Temperature Chamber

• What are the performance of high and low temperature shock test chamber?

  Jun 14, 2025

    The high and low-temperature impact test chamber is designed for reliability testing of industrial products under both high and low temperatures. It is used to evaluate the performance of components and materials in industries such as electronics, automotive, aerospace, shipbuilding, and weaponry, as well as in higher education and research institutions, under alternating cycles of high and low temperatures. The main features include: Excellent Conductivity: The alloy cable, made by adding rare earth elements and copper, iron, silicon, and other elements from China, undergoes special processing to achieve a conductivity 62% higher than that of copper. After this process, the cross-sectional area of the alloy conductor is increased by 1.28 to 1.5 times, making the cable's current-carrying capacity and voltage drop comparable to those of copper cables, effectively replacing copper with new alloy materials. Superior Mechanical Properties: Compared to copper cables, the rebound performance of the high and low-temperature impact test chamber is 40% lower, and its flexibility is 25% higher. It also has excellent bending properties, allowing for a much smaller installation radius compared to copper cables, making it easier to install and connect terminals. The special formulation and heat treatment process significantly reduce the creep of the conductor under heat and pressure, ensuring that the electrical connections of the alloy cable are as stable as those of copper cables. Reliable Safety Performance: The high and low-temperature impact test chamber has been rigorously certified by UL in the United States and has been in use for 40 years in countries like the United States, Canada, and Mexico without any issues. Based on advanced American technology, the test chamber has been tested and inspected by multiple domestic institutions, ensuring its reliable safety. Economic Performance Savings: When achieving the same electrical performance, the direct procurement cost of high and low-temperature impact test chambers is 20% to 30% lower than that of copper cables. Since alloy cables are only half the weight of copper cables and have excellent mechanical properties, using alloy cables can reduce transportation and installation costs by more than 20% in general buildings and over 40% in large-span buildings. Using high and low-temperature impact test chambers will have an immeasurable impact on building a resource-efficient society. Excellent Anti-corrosion Performance: When exposed to air at high temperatures, alloy cables immediately form a dense oxide layer that is highly resistant to various forms of corrosion, making them suitable for harsh environments. Additionally, the optimized internal structure of the alloy conductor and the use of silane cross-linked polyethylene insulation material extend the service life of alloy cables by more than 10 years compared to copper cables.                      

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• Maintenance methods for constant temperature and humidity test chambers

  Jun 13, 2025

  1. Dust adhering to the condenser can cause the high-pressure switch of the compressor to trip and issue false alarms. Therefore, dust attached to the cooling grid of the condenser can be removed with a vacuum cleaner every month, or by using a hard-bristled brush after turning on the machine, or by blowing it off with a high-pressure air nozzle.2. The area around the machine and the ground at the bottom should be kept clean at all times to prevent a large amount of dust from being sucked into the unit or reducing equipment performance and causing accidents.3. When opening or closing the door or taking samples from the test chamber, do not touch the sealing strip on the door.4. The core of the constant temperature and humidity test chamber - the refrigeration system should be inspected once a year. Check for leaks in the copper tubes and at each joint and interface. If there are any, inform the manufacturer.5. The humidifier and water tank should be cleaned frequently to avoid scaling and affecting steam emission. Clean them after each test. Timely descaling helps extend the lifespan of the humidification tube and ensures smooth water flow. When cleaning, use a copper brush and then rinse with water.6. The distribution room should be cleaned and inspected more than once a year. Loose nodes can put the entire equipment in a dangerous working state, burn out components, cause fires, alarms, and endanger lives.7. The dry and wet bulb wicks should be checked frequently. Replace them promptly if they become hard or dirty. It is recommended to replace them every three months.8. Inspection and maintenance of the water circuit. The water pipes in the water circuit are prone to clogging and leakage. Regularly check for leaks or blockages. If found, remove them promptly or notify the manufacturer.

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• Two reasons why the constant temperature and humidity test chamber does not refrigerate

  Jun 10, 2025

  One reason 1. Because the temperature of the constant temperature and humidity test chamber cannot be maintained, observe whether the refrigeration compressor can start when the test chamber is running, and whether the compressor can start when the environmental test equipment is running, indicating that the circuit from the main power supply to each compressor is normal and the electrical system has no problem. 2. There is no fault in the electrical system. Continue to check the refrigeration system. First, check whether the exhaust and suction pressure of the low temperature (R23) compressor of the two sets of refrigeration units are lower than the normal value, and whether the suction pressure is in the vacuum state, indicating that the refrigeration dose of the main refrigeration unit is insufficient. 3. Touch the exhaust pipe and suction pipe of the R23 compressor with your hand, and find that the temperature of the exhaust pipe is not high, and the temperature of the suction pipe is not low (no frost), which also indicates that the R23 refrigerant in the host is insufficient. Another reason: 1. The cause of the failure has not been determined, and further confirmation is made in combination with the control process of the constant temperature and humidity test chamber. The test chamber has two sets of refrigeration units. One is the main unit, and the other is the auxiliary unit. When the cooling rate is high, both units operate simultaneously at the beginning of the temperature maintenance phase. Once the temperature stabilizes, the auxiliary unit stops, and the main unit maintains the temperature. If the R23 refrigerant leaks from the main unit, its cooling efficiency will be significantly reduced. During the cooling process, both units operate simultaneously, ensuring stable temperatures and a gradual decrease in cooling rate. In the insulation phase, if the auxiliary unit stops, the main unit loses its cooling function, causing the air inside the test chamber to rise slowly. When the temperature reaches a certain level, the control system activates the auxiliary unit to cool down, after which the auxiliary unit stops again. The cause of the production failure has been identified as a low-temperature (R23) refrigerant leak from the main unit. Upon checking the refrigeration system for leaks, a crack was found on the valve stem of the hot gas bypass solenoid valve, measuring about 1cm in length. After replacing the solenoid valve and recharging the system with refrigerant, the system returned to normal operation. This analysis shows that the fault diagnosis follows a step-by-step approach, starting from the 'external' aspects and moving inward, then focusing on 'electricity' and finally on 'cooling.' A thorough understanding of the test chamber's principles and operational processes is essential for accurate fault diagnosis.

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• key points of choosing high and low temperature test chamber

  Jun 06, 2025

  Eight key points of choosing high and low temperature test chamber: 1.No matter whether it is selected for high and low temperature test chamber or other test equipment, it should meet the temperature conditions specified in the test requirements; 2.To ensure the uniformity of temperature in the test chamber, forced air circulation or non-forced air circulation mode can be selected according to the heat dissipation of samples; 3.The heating or cooling system of the high and low temperature test chamber shall have no effect on the samples； 4.The test chamber should be convenient for the relevant sample rack to place samples, and the sample rack will not change its mechanical properties due to high and low temperature changes; 5. High and low temperature test chamber should have protective measures. For example: there are observation window and lighting, power disconnection, over-temperature protection, various alarm devices; 6. Whether there is remote monitoring function according to customer requirements; 7. The test chamber must be equipped with automatic counter, indicator light and recording equipment, automatic shutdown and other instrument devices when carrying out the cyclic test, and it must have good recording and display functions; 8.According to the sample temperature, there are two measurement methods: upper wind and lower wind sensor temperature. The position and control mode of temperature and humidity control sensor in the high and low temperature test chamber can be selected according to the customer's product test requirements to select the appropriate equipment.  

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• ALL ABOUT TEMPERATURE CHAMBERS: WHAT ARE THEY & HOW DO THEY WORK?

  Mar 03, 2025

  Lab-companion, whom we committed to delivering high-quality environmental testing equipment that serves the diverse needs of various industries. As industry leaders, we offer a range of products that ensure reliable testing and quality assurance for your operations.   Our thermal chambers can operate within a temperature range of 0°C to + 200°C and a humidity range of 5% to 98% RH. These chambers provide stable, long-term test conditions, making them compliant with the ICH Q1A guideline and ideal for a multitude of applications.   Learn more about thermal chambers below and how they can help ensure longevity and reliability for all your testing needs.   WHAT ARE TEMPERATURE CHAMBERS? Temperature Chambers, often interchangeably referred to as Thermal Chambers, are specialized enclosures designed to create controlled thermal environments. These chambers enable precise temperature simulations ranging from extreme cold to elevated heat to provide a stable setting where researchers can test products or materials for their resilience, durability, and overall performance. The role of temperature chambers is pivotal in research and development phases across industries. Temperature chambers subject a product to various thermal conditions it is likely to encounter in the real world. This simulative testing is essential to quality assurance processes, ensuring that products meet the safety and performance standards required. By replicating various temperature scenarios, temperature chambers allow manufacturers and researchers to identify potential design flaws early, thus saving both time and resources in the long run.   HOW DO THERMAL CHAMBERS WORK? A thermal chamber is a complex assembly of various components that create a controlled thermal environment. At its core are heating and cooling systems that can generate the required temperatures. These systems often use electric heaters for heating and a combination of compressors and refrigerants for cooling. Insulation is critical to maintaining the chamber’s internal environment. Specialized materials help ensure that temperature changes are well-contained. Airflow management is also key; fans and ducts circulate the air to create uniform conditions throughout the chamber. The “brains” of a thermal chamber are its controls and sensors. These are responsible for monitoring the temperature and ensuring it remains within set parameters. Many thermal chambers utilize PID (Proportional-Integral-Derivative) controllers to maintain temperature accuracy. PID controllers continuously calculate the difference between the desired and current temperatures, making real-time adjustments to the heating and cooling systems to keep the temperature within a predefined range. All these components come together to power a system that can simulate a wide range of temperature conditions, making thermal chambers invaluable tools in product development and quality assurance processes.   TEMPERATURE CHAMBERS: INDUSTRIES AND APPLICATIONS Temperature or thermal chambers are versatile tools that find applications across numerous industries. Their role in simulating various temperature conditions makes them indispensable for research, development, and quality assurance. AUTOMOTIVE INDUSTRY In the automotive sector, thermal chambers test components like engines, batteries, and HVAC systems. These tests help manufacturers ensure that vehicles can withstand extreme weather conditions, be it the cold of a frigid winter or the heat of a scorching desert. ELECTRONICS INDUSTRY For electronics, thermal chambers help ensure that devices like smartphones, laptops, and other gadgets operate effectively across various temperatures. For example, humidity condition tests are crucial for consumer satisfaction and safety, ensuring that devices won’t fail when exposed to extreme conditions. MEDICAL/PHARMACEUTICAL INDUSTRY In the medical and pharmaceutical sectors, thermal chambers are essential for testing the stability and shelf-life of drugs and the reliability of medical devices. From vaccines to pacemakers, stability testing ensures these critical products operate safely and efficiently. AEROSPACE INDUSTRY The aerospace sector often utilizes thermal chambers to test components that will endure extreme conditions in space or high-altitude flight. Aerospace manufacturers must test everything from materials used in aircraft bodies to the electronics in satellite systems to ensure resilience, reliability, and safety.   TYPES OF TESTS CONDUCTED IN THERMAL CHAMBERS Thermal chambers are highly versatile and capable of performing an array of tests that simulate different environmental conditions. Some of the most common tests include: Thermal Cycling: This test exposes the subject to various temperatures, oscillating between cold and hot conditions, to assess its resilience and pinpoint any potential weaknesses. Thermal Shock: Here, the product is subjected to abrupt temperature changes to evaluate its ability to withstand sudden temperature fluctuations, a frequent cause of failure for numerous devices. High-Temperature Testing: This test assesses the subject’s ability to function in extremely high temperatures, often for extended periods. Low-Temperature Testing: This test evaluates how well a product can function at cold temperatures, often freezing or below. Temperature Humidity Testing: This test combines both temperature and humidity variables. While thermal chambers mainly focus on temperature conditions, they can often incorporate humidity settings to some extent. This is where they differ from humidity chambers, which primarily control moisture levels. If you’re looking for a chamber that controls temperature and humidity, Lab-companion offers specialized chambers that provide the best of both worlds.   EXPLORE LAB-COMPANION’S TEMPERATURE CHAMBERS When it comes to reliability and efficiency, our product catalog stands out for several compelling reasons: Accelerated Testing: With advanced heating and cooling systems, our chambers are designed for rapid temperature cycling, allowing for quicker test completion without compromising the accuracy of results. Reliable Results: The chambers are equipped with cutting-edge sensors and controls, ensuring that you receive consistent and reliable data throughout the testing process. Cost-Efficiency: Investing in a high-quality temperature chamber like those offered by us can significantly reduce long-term testing costs. Their durability and low maintenance requirements make them a cost-effective choice for any organization. Customizable Settings: Lab-companion offers a high degree of customization, allowing you to tailor the testing environment according to the specific needs of your product, further enhancing the accuracy of your tests.   Understanding the ins and outs of temperature chambers is essential for anyone involved in product development, research, or quality assurance across various industries. These chambers play a crucial role in simulating different environmental conditions, enabling organizations to rigorously test their products for safety, reliability, and durability. From automotive and electronics to aerospace and pharmaceuticals, the applications are as diverse as they are crucial. If you’re looking to elevate your testing processes, you can’t afford to overlook the value of a top-tier temperature chamber. Contact us at the bottom of the page for more information.    

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