A leading automotive supplier required a reliable environmental test solution to evaluate the performance and durability of various components—such as wiring harnesses, control modules, sensors, and dashboard parts—under extreme temperature and humidity conditions.

Their goal was to simulate real-world climate exposure such as hot summers, cold winters, and high-humidity tropical environments to ensure the long-term reliability and regulatory compliance of their parts.

The walk-in environmental chamber is a large-scale testing device designed to simulate extreme temperature and humidity conditions. It features a temperature range of -40°C to +120°C (customizable) and a humidity range of 20% to 98% RH. The chamber is used for conducting high and low temperature as well as humidity tests.These parameters are suitable for simulating a wide range of environmental conditions, from extreme cold to high heat, and from dry to highly humid climates. The equipment adopts phased temperature control technology, enabling rapid heating and cooling during the test process. The temperature change rate can be adjusted according to experimental requirements, ensuring that the test conditions accurately reflect real operating environments such as day–night temperature differences and regional climate variations in transportation applications.

The walk-in environmental chamber is primarily designed for the field of transportation engineering, with applications including:

• Automotive component testing: Verifying the reliability of automotive electronic parts, battery packs, sealing elements, and other components under extreme temperature and humidity conditions.

• Material durability evaluation: Assessing the aging performance of materials such as rubber and plastics when subjected to long-term high and low temperature cycles.

• Complete system environmental adaptability tests: Simulating special climatic conditions such as desert heat and arctic cold to evaluate the operational stability of construction machinery and rail transit equipment.

With its large chamber design, the equipment can accommodate entire systems or oversized components for comprehensive high and low temperature as well as humidity testing.

• Wide-range Environmental Simulation: Covers a temperature range of -40°C to 120°C and a humidity range of 20% to 98% RH, meeting the requirements of most extreme environmental tests.

• Precise Control: Utilizes PID regulation algorithms to achieve temperature stability within ±0.5°C and humidity stability within ±2% RH.

• Safety Protection: Equipped with over-temperature protection, leakage monitoring, and emergency power-off devices to ensure safe operation during long-term testing.

• Modular Design: Can be customized to expand test space or integrate additional modules such as vibration tables according to user requirements.

• Operating Procedure for the Walk-in Environmental Chamber:

• Pre-clean the test chamber: Ensure the chamber is free of residues to prevent interference with test results.

• Set target temperature, humidity, and ramp rates: Avoid rapid changes that may damage the equipment.

• Monitor and record data in real time: Track any abnormal fluctuations, and perform a gradual return-to-ambient temperature procedure after testing.

• Maintenance Requirements:

• Periodically calibrate sensors.

• Replace filters regularly to ensure optimal performance and accuracy.