Lenpure Air-cooled Xenon Aging Test Chamber adopts xenon arc-lamp which can realize full wavelength of natural sunlight to the most extent, so that to reappear destructive light radiation of different environment. Also can simulate rainfall, high & low temperature and moisture of natural environment, so that it can perform extremely realistic accelerated weathering test on material and coating layer
Four test specimens are prepared in U-shaped aluminum channels. After curing, three of the specimens are exposed in the laboratory accelerated weathering device and the fourth specimen is stored under standard conditions as an unexposed file specimen. At the end of the exposure period, the specimens are examined for chalking, color change, center cracking, edge cracking, and loss of adhesion versus the unexposed file specimen.
It is difficult to establish a precise correlation between laboratory accelerated and natural weathering because of geographical climatic variations, local weather variation from normal, and local pollutants and the fact that the acceleration factor is material dependent, varying with the type of material as well as its formulation. This test method is used to determine the resistance of a sealant to laboratory accelerated weathering and, if a control material with known outdoor weathering performance is used, the relative weathering performance of the sealant against that of the control material.
This test method includes two laboratory accelerated exposure procedures for predicting the effects of ultraviolet or ultraviolet/visible radiation, heat, and moisture on color, chalking, cracking, and adhesion of solvent-release sealants.
Lenpure Air-cooled Xenon Aging Test Chamber adopts xenon arc-lamp which can realize full wavelength of natural sunlight to the most extent, so that to reappear destructive light radiation of different environment. Also can simulate rainfall, high & low temperature and moisture of natural environment, so that it can perform extremely realistic accelerated weathering test on material and coating layer
Four test specimens are prepared in U-shaped aluminum channels. After curing, three of the specimens are exposed in the laboratory accelerated weathering device and the fourth specimen is stored under standard conditions as an unexposed file specimen. At the end of the exposure period, the specimens are examined for chalking, color change, center cracking, edge cracking, and loss of adhesion versus the unexposed file specimen.
It is difficult to establish a precise correlation between laboratory accelerated and natural weathering because of geographical climatic variations, local weather variation from normal, and local pollutants and the fact that the acceleration factor is material dependent, varying with the type of material as well as its formulation. This test method is used to determine the resistance of a sealant to laboratory accelerated weathering and, if a control material with known outdoor weathering performance is used, the relative weathering performance of the sealant against that of the control material.
Feature
▪High performance and quiet operation (20~ 70 dBa)
▪Touch-screen controller, user-friendly
▪Import Q-Lab air-cooled Full spectrum xenon lamp, more economical, more
efficient and easier to maintain. Lamp life of 1800 hours.
▪The flat sample mounting tray can accommodate different shapes and sizes
of samples, including 3D parts. There are a variety of sample stents to choose from
▪The irradiance control system continuously monitors and controls the output of the
light, which ensures accurate exposure and repeatable test results.
▪Allows the user to simultaneously control and monitor relative humidity,
blackboard temperature and air temperature in the box.
▪All circuits fused or circuit breaker protected, overload protection.
▪All wiring numbered or color coded
▪ Tri-color Indicator and EMO (Emergency-off Switch) available
The test procures are as followers:
1. Condition sufficient compound in an original closed container for at least 24 h at standard conditions.
2. Block the ends of the U-channels with masking tape and overfill the entire channel with conditioned compound from the bottom up being careful to avoid air entrapment.
3.Strike the channel off flat with a spatula. Do not remove the masking tape. It is to stay in place for the entire test. Removing it may disturb the uncured or cured sealant.
4.Cure the test specimens at standard conditions for 21 days.
5.Procedure for Fluorescent UV/Condensation Apparatus—Operate the device in accordance with the procedure of Practice . Remove the specimens from the apparatus after a minimum of 1000 h of exposure.
6. Procedure for Xenon-Arc Apparatus—Operate the device in accordance with the procedure in Section 7.2 of Practice C1442. When operated at the preferred irradiance level of 0.51 W(m 2 · nm) at 340 nm, remove the specimens from the apparatus after a minimum of 1000 h (1835 kJ/(m 2 nm) at 340 nm).
7. Condition the samples at standard conditions for 2 h. Inspect the specimens for chalking, color change, center cracking, edge cracking, and loss of adhesion versus the unexposed file specimen.
8. Compare the effect of exposure on the test specimens with the effect on the control material, if used, to determine the relative performance of the test material.
Here are specifications you need to consider when choosing the xenon lamp test chamber.
| Model | Volume (L) |
Temperature Range (°C) |
Rated Power | Internal Dimension (mm) D*W*H | External Dimension (mm) D*W*H |
| LRHS-190F-SN | 190 | RT10°C ~ 70°C | 14.5kw | 500*760*500 | 1220*1270*1650 |
| Basic Specification | |||||
| Performance | Temperature Range | RT10°C ~ 70°C | |||
| Temperature Fluctuation | ±0.5°C | ||||
| Temperature Uniformity | ±2.0°C | ||||
| Blackboard / Black Standard Temperature | 60°C ~ 100°C | ||||
| Humidity Range | 65% ~ 99% | ||||
| Humidity Deviation | +2 / -3% R.H | ||||
| Spray Nozzle Dia | Ф0.8mm | ||||
| Rainfall Pressure | 0.12～0.15Mpa | ||||
| Rainfall Time | 1～999m, adjustable | ||||
| Spray period | 18min/102min or 12min/48min | ||||
| Illumination period | 1～999h、m、s Continuous adjustable | ||||
| Sample holder size | 450×720mm | ||||
| Radiation Indensity | ≤550W/m2 | ||||
| Wave Length | 290～800nm | ||||
| Xenon arc lamp power | 2.5KW×3 pcs = 7.5KW | ||||
| Material | External Casing | Cold-rolled A3 (Q235) steel plates with plastics painted. | |||
| Interior Working Room | Stainless Steel Plates SUS304 with miror surface | ||||
| Heat Isolation | Polyurethane foams and fine glass fibres | ||||
| Illumination Lamp | Philips® one in per standard test chamber. | ||||
| Casters | 4pcs, with PU covered for protection. Height adjustable and direction universal. | ||||
| Viewing Window | Multi-layer hollow toughened glass with conductive films for heating to defrost | ||||
| Door | Manually operated sliding door with unlock button | ||||
| Heating & Cooling System | Heater | Steipped Nickel-chromium Wire Heater | |||
| Air Blower | Anti-temperature stainless fan blades with low noise | ||||
| Compressor | Hermetically-sealed Techmesh® or semi-sealed Bitzer® or GEA® or equivalent compressors | ||||
| Cooling Method | Single or dual cooling (Air-cooled or Water-cooled) | ||||
| Refrigerant | R404A or/and R23 (eco-friendly) | ||||
| Condenser | Plate-type heat exchanger | ||||
| Control System | Controller |
7" Programmable colorful touch-screen display LCD English Display Microcomputer integrated controller |
|||
| Temperature Sensor | Platinum Resistance.PT100Ω | ||||
| Standard Configuration | Test Chamber x 1, Specimen Holder platform x 1, Xenon arc lamp x 1 | ||||
| Safety Protection | Power leakage protection/Compressor over-heat, over-load or over-current protection/Dry burning protection. | ||||
| Voltage | AC220V/380V/440V±10%, 50Hz/60Hz or as per requirement | ||||
| Ambient Environmental for application | 5°C～+30°C ≤ 85% R.H | ||||
For more details, please feel free to contact sales@lenpure.com
Please visit www.lenpure.com
