These precision instruments can also experience some common malfunctions during use. Below, we’ll provide a detailed explanation of the failure causes and their corresponding solutions.

Leakage issue

Seal aging is one of the common factors leading to leaks—over time, prolonged use reduces the elasticity of seals, significantly diminishing their sealing performance. Loose connections also remain a major cause of leakage. To prevent these issues, it’s essential to regularly inspect seals and replace them promptly if signs of aging or damage are detected. Additionally, always ensure that all connections are securely tightened before each use to avoid loosening altogether.

Measurement error

Sensor malfunctions can lead to inaccurate measurement data, such as reduced sensitivity or physical damage to the sensor. Additionally, changes in the temperature of the test sample can significantly affect measurement results, as temperature fluctuations may alter the material's physical properties, ultimately impacting the accuracy of sealing performance measurements. To minimize errors, it’s essential to calibrate sensors regularly, ensuring they remain in optimal working condition. During testing, strive to maintain a stable temperature for the sample, preventing temperature variations from interfering with the measurement outcomes.

Does not generate vacuum.

When the sealing tester fails to generate a vacuum, the first step is to check whether the intake air pressure meets the required standard. Insufficient intake pressure could indicate a problem with the air source or a blockage in the supply pipeline. Similarly, a blocked air pathway will prevent vacuum generation, so it’s essential to carefully inspect the air lines, remove any obstructions, and ensure that the airflow remains unimpeded.

Abnormal result

The abnormal result could be caused by incorrect vacuum gauge settings. Before using the leak tester, make sure to set the vacuum gauge parameters accurately according to the manufacturer's instructions. Incorrect vacuum gauge settings may lead to inaccurate or erratic measurement results. Additionally, verify that the measurement circuit is functioning properly to rule out any other factors that might be affecting the outcome.