Multifunction UV Weather Tester

Introduction

BEVS 3380 Multifunction UV Weather Tester is suitable for the water exposure aging test of nonmetallic materials such as coatings. Ultraviolet rays in sunlight are the main factors causing oxidative degradation of polymers, and moisture is an important destructive factor accelerating aging.

Main Functions

Irradiation

Florescent lamps emit stable levels of UV with low failure rates. Their normal service life is 2000 hours. UVA-340 lamps and UVB-313 lamps are available to simulate the harmful UV in sunlight.

UVA-340 lamps realistically reproduce sunlight in the short-wave UV region, commonly used in photodegradation testing for outdoor products.

UVB-313 lamps give a simulation of short-wave UV, most of which is below 300nm. They are mainly used for accelerated durability testing of materials and qualitative comparison of more than two types of materials.

Condensation

By heating the water in the base sink, water vapor is emitted into the air. When encountering air with a lower temperature, the water vapor continuously condenses into tiny water droplets on the sample surface, simulating the phenomenon of condensation on the sample

Water spray

Nozzles continuously spray deionized water onto the front side of specimens in order to simulate rain. By exposing materials to drastic temperature changes and rainfall, they are tested for water resistance, thermal shock resistance and mechanical resistance.

* Light and water spray can operate at the same time.

Temperature and humidity control

With the air and humidity control system, testing panel surface is maintained at the set temperature and the humidity inside the test chamber is maintained at the set range. With the light/darkness, the chamber can simulate different conditions, such as high humidity in darkness, dryness at high temperatures, and dryness.

Features

• Fully automatic control of the test program
• HMI touch screen display
• Alarm protection function: door safety protection, low water level, over temperature, electric leakage, heating overload
• Automatic control of light amplitude illumination and blackboard temperature, and the amplitude illumination can be calibrated and traced.
• Direct display and automatic control of sample holder temperature (BST, BPT)
• Direct display and automatic control of illumination, condensation and spraying
• Direct display and automatic control of relative humidity

Technical Info

• Light source irradiance: UV-A (wavelength 340nm) or UV-B (wavelength 313nm); 40W × 8 pieces (normal service life 2000 hours)
• Adjustable range of irradiance: UVA340: 0.3 W/m2~1.1 W/m2 UVB313: 0.3 W/m2~1.3 W/m2
• Humidity: controllable range 10-95% RH fluctuation ± 3% (The minimum humidity can reach 10% RH when the temperature is 70 degrees Celsius, and the humidity range is 15% -95% RH when the temperature is below 50 degrees Celsius under lighting conditions)
• Temperature: controllable range: room temperature+5 ℃ -70 ℃ fluctuation ± 1 ℃ (under light) room temperature+5 ℃ -60 ℃ (under dark)
• Rated power of the entire machine: 2kw
• Inner/outer shell material: inner box stainless steel plate 304/outer box Q235
• Air and water heating method: nickel chromium alloy heating, contactless SSR (solid-state relay)
• Exposure area: 5175cm2/828cm2
• Standard templates: 24 standard template racks (can accommodate 48 pieces and 150 pieces at once) × 70mm template)
• External dimensions: 1400 × five hundred × 1375mm long × wide × High)
• Weight: 170Kg

   

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  BEVS 3380 Multifunction UV Weather Tester