UV Weathering Test Chamber ZY-H302X

Product Applications

The ZY-H302X UV Weathering Test Chamber (also known as a UV Accelerated Aging Test Chamber, UV Aging Test Chamber, or Fluorescent UV Aging Chamber) is a specialized testing device that **simulates environmental factors such as ultraviolet radiation from sunlight, condensation, and rain spray** to reproduce, within a short period of time, the aging effects that materials would undergo over months to years in a natural environment.It accelerates the testing of aging phenomena such as fading, discoloration, cracking, chalking, crazing, embrittlement, oxidation, and loss of strength, making it a core piece of equipment for evaluating the weather resistance of non-metallic materials.

Common Testing Standards

International Standards：

ASTM G154 Standard Test Method for Fluorescent UV Exposure of Non-metallic Materials
ISO 4892-3 Laboratory Light Source Exposure Tests for Plastics—Fluorescent UV Lamps
ISO 11507 Paints and Varnishes — Fluorescent Ultraviolet and Water Exposure
AATCC TM 186 Weather Resistance of Textiles — Ultraviolet Exposure
SAE J2020 Ultraviolet Exposure Test for Automotive Exterior Trim

National Standards：

GB/T 16422.3-2022 Test Methods for Laboratory Light Source Exposure of Plastics—Fluorescent Ultraviolet Lamps
GB/T 1865-2009 Paints and Varnishes—Artificial Climatic Aging and Artificial Radiation Exposure
GB/T 14522-2008 Methods for Artificial Climatic Accelerated Testing of Plastics, Coatings, and Rubber Materials for Mechanical Engineering Products
GB/T 3512-2014 Vulcanized Rubber or Thermoplastic Rubber—Accelerated Aging and Heat Resistance Testing in Hot Air

Structural Features:

1. The chamber is manufactured using CNC equipment, featuring advanced craftsmanship, smooth lines, and an elegant, stylish appearance.
2. The chamber is constructed from 1.0 mm thick steel plate with a baked-on paint finish.
3. The heating method employs an internal water-tank system, ensuring rapid temperature rise and uniform temperature distribution.
4. The internal air ducting employs a single-cycle system with one imported axial fan, which increases airflow and heating capacity, significantly improving the temperature uniformity of the test chamber.
5. Water source and consumption: 8 liters of purified water or distilled water per day.
6. The drainage system utilizes a vortex-type and U-shaped sedimentation device for drainage, making it easy for users to clean.

Light Source Description:

1. The light source consists of eight UV-series fluorescent tubes with a rated power of 40W, mounted on the top of the machine (imported tubes are available as an option).
2. The distance between the sample surface and the plane of the UV lamp is 50 mm, and the two are parallel.
3. Users can choose between UV-B313 and UV-A340 light sources (select one).
4. The spectral energy of the UV-A340 lamp is primarily concentrated around a wavelength of 340 nm.
5. The spectral energy of the UV-B313 lamp is primarily concentrated around a wavelength of 313 nm.
6. Lamps: Specialized UV lamps, 8 in total, 40W each.
7. Since the light output of fluorescent lamps gradually decreases over time, to minimize the impact of this decline on test results, one old lamp is replaced with a new one every quarter of the total lamp lifespan. This ensures that the UV light source always consists of a mix of new and old lamps, thereby maintaining a constant light output.

Control System:

1. Black aluminum plates are used to connect the temperature sensors, and a black panel temperature controller regulates the heating, ensuring more stable temperatures.
2. Accessories: 1 stainless steel sample rack for adjusting the distance between the sample and the lamp tube.
3. Temperature and humidity control method: Balanced Temperature and Humidity Control (BTHC).
4. Controller: Youyi touchscreen programmable controller.
5. Exposure Methods: Moisture condensation exposure, light radiation exposure.
6. Temperature Controller: Utilizes an intelligent programmable controller for high precision and stable control.
7. Timer Controller: Uses a programmable controller that automatically switches between light exposure and condensation periods. The control time can be set to any value within 1,000 hours.
8. Water Supply Method: Manual and automatic water replenishment to meet diverse needs.
9. Communication: Supports bidirectional connectivity (RS232 communication interface).
10. Safety Protection: Power supply equipped with a ground fault circuit interrupter (GFCI); control circuit overload and short-circuit alarms; over-temperature alarm; low-water protection.
11. Irradiance Control: Dual-channel irradiance control for front and rear lamps; no manual adjustment required; automatically controlled based on set values to ensure stable irradiance throughout the experiment. (Optional)