Maintenance cycle
Generally speaking, the maintenance cycle of the Constant Temperature And Humidity Test Chamber fan is recommended to be routinely inspected and maintained every 3-6 months. In the case of frequent use or harsh environment, such as a dusty laboratory, the maintenance cycle should be appropriately shortened to 1-3 months. Routine inspections mainly include checking whether there is dust accumulation on the fan's appearance, whether the blades are deformed or damaged, and whether there is abnormal noise during operation. Deep maintenance should also be performed every 1-2 years, including cleaning the inside of the fan, checking the wear of the motor bearings, and replacing lubricating oil to ensure the stability of the fan's performance and extend its service life.
Impact on temperature uniformity
The fan plays a key role in air circulation in the Constant Temperature And Humidity Test Chamber, which directly affects the uniformity of the temperature in the chamber. If the fan is not properly maintained, too much dust will accumulate on the blades, which will cause the fan's air volume to decrease and the air circulation speed to slow down. In this way, the air heat exchange at different positions in the chamber is insufficient, and uneven temperature is prone to occur, which makes the ambient temperature of the test sample different, thus affecting the accuracy and reliability of the test results. For example, in some electronic component aging tests that require extremely high temperature uniformity, uneven temperature may lead to inconsistent aging of components, affecting the accurate evaluation of component performance.
Impact on humidity control
The operating status of the fan will also affect the humidity control in the test chamber. A properly operating fan can fully mix the air in the chamber, promote the uniform distribution of water vapor, and help accurately control the humidity. However, if the fan fails or is not maintained in time, such as the motor speed drops, the blades deform, etc., it will disrupt the normal flow of air and cause uneven humidity distribution. In some tests that require specific humidity conditions, such as drug stability tests, uneven humidity may cause deviations in the moisture absorption or water loss of drugs, thereby affecting the judgment of drug quality and stability, resulting in errors in test results.
Impact on repeatability of test results
Since the performance of the fan affects the uniformity and stability of temperature and humidity, it will also affect the repeatability of test results. When the fan is well maintained, each test can be carried out in a relatively stable and consistent temperature and humidity environment, and the test results have good repeatability, which is conducive to accurate comparison and analysis of test samples from different batches. On the contrary, if the fan is not maintained in time, the uncertainty of the temperature and humidity environment will increase, the repeatability of the test results will be affected, and it will be difficult to ensure the consistency and comparability of the test data, which will bring risks to the accuracy of the test conclusions and is not conducive to the effective evaluation of product quality and performance.
