Descriptions:

UV weather resistance test chamber is equipped with fluorescent UV lamp which can completely simulate the UV spectra of sunlight, exposes materials to alternating cycles of UV light and moisture at controlled, elevated temperatures. It simulates dew and rain with condensing humidity and/or water spray.

The UV weather resistance test chamber is the world's most widely used weathering tester to test types of damages include color change, gloss loss, chalking, cracking, crazing, hazing, blistering, strength loss and oxidation.

 

Models:

Model UV/basic 

UV/basic uses fluorescent UV lamps and a condensation system for moisture simulation, does not include the SOLAR EYE irradiance control. 

Model UV/se
UV/se is the most popular model features the SOLAR EYE Irradiance Control, for precise maintenance of UV light intensity.  The UV/se tester uses a proven condensation mechanism to simulate outdoor moisture attack.

Model UV/spray 
The UV/spray has the same functions as a standard UV/se, but also includes a water spray system. Short periods of spray can be used to create a thermal shock. Longer periods can be used to achieve mechanical erosion.

Model UV/cw 
Some industry test methods specify the use of cool white fluorescent lamps for indoor photostability testing. To reproduce these indoor light conditions, the UV/cw uses ordinary cool white fluorescent lamps.  It has a SOLAR EYE irradiance control system that monitors and controls visible light output, rather than UV.

 

 

Testing Standards

UV weather resistance test chamber conform a large number of international standards, including but not limited to:

1, ASTM D4799-03 Standard Practice for Accelerated Weathering Test Conditions and Procedures for Bituminous Materials (Fluorescent UV, Water Spray, and Condensation Method)

2, ASTM D6662, Plastic Lumber Decking Boards  

3, ASTM G154 Standard Practice for Operating Fluorescent Light Apparatus for UV Exposure of Nonmetallic Materials

4, ASTM D4587-2005 Standard Practice for Fluorescent UV-Condensation Exposures of Paint and Related Coatings

5, BS EN 927-6:2006 Paints and varnishes — Coating materials and coating systems for exterior wood — Part 6: Exposure of wood coatings to artificial weathering using fluorescent UV lamps and water

6, ISO 11507 Paints and varnishes – Exposure of coatings of artificial weathering – Exposure to fluorescent UV lamps and water

7, ISO 4892-3 Plastics – Methods of exposure to laboratory light sources – Part 3: Fluorescent UV lamps

8, SAE J2020 (R) Accelerated Exposure of Automotive Exterior Materials Using a Fluorescent UV and Condensation Apparatus

9, JIS K7350-3-2008 Plastics -- Methods of exposure to laboratory light sources -- Part 3 Fluorescent UV lamps

10, AATCC Test Method 186-2000Weather Resistance: UV Light and Moisture Exposure

 

 

Optional Lamps Type:

 

UVA-340	Especially suitable for comparison tests of the different formulations. Recommended for most plastics, textiles, paints, pigments, and UV stabilizers and other products testing, as also outdoor test results correlation test.
UVB-313EL	Suitable for the quality control and research, development applications, recommended for the testing of some durable materials, such as roofing paint.
QFS-40 (F40 UVB)	Test the vehicle exterior paint.
UVA-351	Suitable for the glass solar UV simulation, Recommended for use in automotive interior parts, textiles and ink testing.

 

Specification:

Workroom Dimensions	1150×400×400  (W×H×D) mm
Exterior Dimensions	1312×1500×500 (W×H×D) mm
Controller	LCD touch screen control, programmable of temperature, humidity, UV (sun), spray (rain) and time. Maximum 999 cycles.
Temp. Range	RT＋10℃～70℃
Humidity Range	≥95％R.H
Temp. Resolution	0.01℃
Temp. uniformity	≤±2℃
Humid. fluctuation	≤±2％R.H
Humid. Uniformity	≤±2％R.H
Blackboard temperature	63℃～83℃±0.3℃
Distance between Lamps	70mm
Distance of Lamps and samples	50mm
Lamp power	40W
UV wavelength	290nm～400nm
Specimen standard dimension	150×75（mm）
Number of Specimens	48 pcs
Range of Radiation	0.5-0.83w／m²/nm

 

The SOLAR EYE system

Most UV weather resistance test chambers are equipped with solar eye irradiance control. It is a precision control system that automatically maintains light intensity through a feedback loop. The controller monitors UV intensity and compensates for lamp aging and variability by adjusting power to the lamps. 

 

Controls Irradiance

△      Monitors light intensity

△      Maintains preprogrammed intensity

△      Maximizes repeatability & reproducibility

Extends lamp Life

△      Operates lamps until set point can’t be maintained

△      Reduces maintenance

Accelerate Results

△      maximizes effects with high irradiance

△      operates at 75% higher irradiance than noon, summer sunlight

ตู้ทดสอบอุณหภูมิความชื้น QTH-80A, เกลือหอการค้าทดสอบสเปรย์ QSS-270, ช็อกความร้อนห้องทดสอบ QT3-56A, ห้องทดสอบทางด้านสิ่งแวดล้อม QTL-80A