UV Weathering Test Chamber Ultraviolet Light Accelerated Aging
Environmental Test Chamber
Standards & Clauses:
ASTMG53-77, GB, GJB, MIL, ASTM, CNS, IEC, JIS, AATCC, DIN, Fed
Test, BS, SAE and etc.
Samples and Restrictions:
Coating, ink, paint, resin, plastic, printing and packaging,
aluminum profiles, adhesives, automobile and motorcycle components,
cosmetics, metal, electronics, electroplating, medicine, etc.
Application:
In the UV ultraviolet accelerated aging tester, the fluorescent UV
lamps can reproduce the influence of sunlight, condensation and
water sprinkler systems reproduce the effects of dew and rain.
Temperature is controllable throughout the test cycle. Typical test
cycle includes ultraviolet light irradiation at high temperature
and relative humidity at 100% dark humid condensation; typical
applications in paints, automotive, plastics, wood, glue, etc.
Structure:
Features:
The inner and outer casing is made of high-quality stainless steel,
and the sample holder is composed of an aluminum alloy base lining
plate and stretching springs.
The main controller is an intelligent digital display controller,
easy for operation.
The input adopts digital correction system, built-in common
thermocouple, the measurement is accurate and stable.
With position adjustment , AI artificial intelligence adjustment
function, multiple alarm modes
Although ultraviolet light (UV) accounts for only 5% of sunlight,
it is the main illuminating factor for the decline of outdoor
durability, because the photochemical reaction of sunlight
increases with the decrease of wavelength, therefore, when
simulating the damage of sunlight to the physical properties of
materials, it is not necessary to reproduce the entire sunlight
spectrum, only necessary to simulate short-wave UV light.
The reason for using UV lamps is because they are more stable than
other tubes and can better reproduce the test results.
Adopts fluorescent UV lamps to simulate the effects of light on
physical properties, such as brightness reduction, fading,
spalling, etc.. UVA-340 is the high-quality choice of simulating
sunlight UV.
UVA-340 is an excellent simulation of the critical short-wavelength
wavelength range of the solar spectrum, that is, the spectrum with
a wavelength range of 295 to 360 nm. UVA-340 only produces a
spectrum of UV wavelengths that can be found in sunlight.
UVB-313 is used for maximum accelerated testing and UVB-313 can
quickly provide test results. The short-wavelength UV used is more
intense than the UV light waves currently found on the Earth's
surface. Although these UV light which is much shorter than the
natural wavelength, can accelerate the test to the maximum extent.
Exposure method: steam condensation.
After the specified irradiation time, then transfer to the
non-irradiated state of the simulated nighttime. At this time, the
surface of the sample is still heated by the saturated mixture of
hot air and water vapor in the exposed room, and the back side of
the sample continues to be subjected to the surrounding space. The
air is cooled to form an exposed state of condensation on the
surface of the sample.
Ultraviolet radiation sensor (optional).
The UV aging test chamber is equipped with an ultraviolet radiation
sensor, which is a high-precision photometric control system that
allows the user to select the desired illuminance, continuous
monitoring of the light intensity.
Technical Parameters:
| Working Dimensions | 1140mm*400mm*380mm | External Dimensions | 1300mm*500mm*1460mm |
| Condensation Temperature Range | 40 ° C ~ 60 ° C / temperature tolerance ± 3 ° C | Illumination Temperature Range | 50 ° C ~ 70 ° C / temperature tolerance ± 3 ° C |
| Center Distance of the Lamp | 70mm | Temperature Control Method | PID self-tuning temperature control mode |
| Temperature Resolution | 0.1℃ | Humidity Range | About 45%~70% R.H |
| Wavelength Range | UV-A wavelength range is 315~400nm UV-B wavelength range is 280nm~320nm | Sink Request | Water depth is not more than 50mm, and there is automatic water
supply controller |
| Radiation Intensity | Within 1W/m2/340nm | Standard Test Piece Size | 75×150mm 48pcs |
| The Closest Parallel Surface Distance from the Test Piece to the
Surface of the Lamp | Around 50mm | Recommended Use Environment | 5~35°C, 40%~85%RH, 300mm away from the wall |
| Blackboard Thermometer Measurement Range | 30~80°C/tolerance is ±1°C | Voltage | 220V±5%, single-phase three-wire, 50Hz, 10A, requires 15A leakage
switch |
