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• Constant Temperature and Humidity Test Chamber, High and Low Temperature Alternating Humidity Test Chamber: Differences Between Humidification and Dehumidification

  Mar 10, 2025

  To achieve the desired test conditions in a constant temperature and humidity test chamber, it is inevitable to perform humidification and dehumidification operations. This article analyzes the various methods commonly used in Labcompanion constant temperature and humidity test chambers, highlighting their respective advantages, disadvantages, and recommended conditions for use. Humidity can be expressed in many ways. For test equipment, relative humidity is the most commonly used concept. Relative humidity is defined as the ratio of the partial pressure of water vapor in the air to the saturation vapor pressure of water at the same temperature, expressed as a percentage. From the properties of water vapor saturation pressure, it is known that the saturation pressure of water vapor is solely a function of temperature and is independent of the air pressure in which the water vapor exists. Through extensive experimentation and data organization, the relationship between water vapor saturation pressure and temperature has been established. Among these, the Goff-Gratch equation is widely adopted in engineering and metrology and is currently used by meteorological departments to compile humidity reference tables. Humidification Process   Humidification essentially involves increasing the partial pressure of water vapor. The earliest method of humidification was to spray water onto the chamber walls, controlling the water temperature to regulate the surface saturation pressure. The water on the chamber walls forms a large surface area, through which water vapor diffuses into the chamber, increasing the relative humidity inside. This method emerged in the 1950s.   At that time, humidity control was primarily achieved using mercury contact conductivity meters for simple on-off regulation. However, this method was poorly suited for controlling the temperature of large, lag-prone water tanks, resulting in long transition processes that could not meet the demands of alternating humidity tests requiring rapid humidification. More importantly, spraying water onto the chamber walls inevitably led to water droplets falling on the test samples, causing varying degrees of contamination. Additionally, this method posed certain requirements for drainage within the chamber.   This method was soon replaced by steam humidification and shallow water pan humidification. However, it still has some advantages. Although the control transition process is lengthy, the humidity fluctuations are minimal once the system stabilizes, making it suitable for constant humidity tests. Furthermore, during the humidification process, the water vapor does not overheat, thus avoiding the addition of extra heat to the system. Additionally, when the spray water temperature is controlled to be lower than the required test temperature, the spray water can act as a dehumidifier.   Development of Humidification Methods   With the evolution of humidity testing from constant humidity to alternating humidity, there arose a need for faster humidification response capabilities. Spray humidification could no longer meet these demands, leading to the widespread adoption and development of steam humidification and shallow water pan humidification methods.   Steam Humidification   Steam humidification involves injecting steam directly into the test chamber. This method offers rapid response times and precise control over humidity levels, making it ideal for alternating humidity tests. However, it requires a reliable steam source and can introduce additional heat into the system, which may need to be compensated for in temperature-sensitive tests.   Shallow Water Pan Humidification   Shallow water pan humidification uses a heated water pan to evaporate water into the chamber. This method provides a stable and consistent humidity level and is relatively simple to implement. However, it may have slower response times compared to steam humidification and requires regular maintenance to prevent scaling and contamination.   Dehumidification Process   Dehumidification is the process of reducing the partial pressure of water vapor in the chamber. This can be achieved through cooling, adsorption, or condensation methods. Cooling dehumidification involves lowering the temperature of the chamber to condense water vapor, which is then removed. Adsorption dehumidification uses desiccants to absorb moisture from the air, while condensation dehumidification relies on cooling coils to condense and remove water vapor.   Conclusion   In summary, the choice of humidification and dehumidification methods in constant temperature and humidity test chambers depends on the specific requirements of the tests being conducted. While older methods like spray humidification have their advantages, modern techniques such as steam humidification and shallow water pan humidification offer greater control and faster response times, making them more suitable for advanced testing needs. Understanding the principles and trade-offs of each method is crucial for optimizing test chamber performance and ensuring accurate and reliable results.

  hot Tags : Constant Temperature and Humidity Test Chamber Humidity Control test chamber Alternating Humidity Test Chamber Suitable Conditions for different chambers Dehumidification Methods for chambers

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• Pharmaceutical Stability Testing Guidelines

  Mar 08, 2025

  Introduction:To ensure the quality of pharmaceutical products, stability testing must be conducted to estimate their shelf life and storage conditions. Stability testing primarily investigates the impact of environmental factors such as temperature, humidity, and light on the quality of pharmaceuticals over time. By studying the degradation curve of the product, the effective shelf life can be determined, ensuring the efficacy and safety of the drug during its use.     Storage Conditions for Pharmaceuticals General Storage Conditions Test Type Storage Conditions(Note 2) Long-term Testing 25°C ± 2°C / 60% ± 5% RH or 30°C ± 2°C / 65% ± 5% RH Accelerated Testing 40°C ± 2°C / 75% ± 5% RH Intermediate Testing (Note 1) 30°C ± 2°C / 65% ± 5% RH   Note 1: If the long-term testing condition is already set at 30°C ± 2°C / 65% ± 5% RH, intermediate testing is not required. However, if the long-term condition is 25°C ± 2°C / 60% ± 5% RH and significant changes are observed during accelerated testing, intermediate testing should be added. The evaluation should be based on the criteria for "significant changes." Note 2: For impermeable containers such as glass ampoules, humidity conditions may be exempt unless otherwise specified. However, all test items specified in the stability testing protocol must still be performed for intermediate testing. Accelerated testing data must cover at least six months, while intermediate and long-term stability testing must cover a minimum of twelve months.         Storage in Refrigerators Test Type Storage Conditions Long-term Testing 5°C ± 3°C Accelerated Testing 25°C ± 2°C / 60% ± 5% RH Storage in Freezers Test Type Storage Conditions Long-term Testing -20°C ± 5°C Accelerated Testing 5°C ± 3°C     Stability Testing for Formulations in Semi-Permeable Containers For formulations containing water or solvents that may experience solvent loss, stability testing should be conducted under low relative humidity (RH) conditions when stored in semi-permeable containers. Long-term or intermediate testing should be performed for 12 months, and accelerated testing for 6 months, to demonstrate that the product can withstand low RH environments. Test Type Storage Conditions Long-term Testing 25°C ± 2°C / 40% ± 5% RH or 30°C ± 2°C / 35% ± 5% RH Accelerated Testing 40°C ± 2°C / ≤25% RH Intermediate Testing (Note 1) 30°C ± 2°C / 35% ± 5% RH   Note 1: If the long-term testing condition is set at 30°C ± 2°C / 35% ± 5% RH, intermediate testing is not required. Calculation of Water Loss Rate at 40°C The following table provides the water loss rate ratio at 40°C under different relative humidity conditions: Substitute RH (A) Reference RH (R) Water Loss Rate Ratio ([1-R]/[1-A]) 60% RH 25% RH 1.9 60% RH 40% RH 1.5 65% RH 35% RH 1.9 75% RH 25% RH 3.0 Explanation: For aqueous pharmaceuticals stored in semi-permeable containers, the water loss rate at 25% RH is three times that at 75% RH.     This document provides a comprehensive framework for conducting stability testing under various storage conditions to ensure the quality, efficacy, and safety of pharmaceutical products throughout their shelf life.   These experiments can be achieved through our high and low temperature humid heat test chamber, more customized requirements please contact us.

  hot Tags : Pharmaceutical Stability Testing Chamber medicine storage test chamber Stability Evaluation Test Chamber Pharmaceutical Quality Test Chamber Drug Temperature Test Chamber

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• Introduction to Solar Simulation Irradiation Test Chamber

  Mar 07, 2025

  The Solar Simulation Irradiation Test Chamber, also known as the "sunlight radiation protection test device," is categorized into three types based on test standards and methods: air-cooled xenon lamp (LP/SN-500), water-cooled xenon lamp (LP/SN-500), and benchtop xenon lamp (TXE). The differences among them lie in test temperature, humidity, accuracy, duration, etc. It is an indispensable testing instrument in the series of aging test chambers.   The test chamber utilizes an artificial light source combined with G7 OUTDOOR filters to adjust the system's light source, simulating the radiation found in natural sunlight, thereby meeting the requirements for solar simulators as stipulated in IEC 61646. This system light source is employed to conduct light aging tests on solar cell modules in accordance with IEC 61646 standards. During the testing, the temperature on the back of the modules must be maintained at a constant level between 50±10°C. The chamber is equipped with automatic temperature monitoring capabilities and a radiometer to control the light irradiance, ensuring it remains stable at the specified intensity, while also controlling the duration of the test.   Within the solar simulation irradiation test chamber, the period of ultraviolet (UV) light cycling typically shows that photochemical reactions are not sensitive to temperature. However, the rate of any subsequent reactions is highly dependent on the temperature level. These reaction rates increase as the temperature rises. Therefore, it is crucial to control the temperature during UV exposure. Additionally, it is essential to ensure that the temperature used in accelerated aging tests matches the highest temperature that materials would experience when directly exposed to sunlight. In the solar simulation irradiation test chamber, the UV exposure temperature can be set at any point between 50°C and 80°C, depending on the irradiance and ambient temperature. The UV exposure temperature is regulated by a sensitive temperature controller and a blower system, which ensures excellent temperature uniformity within the test chamber.   This sophisticated control over temperature and irradiance not only enhances the accuracy and reliability of the aging tests but also ensures that the results are consistent with real-world conditions, through this Solar Simulation Irradiation Test Chamber, which can provide valuable data for the development and improvement of solar cell technologies.

  hot Tags : Xenon Lamp Weathering Test Chamber UV aging test chamber Accelerated Weathering Test Chamber Solar Simulation Irradiation Test Chamber Solar Simulation Test Chamber

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• Overview and Features of UV Aging Test Chamber

  Mar 06, 2025

  This product is designed for the fluorescent ultraviolet (UV) lamp method in laboratory light source exposure testing of various materials. It is primarily used to evaluate the changes in materials when exposed to outdoor conditions, as well as for durability testing of new material formulations and products.   This UV Aging Test Chamber utilizes fluorescent UV lamps that optimally simulate the UV spectrum of sunlight. Combined with temperature and humidity control devices, it replicates the effects of sunlight (UV spectrum), high temperature, high humidity, condensation, and dark cycles, which cause material damage such as discoloration, loss of brightness, reduced strength, cracking, peeling, chalking, and oxidation. Additionally, the synergistic effect of UV light and moisture weakens or nullifies the material's resistance to light or moisture, making it widely applicable for assessing the weather resistance of materials. This test chamber offers the best simulation of sunlight's UV spectrum, low maintenance and operational costs, ease of use, and high automation with programmable controllers for automatic test cycle operation. It also features excellent lamp stability and high reproducibility of test results.   The humidity system consists of a water tank and a humidification system. Through the mechanism of moisture condensation, the exposed surface of the sample is wetted, simulating rain, high humidity, and condensation, which, in conjunction with UV light and dark cycles, creates an optimal testing environment. The chamber is equipped with safety protection systems, including water shortage prevention, dry burn protection, over-temperature protection, short-circuit protection, and overload protection, located on the electrical control panel and inside the electrical control cabinet. Upon entering an alarm state, the equipment automatically cuts off the power to the working system, halts operation, and emits an audible alert to ensure the safety of both the equipment and the operator.

  hot Tags : UV aging test chamber Fluorescent Ultraviolet Lamp UV Spectrum Simulation Accelerated Weathering Test Chamber

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• Ultraviolet Light Accelerated Aging Test chamber: Humid Condensation Environment and Water Spray System

  Mar 05, 2025

  In many outdoor environments, materials can be exposed to humidity for up to 12 hours a day. Research shows that the main factor causing this outdoor humidity is dew, rather than rainwater. The Accelerated Aging Test chamber simulates the outdoor humid erosion through its unique condensation function. During the condensation cycle of the test, the water in the reservoir at the bottom   of the test chamber is heated to generate hot steam, which fills the entire test chamber. The hot steam maintains the relative humidity in the test chamber at 100% and keeps a relatively high temperature. The sample is fixed on the side wall of the test chamber, so that the test surface of the sample is exposed to the ambient air inside the test chamber. The outer side of the sample is exposed to the natural environment, which has a cooling effect, resulting in a temperature difference between the inner and outer surfaces of the sample. This temperature difference leads to the continuous generation of condensed liquid water on the test surface of the sample throughout the condensation cycle.   Since the exposure time to humidity during outdoor exposure can be as long as more than ten hours a day, a typical condensation cycle generally lasts for several hours. The Accelerated Aging Tester provides two methods for simulating humidity. The most widely used method is the condensation method, which is the best way to simulate outdoor humid erosion. All Accelerated Aging Tester models can run the condensation cycle. Because some application conditions also require the use of water spray to achieve the actual effect, some models can run both the condensation cycle and the water spray cycle. For certain applications, water spray can better simulate the final usage environmental conditions. Water spray is very effective in simulating the thermal shock or mechanical erosion caused by sudden temperature changes and the scouring of rainwater. Under certain actual application conditions, for example, in the sunlight, when the accumulated heat dissipates rapidly due to a sudden shower, the temperature of the material will change sharply, resulting in thermal shock, which is a test for many materials. The water spray of the chamber can simulate thermal shock and/or stress corrosion. The spray system has 12 nozzles, with 6 nozzles on each side of the test chamber. The spray system can run for a few minutes and then be turned off. This short period of water spraying can quickly cool the sample, creating the conditions for thermal shock. 

  hot Tags : Uv test chamber Ultraviolet Light Accelerated Aging Test chamber moist test chamber natural Env. test chamber

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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.    

  hot Tags : thermal chamber temperature chamber Environmental Testing Chamber Customizable chamber humidity chamber

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• Uneven Temperature Distribution in High and Low Temperature Humid Test Chambers

  Mar 01, 2025

  The High and Low Temperature Humid Test Chambers is the main equipment in temperature and humidity environment testing, mainly used for evaluating the temperature and humidity tolerance of products, so as to ensure that our products can work and operate normally under any environmental conditions. However, if the temperature uniformity exceeds the allowable deviation range during environmental testing in the Chambers, the data obtained from the test is unreliable and cannot be used as the ultimate tolerance for high and low temperature testing of materials. So what are the reasons that can cause temperature uniformity to exceed the allowable deviation range?     1. The differences test objects in the High and Low Temperature Humid Test Chamber: If test samples that to a great extent affect the overall camber’s internal heat convection, it will inevitably affect the uniformity of internal sample’s temperature. For example, if LED lighting products are test, the products themselves emit light and heat, becoming a thermal load, which will has a significant impact on temperature uniformity.   2.  The volume of the tested object: If the volume of the test object is too large, or the placing position in the chamber is inappropriate, it will obstruct the air convection inside and also cause significant temperature uniformity deviation. For Placing the test product next to the air duct seriously affects the circulation of air, and of course, the uniformity of temperature will be greatly affected.     3. The internal structure design of the chamber: This aspect is mainly reflected in sheet metal design and processing, such as the design of air ducts, the placement of heating pipes, and the size of fan power. All of these will affect the temperature uniformity inside the camber.    4. Design of the camber’s inner wall: Due to the different structures about the inner wall of the test chamber, the temperature of the inner wall will also be uneven, which will affect the heat convection inside the working chamber and cause deviation in the internal temperature uniformity.     5. The six sides of the camber have uneven heat dissipation: Due to the different heat transfer coefficients on the front, back, left, right, top, and bottom surfaces of the camber’s wall, some sides have threading holes, others have testing holes, etc., which will cause local heat dissipation and transfer, resulting in uneven temperature distribution of the camber and uneven radiative convective heat transfer on the wall, final affecting temperature uniformity.     6. The leakproofness of camber’s door: The sealing of the camber and door is not strict, for example, the sealing strip is not customized and has seams between door and wall, the door will leaks the air, which is going to affects the temperature uniformity of the hole camber.     In summary, those may the culprit affected the temperature uniformity inside the test chamber, we suggest that you can investigate from these aspects one by one, which will surely solve your confusion and difficulties.  

  hot Tags : High and Low Temperature Humid Test Chambers Uneven Temperature Distribution in Camber safe of chamber Test Chamber

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• Vacuum First, Then Heat: Proper Drying Oven Operation

  Feb 28, 2025

  Why Should You Evacuate Before Heating in a Vacuum Drying Oven？   1) Protect the Vacuum Pump： If you heat the oven before evacuating, the heated air will be drawn out by the vacuum pump. This process transfers heat to the pump, potentially causing it to overheat. Overheating can reduce the efficiency of the vacuum pump and may even damage it.   2) Preventing Damage to the Vacuum Gauge: If heating the oven first, heated air would directed toward the Vacuum Gauge and cause this instrument to overheat. If the temperature exceeds the gauge's operational limits, it may lead to inaccurate readings or permanent damage.   3)Avoiding Safety Hazards: The tested material is placed in the vacuum chamber that can remove extracted gases from the material. If the tested material is heated first, the gas will expand when it encounters heat. Due to the excellent sealing of the vacuum chamber, the immense pressure generated by the expanding gas could cause the tempered glass of the observation window to shatter.   The correct procedure is to evacuate air first and then heat. If the vacuum level drops after reaching the desired temperature, you can briefly re-evacuate. This method helps extend the lifespan of the equipment.   Conclusion: To ensure safety, maintain equipment efficiency, and prolong the lifespan of vacuum drying oven, always follow the correct procedure: evacuate air first, then heat. This simple step can prevent potential hazards and costly damages.  

  hot Tags : vacuum oven Drying Oven safety for vacuum drying oven high temperature shock

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• What is a Temperature Forcing System about Dragon

  Feb 27, 2025

  We have cooperated with the German company - Froilabo and brought in the dragon because it can control the temperature like the dragon in the fantasy story. Dragon, A high-precision temperature forcing system that can rapidly heat and cool samples to determine their durability and resistance against precise thermal environments.   In this blog discover what a temperature forcing system is, and how our Dragon can help you by providing precise thermal testing for a wide variety of applications.     Key points:   A temperature forcing system is used to test a samples resilience and durability under different temperature conditions. Thermal testing is crucial to ensure products are safe to use and meet required safety standards and regulations. A temperature forcing system is suitable for a wide variety of applications, which includes heating electronic components, electronic characterization, and performing climatic simulations. Dragon is the perfect solution for all your thermal testing needs, and features high performance and accuracy at all steps of analysis.   What is a temperature forcing system? A temperature forcing system is used to evaluate a samples performance under different temperature conditions. By subjecting samples to rapid temperature changes, you can test them for their resilience and durability.   These systems are crucial for several reasons:   Improve safety: By subjecting devices to rapid temperature changes, you can ensure they meet your required safety standards and regulations. Efficient product development: By testing different components early in the design and development phase, you can identify any potential issues early and rectify it quickly. Assess reliability and performance: By testing your samples performance you can ensure your devices can withstand extreme temperatures.   How does a temperature forcing system work? A temperature forcing system works by using a direct temperature-controlled stream of hot or cold air to provide a precise thermal environment for your samples. The Dragon provides a temperature range from -70oC to +250oC, to ensure sample function and viability at a wide range of temperatures.     Do I need a temperature forcing system? Anyone who requires precise thermal testing would benefit from a temperature forcing system, and with Dragon it couldn’t be easier. All you have to do is create a method and Dragon does the rest.   In many industries, it’s essential to characterize and verify product performance when subjected to temperature variations. Dragon provides the perfect solution – our versatile and stable thermal unit is perfect for a wide range of applications.   Applications of the Dragon include:   Heating electronic components Heating printed circuit boards Performing climatic simulations Electronic characterization Temperature cycling and targeted freezing applications   Discover the Dragon, the one stop solution for all your thermal testing needs:   Excellent temperature stability: Delivering precision at every step of your testing, with a temperature range from -70oC to +250o Rapid temperature changes: Our Dragon effortlessly shifts from -55oC to +125oC in a matter of seconds (something even the mystical dragon can’t yet achieve) Digital connections: Connect your computer to your Dragon for simple method creation and run monitoring. Easy manoeuvring: It can still move with ease using the guide handle and 4 wheels to easily transport to your desired location. Adaptable to your needs: Our versatile product contains an adjustable airflow between 2.2 l/sec and 8.4 l/sec and three different working methods – manual, automatic and programmable. Compliance at every step: Dragon has been tested in accordance to and complies with the European norm in force: EN60068-3-11.   Learn more about the dragon by visiting our dedicated Dragon product page.

  hot Tags : temperature test equipment-Dragon products' temperature test-Dragon temperature forcing system-Dragon thermal testing-Dragon

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• Use conditions of High and Low Temperature and Low Pressure Test Chamber

  Feb 26, 2025

  Condition one: environmental condition　　 1. Temperature: 15 ℃~35 ℃;　　 2. Relative humidity: not exceeding 85%;　　 3. Atmospheric pressure: 80kPa~106kPa 4. There is no strong vibration or corrosive gas around; 5. No direct sunlight exposure or direct radiation from other cold or heat sources; 6. There is no strong airflow around, and when the surrounding air needs to be forced to flow, the airflow should not be directly blown onto the equipment. 7.No magnetic field surrounding of the test chamber that may interference control circuit. 8.There is no high concentration of dust and corrosive substances around.   Condition two: Power supply condition 1. AC Voltage: 220V ± 22V or 380V ± 38V; 2. Frequency: 50Hz ± 0.5Hz.     Usage Conditions three: Water Supply Conditions It is recommended to use tap water or circulating water that meets the following conditions:   1.Water Temperature: Not exceeding 30℃;   2.Water Pressure: 0.1MPa to 0.3MPa;  3.Water Quality: Complies with industrial water standards.     Usage Conditions four: load for test chamber  The test chamber load must simultaneously meet the following conditions:   1. Total Mass of Load: The mass of the load per cubic meter of workspace volume should not exceed 80 kg;   2. Total Volume of Load: The total volume of the load should not exceed 1/5 of the workspace volume;   3. Load Placement: On any cross-section perpendicular to the main airflow direction, the total area of the load should not exceed 1/3 of the workspace cross-sectional area. The load must not obstruct airflow.   

  hot Tags : High and Low Temperature Test Chamber High and Low Temperature and Low Pressure Test Chamber Environmental Test Equipment Chamber Temperature Test Chamber Low Pressure Test Chamber Environmental Monitoring Equipment Chamber

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• Introduction to High-Low Temperature and Low Pressure Test Chamber

  Feb 25, 2025

  The High-Low Temperature and Low Pressure Test Chamber is an experimental instrument for simulating the storage, operation, and transportation reliability on high-altitude, plateau areas climates in the national defense industry, aerospace industry automation components, automotive components, electronic and electrical components, plastics, chemical industry, food industry, pharmaceutical industry, and related products under the single or simultaneous action of high/low temperature and low pressure. It can also conduct electrical performance parameters on test specimens when powered on at the same time. The High-Low Temperature and Low Pressure Test Chamber can perform high temperature, low temperature, altitude (not higher than 30000 meters or 45000 meters above sea level), high/low temperature cycle tests, and temperature altitude comprehensive tests on products (whole machine), components, and materials. During high and low temperature tests, this chamber can be used for testing heat dissipation samples and non heat dissipation samples. For the heat dissipation sample, its heat dissipation power cannot exceed the cooling capacity of the chamber, as the cooling capacity is a dynamic value that varies with temperature points. Main materials of our equipment: Adopting a bipolar rotary vane vacuum pump with high ultimate vacuum degree - ensuring efficient and stable operation of the equipment throughout its entire working range; High strength and high reliability structural design - ensuring the high reliability of the equipment; The inside chamber material is SUS304 stainless steel - with strong corrosion resistance, cold and hot fatigue function, long service life; High density polyurethane foam insulation material - ensuring minimal heat loss; Surface spraying treatment - ensuring the long-lasting anti-corrosion function and appearance life of the equipment; High strength heat-resistant silicone rubber sealing strip - ensures high sealing performance of equipment doors; Multiple optional functions (such as test holes, recorders, water purification systems, etc.) - ensuring users have multiple functions and testing needs; Large area electric anti frost observation window and concealed lighting - providing good observation effect; Environmentally friendly refrigerants - ensure that equipment better meets your environmental protection requirements; *Customizable size/usage indicators/various optional features according to your requirements. Main functions of our equipment: Temperature control: It can achieve temperature constant control and program control; The full process data recorder (optional function) can achieve full process recording and traceability of the experimental process; Each motor is equipped with overcurrent (overheating) protection/heater short-circuit protection to ensure high reliability of air flow and heating during equipment operation; USB interface and Ethernet communication function enable the device's communication and software expansion functions to meet various customer needs; Adopting the internationally popular cooling control mode, the compressor cooling power can be automatically adjusted from 0% to 100%, reducing energy consumption by 30% compared to the traditional heating balance temperature control mode; The key components of refrigeration and electrical control are all made of internationally renowned brand products, which improves and ensures the overall quality of the equipment.

  hot Tags : High-Low Temperature Temperature Test Low Pressure Product's Performance Test Simulate High-Altitude/ Plateau Areas Customization

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• The Introduction of Walk-in Temperature Test Chamber

  Feb 24, 2025

  Walk-in Temperature Test Chamber is a large laboratory that admit operator to walk in it, primarily used for environmental testing. It is commonly used for testing large parts, semi-finished products, and finished products to simulate real-world environmental temperatures, and is widely used in industries such as electrical engineering, electrical appliances, instruments, electronics, security, communication, sensors, automation, industrial control, precision machinery, etc. The Walk-in Temperature Test Chamber is equipped with a φ 50mm test hole with a plug on the side of the box. The plug material is low foaming silicone rubber, which can withstand high and low temperatures and has insulation effect. The heater adopts a porcelain frame nickel chromium wire electric heater, which has low thermal inertia and long service life. The instrument outputs a controllable pulse duty cycle PID signal, which is controlled by a solid-state relay to make the control smoother and more reliable. Performance and characteristics of Walk-in Temperature Test Chamber: 1.It has an extremely wide temperature and humidity control range, which can meet various needs for users. By adopting a unique balanced temperature and humidity control method, a safe and precise temperature and humidity environment can be achieved. It has stable and balanced heating and humidification performance, can achieve high-precision temperature and humidity control. 2.Equipped with intelligent temperature regulators, temperature and humidity are displayed using LED digital display. The high and low temperature damp heat test chamber can be optionally equipped with a temperature and humidity recorder. 3. Automatic selection of refrigeration circuit, the automatic control device has the performance of automatically selecting and operating to the refrigeration circuit according to set value of temperature, realizing direct start of the refrigeration machine and direct cooling under high temperature conditions. 4. The inner door is equipped with a large observation window, which facilitates the observation of the test samples’ experimental status. 5. Equipped with advanced safety and protection devices - residual current circuit breaker, over temperature protector, phase loss protector, and water cut-off protector. We can customer High and low temperature test chambers, low temperature test chambers, constant temperature and humidity test chambers, high and low temperature damp heat test chambers, high and low temperature alternating damp heat test chambers, salt spray corrosion test chambers. above test chambers can be customized according to your requirements. Therefore, Walk-in Temperature Test Chamber is suitable for enterprises with high demand on environmental testing and operational space.

  hot Tags : Walk-in Temperature Test Chamber Walk-in Environmental Chamber Large experimental equipment

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