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Precision temperature cycling test chamber for electronics

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Description

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The Precision Temperature Cycling Test Chamber is a sophisticated environmental testing device specifically designed for the electronics industry. It simulates rapid and precise temperature changes to evaluate the thermal endurance, reliability, and performance of electronic components, assemblies, and finished products. This chamber is essential for identifying potential weaknesses in materials and designs, ensuring that electronic devices can withstand the thermal stresses they may encounter during real-world use. By subjecting products to controlled and repeatable temperature cycles, manufacturers can improve product quality, extend lifespan, and meet stringent industry standards.

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The primary role of the Precision Temperature Cycling Test Chamber is to assess the thermal stability and reliability of electronic components and systems. By exposing these items to rapid and extreme temperature changes, the chamber helps identify potential issues such as:

- Material Fatigue: Repeated thermal expansion and contraction can lead to material fatigue, which may cause cracks or failures in solder joints, connectors, and other critical components.

- Thermal Shock Resistance: The chamber evaluates how well electronic devices can withstand sudden temperature changes, which is crucial for products used in harsh environments like aerospace, automotive, and industrial applications.

- Long-Term Durability: By subjecting products to extended temperature cycling, manufacturers can predict their long-term performance and identify any design flaws that could lead to premature failure.

- Compliance with Standards: The chamber ensures that products meet or exceed industry standards for thermal endurance, helping manufacturers avoid costly recalls and ensure customer satisfaction.

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1. Ultra-Precise Temperature Control: The chamber offers unparalleled accuracy in temperature regulation, with minimal overshoot or undershoot, ensuring that test conditions are consistent and reliable.

2. Rapid Temperature Transitions: Equipped with advanced heating and cooling systems, it can achieve fast temperature changes, often within seconds, to simulate real-world thermal shocks and cycling.

3. Wide Temperature Range: Capable of operating from ultra-low temperatures (e.g., -80°C) to high heat (e.g., +180°C), it supports a broad spectrum of testing requirements, from cryogenic to elevated temperatures.

4. Customizable Cycles: Users can program specific temperature profiles to mimic various usage scenarios or comply with international standards such as IEC 60068-2-14, MIL-STD-810, and ISO 16750-4.

5. Integrated Monitoring and Data Logging: High-resolution sensors and real-time data logging systems provide continuous monitoring of temperature changes and product performance, offering detailed insights for analysis.

6. Enhanced Safety Protocols: Built-in safety features, including overtemperature protection, emergency stop mechanisms, and pressure relief valves, ensure both operator safety and the integrity of the test samples.

7. Compact Design: Despite its advanced capabilities, the chamber is designed to be space-efficient, making it suitable for both laboratory and production environments.

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Model		DR-H201-100	DR-H201-150	DR-H201-225	DR-H201-408	DR-H201-1000
Internal Dimension (WHD)		500500400mm	500500600mm	600750500mm	600850800mm	100010001000mm
External Dimension (paint Type) (WHD)		75015361310mm	75016361410mm	85017861410mm	85018901710mm	125020661910mm
Temperature（℃）		-20/-40/-70	-20/-40/-70	-20/-40/-70	-20/-40/-70	-20/-40/-70
Total Power（kw）		4.5/4.5/6.5	5/5/6.5	9.5/9.5/11.6	9.5/9.5/11.6	17/17/21.5
Maximum Current（A）		25/25/32	32/32/40	25/32/40	25/32/40	50/50/60
Voltage（A）		Sigle Phase 220V	Sigle Phase 220V	Three Phase 380V	Three Phase 380V	Three Phase 380V
Performane	Temp.& Humi. Adjust Way	Balanced temperature and humidity control (BTHC) PID intelligent adjustment
	Temperature range	-20℃,-40℃,-70℃~150℃
	Temperature accuracy	0.01℃
	Temperature tolerance	≤±1.0℃ or ±2.0℃
	Temperature fluctuations	≤±0.5℃ （without load and temperature stable）
	Temperature uniformity	≤1.5℃ （without loading）, 50mm≤SENSOR
	Humidity range	20%-98%RH
	Humidity accuracy	0.1%RH
	Humidity tolerance	1 、≥75%RH：≤±3%RH ；2 、≤75%RH ：≤±6%RH
	Humidity fluctuations	≤±2.5%RH
	Heating rate	3℃/min in average
	Cooling rate	1℃/min in average
	Internal Chamber Material	Stainless Steel 304
	External Chamber Material	Stainless Steel steel of paint spray
Regulator	Cooling Method	Single stage compression, two stage compression
	Refrigerator	Hermertically Sealed France Tecumseh Compressor or Semi-hermetic BOCK Compressor
	Cooling Method	Air-cooled
Controller	Operation Panel	Programmable LCD Touch Screen
	Running Mode	Fix Running, Pattern Running
	Program Memory Capacity	120 Group Programmable, Max 100 Section Each
	Output	Rs-232 (USB,Optional)
Water sup	Water Supply	Circulating Water
	Water Tank Capacity	Chamber Internal Capacity < 800L: 25L X 1pc Chamber Internal Capacity > 800L: 25LX 2pc

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Working Principle

The Precision Temperature Cycling Test Chamber operates on the principle of alternating between high and low temperature extremes to simulate real-world thermal conditions. The process involves the following steps:

1. Initial Setup: The user programs the desired temperature profile, including start and end temperatures, transition rates, and dwell times at each temperature extreme.

2. Heating Phase: The chamber's heating system rapidly increases the internal temperature to the specified high point using electric heaters or other heating elements.

3. Cooling Phase: Once the high temperature is reached, the cooling system engages, quickly lowering the temperature to the specified low point. This is achieved through refrigeration units or liquid nitrogen, depending on the model.

4. Cycle Repetition: The chamber repeats the heating and cooling phases according to the programmed cycle, maintaining precise control over the temperature transitions.

5. Data Collection: Throughout the test, sensors continuously monitor the temperature and other relevant parameters, with data being logged for later analysis.

Testing Projects and Procedures

The Precision Temperature Cycling Test Chamber is used to conduct a variety of testing projects, each tailored to specific industry requirements. Common testing procedures include:

1. Thermal Cycling: Subjecting components to repeated temperature changes to evaluate their ability to withstand thermal stress over time.

2. Thermal Shock Testing: Exposing products to rapid and extreme temperature changes to assess their resistance to thermal shock.

3. Humidity and Temperature Combined Testing: Simulating environments where both temperature and humidity fluctuate, such as in automotive or marine applications.

4. Vibration and Temperature Combined Testing: Assessing the combined effects of vibration and temperature on product performance, particularly for aerospace and military applications.

5. Corrosion Resistance Testing: Evaluating the ability of electronic components to resist corrosion in environments with corrosive gases or moisture.

Testing Workflow

The typical workflow for conducting tests in the **Precision Temperature Cycling Test Chamber** involves the following steps:

1. Preparation: Place the test samples inside the chamber, ensuring they are securely positioned and do not obstruct airflow. Connect any necessary sensors or monitoring equipment.

2. Programming: Use the control panel or software interface to program the desired temperature profile, including the number of cycles, transition rates, and dwell times.

3. Start the Test: Initiate the test cycle, and allow the chamber to automatically execute the programmed temperature changes.

4. Monitoring: Continuously monitor the test progress using the integrated data logging system, checking for any anomalies or deviations from the expected results.

5. Post-Test Analysis: After the test is complete, remove the samples and analyze the data to identify any failures or performance issues. Use this information to make informed decisions about design improvements or material selection.

Safety Protection Measures

To ensure safe operation and protect both the equipment and the test samples, the **Precision Temperature Cycling Test Chamber** incorporates several safety features:

1. Overtemperature Protection: Sensors monitor the internal temperature and automatically shut down the heating system if it exceeds preset limits, preventing damage to the chamber or the samples.

2. Emergency Stop Button: A readily accessible emergency stop button allows operators to immediately halt the test cycle in case of an unexpected issue.

3. Pressure Relief Valves: These valves release excess pressure that may build up during rapid temperature changes, preventing overpressure and ensuring the structural integrity of the chamber.

4. Leak Detection System: An integrated leak detection system monitors for any gas or coolant leaks, alerting operators to potential hazards.

5. Temperature Gradient Control: The chamber uses advanced algorithms to control the rate of temperature change, minimizing thermal shock and protecting sensitive components.

In summary, the Precision Temperature Cycling Test Chamber is an indispensable tool for the electronics industry, providing a comprehensive and reliable method for evaluating the thermal endurance and reliability of electronic components and systems. Its advanced features, safety protocols, and precise control make it an essential asset for manufacturers seeking to deliver high-quality, durable products that meet or exceed industry standards. By simulating real-world thermal conditions, this chamber helps ensure that electronic devices can perform reliably in even the most challenging environments.

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