Vacuum Drying Oven Calibration, Purpose :
Vacuum Drying Oven Calibration, The purpose of this SOP is to describe the operation, calibration and cleaning of Vacuum Drying Oven (Model: VO 200S) used for drying of the raw materials in the quality control laboratory at XX Pharmaceuticals Ltd.
Scope :
Vacuum Drying Oven Calibration, This procedure is applicable for the Vacuum Drying Oven, installed in the quality control laboratory for general block at XX Pharmaceuticals Limited.
Definitions/Abbreviation:
[][]QC: Quality Control
Responsibilities:
The roles and responsibility is as follows:
Officer/Executive/Sr. Executive, Quality Control
[][]To ensure that this procedure is followed.
[][]To maintain the records properly as per SOP.
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.
[][]Arrange training on the SOP to all concerned personnel.
[][]To ensure implementation of the SOP after training.
[][]Schedule calibration of the instrument at the defined intervals.
Head of Quality Assurance
[][]Approval of the SOP.
[][]To ensure overall implementation of the SOP.
Annexure:
[][]Annexure-I : Log Book for Vacuum Drying Oven
[][]Annexure-II: Calibration Record of Vacuum Drying Oven
Procedure:
Precaution(s):
[][]Wear the temperature resistance gloves to keep or remove materials from Vacuum Drying Oven.
Operation:
[][]Operation in normal mode
[][]Switch on the main switch of the Vacuum Drying Oven.
[][]Open the door and place the samples into the Vacuum Drying Oven.
[][]Press push/turn control key to put on the main power switch in front of the Vacuum Drying Oven. The Vacuum drying oven will start in normal mode with the display of timer, the chamber temperature, alarm temperature (red color indication).
[][]Select operating mode “Normal operation”. Press and hold on the SET key (approx. 3 sec) until the current operating option is flashing.
[][]Select temperature set point. Hold down the SET key and use the push/turn control key clockwise or anticlockwise to select the required temperature set point.
[][]After the SET key has been released the Vacuum drying oven briefly flashes the temperature set point. Set the temperature as per requirement. Heating is indicated by the orange heater symbol.
[][]Select the fan speed. Turn the push/turn control clockwise until the fan symbol is flashing. While the holding down the SET key. Use the push/turn control to set 50% fan speed.
[][]Select the alarm temperature. Turn the push/turn control clockwise until the monitor temperature display is flashing. Hold down the SET key and use the push/turn control to set the alarm temperature.
[][][][]The display then changes to the actual current temperature and starts to the setting temperature. The temperature will be automatically increased at setting temperature and display the setting temperature digitally.
[][]Observe the display temperature until stable position.
[][]At the end of drying, remove dried materials from Vacuum drying oven.
Operation in cyclic mode :
[][]Press push/turn control key to put on the main power switch in front of the instrument. The Vacuum drying oven will start in normal mode with the display of timer, the chamber temperature and alarm temperature (red color indication).
[][]Hold down SET key and turn the push/turn control key at the clockwise or anti clockwise for setting date, local time, operating temperature, alarm temperature. After setting, SET key will be released the display briefly flashes the set point.
[][]Press and hold down SET key to select the program and rotate push/turn control key at clockwise and select “Ramp timer” mode.
[][]Hold down the SET key and set the work day’s group using the push/turn control. Press push/turn control to select the ramp segment “t1” If the day is not required, it will be off position.
[][]Hold down the SET key and set the time using push/turn control.
[][]Select the ramp segment “t2” using the push/turn control. Hold down the SET key and using the push/turn control set the time.
[][]Turn push/turn control clockwise until the temperature display is flashing. Hold down the SET key and set the required temperature set point using push/turn control.
[][]Select the set point waiting time. Hold down the SET key and set on using the push/turn control. After the SET key has been released the function for set point waiting time is stored.
[][]Select hold time “t3”. Hold down the SET key and set the time using the push/turn control.
[][]Select the cooling time “t4”. Hold down the SET key and set time using push/turn control.
[][]Select program repeats “loop”. Hold down the SET key and set 2 for repeats using the push/turn control.
[][]Select the fan speed to set the air changes. Turn the push/turn control clockwise until the fan
[][]symbol is flashing. Hold down the SET key and set fan speed 50% suing the push/turn control.
[][]Select the alarm temperature. Turn the push/turn control clockwise until the monitor temperature display is flashing. Hold down the SET key and set the alarm temperature using the push/turn control.
[][]Turn the push/turn control at clockwise until the fan symbol flashing to move the air slider opens and closes the air valve to control the supply and discharge of air.
[][]Start the program. Turn the push/turn control clockwise until the stop symbol ▀ is flashing. Hold down the SET key and select start ► using the push/turn control. On releasing the SET key the program
starts to run.
Vacuum pump operation:
[][]After setting the drying temperature, switch on the vacuum pump.
[][]After completion of vacuum drying, turn the push/turn control knob until the Open door option is displayed. Press SET key to release the vacuum. Switch off the vacuum pump. Then the door of Vacuum drying oven can be opened.
Calibration:
[][]Frequency: Perform calibration of the instrument once in a year or if the system has been moved, serviced or a malfunction is suspected.
Temperature Calibration
[][]Insert the standard thermometer or thermocouples into the chamber.
[][]Press and hold down SET key until the normal mode light blinking.
[][]Turn push/turn control key clock wise to reach SETUP light.
[][]Select Calibration to rotate push/turn control key.
[][]Use three calibration temperatures as below :
CAL.1 : 30°C
CAL.2 : 100°C
CAL.3 : 200°C
[][]Select the required calibration temperature in SETUP key and set the corresponding calibration correction to 0.0°C.
[][]Measure the deviation from the selected calibration temperature under the steady conditions, using a reference instrument.
[][]Set the calibration correction in SETUP key. If the measured reference temperature is too low, the calibration correction setting is negative sign.
[][]Adjust the temperature if require from adjusting value of calibration temperature (CAL). The correction value should not more than ±0.50C.
[][]Carry out the check measurement using the reference thermometer.
[][]Carry out others two calibration temperatures in the same manner.
[][]Measure the vacuum pressure and input the data on calibration record.
[][]In case of internal calibration, record calibration data in Vacuum drying Oven Calibration Record, as per Annexure-II.
Calibration of pressure for vacuum chamber
[][]Calibrate pressure of vacuum chamber by calibrated multi-functional calibrator using five calibration pressures as below :
CAL.1 : 10 mbar
CAL.2 : 50 mbar
CAL.3 : 100 mbar
CAL.4 : 500 mbar
CAL.5 : 900 mbar
[][]Record calibration data in Vacuum drying Oven Calibration Record, as per Annexure-II.
[][]Cleaning of Vacuum Drying Oven :
[][]Clean the inner part of Vacuum drying oven with a cleaned cloth.
[][]Disinfect the inner surfaces with 70% IPA or ethanol when required.
[][]Clean the outer surfaces with dry cleaned cloth.
Maintenance :
[][]If Vacuum drying oven shows any mechanical, electrical or any others problem, inform to supplier or Engineering Department for maintenance.
[][]After maintenance, recalibrate the Vacuum drying oven.