How to use the air tightness tester, test principle, installation steps and practical experience sharing skills

Airtightness testing is a key part of product quality, and the testing equipment isAirtightness TesterIt is widely used in many industries such as new energy, household appliances, auto parts, consumer electronics, medical equipment, security lighting, valves and pipes, wire connectors and so on.It can simulate the real working environment and identify the sealing and waterproofing performance of the product under various air pressures.

iPhone Waterproof Test 2 — *The iPhone smartphone is rain-proof thanks to its excellent IP68 rating.*

masteredAir tightness testing equipmentThe use of the method, you can fully guarantee the quality of the product, but also to improve production efficiency, save a lot of cost expenditure.(This article is based on the JCGKAirtightness Tester(For example, it should be noted that different manufacturers and different types of instruments specific operating procedures and methods of use may be different, for reference only).

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I. Air tightness tester function introduction

Second, the air tightness tester installation steps

III. Proper use of the detector

Fourth, the use of airtightness tester tips

1. Test preparation

2. Test operation

3. Testing Techniques

V. Summary

Ⅰ.Airtightness TesterFunction

Airtightness TesterIt consists of two modules: the testing system (instrument hardware and testing software) and the sealing chamber (tooling and fixtures). Its "specialty" is to detect the air leakage of seals (finished or semi-finished products) under a certain pressure, and the test results can be seen at a glance. In addition, through the software programming can also realize automated testing, can be said to improve the efficiency of the "tool".

Principle of Airtightness Testing Animation 2 — *The principle of airtightness test is very simple, detecting the leakage of the product under a certain pressure, so it is also called the pressure drop method.*

Ⅱ.Airtightness TesterInstallation steps

First, take the instrument main unit and accessories out of the box and check to see if the power cord, air supply tube and manual are complete.
Arrange the instrument on the workbench, taking care to leave enough operating space around it.
Connect the factory (air compressor) air source and turn on the instrument power switch.
Installation of fixtures and instruments for the product under test.
Start the test software and set the test parameters according to the product requirements.

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III. Proper use of the detector

Prepare the product to be tested:Place the product in the tooling fixture and make sure the product surface is dry and clean with no visible damage or breakage.
Connect the air line:Connect the tester to the factory air source and make sure that the fixture and the instrument are in a smooth air path.
Setting parameters:According to the requirements of waterproof grade of the product, set the testing parameters, such as pressure range, test time, leakage amount, etc.
Start testing:Click the "Start" button, the instrument will automatically inflate to the set pressure, hold for a period of time and then start to detect the pressure drop. The system displays the test data and results, and at the same time issues sound and light prompts according to whether it passes or fails.
Recorded results:The test data is saved and can be exported via USB flash drive.
Warranty Maintenance:The instrument should be maintained at the end of the test to ensure long-term stable operation.

IV.airtightness testerTips for use

1. Test preparation

Preparation is the basis of testing, we need to ensure that the sample surface is neat and free of defects, so as not to affect the test results. At the same time, when it comes to complex samples (such as wiring harness connectors), the connectors must be tightened in place to avoid leakage that could cause the instrument to misjudge.

2. Test operation

To increase the efficiency of the test, the instrument is normally started 10 minutes in advance for warm-up. The test process requires a graded pressurization to observe any gas loss at each pressure point. Finally, the history of the differential pressure readings at each test point is retrieved for subsequent analysis.

3. Testing Techniques

In the actual test, you can give the difficult products for many times to repeat the test to lock the production quality problems; regular calibration of the instrument to ensure that the test results are accurate; involves more than one person to work together, need to clarify the responsibilities of the test node in order to ensure the efficiency of the work, and so on. After the test, you can also export the historical test data to the MES system for further analysis.

V. Summary

differentAirtightness TesterSpecific procedures and methods of use may vary. It is best to read the instrument's operating instructions and follow them before conducting the test. Meanwhile, for some complex products, multiple tests may be required to ensure the accuracy of the test results.

To learn more detailed airtightness testing program and application cases, please pay attention to [Jingcheng Engineering Airtightness].