UV WEATHER TEST CHAMBER
What is the UV Weather Test Chamber?
The UV weather testing chamber system is a laboratory simulation of the forces that quickly destroy nature, predicting the relative durability of non-metallic materials when directly exposed to the action of the weather. It has independent compartments for flat and larger specimens. As they are independent, in this equipment it is possible to carry out a simultaneous test with different light sources. Example: Ultraviolet or Ultraviolet B. For this, both tests must have the same configuration. The UV Weather Test Chamber makes use of a UV lamp and condensation mechanism to simulate sunlight, dew, and rain, thus reproducing subsequent harmful effects such as color change, fading, yellowing, cracking, gloss loss, crazing, blistering, hazing, peeling, aging, oxidation, fragility, strength loss, etc.
Working Principle
The materials, when tested, are given several alternating UV and moisture cycles at certain temperatures to simulate an accelerated aging test, generating reproducible and reliable weathering data in just a few days or weeks. If the same procedure is produced without the use of the UV accelerated aging chamber, outdoors, the test may take months or years, which is not feasible. During the process, the equipment automatically monitors the UV temperature, water temperature, and the irradiance controller used to regulate and stabilize the irradiance at desired values.
Standard:
Common standard: ISO 4892-1, ASTM G151, ASTM G154, JISD0205• SAEJ2020
Paint Standard: ASTM D3794 ,ASTM D4587 ,FED-STD-141B ,GM 9125P • JIS K 5600-7-8 ,ISO 11507
ISO 20340 ,M598-1990 ,NACE TM-01-84 ,NISSAN M0007 ,PrEN 927-6
Adhesive glue Standard:
ASTM C1184 ,ASTM C1442 ,ASTM D904 ,ASTM D5215 ,UNE 104-281-88
Plastic Standard:
ISO4892-3 ,ANSIC57.12.28 ,ANSI,A14.5 ,ASTMD4329 ,ASTMD4674 ,ASTMD5208 ,ASTMD6662 , DIN 53384 ,JUI K 3750 ,UNE35.104
Roofing materials standards:
ANSI/RMAIPR-1-1990 ,ASTM D4799 ,ASTM D4811 ,ASTM D3105 ,ASTM D4434 ,BS D5019
BS 903: PartA54 ,CGSB-37.54-M ,DIN EN534
Printing, Ink material standards:
ASTM D3424 ,ASTMF1945
Fabrics Standards
AATCC TM 186, ACFFA Guideline
Features :
- The UV weathering test equipment employs special fluorescent lamps to simulate UV light at special critical frequencies to reproduce the damage commonly caused by sunlight. It is a piece of easy-to-use and low-maintenance equipment. The sample surface is parallel to the UV lamps.
- The outer case is made of stainless steel and CNC machined for a smooth appearance. Inside the chamber, there is a channel to improve airflow and temperature stability.
- Eight UV lamps are mounted on two sides of the test chamber.
- The UV accelerated aging test chamber adopts the channel water heating method to realize rapid heating and even heat distribution, and the automatic water supply system provides more protection to the heating pipes.
- This instrument consists of high-quality casters and the sample holders are made of stainless steel and aluminum alloy.
- An automatic sprinkler is placed inside the spray system to adjust the water pressure, while a multi-color touch screen or high-performance PID controller is employed.
- For safety reasons, various protection functions are offered, such as circuit breakers, overload protection, short circuit protection, over-temperature protection, and water shortage protection.
Technical Characteristics
- Internally mirrored for greater uniformity distribution of light radiation
- Air circulation to ensure a constant temperature in the sample display area
- Automatic closing that prevents the opening of the door during the test
- Hour meter to control the use of lamps to indicate the appropriate time to change them
- Economical replacement lamps, easy access, and do not require the use of filters
- Control and temperature reading via PT100 sensor with 0.1C resolution
- CFC-free ecologically correct refrigeration system
- Thermal insulation with low-temperature dissipation and door built with magnetic seal
- Lamp systems located at the top of the equipment with easy access for maintenance
- Micro-processed temperature control with four-digit digital indication and 0.1C resolution
- Configurable alarm system for maximum, minimum, and temperature differential
- Software with programmable digital timer
Technical Specifications
| Parameters | Specification |
| Internal dimension (W*D*H) | 1140*650*500mm / 1300*500*1460mm |
| External dimension (W*D*H) | 1340*700*1800mm |
| Chamber material | SS 304 |
| Temperature range | Ambient to 70℃ |
| Temperature fluctuation | ≤±1.0℃ |
| Temperature uniformity | Approx. 3℃ |
| Humidity range: | ≥75%RH |
| Controller | Programmable controller, LCD touchscreen |
| Control mode | Balance temperature & humidity control |
| Test cycle setting | Exposure, condensation, and water spray test cycle is programmable |
| Water spray cycle | Spray 18mins in every 120mins / spray 12mins in every 60mins |
| Water usage | 8L/day |
| Distance from sample to lamp | 55±2mm |
| Centre distance between lamps | 65~70mm |
| Irradiance range | 0.45~0.95W/m2 |
| UV lamps | UV-B: 280-315nm (8pcs, 1600h lifetime) |
| Lamp power | 40W/Piece |
| Specimen Size | Irregular sample |
| Testing time | 0~999H, adjustable |
| Protection system | Overload short circuit protection/ Temperature Overshoot protection/ Low Water Protection/ Earth leakage protection/ Auto shut-off protection |
Simulating the Effect of the rain and dew
Material kept outside comes into contact with humidity for more than 12 hours. According to the research outside humidity is considered as dew, not rain. The accelerated weathering test chamber uses several condensation theories to imitate outside humidity effects.
Yatherm test chamber has an inbuilt water storage tank with ISI mark SS 304 heaters to produce steam inside the chamber. The machine is designed in such a way to ensure test sample must constitute the chamber’s side wall, The Test will be exposed inside the indoor atmosphere. Inside-chamber cooling makes the sample surface cool and lowers the temperature. Temperature difference causes the test sample to surface liquid in the condensation cycle.
Condensation water generated inside the chamber is pure distilled water which improves the efficiency and saves the machine from salt deposition. We always suggest each condensation cycle of the accelerated weathering tester must be for 12 hours. Please ensure the exposure of condensation and UV must proceed respectively.
APPLICATIONS
- Electronics Industry
- Pharmaceutical Industry
- Cosmetics Industry
- Paint and Ink Painting
- Automobile Industry
- Printing and Packaging industry
- Metal Industry
- Plastic Industry
This unit creates a man-made atmosphere that can simulate Sunlight, Rain & condensation which could result in damaged samples by exposure to UV light, Moisture & heat.
UV weather Test chamber provides the results of damaged samples after several days or weeks which we generally get outside after a few months. These results are explained based on discoloration, cracks, brittle, fading & decrease of strength. These results help in the improvement of the material quality in terms of durability.
TO LEARN MORE ABOUT UV WEATHER TEST CHAMBER
If you have any questions or doubts about the UV Weathering Test Chamber and how it works?
Get in touch and talk to one of our experts. Contact us for our expert’s help!
WHY CHOOSE YATHERM SCIENTIFIC’S UV WEATHER TEST CHAMBER?
If your laboratory needs to perform tests according to specific standards, use specific devices, or even adapt existing instruments to meet your customer's internal standards, please contact us. Yatherm Scientific is the leading and most trusted firm in India, we provide UV Weather Test Chambers, laboratory equipment, and analytical instruments at the best prices and provide technical detailed information, demonstrations, and quotations, so you can make the best possible decision.
