The relative humidity in a high and low temperature constant temperature and humidity test chamber is a critical parameter in environmental testing equipment. Accurate and reliable measurement of relative humidity plays a vital role in ensuring consistent and controlled environmental conditions, which are essential for product reliability and performance evaluation.
According to the national standard GB2423.1, the temperature tolerance range for low-temperature testing in such chambers is ±3°C. However, this does not mean that each point in the workspace must strictly adhere to this tolerance at all times. It's important to note that a ±2°C temperature tolerance refers to an allowable deviation, not a setting range. For example, if a test requires a nominal temperature of 50°C with a ±2°C tolerance, the actual temperature can fluctuate between 48°C and 52°C. But when setting the environmental parameters, the control system should only be set to 50°C, not 52°C or 48°C, as the tolerance allows for minor variations due to system drift or non-uniformity within the chamber.
Similarly, under military standards like GJB150, the maximum temperature gradient allowed is 2.2°C. This highlights the importance of maintaining a uniform temperature field across the test chamber. The temperature tolerance should never be misinterpreted as a setting range. Proper calibration and regular maintenance are crucial to ensure that the chamber meets these specifications consistently.
Yashilin brand high and low temperature constant temperature and humidity test chambers are designed and manufactured according to multiple national standards, including GB/T 2423.1-2008 (low temperature test method), GB/T 2423.2-2008 (high temperature test method), GB/T 2423.3-2006 (constant heat and humidity method), and GB/T 10586-2006 (dry heat test chamber technical conditions). These chambers are capable of conducting a wide range of environmental tests, including high and low temperature, humidity, and combined thermal cycling tests.
Each Yashilin constant temperature and humidity test chamber is produced in Beijing, ensuring high-quality craftsmanship and compliance with international testing requirements. Whether for industrial, research, or quality assurance purposes, these chambers provide precise and stable environmental conditions necessary for accurate product testing.
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