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SOP for Operation of Digital Griffin Flask Shaker


OBJECTIVE:
To provide a procedure for operating the digital griffin flask shaker. 

SCOPE: 
The procedure shall be applied when operating the digital griffin flask shaker in the Q.C Laboratory. 

RESPONSIBILITY: 
  • It is the responsibility of the QC Executive and any personnel using the equipment to follow the outlined procedure fully. 
  • It is the responsibility of QC Manager to ensure that the procedure is correctly followed without deviations. 
PROCEDURE:

System Set up:
  • Place the griffin flask shaker on a well leveled and sturdy base 
  • Connect the griffin flask shaker to 230V AC mains supply. Ensure that there is sufficient earthing. 
  • Fill the griffin flasks to the appropriate level. All the flasks ought to be filled equally to balance the load. 
  • Seal the flask and clamp it to the shaker. Tighten the wing nuts for proper grip so that the flask will not slip from the clamp. 
  • Make sure that both the arms of the shaker are properly balanced. 
Operation:
  • Switch ON the mains. 
  • To set the time, PRESS SET switch and release. 
  • Timer display will show ‘SET 1’ and then 00.00 on display. 
  • Set the required time with the help of ‘UP’ and ‘DOWN’ switches. 
  • Set the preferred speed using the blue front knob. 
  • Press ‘SET’ switch again to save the setting. 
  • To start the timer, press the start button, ‘START’ LED will glow, motor will start oscillating and timer will start counting the time. Counting is indicated by flashing decimal point of timer display. When the actual time equals set time the motor will stop and you will hear alarm for 10 seconds. Press stop if you want to switch off alarm immediately. 
  • Press the reset button for 2 seconds in order to start a new cycle 
  • You can either set a new time based on the instructions given above as press ‘START’ for next cycle of tests. 
Note: The instrument should not be operated at temperatures more than 50°C. It should be operated at normal room temperature away from direct sunlight and direct air draught. 

ABBREVIATIONS:
QA: Quality Assurance 
QC: Quality Control 
 V: Voltage 
AC: Alternating current 
LED: Light-emitting diode 

REVISION HISTORY:
Nil

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