What are the errors of the airtightness tester, and how to correctly select the airtightness tester for sealing, waterproofing, airtightness, and IP protection level testing and identification

How to choose an air tightness tester

nowAir tightness testerThere are many manufacturers with significant price differences, providing users with a wide range of choices. However, how to choose a product that is suitable for their own use requires users to compare and choose based on specific circumstances.

When selecting an instrument, users can repeatedly test the same workpiece at different times to evaluate the instrument\'s repeatability, environmental temperature effects, and thermal stability performance.

The main approaches are as follows:

1. Use the instrument alone for sealing testing, without the need to connect it to other control systems.

2. When the internal volume of the sealing test is greater than 5l, flow type should be selected as much as possible; For the sealing test of workpieces with an internal volume less than 5l, the flow type or pressure drop type can be selected according to the process requirements.

3. When there are many varieties to be tested on the production line, each variety requires different parameters. In this case, users need to choose an airtight detector with wide air pressure function.

4. For workpiece detection with strict requirements for leakage indicators, it is necessary to choose a high-precision and high-quality airtight detector.

5. Due to the use of a dedicated control board, it is important to choose airtighters produced by companies with certain strength and strong survival capabilities. Poor quality detectors have unstable data when repeatedly testing the same workpiece. In addition, there is a significant difference between the detection data after preheating and after working for 1 hour, and there may also be a large difference between the data tested in the morning and afternoon. However, the air tightness detector of Hairui Si does not have this situation because it adopts a precision temperature control system that can communicate with the external temperature and pressure, so there is no factor that affects the accuracy of air tightness and waterproof detection