Xenon lamp weathering test chamber

Test Principle

Artificial weathering of coatings or exposure of coatings to filtered xenon-arc radiation is carried out in order to obtain the degree of change in as elected property after a certain radiant exposure H, and/or the radiant exposure which is required to produce a certain degree of ageing. The properties selected for monitoring should preferably be those which are important for the practical use of the coatings. The properties of the coatings exposed are compared which those of unexposed coating prepared from the same coating materials at the same time and in the same way (control specimens)or with those of coatings exposed at the same time whose behavior during testingin exposure apparatus is already known (reference specimens).

 Xenon Lamp light can emulate the effect of sunshine,while water spray system can emulate the effects of rain and dew. During the test, radiation energy and temperature are controllable. A typical test cycle generally carries out under strong irradiation of Xenon light and periodic precipitation. These tests generally appliedin the fields of paint and coatings,automotive industry, plastic, wood, glue,etc…

SANWOOD Xenon lamp aging test chamber（here in after referred as B-SUN）use Xenon lamps as artificial light source, and canmodify the full spectrum sun light. Controlling the temperature, humidity .It sinner temperature and humidity can be properly controlled to obtain the periodic precipitation on the sample for fully evaluating the damaged factor caused by sunlight, moisture and temperature (materials aging phenomenon includes fading, disluster, intensity reduction, racking, flaking, chalking, and oxidation). 

Characters

■ Xenon test chamber have Three xenon lamps imported from America can offer higer irradiance energy, meet with all test strandards’ requirements.
■ Can set and control automatically the relative humidity of working room.
■ The test procedures can be programmed freely; and up to 16 predetermined procedures can be saved in one time. Every procedure includes up to 10 segments setting data.
■ Can set the cumulative energy （total irradiance energy）obtained by sample to finish a test procedure.  
■ With spray function, can set spray time and spray interval time.
■ Irradiance energy can be accurately controlled. The "Sun Eye" control system can automatically compensate the change of light intensity caused by ageing or other factors.
■ Users can easily calibrate and adjust the irradiance or the blackboard temperature by themselves.
■ With High precision Pt100 Temperature sensor. Blackboard temperature is auto-controlled during the whole process
■ Over temperature, over heating load,big error for irradiance, auto shut-down protection when opening door.
■ Touch screen and user-friendly operation interface allow operator to set the test parameters and monitor all the test process easily.
■ Specimen mounting and evaluation is fast and easy With unique slide-out specimen tray
■ Real-time data can be collected and recorded. The incidental USB connector allow users to copy the test data into a USB drive, achieving unattended operation. 

Test Standards     

ISO 11341《Paints andvarnishes-Artificial weathering and exposure to artificial radiation--Exposure to filtered xenon-arc radiation》

ISO 12040《Graphic Technology -Prints and Printing Inks - Assessment of Light Fastness Using  Filtered Xenon Arc Light

ASTM G151《Standard Practice for Exposing Nonmetallic Materialsin Accelerated Test Devices that Use Laboratory Light Sources》 

ASTM G155《Practice for Operating Xenon Arc Light Apparatus forExposure of Non-Metallic Materials》

ISO 4892-1《Plastics – Methods of Exposureto Laboratory Light Sources – Part 1: General guidance》

ISO 4892-2《Plastics - Methods of Exposure to Laboratory LightSources - Part 2: Xenon-arc lamps》

SAEJ 2412《Accelerated Exposure of Automotive Interior TrimComponents Using a Controlled Irradiance Xenon-Arc Apparatus》

Main Technical Parameters

■ Xenon Lamp: Three 1.8KW xenon lamps （imported from America or Chinese lamp）
■ Fliter: Daylight filter （Also can choose extended UV filter or window glass filter）
■ Lamp Lifetime: Near 1,500 hours
■ Exposure Area: 2,800 cm2 (can put 27 standard samples 150×70mm)

■ Adjustable Irradiance Range:
    0.3～1.0 W/m2 (Single point of control: 340nm)
    0.5～1.8 W/m2 (Single point of control: 420nm)
    30 W/m2～120 W/m2 (Full spectrum: from 300～400nm)

■ Controlling irradiance point：340nm or 420nm or 300nm～400nm（show at the same time）
■ Adjustable Black Board Temperature Range：RT+20℃～90℃
■ Adjustable relative humidity of working room: 30%～75% (Light) ; 50%～95% (Dark)
■ Interior Material of Chamber: Stainless steel -SUS 304 material
■ Exterior Material of Chamber: Powder coating 
■ Overall Size: 940×940×1850 mm
■ Weight: 300 kg
■ Power Supply：AC 380V，50 or 60HZ；Max. Current 12 A（Also can choose single phase 220V，Max. Current 36 A）