Hirays high pressure air tightness tester is the only one that can use ultra-high detection pressureAir tightness testing equipment, waterproof grade testing, sealing testing instruments。

The applicable scope of the high-pressure air tightness tester is products such as deep-water cameras, underwater detectors, cameras, lamps and other products. Some of these products can withstand the impact of high-pressure gas without causing damage to the product. For products that cannot withstand the impact of high-pressure, you can only use the universal air-tightness tester of Hirays, or the low-pressure air tightness tester, or even the negative pressure gas detection equipment.For example, plastic parts, smart bracelets, etc. commonly use general-purpose air tightness testing equipment.High-pressure air tightness testing equipment is only suitable for air tightness testing and waterproof level testing of products that are not easily deformed and can withstand high-pressure impact, that is, sealing strength testing.

1. Overview of high-pressure air tightness testing equipment

High-pressure air tightness testing equipment, usually called air tightness testing equipment, air tightness tester, air tightness testing, air tightness testing, waterproof testing, waterproof testing, waterproof testing equipment, sealing test equipment, sealing detector, etc., is mainly used for ultra-high pressure testing.Comparing the Hiraysi high-pressure air tightness testing equipment with the universal type, the main difference is that the high-pressure air tightness testing equipment has a wider pressure tolerance range than the universal air tightness tester.The high-pressure air tightness testing equipment is equipped with an ultra-high pressure protection system, a high-pressure resistant sensor, and a high-pressure dedicated execution module. It is mainly resistant to high pressure and can withstand greater pressure than general-purpose models.Hirays high-pressure air tightness testing equipment integrates control unit assembly, sensor unit assembly, test tooling, and execution module.The high-end models are equipped with built-in RS232 and RJ45 communication interfaces, allowing you to develop your own host computer system and monitor remotely. The host computer can automatically read test data and control the product to start testing.The instrument stores test history data internally, and the test data can be traced and queried.The USB expansion interface can be used to export test history records, and can also be used to connect an external barcode scanner. The scanned barcode content and test data can be combined and saved to facilitate data management.

2. Specifications of high-voltage testing instruments

Test pressure: 0～1000Kpa

Test accuracy:±1pa

Gas source: 0.4~1200Kpa

Pressure adjustment accuracy: 0.01Kpa

Working environment: temperature -20～40℃, humidity 25%～65%

Power supply: AC 220V

3. Testing principle

Use a certain pressure and a certain volume of compressed air to inflate the product. If the product has an inflation hole, supply air directly to the product's inflation hole. After charging for a certain period of time, cut off the air supply, and use the pressure sensor inside the instrument to monitor the pressure changes after the product is inflated. If the product does not have an inflation hole, design a mold to wrap the product, and then quantitatively inflate the product surface through the mold, cut off the air source, and use the pressure sensor in the internal instrument to monitor the pressure changes after the product is inflated. The test is as follows:

4. Test method

First determine the test standards. For example, deep-water cameras require IP waterproof level testing and IP67 protection standards.This is an international standard test requirement. The test method is relatively mature and I will not introduce it in detail. Currently, most of the high-pressure air tightness tests are non-standard customization. The test requirements are determined by the customer. The test standards need to be based on the product's usage environment and sealing requirements. The product characteristics must pass experimental tests and the test data can be analyzed to obtain the test standards.The conventional testing method is to inflate the product, cut off the air pressure after it reaches a specified pressure, and then detect the air pressure inside the product. The detection data is collected and analyzed by a high-precision leak detection system to calculate the leakage amount and obtain the leakage value.Compare the leakage value with the standard value to determine whether it is qualified.

5. This sealing testing equipment can also test the IP protection level and waterproofing level of cameras, wires, home appliances, mobile phones, speakers and other products, as well as air tightness testing and sealing testing.

Cases of some customers using air tightness testing equipment