Three-Zone Thermal Shock Test Chamber
Date: 04/10/2025 Categories: Video Views: 2411
This 29-second video introduces the DERUI DR-H203 three-zone thermal shock test chamber. It shows the chamber structure, 150 L test workspace, internal construction, compressors and key components, while explaining a stationary-specimen design that switches conditioned hot and cold air through dampers.
DR-H203 three-zone thermal shock chamber—structure, internal workspace, compressors, components and energy-saving design.
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What This Three-Zone Thermal Shock Video Shows
Chamber construction
- Three-zone chamber arrangement
- 150 L internal test workspace
- Stationary specimen configuration
- Hot- and cold-air damper switching
Mechanical configuration
- Compressor and refrigeration components
- Internal chamber construction
- Air-conditioning and transfer system
- Energy-saving design introduction
How a Stationary-Specimen Three-Zone Chamber Works
The specimen remains in the 150 L test workspace throughout the cycle. Separate high- and low-temperature conditioning zones prepare hot and cold air in advance. When the programmed test changes from one condition to another, controlled dampers redirect the required air into the test workspace.
This arrangement avoids mechanically transferring the specimen between hot and cold compartments. It can be useful for samples that are heavy, delicate, instrumented or connected to monitoring cables. The chamber must still be selected according to specimen mass, fixture design, heat load and the required recovery performance.
Precondition
The hot and cold zones prepare the required air conditions.
Expose
The stationary specimen dwells at the programmed condition.
Switch
Dampers change the airflow path within the specified conversion time.
Recover
The test workspace reaches and stabilizes at the next condition.
DR-H203 Specifications Provided for This Video
| Parameter | Provided value | Selection note |
|---|---|---|
| Model | DR-H203 | Confirm the complete model suffix and options on the quotation. |
| Test workspace | 150 L | Check internal dimensions, fixture size and required airflow clearance. |
| High-temperature zone | Room temperature to +200°C | Specify the actual hot test setpoint and dwell time. |
| Low-temperature zone | −65°C to 0°C | Specify the actual cold test setpoint and specimen load. |
| Temperature conversion time | 30 seconds | Confirm the measurement definition and test condition. |
| Temperature recovery time | 3 minutes | Confirm recovery tolerance, load, sensor position and setpoints. |
| Specimen movement | Stationary | Hot and cold airflow is switched through dampers. |
Where Three-Zone Thermal Shock Testing Is Used
Electronics and PCBs
Rapid hot-to-cold exposure can reveal solder-joint, connector, package and material-interface weaknesses that may not appear during gradual temperature cycling.
Automotive components
ECUs, sensors, lighting modules and electrical assemblies may require thermal shock profiles based on customer specifications or automotive environmental requirements.
Semiconductor devices
Packages, modules and test boards can be exposed to repeated temperature extremes while the stationary workspace supports monitoring connections.
Aerospace and industrial equipment
Components used in rapidly changing environments can be evaluated for cracking, deformation, seal damage or intermittent functional failure.
Three-Zone vs. Two-Zone Thermal Shock Chambers
| Selection factor | Stationary-specimen three-zone design | Typical two-zone transfer design |
|---|---|---|
| Specimen movement | Specimen remains in the test workspace | A basket or carrier typically transfers the specimen |
| Condition change | Dampers switch conditioned airflow | Specimen moves between hot and cold zones |
| Instrumented samples | Can simplify fixed cable and sensor routing | Cable routing must accommodate movement |
| Critical performance | Airflow switching and workspace recovery | Transfer time and zone recovery |
| Best choice depends on | Test method, sample mass, dimensions, connections, dwell conditions and permitted recovery time | |
Standards and Test-Plan Compatibility
IEC 60068-2-14:2023 addresses specified changes of ambient temperature and includes requirements for change-of-temperature tests and reporting. A chamber configuration should be selected against the exact procedure, specimen condition, severity, dwell time and tolerance required by the applicable specification.
Other automotive, aerospace, military or customer requirements may also call for temperature-shock testing. Equipment capability alone does not prove compliance with every standard. Confirm the invoked edition and procedure, then verify chamber performance with the intended load and measurement method.
Information Required to Select the Correct Configuration
Specimen and profile
- Specimen dimensions, mass and quantity
- Fixture dimensions and material
- Hot and cold setpoints
- Dwell time and number of cycles
- Required conversion and recovery definitions
Interfaces and facility
- Powered heat load and monitoring cables
- Required access ports and sensors
- Applicable standard and acceptance limits
- Power supply and installation environment
- Cooling, exhaust and service-access requirements
Explore the complete DERUI thermal shock test chamber range, review technical information in the download center, or send the test profile to DERUI for a configuration review.
Frequently Asked Questions
Does the specimen move inside this DR-H203 chamber?
No. For the configuration presented in this video, the specimen remains stationary in the 150 L test workspace while dampers switch conditioned hot and cold airflow.
What are the provided temperature ranges?
The high-temperature zone is stated as room temperature to +200°C, and the low-temperature zone as −65°C to 0°C. The actual test setpoints must remain within the configured operating limits.
What is the difference between the 30-second conversion time and 3-minute recovery time?
The 30-second figure refers to changing the temperature-conditioning path. The 3-minute figure refers to the workspace recovering to the required condition. Confirm the test load, setpoints, tolerance and sensor location used for these ratings.
Which samples benefit from a stationary test workspace?
Heavy, fragile or instrumented specimens can benefit because the sample and its monitoring connections do not move between compartments. Suitability still depends on the required test standard and profile.
What should be provided for a quotation?
Send specimen dimensions and mass, hot and cold setpoints, dwell time, cycle count, required recovery performance, powered heat load, monitoring connections, applicable standard and facility power supply.
Video Summary
This 29-second English-language video presents the DERUI DR-H203 three-zone thermal shock test chamber. It shows the three-zone construction, 150 L internal workspace, compressors and supporting components, and introduces three patented energy-saving technologies. The specimen remains stationary while dampers switch conditioned hot and cold airflow. Provided ratings include a high-temperature zone from room temperature to +200°C, a low-temperature zone from −65°C to 0°C, a 30-second conversion time and a 3-minute recovery time.
Need a Three-Zone Thermal Shock Chamber Proposal?
Send the specimen size, mass, test setpoints, dwell time, recovery requirement, heat load and applicable standard. DERUI can review the profile and recommend an appropriate configuration.
