||||||||
| 5.3.2 | Use dry cloth only for cleaning exterior and interior. | |||||||||
| 5.3.3 | Replace all the items back into the refrigerator and put ON the refrigerator. | |||||||||
| 5.3.4 | Do not use mechanical devices to accelerate the defrosting process. | |||||||||
| 5.4 | Calibration Procedure: | |||||||||
| Frequency: Once in a year | ||||||||||
| 5.4.1 | Calibration shall be carry out by external agency OR by using calibrated thermometer as per SOP “Calibration of Instruments and Equipments”. | |||||||||
| 5.4.2 | Refer Annexure for calibration test to be performed and acceptance criteria.
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| 5.4.3 | For issuance of calibration report refer QA SOP “Control of documents, Preparation, Approval, Issuance and Maintenance. | |||||||||
| 5.4.4 | If any breakdown occurs, follow procedure as per SOP number “Calibration of Instruments and Equipments”. | |||||||||
- Definitions / Abbreviations:
- Definitions:
- Abbreviations:
| Abbreviation | Expansion |
| SOP | Standard Operating Procedure |
| QC | Quality Control |
| QA | Quality Assurance |
| No. | Number |
| °C | Degree centigrade |
| ± | Plus or minus |
| cm | Centimetre |
| i.e. | That is |
| % | Percentage |
| Hrs | Hours |
*Note – Ready to use SOP available in “DOWNLOAD” Section.