Airtight testing instruments have a wide range of applications in various industries, such as automobiles, home appliances, medical devices, etc. To ensure the quality and safety of the product, and to ensure the accuracy of the airtightness testing instrument.

1、 The importance of calibrating airtight testing instruments

Airtightness testing instrument is a device used to test the airtightness performance of products or systems. If there are problems with the airtightness testing instrument itself, the accuracy of the test results cannot be guaranteed, which may lead to product failure and even safety hazards. Therefore, regular calibration of airtight detection instruments to ensure their accuracy is of great significance for improving product quality and production efficiency.

2、 Basic principles of calibration for airtight testing instruments

The calibration principle of airtight detection instruments is mainly achieved through comparative methods. During the calibration process, it is necessary to use a standard (usually a known precision airtight detection instrument or gas source) to generate a known pressure value, and then input this pressure value into the airtight detection instrument to be calibrated. Next, compare the difference between the pressure value displayed by the instrument to be calibrated and the pressure value generated by the standard. Adjust the parameters of the instrument to minimize the difference between the two, thereby achieving the calibration of the airtightness detection instrument.

3、 Method for calibrating airtight testing instruments

1. Preparation work

Before calibrating the airtightness testing instrument, preparation work needs to be done. Firstly, ensure that the airtightness testing instrument and standard are in normal working condition. Secondly, prepare the corresponding joints and pipelines to introduce the output pressure of the standard into the airtight detection instrument to be calibrated.

2. Calibration steps

(1) Connect the standard and the airtightness testing instrument to be calibrated, ensuring a secure and leak free connection.

(2) Open the standard, generate a known pressure value, and introduce it into the airtightness detection instrument to be calibrated.

(3) Observe the pressure value displayed on the instrument to be calibrated and record it.

(4) Compare the pressure value displayed by the instrument to be calibrated with the pressure value generated by the standard, and calculate the parameters that need to be adjusted.

(5) According to the calculation results, adjust the parameters of the instrument to be calibrated and repeat steps (2) to (4) until the difference between the two reaches a small value.

(6) Confirm that the airtightness detection instrument has been calibrated, close the standard, and remove the connecting pipeline.

3. Precautions

(1) During the calibration process of the airtight detection instrument, it is necessary to ensure stable environmental conditions such as temperature and humidity to avoid affecting the calibration results.

(2) During the calibration process, it is necessary to strictly follow the user manual of the airtightness testing instrument to ensure correct operation.

(3) Regularly calibrate the airtightness testing instruments to ensure their accuracy.

The calibration of airtight testing instruments is a key step in ensuring their accuracy and precision. By understanding the basic principles and methods of calibrating airtight detection instruments, we can better use and maintain them, thereby improving product quality and production efficiency. At the same time, regular calibration of airtight testing instruments is also an important means for enterprises to ensure product quality and meet consumer needs.

Suzhou Loho Electronic Technology Co., Ltd. specializes in airtightness detectors, airtightness detectors, leak detectors, airtightness leak detectors, airtightness testers and other equipment. They are widely used, have fast detection speed, and are suitable for sealing, waterproofing, airtightness, leakage and other fields. Welcome to inquire by phone: 189-1262-8676