Common Issues Encountered When Operating Constant Temperature and Humidity Test Chambers

Source：LINPIN Time：2025-04-17 Category：Industry News

For environmental testing equipment like constant temperature and humidity test chambers, various factors can affect their operation during use. Improper handling of certain issues may even lead to significant losses. If problems arise suddenly during testing, they can cause considerable inconvenience.

Many users recognize when an issue occurs with the test chamber but remain unsure how to resolve it. Below, we provide several solutions for addressing operational interruptions.

constant temperature and humidity test chambers

Identify the Type of Interruption
When a problem occurs, first determine whether it falls under one of the following categories based on the GJB150 standard:

Tolerance-range interruption (minor deviation within acceptable limits)
Under-test condition interruption (conditions fall below required parameters)
Over-test condition interruption (conditions exceed required parameters)
Only by identifying the specific issue can targeted solutions be applied.
Tolerance-Range Interruption
If the interruption is within the acceptable tolerance range, the error is minor and controllable. In this case, analyze the situation and treat the interruption period as part of the total test duration. The final test results will still be usable with minimal deviation.

Under-Test Condition Interruption
If the test conditions fall below the required minimum, the test may become invalid. To resolve this, adjust the conditions back to the predefined parameters before resuming the test cycle.

Over-Test Condition Interruption
If the test conditions exceed the required limits (e.g., causing sample failure), the results will be invalid. To prevent further interruptions, replace the faulty sample, ensure it meets specifications, and restart the test.

Unexpected Interruptions (Power Outages, Equipment Failures, etc.)
In cases of sudden interruptions (e.g., power or water supply cuts), seal the test chamber door and inspect the sample. If the sample remains unaffected and the equipment can quickly resume operation, handle it as an under-test condition interruption.

Additional Note:

If the interruption lasts less than 2 hours, follow the corresponding GJB150 guidelines for resolution.
If the interruption exceeds 2 hours, the entire test must be restarted.
By following these steps, users can effectively manage interruptions and ensure accurate test results.

Previous article: Do You Know the Application Industries and Categories of Salt Spray Test Chambers?

Next article: How to Properly Maintain a UV Aging Test Chamber in Winter

News Recommendation

25.08

Master These Skills, and You Can Easily Handle Faults of the Constant Temperature and Humidity Test Chamber

In the daily use of the constant temperature and humidity test chamber, due to operational errors or a lack of regular maintenance, the equipment may occasionally experience faults, thereby disrupting the normal workflow.

25.09

Technical Specification and Key Control Points for the Installation of Salt Fog Chambers (Applicable to the pre-deployment of precision environmental simulation test equipment)

The salt fog chamber is the core instrument for evaluating the corrosion resistance of materials and protective coatings. Its measurement repeatability and reproducibility are directly affected by installation quality.

25.02

How to Conduct and Assess the Sealing of a High-Temperature Test Chamber

A high-temperature test chamber is equipped with a specialized sealing system, which primarily functions to seal the test chamber door.

25.03

Exploring the Causes of Defrosting in Thermal Shock Test Chambers

Frost formation in a thermal shock test chamber is a sublimation phenomenon where moisture inside the chamber condenses under low-temperature conditions. But why does this happen? Is it simply because the chamber temperature is too low?

24.07

LINPIN Instruments in Action for Large-Scale Equipment Renewal

Recently, China issued the Action Program for Promoting Large-scale Equipment Renewal and Consumer Goods Trade-in (hereinafter referred to as the Action Program), which systematically deploys 20 specific measures around the implementation of the four major actions of equipment renewal, consumer goods trade-in, recycling, and standard enhancement. Since the release of the Action Program, provinces and municipalities have responded to the policy by gradually promoting the relevant work and formulating provincial and municipal plans to promote large-scale equipment renewal and consumer goods trade-in.