高温・低温試験室

• Energy-Saving Environmental Test Chamber: Safeguard Your Long-Term Product Costs

  Dec 01, 2025

  For enterprises in manufacturing, electronic technology, and related industries, product reliability testing is a critical quality assurance link. However, the operational costs of environmental test chambers—core testing equipment—are often overlooked. Many businesses focus solely on testing precision during procurement, only to be troubled by high energy bills in long-term use. Our energy-saving environmental test chamber effectively resolves the conflict between "accurate testing" and "cost control," providing comprehensive support for product lifecycle cost management. Core Energy-Saving Feature: Intelligent Refrigeration System Regulation As the primary energy-consuming component of environmental test chambers, the energy regulation technology of the refrigeration system directly determines the equipment’s energy efficiency. On the premise of meeting core technical indicators, this test chamber innovatively integrates multiple energy adjustment measures to achieve intelligent dynamic control of refrigeration capacity. The system precisely regulates evaporation temperature via the controller and links it with a hot gas bypass energy adjustment mechanism, matching refrigeration demand in real time based on the required cooling rate and target temperature range. When approaching the set low temperature, the system automatically reduces refrigeration capacity to avoid temperature overshoot—a common issue in traditional models—ensuring test stability. During the constant temperature phase, it abandons the energy-intensive "hot-cold balance" mode, optimizing energy utilization at the source. Verified in real operating conditions, the energy-saving effect reaches up to 30%, significantly reducing long-term operational costs, especially for enterprises requiring 24/7 continuous operation. Precision & Energy Efficiency: Optimized Heating System Power Control Refined control of the heating system further enhances the equipment’s energy-saving advantages and temperature control precision. The system adopts a synergistic control scheme of temperature controllers and thyristors: the temperature controller collects real-time temperature signals and issues control commands, while thyristors precisely adjust the heater’s power output. When the temperature is far below the set value, thyristors deliver full power for rapid heating. As the temperature gradually approaches the set value, the output power decreases incrementally; once the target temperature is reached, power output stops immediately. This on-demand power distribution mode eliminates energy waste and ensures precise temperature control, providing a stable and reliable temperature environment for tests. For example: When the internal temperature is significantly lower than the set value, thyristors operate at full power, and the heater runs at maximum load to ensure rapid temperature rise. As the temperature nears the target, the thyristor’s output power gradually decreases. Once the target temperature is achieved, the thyristor stops power output immediately, and the heater enters standby mode. This "on-demand power supply" mode eliminates the drawback of "frequent start-stop" in traditional heating systems—avoiding ineffective energy consumption while greatly improving temperature control precision, making it particularly suitable for test scenarios requiring high temperature stability. Dual-System Synergy: Safeguard Enterprise Costs From the refrigeration system’s intelligent energy adjustment to the heating system’s precision power control, our environmental test chamber centers on dual-system collaborative energy-saving technology. While ensuring accurate test data, it maximizes energy cost reduction. Choosing our test chamber not only guarantees product testing quality but also enables scientific management of enterprise operational costs, providing peace of mind throughout your product R&D and production processes. In addition, if your enterprise is seeking a cost-effective environmental test chamber or struggling with high energy consumption from existing equipment, we recommend focusing on our energy-saving model. Let professional equipment protect your product quality while reducing costs and enhancing efficiency for your business.

  ホットタグ : 高温・低温試験室 高温・低温湿度試験室 環境試験室 ウォークイン温度試験室 環境試験室メーカー 環境シミュレーション室

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• Got Your Temperature Test Chamber? Here’s What You Must Do Next!

  Nov 28, 2025

  I. Receipt Inspection  1. Physical Verification Confirm equipment model, specifications, and serial number match the contract/packing list to avoid wrong delivery. Inspect the cabinet, door, and control panel for transportation damage (dents, deformation) and ensure pipelines/wiring are intact without loosening. 2. Accessory & Document Check Required accessories: Power cord, sample shelves, sealing rings, wrenches, and other tools (verify against the packing list). Technical documents: Operation/maintenance manual, calibration certificate, warranty card, and qualification certificate (all mandatory for after-sales service). 3. Abnormal Handling In case of damage or missing items: Immediately take photos (overall equipment, damaged details, packing list), notify the supplier within 24 hours to submit a claim, and sign the "Acceptance Objection Form" for documentation. II. Installation & Deployment (Compliant Installation Ensures Performance) 1. Environment Requirements (Must Meet the Following) Floor: Flat and sturdy, with load-bearing capacity ≥1.2 times the equipment weight (to avoid test errors caused by vibration). Space: ≥30cm ventilation gap around the cabinet; keep away from heat sources, water sources, dust, and strong electromagnetic interference. Power supply: Match the rated voltage (e.g., 380V three-phase five-wire/220V single-phase), grounding resistance ≤4Ω, and equip an independent air switch (power ≥1.2 times the equipment's rated power). Environment: Room temperature 15-35℃, humidity ≤85%RH (no condensation); water-cooled models require pre-connected cooling water circuits meeting specifications. 2. Basic Installation Steps Level the equipment: Adjust anchor bolts and use a level to confirm horizontal alignment (to prevent uneven stress on the refrigeration system). Wiring inspection: Connect the power supply per the manual and ensure correct neutral/grounding connections (a common cause of electrical failures). Consumable check: Confirm refrigerant and lubricating oil (if applicable) are properly filled with no leakage. III. Commissioning (Core: Verify Performance Compliance) 1. First Startup Procedure （1） Recheck power/pipeline connections before power-on; switch on after confirmation. （2）Panel self-test: Ensure the display shows no error codes and buttons/indicators function normally. （3）No-load operation (2-4 hours): Set a common temperature range (e.g., -40℃~85℃) and monitor temperature fluctuation ≤±0.5℃ (meets industrial standards). Check door sealing (no obvious air leakage), operating noise ≤75dB, and normal start/stop of refrigeration/heating systems. 2. Load Verification (Simulate Actual Usage) Place a load equivalent to the test sample (weight/volume ≤80% of the equipment's rated load) without blocking air ducts. Set the target temperature and holding time; record if the heating/cooling rate meets technical parameters (e.g., -40℃~85℃ heating time ≤60 minutes). Alarm test: Simulate power failure, over-temperature, or door-open timeout to confirm timely alarm response (audio-visual alarm + shutdown protection). IV. Emergency Handling & After-Sales Coordination 1. Common Fault Resolution Error codes: Refer to the "Troubleshooting" section in the manual (e.g., E1=Over-temperature, E2=Power abnormality). Sudden failures: (e.g., electric leakage, abnormal noise, refrigeration failure) Immediately cut off power, stop use, and contact the supplier's technical support (do not disassemble independently). 2. After-Sales Support Retain the supplier's after-sales contact (phone + email) and confirm the warranty period (usually 1 year for the whole machine). Maintenance records: Request a "Maintenance Report" after each service and file it for future tracing.

  ホットタグ : 高温・低温試験室 高温・低温湿度試験室 ウォークイン温度試験室 環境試験室メーカー 環境シミュレーション室 温度衝撃試験室

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• Key Differences in Using Environmental Test Chambers Between Summer and Winter

  Nov 26, 2025

  The core difference lies in the impact of ambient temperature and humidity variations on equipment operating efficiency, energy consumption, and test accuracy. Targeted measures for temperature/humidity control, heat dissipation/anti-freezing, and maintenance are required. Specific differences and precautions are as follows: I. Core Difference Comparison Table Dimension Summer Operation Characteristics Winter Operation Characteristics Ambient Conditions High temperature & high humidity (room temp: 30-40℃, RH: 60%-90%) Low temperature & low humidity (room temp: 0-15℃, RH: 30%-60%) Equipment Load High refrigeration system load, prone to overload High heating system load; humidification compensation required for certain models (e.g., temperature-humidity chambers) Impact on Test Accuracy High humidity causes condensation, affecting sensor accuracy Low temperature leads to pipeline freezing; low humidity may reduce stability of humidity tests Energy Consumption High refrigeration energy consumption High heating/humidification energy consumption   II. Season-Specific Precautions (1) Summer Operation: Focus on High Temperature/High Humidity/Overload Prevention 1. Ambient Heat Dissipation Management Reserve ≥50cm ventilation space around the chamber; avoid direct sunlight or proximity to heat sources (e.g., workshop ovens, air conditioner outlets). Ensure laboratory air conditioning operates normally, maintaining room temperature at 25-30℃. If room temp exceeds 35℃, install industrial fans or cooling devices to assist heat dissipation and prevent refrigeration system overload protection triggered by high ambient temperatures. 2. Moisture & Condensation Control Regularly clean chamber door gaskets with a dry cloth to prevent sealant aging and air leakage caused by high humidity. After humidity tests, open the chamber door promptly for ventilation and wipe off condensation to avoid moisture damage to sensors (e.g., humidity sensors). 3. Equipment Operation Protection Avoid prolonged continuous operation of extreme low-temperature tests (e.g., below -40℃). Recommend shutting down for 1 hour after 8 hours of operation to protect the compressor. Periodically inspect refrigeration system radiators (condensers) and remove dust/debris (blow with compressed air monthly) to ensure heat dissipation efficiency. (2) Winter Operation: Focus on Anti-Freezing/Low Humidity/Startup Failure Prevention 1. Ambient Temperature Guarantee Maintain laboratory temperature above 5℃ (strictly follow 10℃ if specified as the minimum operating temperature) to prevent pipeline freezing (e.g., refrigeration capillaries, humidification pipes). For unheated laboratories, install an insulation cover (with ventilation holes reserved) or activate the "preheating mode" (if supported) before testing. 2. Humidification System Maintenance Use distilled water in the humidification tank to avoid pipe blockage from impurity crystallization at low temperatures. Drain water from the humidification tank and pipelines during long-term non-use to prevent freezing-induced component damage. 3. Startup & Operation Specifications In low-temperature environments, activate "standby mode" for 30 minutes preheating before setting test parameters to avoid compressor burnout from excessive startup load. If startup fails (e.g., compressor inactivity), check power voltage (prone to instability during winter peak hours) or contact after-sales to inspect pipeline freezing. 4. Low Humidity Compensation For low-humidity tests (e.g., ≤30% RH), winter dryness may cause rapid humidity. Adjust humidification frequency appropriately and use the "humidity calibration" function to reduce fluctuations. III. General Precautions (All Seasons) Calibrate temperature/humidity sensors quarterly to ensure data accuracy. Clean air filters monthly to maintain airflow circulation. Arrange test samples evenly to avoid blocking internal air ducts and ensure temperature/humidity uniformity. For long-term non-use: Run the chamber for 1 hour monthly in summer (moisture prevention) and drain pipeline water in winter (freezing prevention). By addressing seasonal environmental variations, equipment service life can be extended, and test failures caused by temperature/humidity fluctuations avoided—aligning with the high precision and stability requirements of the industrial test equipment industry.    

  ホットタグ : 高温・低温試験室 高温・低温湿度試験室 環境試験室メーカー 環境シミュレーション室 環境試験室 温度衝撃試験室

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• Differences Between High-Low Temperature Test Chamber and Thermal Shock Chamber

  Nov 26, 2025

  In industrial product reliability testing, high and low temperature test chambers and temperature shock test chambers are core environmental testing equipment, both simulating extreme temperatures to verify product durability. However, they differ fundamentally: the former focuses on gradual temperature-humidity cycles, while the latter on instantaneous thermal shock. Clarifying these differences is key to matching test needs and ensuring data validity. 1. Rate High-Low Temperature Test Chamber: Slow, with a regular rate of 0.7∼1 ℃/min, and rapid versions can reach 5∼15 ℃/min. Thermal Shock Chamber: Abrupt, with instant switching. 2. Structure High-Low Temperature Test Chamber: Single-chamber structure, integrating heating, refrigeration, and humidification functions. Thermal Shock Chamber: Multi-chamber structure, including high-temperature chamber, low-temperature chamber, and test chamber. 3. Temperature Continuity High-Low Temperature Test Chamber: The temperature changes smoothly without any "shock sensation". Thermal Shock Chamber: The temperature changes by leaps and bounds, with a common temperature range of −40∼150℃. 4. Application High-Low Temperature Test Chamber: Suitable for temperature endurance testing of general products such as electronic devices, household appliances, and building materials. Thermal Shock Chamber: Suitable for shock resistance testing of temperature-sensitive products such as automotive electronics, semiconductors, and aerospace components. 5. Core Position & Test Purpose High-Low Temperature Test Chamber: Simulates gradual temperature (and humidity) changes to test product stability under slow thermal variation (e.g., electronic devices’ performance after gradual cooling to -40℃ or heating to 85℃). Thermal Shock Chamber: Simulates abrupt temperature switching (≤30s transition) to test product resistance to extreme thermal shock (e.g., auto parts adapting to drastic day-night temperature changes, aerospace components’ tolerance to sudden high-low temperature shifts). Summary The high and low temperature test chamber is a "slow-paced endurance test", while the temperature shock chamber is a "fast-paced explosive power challenge". Just based on whether the product will encounter "sudden cold and heat" in the actual usage scenario, the precise selection can be made.

  ホットタグ : 高温・低温試験室 熱衝撃試験室 環境試験室メーカー 環境シミュレーション室 温度衝撃試験室 Environmental Chamber

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• What should we pay attention to when using a thermal shock test chamber (water-cooled)?

  Nov 22, 2025

  I. Before Operation Use deionized water or distilled water as cooling water (to prevent scale formation); control temperature at 15-30℃, pressure at 0.15-0.3MPa, flow rate ≥5L/min. Clean the Y-type filter element in advance to ensure unobstructed water flow. Inspect water supply/drainage pipelines for secure connections, no leakage or kinking; keep drainage ports unobstructed with a height difference ≥10cm. Ensure the environment is ventilated and dry, grounding resistance ≤4Ω, and power supply (AC380V±10%) stable. Keep the inner chamber and shelves clean. Sample volume ≤1/3 of effective capacity, with weight evenly distributed on shelves. Seal moisture-sensitive parts of non-hermetic samples to avoid condensation affecting test accuracy. II. During Operation Real-time monitor cooling water pressure, flow rate and temperature. Immediately shut down for troubleshooting (pipeline blockage, leakage or chiller failure) if pressure drops sharply, flow is insufficient or temperature exceeds 35℃. Set high/low temperature parameters per GB/T, IEC and other standards (not exceeding rated range); control heating/cooling rate ≤5℃/min. Prohibit instantaneous switching between extreme temperatures. Do not open the door arbitrarily during operation (to prevent scalding/frostbite from hot/cold air). Use protective gloves for emergency sample handling. Shut down immediately for maintenance upon alarm (overtemperature, water shortage, etc.); prohibit forced operation. III. After Test Turn off power and cooling water inlet/outlet valves; drain residual water in pipelines. Clean the water tank and replace water monthly; add special water stabilizer to extend pipeline service life. Wipe the inner chamber and shelves after temperature returns to room temperature. Clean the air filter (1-2 times monthly); inspect pipeline seals and replace aging/leaking ones promptly. For long-term non-use: Power on and run for 30 minutes monthly (including water cooling system circulation), inject anti-rust protection fluid into pipelines, and cover the equipment with a dust cover in a dry, ventilated place. IV. Prohibitions Prohibit using unqualified water (tap water, well water, etc.) or blocking filters/drainage ports (to avoid affecting heat dissipation). Prohibit overloading samples or unauthorized disassembly/modification of water cooling pipelines/core components. Repairs must be performed by professionals. Prohibit frequent start-stop (wait ≥5 minutes after shutdown before restarting). Prohibit placing flammable, explosive or corrosive substances.

  ホットタグ : 高温・低温試験室 熱衝撃試験室 環境試験室メーカー 環境シミュレーション室 温度衝撃試験室 温度環境試験室

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• Differences between High and Low Temperature Test Chamber and Constant Temperature Test Chamber

  Nov 13, 2025

      In environmental reliability testing, high-low temperature humidity test chambers and constant temperature and humidity test chambers are easily confused due to similar names, but they differ significantly in testing capabilities, applications and technical characteristics. Accurate distinction and selection are key to ensuring valid test data. This blog will analyze the core differences and provide selection suggestions. I. Core Definition: Essential Distinction of Functional Boundaries     The core difference between the two starts with functional positioning, which directly determines the applicable scenarios.     The core of the constant temperature and humidity test chamber is "maintaining stability". It can accurately control and maintain the set temperature and humidity for a long time, and is used to simulate the long-term performance of products in specific environments, such as electronic component stability testing and textile temperature-humidity sensitivity testing. Its core requirement is "steady-state environmental performance verification".     The high-low temperature humidity test chamber focuses on "dynamic simulation". In addition to precise temperature and humidity control, it has a wide-range fluctuation capability, which can simulate environments such as high-low temperature cycles and alternating humidity and heat, such as extreme temperature differences during product transportation and diurnal temperature-humidity changes of outdoor equipment. Its core requirement is "dynamic environmental reliability verification". II. Key Differences: Multi-dimensional Analysis from Technology to Application 1. Temperature and Humidity Range and Fluctuation Capacity     The constant temperature and humidity chamber has a mild temperature and humidity range (temperature 0℃-100℃, humidity 30%-95%RH) and high control precision (temperature fluctuation ±0.5℃, humidity ±2%RH), but no extreme temperature-humidity impact capability.     The high-low temperature humidity chamber has a wider temperature and humidity coverage (temperature -70℃~200℃, humidity 10%-98%RH) and rapid change capability (heating rate 3℃/min-15℃/min, cooling rate 1℃/min-10℃/min), which can realize rapid cycle switching between "high temperature and high humidity - low temperature and low humidity"—a feature unavailable in the former. 2. Differences in Core Technical Architecture     The constant temperature and humidity chamber adopts single-stage compression refrigeration, conventional resistance heating, and steam or ultrasonic humidification. Its system design focuses on "energy saving and stability", with simple structure and low operating cost.     To meet extreme needs, the high-low temperature humidity chamber uses cascade refrigeration, rapid-heating tubes, and its humidity system includes a fast-response dehumidification module, with a thicker insulation layer on the chamber wall. Its technical complexity and manufacturing cost are much higher than the former. 3. Applicable Scenarios and Testing Purposes     The constant temperature and humidity chamber is used for steady-state environmental adaptability testing, such as electronic component aging and pharmaceutical storage simulation, to verify the performance consistency and durability of products in a fixed environment.     The high-low temperature humidity chamber focuses on dynamic reliability testing, such as high-low temperature cycling of auto parts and extreme environment simulation of aerospace products, to expose product defects (material aging, structural deformation, etc.) under drastic environmental changes.     In summary, the constant temperature and humidity chamber guards the steady-state environment, while the high-low temperature humidity chamber challenges the dynamic environment. There is no absolute advantage or disadvantage between the two. Only by matching needs, clarifying scenarios and budgets can the test truly guarantee product quality.

  ホットタグ : 高温・低温試験室 恒温試験室 湿度試験室 環境試験室メーカー 環境シミュレーション室 温度環境試験室

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• Lab Two-Chamber Thermal Shock Chamber

  Nov 03, 2025

  The two-chamber thermal shock chamber is a highly reliable environmental testing device specifically designed for evaluating the ability of products to withstand extreme temperature changes. It simulates harsh temperature shock conditions to rapidly expose the possible failures of materials, electronic components, automotive parts and aerospace equipment during rapid thermal expansion and contraction, such as cracking, performance degradation and connection faults. It is a key tool for improving product quality and reliability. The core design concept of this device lies in efficiency and harshness. It has two independently controlled test chambers inside: a high-temperature chamber and a low-temperature chamber, which are respectively maintained at the set extreme temperatures continuously. The sample to be tested is placed in an automatic mechanical basket. During the test, the basket will be rapidly switched between the high-temperature zone and the low-temperature zone under the program control, instantly exposing the sample to a huge temperature difference environment, thus achieving the true "thermal shock" effect. Compared with another mainstream three-chamber (static) impact chamber, the significant advantage of the two-chamber type lies in its extremely fast temperature conversion speed and short temperature recovery time, ensuring the strictness and consistency of the test conditions. It is highly suitable for testing samples with sturdy structures that can withstand mechanical movement, and the testing efficiency is extremely high. Its working principle determines that during the testing process, the temperature fluctuation of the high and low temperature chamber is small, it can quickly return to the set point, and is not significantly affected by the sample load. This equipment is widely used in fields such as semiconductors, integrated circuits, national defense science and technology, automotive electronics, and new material research and development, for conducting reliability tests as required by various international standards. Its main technical parameters include a wide temperature range (high temperatures up to +150°C to +200°C, low temperatures down to -40°C to -65°C or even lower), precise temperature control accuracy, and customizable sample area sizes. The Lab two-chamber thermal shock chamber, with its irreplaceable rapid temperature change capability, has become the ultimate touchstone for testing the adaptability and durability of products in extreme temperature environments, providing a strong guarantee for the precision manufacturing and reliability verification of modern industry.

  ホットタグ : 高温・低温試験室 熱衝撃試験室 Basket Impact Test Chamber Reliability Testing Equipment Two-chamber Temperature Test Chamber Lab Temperature Test Chamber

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• Dragon Heat Flow Meter Temperature Control Test

  Oct 29, 2025

  Temperature control tests are usually conducted under two conditions: no-load (without sample placement) and load (with standard samples or actual samples being tested placed). The basic testing steps are as follows:   1. Preparatory work: Ensure that the heat flow meter has been fully preheated and is in a stable state. Prepare high-precision temperature sensors that have undergone metrological calibration (such as multiple platinum resistance PT100), and their accuracy should be much higher than the claimed indicators of the heat flow meter to be measured. 2. Temperature uniformity test: Multiple calibrated temperature sensors are arranged at different positions within the working area of the heat flow meter's heating plate (such as the center, four corners, edges, etc.). Set one or more typical test temperature points (such as -20°C, 25°C, 80°C). After the system reaches thermal stability, simultaneously record the temperature values of all sensors. Calculate the maximum, minimum and standard deviation of these readings to evaluate the uniformity. 3. Temperature control stability and accuracy test: Fix a calibrated temperature sensor at the center of the heating plate (or closely attach it to the built-in sensor of the instrument). Set the target temperature and start the temperature control. Record the entire process from the start to reaching the target temperature (for analyzing response speed and overshoot). After reaching the target temperature, continuously record for at least 1-2 hours (or as per standard requirements), with a sampling frequency high enough (such as once per second), and analyze the recorded data. 4. Load test: Place standard reference materials with known thermal physical properties or typical samples to be tested between the hot plates. Repeat step 3 and observe the changes in temperature control performance under load conditions. Load will directly affect the thermal inertia of the system, thereby influencing the response speed and stability.   When you are choosing or using a heat flow meter, be sure to carefully review the specific parameters regarding temperature control performance in its technical specification sheet and understand under what conditions (no-load/load) these parameters were measured. Lab will provide clear and verifiable temperature control test data and reports.

  ホットタグ : 高温・低温試験室 温度試験室 Reliability Testing Equipment Dragon Heat Flow Meter Programmable Test Equipment Temperature Control Testing Equipment

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• How is over-temperature protection carried out in a temperature test chamber?

  Oct 23, 2025

  The over-temperature protection of the temperature test chamber is a multi-level and multi-redundant safety system. Its core purpose is to prevent the temperature inside the chamber from rising out of control due to equipment failure, thereby protecting the safety of the test samples, the test chamber itself and the laboratory environment.   The protection system usually consists of the following key parts working together: 1. Sensor: The main sensor is used for the normal temperature control of the test chamber and provides feedback signals to the main controller. An independent over-temperature protection sensor is the key to a safety system. It is a temperature-sensing element independent of the main control temperature system (usually a platinum resistance or thermocouple), which is placed by strategically at the position within the box that best represents the risk of overheating (such as near the heater outlet or on the top of the working chamber). Its sole task is to monitor over-temperature. 2. Processing unit: The main controller receives signals from the main sensor and executes the set temperature program. The independent over-temperature protector, as an independent hardware device, is specifically designed to receive and process the signals from the over-temperature protection sensor. It does not rely on the main controller. Even if the main controller crashes or experiences a serious malfunction, it can still operate normally. 3. Actuator: The main controller controls the on and off of the heater and the cooler. The safety relay/solid-state relay receives the signal sent by the over-temperature protector and directly cuts off the power supply circuit of the heater. This is the final execution action.   The over-temperature protection of the temperature test chamber is a multi-level, hard-wire connected safety system designed based on the concepts of "redundancy" and "independence". It does not rely on the main control system. Through independent sensors and controllers, when a dangerous temperature is detected, it directly and forcibly cuts off the heating energy and notifies the user through sound and light alarms, thus forming a complete and reliable safety closed loop.

  ホットタグ : 高温・低温試験室 熱衝撃試験室 湿度試験室 温度試験室 温度試験装置 Precision Ove

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• The Applicability of Temperature Test Chambers to the Testing of Household Environmental Products

  Oct 18, 2025

  A variety of products used in home environments (more common test objects) such as televisions, air conditioners, refrigerators, washing machines, smart speakers, routers, etc., as well as environmental protection products used to improve the home environment: such as air purifiers, fresh air systems, water purifiers, humidifiers/dehumidifiers, etc. No matter which category it is, as long as it needs to work stably for a long time in a home environment, it must undergo strict environmental reliability tests. The high and low temperature test chamber is precisely the core equipment for accomplishing this task.   The home environment is not always warm and pleasant, and products will face various harsh challenges in actual use. This mainly includes regional climate differences, ranging from the severe cold in Northeast China (below -30°C) to the scorching heat in Hainan (up to over 60°C in the car or on the balcony). High-temperature scenarios such as kitchens close to stoves, balconies exposed to direct sunlight, and stuffy attics, etc. Or low-temperature scenarios: warehouses/balconies without heating in northern winters, or near the freezer of refrigerators. The high and low temperature test chamber, by simulating these conditions, "accelerates" the aging of products in the laboratory and exposes problems in advance.   The actual test cases mainly cover the following aspects: 1. The smart TV was continuously operated at a high temperature of 55°C for 8 hours to test its heat dissipation design and prevent screen flickering and system freezing caused by overheating of the mainboard. 2. For products with lithium batteries (such as cordless vacuum cleaners and power tools), conduct charge and discharge cycles at -10°C to assess the battery performance and safety at low temperatures and prevent over-discharge or fire risks. 3. The air purifier (with both types of "environmental product" attributes) undergoes dozens of temperature cycles between -20°C and 45°C to ensure that its plastic air ducts, motor fixing frames and other structures will not crack or produce abnormal noises due to repeated thermal expansion and contraction. 4. Smart door lock: High-temperature and high-humidity test (such as 40°C, 93%RH) to prevent internal circuits from getting damp and short-circuited, which could lead to fingerprint recognition failure or the motor being unable to drive the lock tongue.   High and low temperature test chambers are not only applicable but also indispensable for the testing of household environmental products. By precisely controlling temperature conditions, it can ensure user safety and prevent the risk of fire or electric shock caused by overheating or short circuits. Ensure that the product can work stably in different climates and home environments to reduce after-sales malfunctions. And it can predict the service life of the product through accelerated testing. Therefore, both traditional home appliance giants and emerging smart home companies will take high and low temperature testing as a standard step in their product development and quality control processes.

  ホットタグ : 高温・低温試験室 高温・低温湿度試験室 Cold and Hot Environment Test Chamber Low Humidity Environment Test Chamber High Temperature Aging Test Chamber Reliability Testing Equipment

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• エアバルブによる試験室内の温度バランスの原理

  Sep 22, 2025

  その基本原理は、「加熱-測定-制御」という閉ループの負帰還システムです。簡単に言えば、ボックス内の加熱素子の出力を正確に制御することで、外部環境による熱放散を抑え、周囲温度よりも高い一定の試験温度を維持することです。エアバルブが温度を安定させるプロセスは、動的かつ継続的に調整される閉ループです。 まず、目標温度を設定します。温度センサーがボックス内の実際の温度をリアルタイムで測定し、その信号をPIDコントローラに送信します。PIDコントローラが誤差値を計算すると、PIDアルゴリズムを用いて誤差値に基づいて調整すべき加熱電力を計算します。このアルゴリズムは3つの要素を考慮します。P（割合）：電流誤差はどのくらいですか？誤差が大きいほど、加熱電力の調整範囲が大きくなります。I（積分）：一定期間における誤差の蓄積。静的誤差を除去するために使用されます（例えば、常にわずかな偏差がある場合、積分項によって徐々にその誤差の度合いが増し、完全に除去されます）。D（微分）：電流誤差の変化率。温度が目標値に急速に近づいている場合、オーバーシュートを防ぐために事前に加熱電力を下げます。3. PID コントローラは、計算された信号を加熱要素の電力コントローラ (ソリッドステート リレー SSR など) に送信し、加熱線に適用される電圧または電流を正確に調整して、発熱を制御します。4. 循環ファンは連続運転し、加熱によって発生した熱を迅速かつ均一に分散させます。同時に、温度センサーの信号変化をコントローラーに迅速にフィードバックすることで、システムの応答時間を向上させます。 エアバルブバランサーは空気量を測定しますが、空気の密度は温度によって変化します。同じ差圧値でも、密度の異なる空気に対応する質量流量または体積流量は異なります。そのため、機器内部のマイクロプロセッサが測定された差圧値に基づいて予め設定された計算式を用いて標準状態における空気量値を正確に算出できるように、温度を既知の固定値に安定させる必要があります。温度が不安定な場合、測定結果は信頼できません。

  ホットタグ : 高温・低温試験室 恒温恒湿チャンバー 温度試験装置 環境シミュレーション試験室 試験室のコアコンポーネント 高温と低温のバランス

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• 安全な試験室の試験環境の構築

  Sep 16, 2025

  ラボの安全なテスト環境を構築するための鍵 高温・低温試験室 個人の安全、機器の安全、試験片の安全、データの正確性を確保することにあります。1.個人の安全に関する考慮事項高温チャンバーの扉を開けてサンプルを取り出す前に、耐高温・耐低温保護具を適切に着用してください。飛散や極度に高温／低温のガス漏れの可能性がある作業を行う場合は、保護マスクまたはゴーグルの着用を推奨します。試験室は換気の良い実験室に設置し、密閉された狭い空間での試験は避けてください。高温試験では、試験片から揮発性物質が放出される可能性があります。十分な換気は有害ガスの蓄積を防ぐのに役立ちます。電源コードの仕様が機器の要件を満たしていること、およびアース線が確実に接続されていることを確認してください。感電を防ぐため、濡れた手で電源プラグ、スイッチ、サンプルに触れることは絶対に避けてください。 2. 機器を正しく設置するコンデンサー、コンプレッサー、その他の放熱システムの正常な動作を確保するため、機器の背面、上面、両側面には、メーカーが指定する最小安全距離（通常50～100cm以上）を確保する必要があります。換気が不十分だと、機器の過熱、性能低下、さらには火災につながる可能性があります。電圧変動やトリップの原因となる可能性のある他の高電力機器（エアコンや大型機器など）と同じ回路を共有することを避けるために、テストチャンバー専用の電源ラインを用意することをお勧めします。本装置の運転周囲温度は5℃～30℃を推奨します。周囲温度が高すぎると圧縮機への負荷が著しく増加し、冷凍効率の低下や故障の原因となります。直射日光の当たる場所、熱源の近く、振動の激しい場所への設置は避けてください。 3. テストの妥当性と再現性の確保サンプルはボックス内の作業室の中央に配置します。ボックス内の空気の円滑な循環と均一で安定した温度を確保するため、サンプル間およびサンプルとボックス壁の間には十分な間隔（通常は50mm以上）を確保する必要があります。高温高湿試験（恒温恒湿槽内など）を行った後、低温試験が必要な場合は、槽内に過剰な氷が形成されて機器の性能に影響を及ぼすのを防ぐために、除湿操作を行う必要があります。防爆試験室（この目的のために特別に設計されたもの）を除き、可燃性、爆発性、腐食性、揮発性の高い物質の試験は厳禁です。また、アルコールやガソリンなどの危険物を通常の高温・低温試験室に保管することも厳禁です。 4. 安全操作仕様および緊急時手順運転前に、ボックスのドアがしっかりと密閉されているか、ドアロック機能が正常かどうかを確認してください。ボックス内に異物や汚れがないか確認してください。設定温度曲線（プログラム）が正しいか確認してください。試験期間中は、機器の動作状態が正常であるか、異常な音や警報が出ていないかを定期的に確認する必要があります。サンプルの取り扱いと配置に関する基準：高温用および低温用の手袋を適切に着用してください。ドアを開けた後は、熱波が顔に当たらないよう、体を少し横に向けます。サンプルを素早く慎重に取り出し、安全な場所に置いてください。緊急対応：機器の緊急停止ボタンの位置、または緊急時に速やかに主電源を遮断する方法を把握しておいてください。水消火器や泡消火器の代わりに、二酸化炭素消火器（電気火災に適するもの）を近くに設置してください。

  ホットタグ : 恒温恒湿試験室 高温・低温試験室 温度サイクリングボックス 試験室試験環境 精密オーブン 試験室の安全上の注意事項

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