SAIC

A constant temperature and humidity test chamber is an instrument used to test objects under specific temperature and humidity conditions.

A thermal-shock chamber (TSC) is not an off-the-shelf climatic box. Its only purpose is to generate controlled temperature gradients and rapid transfer rates that reveal thermo-mechanical defects. A poor choice will distort test data, delay R&D, fail certification audits, or even trigger a product recall. This paper translates field experience into an engineering checklist for R&D, Quality and ESS engineers.

Dust testing, codified in GB/T 2423.37 and IEC 60068-2-68, is now mandatory for proving the sealing integrity and reliability of military, automotive, photovoltaic and rail-transit products. Direct test outlays—consumables, energy, labour and depreciation—seldom exceed one to three per cent of the selling price, yet hidden expenses triggered by poor chamber selection—repeat tests, invalid data or after-sales downtime—can leap to eight to twelve per cent.

Certain factors can impact the effectiveness of UV aging test chambers. Therefore, it is essential to remain vigilant and pay close attention to these factors during equipment operation. By continuously monitoring and improving these aspects, the efficiency of the equipment can be enhanced. Below, we examine these influencing factors.

When anomalies occur during operation, on-site personnel are advised to follow the four-step troubleshooting method “Symptom – Cause – Action – Verification.” Typical faults and their countermeasures are presented below for quick reference.