LT5 Leak Detector - Quick Set Guide

Ensure that the leak tester is mechanically adjusted so that the necks of the bottles are positioned centrally under the test heads during the test.

The sealing force of the test head on the bottle needs to be set. This can be done in one of two ways:

For strong bottles which can withstand a large topload force, set the test head bracket so that there is approximately 10mm clearance above the bottle when the heads are up. Adjust the Test Head pressure regulator so that the test head comes down with enough force to seal on the bottle.

Alternatively, if the bottle is extremely lightweight, turn the pressure regulator to 2 Bar. Adjust the vertical position of the test head bracket so that when the heads are down, they compress the bottle by the amount required to get a good seal.

If the required settings for the job have not yet been established, start as follows. 

These are the "factory set" values and are intended as a starting point. They can be quickly reached by pressing the "RESET" button as each setting is displayed.

Set the pneumatic regulator "TEST HEAD FORCE" to 1 bar.

Set the pneumatic regulator "PRESSURIZATION" to 1 bar.

Send some bottles through the leak tester and make any adjustments to the guides that are required.

Note the leakage level obtained for good bottles (on the main DISPLAYS page). Set the Reject Level (on the SETTINGS page) to a level slightly above this. About 2% above this is usually correct, but this will depend on the consistency of the results. For example, if good bottles are coming through with 8.0 % pressure decay on average, set the Maximum Decay to 10.0 %. If the result is always between 7.5 % and 8.5%, the limit can be reduced to 9.0 % to improve the test sensitivity.