Light Fastness Tester FAQ

How does a light fastness tester work?

Xenon lamp power supply:

The light fastness tester‘s power supply connects to the xenon lamp. The control system supplies the voltage and current to make the lamp work normally.

Bulb heating:

A specific heating device heats the xenon lamp. This simulates the high temperatures of real working conditions.

Bulb Ignition:

The light fastness tester’s ignition circuit ignites the xenon lamp. It then emits light.

Time control:

Set the aging test time. Use the time controller to control the xenon lamp’s working time to simulate actual use.

Monitoring and Recording:

During aging, use sensors to monitor the bulb’s voltage, current, and brightness. Also, check other parameters. Record them with a data logger.

Evaluation of results:

The aging test results evaluate the xenon lamp’s life and performance. This determines the qualification of the bulb.

What is the difference between light fastness tester and uv aging tester?

Light fastness tester and UV aging testers differ in their principles, methods, and uses. They also have different spectral ranges. The following is a detailed comparison between them:

Working principle and spectral range:

A light fastness tester can simulate sunlight. It includes UV, visible, and infrared light. It fully simulates the natural lighting environment. This light fastness tester simulates the full solar spectrum, including UV, visible, and infrared light. It uses a xenon arc lamp. Light fastness tester is widely used for ageing tests in real environments.

UV weathering chambers, on the other hand, simulate the damaging UV rays in sunlight. It has a more uniform spectrum but a much higher intensity of aging. This equipment simulates sunlight’s damaging effects on materials. It uses specific fluorescent UV lamps, which produce the most impactful UV light.

Test Method:

light fastness tester use xenon arc lamps. They simulate the full solar spectrum, including UV, visible, and infrared light. They are widely used for aging tests in real environments.

UV aging test chambers simulate sunlight’s damaging effects on materials. They use specific fluorescent UV lamps, which generate the most harmful UV light.

Practical application scenarios:

The light fastness tester simulates the full spectrum of sunlight. It is low-cost, so it is more widely used. Researchers use it to simulate the aging of materials under full sunlight.

The UV tester simulates material ageing under highly destructive UV light. It is more efficient and effective. This is useful in some cases. For example, it can highly simulate UV light’s destructive effects on materials.

Other features:

The light fastness tester simulates both light and outdoor aging. Light fastness tester does this by controlling the temperature and humidity inside the equipment.

The UV aging tester, on the other hand, simulates UV radiation’s effects on products. It controls the UV radiation inside the equipment.

In summary, choose between a light fastness tester or UV tester based on the application requirements. To simulate aging of materials under full-spectrum sunlight, use a xenon lamp. It’s an aging tester. It’s the better choice. Use a UV weathering tester. It will closely simulate UV light’s damaging effects. It’s more suitable. When choosing, consider the cost, brand, quality, and service.

What is the working principle of light fastness tester?

The light fastness tester works by using the light from a xenon lamp. Light fastness tester simulates natural sunlight to age-test samples. Xenon lamps are bright and stable. They emit UV, visible, and infrared light. A control system in the chamber simulates natural light. It adjusts the temperature and humidity for a more realistic effect. The test applies light from a xenon lamp to the sample. This triggers changes that simulate prolonged natural light exposure. Adjusting the light’s duration and intensity can fully test the samples. This will support product development and production.

The light fastness tester works mainly in these ways:

Lighting system:

The main part of simulating sunlight is the light. Its stability and uniformity are due to the power supply, stabiliser, and reflector. The xenon lamp will emit high-intensity light to simulate sunlight.

Control system:

An intelligent part that controls and monitors the test by means of a computer or touch screen. Users can set aging parameters as needed. These include light intensity, wavelength, and working time. The control system can accurately manage the lights. It can also monitor the temperature and humidity in real time. If there are abnormalities, the control system can alarm and stop the test. This ensures the safety and stability of the test.

Environmental regulation system: designed to maintain the stability of the test conditions. The light fastness tester’s interior must have a specific temperature, humidity, and airflow. This is to ensure the test results are accurate and reliable. The environmental adjustment system simulates nature by changing its temperature, humidity, and airflow. The light fastness tester makes the test process more realistic.

What is the operation procedure of light fastness tester?

The light fastness tester simulates light, temperature, and humidity. It tests various materials and products for aging, discoloration, and fading. The light fastness tester provides a reliable tool for quality control and product development.

First, the preparation stage

1. Check the light fastness tester:

First, check the light fastness tester. Check that you have intact parts and that the power cord is connected. Then, test the light fastness tester.

Check the xenon lamp. The test requires it to be undamaged and bright enough.

2. Sample preparation:

Cut or prepare the samples for testing as needed. Clean the sample surface and remove any pollutants.

For later use, number and label the samples for the test.

3. Environmental preparation:

Choose a clean, stable lab. It should be free of dust, vibration, and other factors that may affect the test results.

Make sure there is enough space around the tester for operation and maintenance.

Second, power on and setup

1. Start the power supply:

Turn on the main power switch of the tester, at this time the meter starts to display. Check if the instrument is functioning normally, and address any issues promptly.

2. Set the test conditions:

Set the light intensity, temperature, humidity, and test cycle. Do this per the test standards or sample characteristics. These conditions should closely match or simulate the sample’s.

Use the touch screen or control panel to input the parameters. Then, check for errors and save the settings.

Third, place the sample

1. Open the door of the test box:

After ensuring that the light fastness tester has worked stably, open the door of the light fastness tester.

2. Place the sample:

Place the prepared sample on the specimen rack inside the light fastness tester. If the tester uses the rotary bone type, clamp the sample in the rotary bone frame. If using the flat plate type, place the sample on the shelf. Then, adjust the sample frame’s height to keep a standard distance from the lamp.

Ensure the sample’s exposed surface faces the light source. The sample area must be within the effective range of the light.

3. Close the door:

After placing the sample, quickly close the light fastness tester’s door. This will avoid external light or air affecting the test.

Fourth, start the test

1. Start the test:

Press the ‘Start’ button on the control panel. The light fastness tester will then work according to the set conditions.

Observe and record the test process for temperature, light, and other parameters. They must meet the requirements.

2. Regular observation:

Regularly open the test chamber door during the test. Do this when necessary, such as to check or adjust the sample. However, openings should be short to avoid affecting the results.

Note any changes in color and surface morphology of the sample. Record the relevant data.

Fifth, end the test

1. Stop the test:

When the scheduled test cycle or the aging phenomenon of the sample, stop the test. Press the ‘stop’ button on the control panel.

2. Take out the sample:

Open the door of the light fastness tester and remove the test sample. Wear protective equipment. It avoids injury from high heat or bright light.

3. Turn off the equipment:

Turn off all switches and power supply of the light fastness tester to ensure that the light fastness tester is in a safe state.

Sixth, follow-up work

1. Cleaning and maintenance:

After the test, you should clean the light fastness tester and perform maintenance work. Use pure or deionised water to clean the light fastness tester, sample frame, and other parts. Check the components for damage or looseness. Replace or tighten them if needed.

2. Record and report:

Compile a test report. It must include: test conditions, sample info, test results, and conclusions. Use the test data and observations. The report should be objective, accurate and detailed.

3. Filing and preservation:

File and save the test report and related data for subsequent review and analysis. At the same time, the test sample should also be properly preserved or disposed of.

In summary, the light fastness tester has six steps. They are: prepare, boot and set up, place the sample, start the test, end the test, and do follow-up work. During the operation, one must strictly follow the procedures and safety rules. This ensures the test results are accurate and reliable.

How do I programme a light fastness tester?

Programming a light fastness tester involves key steps. They ensure the test’s accuracy and safety. Below are the detailed steps for setting the programme:

Preparation before start-up:

Make sure to install the equipment and put all safety measures in place.

Read the manual for the light fastness tester’s basic use and safety.

Fill up the water tank with pure water for humidification.

Close the drain valves in all parts of the light fastness tester. This will avoid interfering with the humidification section.

Secure the irradiator probe to the probe mounting bracket on the sample holder.

Make sure to close the light fastness tester door tightly.

Start the unit:

Switch on the power and close the circuit breaker at the rear of the unit.

Check the phase sequence indicator to ensure that the wiring is correct.

Press the power switch to start the unit. The lamp cooling fan should start now. The meter will show the power on screen when it’s on.

Set the programme:

Enter the setting interface by clicking ‘Catalogue’ on the meter screen.

Select ‘Fixed value setting’ to enter the setting of temperature, humidity, light and other parameters.

According to the test requirements, set the time, cycle times and other parameters.

Sample preparation:

Attach the material to be tested to the specimen holder, in its unloaded state. This will prevent external forces.

Make sure the light source hits the exposed side of the sample. The working area must be fully exposed to the effective light.

Start the test:

After starting the test, keep conditions constant until it finishes. It must finish within the scheduled cycle.

At the end of the test, open the light fastness tester remove the sample and close the door of the light fastness tester.

Finally, switch off the power. Then, organize the light fastness tester and clean the light fastness tester and outer case surfaces.

Please program the light fastness tester correctly. Follow these steps. This will give accurate test results.

How do I choose a light fastness tester?

Choosing the right light fastness tester requires considering many factors. These include experimental needs, technical specs, brand, cost, and user reviews. Here are some specific guidelines:

Define the experimental needs:

First, define the experiment’s specific needs. It includes the type and size of the test samples, the required light intensity, and the precision of temperature and humidity control. Also, include the test cycle and frequency, and so on. This information will help you choose the appropriate light fastness tester specifications and features.

Understand the technical indicators:

Check the key indicators of the light fastness tester. These are the light source’s power, stability, and intensity. Also, the temperature and humidity controls’ precision. Also, check the irradiance control and the studio size. These indicators directly affect the accuracy and reliability of the test results.

Choose a well-known brand:

A well-known brand usually means good quality. It also ensures great after-sales service and support. Well-known brands invest more in tech research and development. They can continually introduce new products to meet users’ changing needs.

Consideration of cost-effective:

In the purchase, consider the performance. Also, consider the price, after-sales service, and other factors. Select the most cost-effective products. Price is not the only criterion. High-performance, affordable products are also good.

Refer to user reviews and test reports of professional organisations:

Before buying, check some user reviews and expert test reports. They will show you the product’s real-world use and performance. This will help you make a better choice.

In short, pick a good light fastness tester. Consider several factors. Start with the experimental needs. Then, check the technical specs. Choose a well-known brand. Also, consider cost-effectiveness and user feedback. This will ensure the light fastness tester meets your testing needs.

To which areas can we apply the light fastness tester?

Automotive industry:

It is for testing automotive parts, body painting, and plastics in different climates. Can simulate high and low temperatures, sunlight, and humidity. It tests the car’s performance and stability in different climates.

Electrical and electronic industry:

Used to test the reliability of electronics, wires, and appliances in various climates. It can simulate high and low temperatures, humidity, and dryness. This tests the products’ durability, anti-corrosion, and electrical performance.

Aerospace industry:

It tested the reliability of aerospace light fastness tester in extreme climates. And it can simulate extreme environments, like: high altitude and low pressure, high heat and humidity, and low temperatures and humidity. It tests products’ ability to withstand harsh conditions.

Building materials industry:

It was used to test the durability and quality of materials, coatings, and glass in various climates. And it can simulate factors like sunlight, wind, and rain. It tests materials for aging and durability.

Cosmetics and food industry:

It tests the quality, stability, and safety of cosmetics and food packaging in various climates. And it can simulate sunlight, high heat, and humidity. It tests the products for color change, physical properties, and microbial contamination.

Light fastness tester how to carry out maintenance ?

At any time to keep the appearance of clean.

The light fastness tester part, please do not place items. It is to help the motor and control parts dissipate heat.

After long use of the light fastness tester, check for any odd noises in the motor, blower, and turntable. Clean and refuel them often.

For high temperature phenomena in electrical components, check the cause at once.

After using the light fastness tester, remember to keep it clean to prevent corrosion.

Clean the control cabinet once a month to prevent dust from affecting the light fastness tester.

After the test, turn off the power supply. Wipe the water from the chamber. Make the light fastness tester as dry as possible.

The control panel of the electrical components. If there are failures, replace them. Do not dismantle it. This is to ensure the light fastness tester’s life.

What do I need to pay attention to when operation light fastness tester?

You must select the correct test parameters. These are the ranges for temperature, humidity, and radiation. Also, the radiation spectral distribution and time.

Ensure the sample’s safety and stability. Promptly dispose of any wastewater, exhaust gas, or other waste from the test.

Follow the light fastness tester manual and safety procedures. They ensure the safe use of the light fastness tester and samples.

Regularly calibrate the light fastness tester’s temperature, humidity, and radiation. This ensures the test’s accuracy and reliability.

Use and maintain the light fastness tester to extend the equipment’s life and reliability.

The above are general precautions. Specific test methods may vary by experiment, product, and test standards. Please read the light fastness tester’s manual. Follow the relevant test standards before conducting any tests.

What are the benefits of a light fastness tester over other aging tests?

First, it can simulate a more realistic natural climate. This can better mimic the aging of materials in actual use.

Secondly, the light fastness tester is simple to operate. It has an automatic control system. You can easily adjust its parameters for different tests.

Also, the equipment is highly reliable. After many tests, it can ensure the accuracy of the test results.

In conclusion, the light fastness tester is key for weathering tests. It can accurately assess materials and products. And it is widely used in plastics, coatings, automotive and other industries. It simulates the real environment. It is easy to use and very reliable. You can use the light fastness tester for testing. It will provide reliable data for R&D and production in various industries. It will improve product quality and performance.

What are the advantages of light fastness testers?

Light fastness testers have many advantages. They are reliable, accelerate aging, and have fine control. They also have a wide range of applications.

High reliability:

Light fastness testers can accurately control exposure to substances. They simulate actual conditions, leading to more reliable data.

Accelerated results:

Light fastness testers can conduct material ageing tests much faster. This reduces costs and increases efficiency. The light fastness  test is much faster than the natural environment test. It can be several times, or even ten times, faster.

Fine control parameters:

Light fastness testers can simulate light of different wavelengths, intensities, and temperatures. They can control these factors finely. This makes aging test results more accurate and reliable.

Widely used:

light fastness testers are used in material science, chemistry, and the auto industry. For example, in the automotive industry, the light fastness tester can simulate bad weather, like sun, rain, and cold. It can then test the durability of the cars, parts, and components. Also, there are many uses in construction materials, plastics, and rubber.

The light fastness tester can simulate a near-natural climate. It does this by simulating the full sunlight spectrum. This test is for: selecting new materials, improving old ones, or checking durability after tests. It simulates the environment and tests products quickly. This is for research, development, and quality control. It also better simulates the changes from sunlight in different environments.

For more information on textile testing methods/standards
or textile testing machines, contact us:
What’s App: +86 180 2511 4082
Tel: +86 769 2329 4842
Fax: +86 769 2329 4860
Email: [email protected]