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UV ultraviolet weather testing machine


type ratio of UV segment spectroscopy in the sun, and combined with temperature control, water supply, or wet, etc., to cause discoloration, brightness, intensity, crack, peeling, powder, oxidation, etc. Sunshine (UV section) high temperature, high humidity, condensation, dark rain cycle and other factors, simultaneous synergies between ultraviolet light and moisture make the material single light resistance or single moisturizing capacity or fail, thereby widespread The evaluation of weather resistance of material, the equipment is provided with the sunshine UV simulation, the use and maintenance cost is low, easy to use, the equipment is automatically operating, the test cycle is high, the lighting is very good, the test results are high.


Three. EV UV weathering test machine structure:

1, Inner box size: W1170 Times; H500 Times; D450 ( Custom-made non-standard size)

2, Shape size: W1480 Times; H1300 Times; D550 (available non-standard size)

3, machine material: SUS304 # stainless steel plate. ]

4, Sample Rack: Aluminum Alloy Frame Based Video

5, Controller: Color Touch Screen Program Controller

6, irradiation lamp: UVA-340 or UVB-313 8 (optional) 4 more than 4 faces

7, irradiation: UVA / UVB UV irradiation gauge (optional)

8, can be bidically online (RS232 communication interface, optional)

9, power supply leakage circuit alarm control loop overload short circuit alarm, over temperature alarm, water shortage protection


Four. Technology Parameters:

1, temperature range: RT normal temperature ~ 70 ° C

2, humidity range: large

in or equal to 90% RH

3, temperature uniformity : Plusmn; 1 ° C

4, temperature fluctuation: plusmn; 0.5 ° C

5, the center distance of the lamp tube: 70mm

6, the test article and the lamp tube Center distance: 50mm plusmn; 3mm

7, irradiation: 1.5W / m2 can be adjusted

8, light, condensation, spray test cycle adjustable

9 Tube: L 1200 / 40W, 8 (UVA / UVB service life 1600h or more)

10, controller: Color touch screen Canada (RUERSI3861P) Intelligent controller.

11, temperature control mode: PID self-tense SSRControl

12, standard test piece size: 75x290mm (special specification required)

13, sink water depth: 25mm automatic control

14, effective irradiation area: 900x210mm [

15, UV wavelength: UVA range is 315 ~ 400 nm; UVB range is 280 ~ 315 nm

16, test time: 0 ~ 999h (adjustable)

17, radiopes Blackboard temperature: + 40 ° C ~ + 70 ° C

18, standard sample rack: 24 group middot;

19, unit has automatic spray function

; ]

V. Structural Description:


3, the inner airway uses a single cycle system, with an imported axial flow fan, improved the fluging of air, heated

;; ability, greatly improved test chamber Temperature uniformity

4, tube: UV lamp, two rows of 8, 40W / branch

5, lamp life: 1600h or more

6 , Water source and consumption: about 8 liters of tap water or distillation water

7, 8 UVA or UVB ultraviolet lamp

8, heating mode is a inner water tank on both sides of the studio. Heating, fast temperature rise, uniform temperature distribution

9, the lid is a two-way flip type, close, easy to completely

10, the inner water level automatic hydrating, preventing the heating tube air damage

11. The sample rack is made of stainless steel or aluminum alloy

12. The bottom of the unit is fixed by high quality PU activity

13, the drainage system uses U-shaped sinking device drainage [

14. The surface of the test sample is parallel to the ultraviolet lamp plane

15. An automatic nozzle is mounted inside the spray system, the water pressure is adjustable


] Sixth, safety protection device:

1, ground protection

2, power supply overload short circuit breaker

3, control circuit overload, short-circuit fuse

] 4, water shortage protection

5, over temperature protection


Seven, temperature control UV:

level of optical reaction to temperature changes It is not sensitive, however, the speed of the secondary reaction is closely related to the temperature change. Generally, withThe temperature increases, the reaction speed will speed, and the temperature control is very important during the UV expiration test, and more importantly, it is necessary to increase the test temperature adopted by the acceleration test and the ZUI high temperature encountered in practical applications. match. The temperature of the UV process in the device is set to any point in 50 ° C to 70 ° C, depending on the level of light and the indoor environmental temperature. The temperature adjustment of the device is to direct a series of systems such as air heaters and water heaters in the equipment with a controller with microcomputer calculation.


With the improvement of temperature, the destructive power of moisture on the material will increase sharply. Therefore, in a humid transmissive, temperature control is the basic requirements of ZUI. Furthermore, it is necessary to produce a * fruit that requires maintaining a high temperature environment during moisture. Therefore, the temperature of the condensation process is set to any point in 40 ° C to 60 ° C.

8, heating system:

1, U-type titanium alloy high-speed heating electric heating tube

2, temperature control and light complete independent system

3, temperature control output power is calculated by microcomputer, with electricity efficiency of high precision and high efficiency

4, heating system has anti-supernal temperature function:

5, blackboard temperature adopts color The touch screen controller or digit button thermostat control heating is controlled by microcomputer calculation, PID self-tuning, and monitoring the standard PT100 blackboard temperature sensor.

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