ASTM D3794 Uv Lamp Climate test Chamber/UV Lamp Aging Weathering Test Machine/uv

Mterial of construction

Interior sizes  

1130×500×400mm (WHD)  

Exterior sizes

1300×500×1460mm (WHD)

Controller

LCD touch screen panel, programmable of temp., humid., UV(sun), spray(rain) and time

Machine compoments material

inner and outer 304# stainless steel

Sample holde

Aluminum alloy frame base

Irradiation lamp

8 pcs of UVA-340, For each 4pcs on each side

Number of specimens

48 pcs

Protection device

residual-current circuit breaker (RCCB) to control the warning for loop overload, thermal protection and water shortage protection.

Technical Parameters

Range of temp.

RT+10℃~70℃

Range of humidity

≥90%R.H

Temp. uniformity

±1℃

Temp. fluctuation

±0.5℃

Center distance between lamps

70mm

Center distance between samples and lamps

50±3mm

Adjustment

Test period for Temp., irradiation, condensation, spray can be adjustable

Lamp

UVA-340, L=1200/40W, 8pcs(average service life for 1600hrs)

Controller

Touch screen panel ,Youyi U740 Controller

Temp. control method

PID self-adjustable SSR control

Standard samples size

75×290mm( special parts optional)

Depth of water channel

25mm under auto-control

Available irradiation area

900×210mm

Wave length of UV

315-400nm

Test time

0~999H99min (adjustable)

Irradiation black panel temperature

50℃~70℃

Samples quanity can be placed on the holder

48pcs (for 52pcs also can be customized)

Auto-spray for the machine structure

Structure introduction

Machine material

304SUS for the whole machine

Single cycling system for air flue in the box, there’s one inlet axis weeding machine which improves the flow amount of air, the heating ability and the whole temperature uniformity in the test machine.

Water source and consumption:

Tap water or distilled water for 8liters per day.

Heating method is to heat liner water tank with fast heating speed and high temperature uniformity.

Automatic water-supplying from liner which prevent the heating tube from damage.

Sample holder material

SUS304 or aluminium alloy steel

High quality PU active wheel to fix the machine

U-shape drainage used to drain water

The surface of sample is parallel with the one of UV lamp

auto-sprayer in the spray system, water pressure can be adjustable.

Safety protection device

a) Ground protection

b) power source overload and short circuit breaker

c) control loop overload and short circuit fuse protector

d) water shortage protection

e) thermal protection

Temperature control

UV: the primary optics reaction won’t be sencetive to the changing temperature, while, the reaction speed under the second grade will acts closely to the changing temperature. Usually it will be faster as the heating-up, as a result, under the blazing sun of UV lighting, it’s very important to control the temperature. The most important what we do is to set the testing temperature for accelerate test should match the highest temperature during the practical application, the temperature of 50℃ to 70 ℃ depends on the lighting level and air temperature. Temperature adjustment of equipment is to control the air heating, water heating and other series action in the machine by the micro computer.

Humidity: collapsing force from humidity to material will increase according to the rising temperature. So the temperature control is the basic requirement. In other words, to generate high speed is to keep high temperature environment during the humidity process, so the temperature of condensation should be set in the range of 40℃ to 60 ℃.

Heating system

a)high speed heating tube of U-shape titanium alloy;

b)indepental temperature control system and lighting system;

c)temp. control and output power controlled by micro computer with high accuracy and high efficiency.

d)Thermal protection function of heating system.

l The black panel adopts the colorful touch screen controller or digital key pressing contorller to control the heating process. PID self-regulation, monitoring all adopt the standard PT100 temp. sensor of black panel.

l Temp. of water tank adopts the colorful touch screen touch screen program to control the heating, water tank locats at the bottom of tank, there is electronical heating device. During the test process, there’s test phase is dark condensation which need to generate saturated steam of high temperature, when steam meet the cool templet, it condenses into water on its surface.

Equipment required condition

Temp.

5℃~+32℃

Humidity

≤85%

Power supply

AC220(±10%)V/50HZ   

Power

3.8KW