Vacuum Leak Test | operation of vacuum leak tester

Ensure instrument plug is properly connected to power socket.
Display will show self-test process which mention “Connect Desiccator.”
Check the connectivity of vacuum desiccator with instrument properly to avoid a leakage from tubes and its circumference lid. Display will also show “Press Enter (↵) Press ‘Enter’ and the instrument will perform self-test by creating vacuum.
The instrument will check pump for its normal functioning. If pump function found ok the instrument shows ‘Pass’ status on the LCD screen.
In case the function checks fail, place the desiccator lid again ensuring its firm and proper fitment on the desiccator. Restart the instrument.
To operate the instrument press, enter (↵), the display will show “Test Run Menu” which consist “standard mode’ and “Admin mode” followed by date and time at the bottom.
Place the sample can or bottle inside the desiccator wrapped in the tissue paper properly and cover sample top/ part/ area with tissue, where leakage needs to be checked.
Enter the standard mode by pressing “Enter. The next display will show as following:

Vacuum Time

DEL Time (Delivery Time)

Hold Time

RET Time (Retention Time)

Enter required values as per test, to be performed and press start to initiate the test.
After completion of the test the instrument itself releases the vacuum according to the program.
After testing wipe the desiccator for any leftover solvent with tissue paper.

Calibration

Take a calibrated vacuum gauge for calibration of instrument. Remove the tube from the instrument and connect to the vacuum gauge

Run the instrument as mentioned below in the table;

Frequency of calibration: Twelve months (for the timer, vacuum gauge and vacuum holding capacity).

Cleaning Procedure:

Cleaning of leak test apparatus by using purified water and clean outer and inner surface with the help of the lint – free cloth.
Place the apparatus for dryness for half an hour.
Change the desiccator water twice in a week or as per required.