Calibration of orbital shaker, Purpose :
Calibration of orbital shaker, The purpose of this SOP is to describe the operation, calibration and cleaning of Orbital Shaker (Model: Stuart SSL1), used for shaking flask, bottle and beaker to dissolve solids in liquid.
Calibration of orbital shaker, Scope :
This procedure is applicable for Orbital Shaker (Model: Stuart SSL1), installed in the quality control laboratory XX Pharmaceuticals Limited.
Definitions / Abbreviation:
[][]SOP: Standard Operating Procedure.
[][]QC: Cephalosporin Quality Control.
[][]RPM: Rotations per minute.
Responsibilities:
Executive, QC
[][]To ensure that the instructions of this procedure are correctly followed.
[][]To maintain the records properly as per SOP.
[][]To ensure cleaning of orbital shaker maintaining safety rules.
Manager, Quality Control
[][]To ensure that this procedure is kept up to date.
[][]To confirm that the SOP is technically sound and reflects the required working practices.
[][]To arrange training on the SOP to all concerned personnel and to ensure implementation of the SOP after training.
Procedure:
Precaution(s):
[][]Laboratory coat and safety glasses must be worn while handling the instrument.
[][]Ensure that the main switch and power supply connector are accessible during use.
[][]There is a chance of liquid spillage and splashing if containers are over filled and shaken at high speed. Always gradually increase the speed to the desired level. Never set the speed beyond the maximum limit.
[][]Remove the plug from the main socket during cleaning.
[][]The shaker should not be operated at the maximum RPM without a load.
[][]Do not leave the shaker unattended when starting the unit. Be sure all flasks are firmly seated in the platform and securely clutch between screwing bars.
[][]Ensure the speed controller knob are turned off before switch on the instrument.
Operation:
[][]Check the calibration sticker to ensure that the instrument is within due date of calibration.
[][]Place the apparatus on a firm level surface ensuring the platform is free from vibration.
[][]Fit the flasks or bottles or beakers to be shaken between two rubber cushioned horizontal screwing bars and adjust to hold them tightly.
[][]Switch ‘ON’ by pressing the ‘control’ knob.
[][]Red dot in the display shows RPM is selected; this can be adjusted by turn the ‘control’ knob to the right up to desired shaking speed (in rpm). Once the correct speed is displayed press the ‘start/stop’ button to begin motion.
[][]In order to use the timer and RPM press the ‘mode’ button. The red dot on the display moves over to time. The display will show the last stored time in minutes.
[][]Select the desired count down time using the control knob. When the display shows the correct time in minutes.
[][]Rotation can be paused at any time by pressing the ‘start/stop’ button.
[][]Rotation will start again by pressing ‘start/stop’ button and the timer will continue to count down.
[][]The timer can be adjusted without halting the unit. When the timer reaches zero, the unit will be automatically halted and alert will sound.
[][]Press ‘start/stop’ button to revert back to the last time and speed values set or select new value.
[][]The shaking will stop automatically after the desired period and sounds an alert.
[][]Switch OFF completely by pressing the ‘control’ knob. The display will show OFF
Calibration:
[][]Calibrate the orbital shaker once in a year.
[][]Switch ‘ON’ the mains.
[][]Switch ‘ON’ the instrument by pressing ‘control’ knob.
[][]Set the desired time (most commonly used time range) using time setting button.
[][]Check the time using a calibrated stop watch and record the time in the calibration information sheet for Orbital shaker as per Annexure-I.
Cleaning procedure:
[][]Clean the instrument once in a week or when required.
[][]Switch ‘OFF’ the instrument and switch ‘OFF’ the mains.
[][]Clean the instrument properly with a non-abrasive cloth moistened in detergent water.
[][]Never use harsh or abrasive cleaning agents.
[][]Allow to dry before use it again.
Annexure:
Annexure-I: Calibration Information Sheet for Orbital Shaker.