SAIC

A constant temperature and humidity test chamber consists of multiple components, and any malfunction can disrupt testing. Previously, we discussed troubleshooting methods for other issues. Today, we focus on expansion valve failures.

Previously, we discussed several factors that affect the test results of high and low temperature alternating test chambers. One critical factor is the sealing performance of the equipment, as poor sealing can lead to the following issues

During the past twelve months, several third-party testing bodies and OEM laboratories reported the same problem: when running dust tests in accordance with GB/T 4208, IEC 60529 or MIL-STD-810, the batch cycle has stretched from 48 h to 72 h, even 96 h, while energy consumption has risen by more than 30 %.

Providing a stable and continuous voltage to the constant temperature and humidity test chamber is essential for ensuring its proper operation. To achieve a stable current supply, the device's power must be correctly connected to the circuit. So, how is this done?

The refrigeration compressor is one of the core components of a high/low-temperature test chamber, and its selection is closely related to the test results. In fact, semi-hermetic compressors are commonly used in these chambers. Why is this the case? Today, we will explore the three main reasons.