Box type UV aging test chamber

NegotiableUpdate on 07/29

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Nature of the Manufacturer: Producers

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Overview

Product Details

This UV accelerated aging test chamber is imported UVA-340 Fluorescent ultraviolet lamps serve as light sources and can simulate the hazards caused by sunlight, rain, and dew. UV The weather resistant box uses fluorescent ultraviolet lamps to simulate the effect of sunlight exposure, and uses condensed moisture to simulate dew. The tested material is placed in a cyclic program of alternating light and moisture at a certain temperature for testing, and an accelerated weather resistance test is conducted on the material to obtain the results of its weather resistance. UV It takes several days or weeks to reproduce the hazards that occur outdoors for months or years. The types of hazards include fading, discoloration, loss of gloss, powdering, cracking, turbidity, bubbles, brittleness, strength, deterioration, and oxidation. This machine is equipped with a sprinkler system.

1、 Product parameters
Studio size: W1140mm × H600 mm × D500 mm
External dimensions: W1300mm × d550 mm × H1760 mm
Center distance of the lamp: 70 mm
The distance from the nearest parallel plane of the test piece to the lamp surface is about 50 mm
Wavelength range: UV-A The wavelength range is 315~400 nm
Radiation intensity: 1.5 W／m2／340nm
Temperature resolution: 0.1 ℃
Light temperature range: 50 ℃~70 ℃/temperature tolerance is ± 3 ℃
Condensation temperature range: 40 ℃~60 ℃/temperature tolerance is ± 3 ℃
Blackboard thermometer measurement range: 30~80 ℃/tolerance of ± 1 ℃
Temperature control method: PID Self setting temperature control method
Humidity range: about 45%~70% R.H( Illuminated state)/98% or above (condensed state)
Sink requirement: Water depth not exceeding 25 mm， And there is an automatic water supply controller
Suggested instrument usage environment: 5-35 ℃, 40% -85% R·H、 Distance from wall 300 mm

2、 Main functions
This UV accelerated aging test chamber is imported UVA-340 Fluorescent ultraviolet lamps serve as light sources and can simulate the hazards caused by sunlight, rain, and dew. UV The weather resistant box uses fluorescent ultraviolet lamps to simulate the effect of sunlight exposure, and uses condensed moisture to simulate dew. The tested material is placed in a cyclic program of alternating light and moisture at a certain temperature for testing, and an accelerated weather resistance test is conducted on the material to obtain the results of its weather resistance. UV It takes several days or weeks to reproduce the hazards that occur outdoors for months or years. The types of hazards include fading, discoloration, loss of gloss, powdering, cracking, turbidity, bubbles, brittleness, strength, deterioration, and oxidation. This machine is equipped with a sprinkler system.
This UV accelerated aging test chamber can simulate environmental conditions such as UV, rain, high temperature, high humidity, condensation, and darkness in natural climate. By reproducing these conditions and merging them into a cycle, it can automatically complete the cycle number. This is the working principle of the UV aging test chamber. During this process, the device can automatically monitor the temperature of the blackboard and sink; By configuring the irradiance measurement and control device (optional), the irradiance can be measured and controlled to stabilize at 0.76 W/m2/340nm Or specify the set value and greatly extend the service life of the lamp.
Compliant with international testing standards:
ASTM G 153, ASTM G 154, ASTM D 4329, ASTM D 4799,ASTM D 4587, SAE
J2020, ISO 4892 All current UV aging test standards.
3、 Item Introduction
A． Light source:
The light source uses 8 units with a rated power of 40 W Imported ultraviolet fluorescent lamps are used as the light source. Ultraviolet fluorescent tubes, distributed in machines
On both sides, there are 4 branches on each side. have UVA-340 and UVB-313 The light source is available for users to choose and configure.
UVA-340 The luminous spectrum energy of the lamp tube is mainly concentrated at 340 nm At the wavelength,
UVB-313 The luminescence spectrum of the lamp tube is mainly concentrated at 313 nm Near the wavelength.
What we are using is UVA-340 fluorescent tube
Due to the gradual decay of fluorescent light energy output over time, in order to reduce the impact of light energy decay on the experiment,
So in this test box, every quarter of the lifespan of the fluorescent lamp in all eight tubes, a new tube is used to replace an old one
Lamp tube, in this way, the ultraviolet light source is always composed of new and old lamps, thus obtaining a constant output of light energy.
The effective service life of the lamp tube can be around 1600 hours.
B． Electrical control:
a. The blackboard temperature and condensation temperature are both controlled by a controller,
b. The rest mostly use imported electronic components.
Uniformity of irradiance: ≤ 4% (at the surface of the sample)
Blackboard temperature monitoring: using standard Pt-100 Blackboard temperature
Degree sensor,
Accurately control the surface temperature of the sample during the testing process.
Blackboard temperature setting range: BPT 40-75℃；
But the temperature protection device inside the machine
The actual maximum temperature limit is 93 ℃± 10%.
Blackboard temperature control accuracy: ± 0.5 ℃,
c、 Water tank temperature monitoring: During the cyclic testing process, there is a testing section that is the dark condensation process, which requires internal energy in the box
Generate saturated water vapor at higher temperatures, which condenses on the surface of the sample when it encounters a relatively cooler surface
Water.
The sink is located at the bottom of the box and is equipped with an electric heater.
Water tank temperature control range: 40~60 ℃
d、 The test chamber is equipped with a time controller with a range of 0~530 H， Power outage memory function.
e、 Safety protection device:
◆ Over temperature protection inside the box: When the temperature inside the box exceeds 93 ℃± 10%, the machine will automatically cut off the electricity to the lamp and heater
Supply the source and enter a state of equilibrium for cooling.
Low water level alarm in the sink to prevent the heater from burning out.
C． Standard sample holder:
The maximum thickness of the sample can reach 300 mm，
Non standard size users need to specify when placing an order.
When no sample holder or clamp is needed, it can be loaded directly.
Standard sample holder 14 rows/side, with a blackboard thermometer placed in one row on the back.
The machine is easy to open the door.
D． Material for box production:
The inner lining of the box is made of SUS304# Stainless steel plate
The shell adopts SUS304# Stainless steel plate
The sample rack is made of stainless steel and aluminum alloy mesh frame, which facilitates the storage and retrieval of samples
E． Overview of the whole machine:
◆ Size: Approximately H1770mm × W1350mm × D 530 mm
Weight: Approximately 150 kg
F． 3 Host requires working environment conditions:
Power requirement: 220 V ± 5%, single-phase three wire, 50 Hz，8A， Requirement 10 A Slow melting fuse.
Environment: 5-35 ℃, 0-80% RH， Good ventilation and clean indoor environment.
◆ Work area: approximately 234 × 353 cm
Drainage: There needs to be a drainage ditch on the floor near the host.
◆ For ease of movement, casters are installed at the bottom of the instrument and the position is fixed
Later use U Fix the position of the testing machine with a ring.

4、 Control instruments
Equipment selection: True color touch screen PID The temperature intelligent controller has high temperature control accuracy and good stability.
5、 Compliant with standards
GB／T14522-93 GB／T16422.3-1997 GB／T16585-96 Waiting for the current UV aging test standards