The NextGen Environmental Chambers come with a defrosting function to ensure that frost accumulation does not affect the accuracy of the testing process. The defrosting function is controlled by an automatic system that senses the amount of ice buildup on the evaporator and initiates the defrost cycle as needed. The system uses a programmed microprocessor-based controller to monitor the chamber’s temperature and humidity levels and control the defrost cycle.

During the defrost cycle, the system temporarily stops the cooling and heating functions and activates the defrost heater to melt the ice. The water produced from the defrost cycle is then collected in a drain pan and removed from the chamber. The defrost cycle is timed and varies depending on the amount of ice buildup, typically 30 to 45 minutes.

The automatic defrosting function is designed to minimize the need for manual intervention, reducing the risk of errors and ensuring test results’ accuracy. The user can also manually initiate the defrost cycle if necessary. Additionally, the system includes a defrost heater safety limit switch to prevent overheating and ensure safe operation.

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