Description

PW-CUV40H UV Aging Chamber

I. Product Application:

The UV aging test chamber simulates the destructive effects caused by sunlight, rain, and dew. It tests materials by exposing them to controlled high-temperature cycles of UV radiation and moisture. UV lamps are used to simulate solar radiation, while condensation and water spray simulate dew and rain. Within just a few days or weeks, the UV aging equipment can reproduce the damage that would occur outdoors over several months or even years. This includes fading, color changes, loss of gloss, chalking, cracking, crazing, blistering, embrittlement, reduced strength, and oxidation. The test results can be used to select new materials, improve existing materials, or evaluate changes in material formulations.

 

II. Equipment Features:

1. Capable of conducting individual irradiation, condensation, or water spray tests, as well as programmable combinations of irradiation/condensation/water spray tests.
2. Provides comprehensive real-time monitoring and curve recording of important test parameters such as irradiance, temperature, and time. Reports and curves can also be generated and printed via a computer.
3. Equipped with a 7-inch true-color touch screen control system from Taiwan, which offers excellent stability, monitoring, operability, and maintainability.
4. Provides a lifespan reference for the UV lamps (which are consumables with an approximate lifespan of 1,000 hours), facilitating user confirmation of lamp replacement time and reducing usage costs.
5. Features an automated water supply and drainage design, coupled with a high-cost, high-power water pump to ensure the flow rate and uniformity of water spray.
6. The majority of the main components are sourced from international brands, with a small portion from domestic brands, enhancing the product’s safety and reliability.
7. The electrical installation and wiring of the equipment comply with international electrical standards.

 

III. Principle and Function

• The UV weathering test chamber employs fluorescent UV lamps as the light source. It accelerates the weathering test of materials by simulating UV radiation and condensation from natural sunlight to obtain the weathering results of materials. This chamber can simulate environmental conditions such as UV radiation, rain, high temperature, high humidity, dew, and darkness in natural climates. By reproducing and combining these conditions into a cycle that runs automatically for a set number of repetitions, the UV aging test chamber operates.

 

IV. Technical Parameters

• Chamber Dimensions: 650×1140×550 mm (D×W×H)
• Overall Dimensions: 700×1300×1640 mm (D×W×H)
• Temperature Uniformity: ≤±2℃
• Temperature Fluctuation: ≤±0.5℃
• Standard Specimen Size: 75 mm×150 mm
• Temperature Range: RT+10℃～70℃
• Humidity Range: ≥95% RH
• Distance Between Lamps: 35 mm
• Distance Between Specimen and Lamp: Adjustable from 50 mm to 500 mm
• Lamp Type: UVA340
• Lamp Power: 40 W
• UV Wavelength Range: 290 nm～400 nm
• UV Exposure and Dew Simulation Time Range: 0～99 hours
• Specimen Plate Size: 150×75 mm
• Number of Specimen Plates: Approximately 40
• Test Time Range: 0～9999 hours (adjustable)
• Irradiance Range: ≤1 W/m² (optional adjustable feature)
• UVA Lamp: UVA-340 can emit wavelengths from 315 nm to 400 nm, with a radiation peak at 340 nm. It is particularly useful for comparative testing of different experiments and can best simulate sunlight in the short-wave UV band.
• Number of Lamps: 8
• Lamp Lifespan: 1000 hours (approximate)
• Structure and Materials:
• Outer Box Material: Stainless steel plate.
• Inner Liner Material: Heat-resistant stainless steel plate with a mirror finish

 

 

The UVA-340 lamp can best simulate sunlight in the short-wave ultraviolet band.

 

V. Protection System

• Power Leakage Protection
• Power Outage Protection
• Power Short-Circuit Protection
• System Over-Temperature Alarm Protection
• Power Supply Configuration: The machine uses a single-phase AC 220V, 50Hz power supply. The equipment is equipped with protective grounding, with a grounding resistance of no more than 4 ohms.
• Lighting System: UV-specific aging lamps

 

VI.Structure

1. Outer Box Material: Imported SUS stainless steel plate with spray plastic treatment.
2. Inner Liner Material: Imported SUS stainless steel plate.
3. Box Cover Material: Imported SUS stainless steel plate.
4. Eight UV lamps are installed at the top of the chamber.
5. Heating Method: Internal water tank heating in the inner liner, which provides rapid temperature increase and uniform temperature distribution.
6. Box Door: Opens from left to right, with smooth and easy operation.
7. Automatic Water Refill for Inner Liner Water Level.
8. Specimen Racks: Made of stainless steel material.
9. Base of the Test Chamber: Equipped with high-quality fixed PU casters.
10. Drainage System: Uses a vortex-type and U-shaped sedimentation device for drainage.
11. The distance between the specimen surface and the UV lamp plane is 50-500 mm and parallel, with adjustable distance.

 

VII. Heating System

1. U-shaped titanium alloy high-speed heating electric heating tubes are used.
2. Completely independent system, which does not affect UV testing and control circuits.
3. Temperature control output power is calculated by a microcomputer to achieve high-precision and high-efficiency power usage.
4. Over-temperature protection function for the heating system.

 

VIII. Blackboard Temperature Control

• Black aluminum plate connected to a temperature sensor is used.
• Blackboard temperature is controlled by a temperature controller, providing more stable temperature.

 

IX. Electrical Control System

The electrical control system uses a touch-mode microcomputer control method.

• Original Chinese and English touch screen human-machine interface (menu screen) controller, with powerful functions, precise and stable operation, and simple control. It can achieve parameter setting, segmented operation, cyclic running, fault alarm, and fault information display.
• The system uses PROPORTIONAL + INTEGRAL + DIFFERENTIAL + SSR control (i.e., proportional, integral, differential + electronic solid-state relay control method), which can improve the service life and stability of the control element interface.
• Touch-mode setting, with digital direct display, all conditions are fully locked by the microcomputer automatically.
• It has the function of automatic PID value calculation, which can reduce the inconvenience brought by manual setting.
• Various control conditions can be monitored during operation, such as instantaneous output power, temperature, and set values.
• If an error occurs during setting, an alarm signal will be provided.
• Power failure memory device for two years.

 

X. Light Source

• Eight UV fluorescent lamps with a rated power of 40W are used as the light source, distributed on the top of the machine. UVA-340 and UVB-313 light sources are available for user selection and configuration (choose one).
• The light spectrum energy of the UVA-340 lamp is mainly concentrated at a wavelength of 340nm.
• The light spectrum of the UVB-313 lamp is mainly concentrated around a wavelength of 313nm.
• Due to the gradual attenuation of fluorescent lamp energy output over time, to minimize the impact of light energy attenuation on the test, this test complies with current UV aging test standards such as GB/T14522-93, GB/T16422.3-1997, and GB/T16585-96.

 

XI.Equipment Operating Environment

1. Power Supply: AC 220V (±10%) / 50Hz.
2. Environment: 20～30℃ (recommended by ASTM G53), 0～80% RH, well-ventilated, and clean indoor environment.
3. Operating Space: 234×353 cm (including workspace for personnel).
4. Pure Water: Deionized water with a pressure of around 193 KPa, 18.5℃, and a flow rate of about 7 liters per minute. The total insoluble content should be less than 10 ppm.
5. Drainage: A floor drain is required near the main unit.