IEC 60068-2-40 | Sanwood Technology Altitude Test Chamber

Today, the reliability of electrical and electronic products no longer depends solely on the ingenuity of design, but more importantly on their resilience under extreme environmental challenges. The severe cold and thin air of the plateau, the low temperature and low pressure at an altitude of ten thousand meters—these harsh combined environments act as “amplifiers” of product failure. The International Electrotechnical Commission standard IEC 60068-2-40 specifies stringent methods for combined low temperature/low air pressure testing. Sanwood Technology’s Altitude Test Chamber fully complies with this standard, providing reliable support to ensure the validity of verification.

I. Interpretation of IEC 60068-2-40

IEC 60068-2-40 stands for "Environmental Testing - Part 2-40: Tests - Test Z/AM: Combined Low-Temperature and Low-Pressure Tests." It simulates a complex, real-world scenario involving two simultaneous stresses. Its core purpose is to evaluate a operational performance and storage endurance of products under the combined effects of low temperature and low pressure.

II. Technical Parameters

As a company deeply engaged in the field of environmental testing equipment, we deeply understand every technical requirement of the standard and translate them into the technical capabilities of our equipment. The following are the technical specifications of Sanwood Technology's Altitude Test Chambers:

Temperature Range: +25°C to +50°C, Constant Temperature, 34kW Heating Load

Temperature Fluctuation: ≤±0.5°C (at normal pressure, no load)

Temperature Deviation: ≤±2.0°C (at normal pressure, no load)

Temperature Uniformity: ≤2.0°C (at normal pressure, no load)

Pressure Range: Atmospheric Pressure to 80.0kPa

Pressure Deviation: ≤±2kPa

Using Conditions: Ambient Temperature: +5°C to +35°C, Ambient Humidity ≤85%RH, Cooling Water Temperature ≤32°C, Cooling Water Pressure 0.25-0.4MPa, Cooling Water Capacity: 20 tons/hour.

III. Applications

Choosing a reliable test chamber provides a double guarantee for your product's reliability. It is widely used in the following applications:

Aerospace: High-altitude environmental simulation tests for onboard equipment and satellite components.

Automotive Electronics: Verification of vehicle electronic systems, especially core components of new energy vehicles, under extreme plateau environments.

High-End Components: Performance and lifespan evaluation of critical components for communications, defense, and scientific research under extreme conditions.

IV. Solution

We believe that a professional environmental testing chamber is not merely a collection of parameters, but a complete testing solution.

User-Friendly Operation: Equipped with a touchscreen control system, allowing users to retrieve programs and set key parameters to automatically complete tests, significantly reducing operational difficulty.

Safety Assurance: Multiple safety protection measures ensure the safety of both operators and test samples.

Professional Service Support: Our team of professional engineers not only provides equipment installation and training, but also offers technical support on test plan selection and standard interpretation, becoming a reliable partner in the field of reliability engineering.

V. Conclusion

In the pursuit of ultimate reliability, rigorous testing and professional equipment are indispensable. The IEC 60068-2-40 standard sets the standard for this rigorous test. Sanwood Technology's Altitude Test Chambers are your solid partner for improving product quality and enabling technological innovation. In addition to the Altitude Test Chambers, we also offer AGREE Test Chambers, Walk-In Test Chambers, and ESS Test Chambers.

For more efficient testing solutions, please contact Sanwood Technology and we will customize a customized environmental testing solution for you.