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High and Low Temperature Test Chamber, as an important device in environmental reliability testing, functions to simulate various temperature and humidity conditions to evaluate the performance of products in different environments. This article will explore in detail the application fields, testing methods, and standards of the High and Low Temperature Test Chamber, helping you understand the working principles and application value of this critical equipment.
High and Low Temperature Test Chambers are widely used in various industries, especially in electronics, communications, and home appliances. Specific applications include:
Computing
Such as computers, monitors, and other precise instruments, where the stability of these devices in high-temperature environments is particularly important.
Electronics and Communications
Including mobile phones, RF devices, and electronic communication components, ensuring their performance stability under extreme temperatures.
Electrical Appliances
Encompassing home appliances, lighting, and transformers, products must endure diverse environmental conditions to ensure safety and reliability.
Additionally, packaging and transportation equipment also require high and low-temperature testing to verify their durability under various transport and storage conditions.
When using a High and Low Temperature Test Chamber for testing, it is crucial to strictly control the temperature and humidity. The standard testing steps are as follows:
Initial Setting
Set the test chamber temperature to 25℃±3℃, with relative humidity set at 45%-75%. This stage needs to be maintained for 2 to 6 hours to ensure temperature stability.
Humidity Increase
In the final 1 hour, increase the humidity to no less than 95%, while keeping the temperature at 25℃±3℃.
Temperature Cycling
Then start heating, with the chamber temperature rising from 25℃ to 55℃±2℃ within 2.5 to 3 hours. During this process, the relative humidity should be maintained above 90% for the first 15 minutes to ensure sufficient condensation on the surface of the test items.
High Temperature and High Humidity Maintenance
Maintain at 55℃±2℃ in a high temperature and high humidity environment for 12 hours, with the relative humidity maintained at 93±3%.
Cooling Treatment
Next, lower the temperature back to 25℃±3℃, maintaining a certain relative humidity during the cooling process to prevent the product from being affected by sudden temperature drops.
These steps ensure that the High and Low Temperature Test Chamber can effectively simulate extreme environments to evaluate product reliability.
High and Low Temperature Test Chambers cover the following key testing items:
High Temperature Test
Evaluates product adaptability in high-temperature climates, referencing standard IEC 60068-2-2.
Low Temperature Test
Assesses product performance in low-temperature environments, with standard IEC 60068-2-1.
Temperature Shock Test
Evaluates product performance under rapid temperature changes, referring to standard IEC 60068-2-14.
Rapid Temperature Change Test
Aims to assess the product's adaptability to rapid temperature changes, following standard IEC 60068-2-38.
Alternating Humid Heat Test
Applicable to aviation, automotive, and research fields, this test measures product performance under high, low, and humid heat conditions.
When conducting high and low-temperature tests, avoid opening the test chamber door randomly to ensure the accuracy of test results and the safety of the equipment.
High and Low Temperature Test Chambers play a crucial role in environmental reliability testing. Through proper testing methods and stringent standards, the performance of products under different environmental conditions can be effectively evaluated. Whether in the testing of electronic devices, home appliances, or other products, High and Low Temperature Test Chambers offer strong support in ensuring product quality. By thoroughly understanding the working principles and applications of High and Low Temperature Test Chambers, you will be better equipped to tackle challenges in product development and testing.
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