MPK | SOP FOR PROCEDURE OF OPERATION,CLEANING AND MAINTENANCE OF OVEN IN MICROBIOLOGICAL LAB | MPK

 

SOP FOR PROCEDURE OF OPERATION ,CLEANING AND MAINTENANCE OF OVEN IN MICROBIOLOGICAL LAB

1.0.      Purpose:

To describe the procedure of operation ,cleaning and maintenance of oven.

 

2.0.      Scope:

This procedure is applicable to microbiology lab in  (Pvt) Ltd.

 

OVEN

3.0.      Responsibilities

Action	Responsibility
Follow and implement this SOP	Microbiologist/Trained lab attendant
Compliance of SOP	Laboratory Incharge

 

4.0.      Procedure

4.1. Operation procedure

S. No	Action	Responsibility
4.1.1	Insert plug in to the socket	Microbiologist
4.1.2	The green stand by LED illuminates
4.1.2	Press switch on/off buttom until the display lights up.
4.1.3	The controller is now in normal display. If the oven is operating the actual temperature value is displayed.
4.1.4	If the oven is in time function ”timer operation” with no time programmed or the set time run-off, the unit is inactive (no heating). The display alternately shows the actual temperature value “OFF”
4.1.5	The heating and fan are active as soon as the red heating control light in the bottom right corner of the display slowly begins to flash depending on the heat requirement.
4.1.6	Opening the air flapping the out going air pipe serves to adjust the air change.

 

4.2. Controller setting

S. No	Action	Responsibility
4.2.1	The controller is operating, the controller is in normal display (actual value) the actual temperature value is displayed:	Microbiologist
4.2.2	Press set point key button: the button shows alternatively “SP” and in the entry level the previous temperature set-point
4.2.3	With the selector keys buttons enter a set point values between 0 and 300
4.2.4	The desired temperature set point can be selected in a temperature range from 50C above room temperature upto 1000C (BD) or (ED/FD).
4.2.5	Wait 2 seconds until the entered temperature value is taken over (display flashing once).
4.2.6	Press set point value key button to return to normal display (actual value display) (automatically after 60 sec.

4.3. Time Functions

S. No.	Action	Responsibility
4.3.1	Press the time management function	Microbiologist
4.3.2	The timer indicates its current time function. There are two possible time functions: continuous operation and timer operation
4.3.3	Continuous operation: the display shows alternately “t1” (time function) “continuous function” ”t inf”.
4.3.4	Time operation: the display shows alternately “t1” (time function) and the running –down time or “tOff”.
4.3.5	Press set point value button to return to normal display (actual value display) (automatically after 60 seconds)

 

5.4. Switching between continuous operation and timer operation

S. No	Action	Responsibility
4.4.1	Press the time management function	Microbiologist
4.4.2	In the time function “Timer Operation” the timer is just running off (‘t1’ displayed alternately with the running –down time) the timer must at first be set to zero
4.4.3	Press set point value button to return to normal display (actual value display) (automatically after 60 seconds)

 

5.5. Continuous operation

S. No	Action	Responsibility
4.5.1	Press the time management function	Microbiologist
4.5.2	If necessary, switch to timer operation by button
4.5.3	Press set point value button to return to normal display (actual value display) (automatically after 60 seconds)
4.5.4	To cancel continuous operation, proceed accordingly:
4.5.5	Press the time management buttom
4.5.6	Switch the timer operation by pressing down button for 20 seconds

 

 

4.6. Timer operation

S. No.	Action	Responsibility
4.6.1	Press the time management function	Microbiologist
4.6.2	If necessary, switch to timer operation by button
4.6.3	Set the desired time [hh.mm] with buttons in the entry level.
4.6.4	The time directly begins to run off after taking –over of the entered value. Heating and fan (with FD) are active until the timer has run – down.
4.6.4	Press set point value button to return to normal display (actual value display) (automatically after 60 seconds)
4.6.5	The controller operates with the entered set-points until run-down of the set time. Heating and fan (with FD) are active until the timer has run – down.
4.6.6	To know the remaining timer time or, if applicable, to modify it, press the time management buttom in normal display (actual value display).
4.6.7	The display alternately shows “t1” and in the entry level running –down time.
4.6.8	After the set time has run down the display alternately shows the actual temperature value and “tOff”.
4.6.9	Now the heating and fan (with FD) are inactive.

 

5.0. Maintenance

S. No	Action	Responsibility
5.1	The unit must not become wet during operation or maintenance works	Microbiologist
5.2	Put off circuit the unit before conducting maintenance work. Pull the power plug
5.3	Have all maintenance work conducted by professional electricians or experts authorized by .....,
5.4	Change the door gasket in cold condition only. Otherwise the door gasket will be damaged.

 

6.0. Cleaning and Decontaminating

S. No	Action	Responsibility
6.1	Disconnect the chamber from the mains before cleaning. Pull the power plug	Microbiologist
6.2	Wipe the inner and outer surface with moistened towel soked with in standard commercial cleaning detergents free from acid or halogenide or 70 % IPA
6.3	If necessary, have strong contaminated inner chamber parts removed by an engineer for cleaning, or have them exchanged. Sterilized the inner chamber parts in a sterilizer or autoclave.

 

7.0.      Definitions:

Term/word/statement	Meaning/Description
Dry heat sterilizer	one of the earliest forms of sterilization practiced. Dry heat, as the name indicates, utilizes hot air that is either free from water vapour, or has very little of it, and where this moisture plays a minimal or no role in the process of sterilization.

 

 

8.0.      Annexure

S. No	Description of Annexure
I.	Daily monitoring record of oven

 

 

 

 

 

 

Annexure-I

Daily monitoring record of Oven ------- (QC-000)

S No	Date	Load	Oven started	Temperature required (0C)	Temperature achieved at	Time out	Operated by

 

 

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