This chamber enables accelerated testing by exposing samples to cycles of UV irradiation and high humidity condensation, helping evaluate material durability in a matter of days or weeks. It is widely used across industries like automotive, construction, electronics, and textiles to assess the long-term weather resistance of plastics, paints, coatings, rubber, and fabrics.
Test standard for UV Weathering Resistance Test Chamber -Box Type
ASTM G154, ISO 4892-1, ISO 11507, ASTMD 4329
Technical Specifications of UV Weathering Resistance Test Chamber -Box Type
| Model | TT-UV504B | |
| Internal Dimensions (mm) D*W*H | 1140×640×690 | |
| Overall Dimensions (mm) D*W*H | 1300×700×1630 | |
| Interior Volume (L) | 504L | |
| Parameter | Temperature range | Temperature range: RT +10 ℃ ~ 70 ℃ |
| Temperature fluctuation | ± 0.5 ℃ | |
| Temperature resolution | 0.1 ℃ | |
| Lamp Center Distance | 70 mm | |
| UV Lamps | Optional: UVA-340 (315–400 nm) or UVB-313 (280–315 nm) ATLAS brand UVA-340, USA; Wavelength: 315–400 nm; Peak: 340 nm; ATLAS brand UVB-313:Wavelength: 230–315 nm; Peak: 313 nm; 8 lamps, 40W each, 1200 mm length, 38 mm diameter | |
| Blackboard thermometer Measuring Range | 0～80℃ | |
| Blackboard thermometer Accuracy | ± 2°C | |
| Irradiance Intensity | 0.30-1.0W/ m²(adjustable) | |
| Irradiance Control | Real-time feedback through irradiance sensor; PID control of lamp brightness via PLC and ballast voltage regulation | |
| Water Spray Cycle | 1~99H59M (Adjustable) | |
| Water Supply System | Water Automatic Controlling | |
| Clean or distilled water, approx. 8L/day (provided by user) | ||
| Water purification system | ||
| Controller | Programmable color LCD touch screen controller | |
| Ethernet connection, USB | ||
| Sensor | Two independent UV sensors (solar eyes) | |
| Control System | PLC controller | |
| Material | Interior material | SUS304 stainless steel plate |
| Exterior material | SUS304 stainless steel plate | |
| Power Supply | AC220V±10%, 50/60HZ, 3.5kW | |
| Safety Device | n Fan/duct overtemperature protection n Dry-fire protection for shallow water tray heating element n Low water level alarm & protection (for tank) n Water flow failure alarm & protection (for tank) n Short-circuit protection & overcurrent protection | |
Core Function of UV Weathering Resistance Test Chamber -Box Type
1. Irradiation System (Simulated Sunlight)
Light Source
- Equipped with 8 imported 40W UV fluorescent lamps (ATLAS, USA).
- Supports both UVA-340 and UVB-313 lamps for flexible testing.
Solar Eye Irradiance Control System
- Automatically maintains precise UV irradiance for accurate and repeatable test results.
- Uses a closed-loop feedback system to monitor and adjust lamp output, compensating for lamp aging and intensity changes.
- Enhances test consistency, reproducibility, and lamp lifespan by continuously controlling UV light intensity.
UVA-340 Lamps
- Wavelength range: 315–400 nm with a 340 nm peak.
- Accurately simulates natural sunlight in the short-wave UV range.
- Reference irradiance: 0.68 W/m² for accelerated weathering tests.
UVB-313 Lamps
- Wavelength range: 280–315 nm with a 313 nm peak.
- Provides faster accelerated aging for quality control and durable material testing.
- Reference irradiance: 0.67 W/m².
UV Cycle Temperature Control
- Integrated blower, air heater, air distribution system, and black panel temperature sensor.
- Ensures uniform temperature distribution and precise environmental control for reliable and repeatable testing.
2. Condensation system (simulating dew)
- Simulates 100% humidity by generating steam inside the test chamber.
- Water is heated in the tray to produce vapor, which condenses on the specimen surface.
- The condensed water flows back into the tray, providing continuous moisture exposure for realistic weathering tests.
3. Water Spray System (Simulated Rain)
- Features a high-power water pump, five spray nozzles, control valves, and drainage system.
- Sprays water directly onto test samples to simulate rain, thermal shock, and surface erosion.
- Ensures realistic weathering conditions for accelerated durability testing.
4. Control System
- Controller (Model): Programmable touchscreen controller TESTRON1200
- Display: 7-inch true-color touchscreen and Lan connection and USB Port.
- Operating Modes: Program mode, Constant (fixed) mode
- Input Method: Chinese menu with touchscreen input
- Program Capacity:
- 120 program groups
- Each group contains up to 120 segments
- All programs support looping, up to 9,999 cycles
- Black Panel Temperature Monitoring:
- Equipped with a standard Pt-100 black panel temperature sensor for precise control of sample surface temperature during testing.
- Additional Functions:
- Fault alarm with cause and troubleshooting prompts
- Power failure protection
- Timer function (auto start and stop)
- Self-diagnosis function
5. Heater
- Heater material: Stainless steel 304 finned electric heating tube
- Heater control method: Contactless equal-cycle pulse width modulation (PWM), SSR (solid-state relay)
6. Humidifier
- Humidification method: Shallow water pan heating
- Humidifier material: Stainless steel armored casing
- Humidifier control method: Contactless equal-cycle pulse width modulation (PWM), SSR (solid-state relay)
- Humidifier components:
- Water level control device
- Dry-fire protection device for heater
7. Protection System
- Fan/duct overtemperature protection
- Dry-fire protection for shallow water tray heating element
- Low water level alarm & protection (for tank)
- Water flow failure alarm & protection (for tank)
- Short-circuit protection & overcurrent protection
