As a key Tier-1 distributor of Q-Lab in China and Southeast Asia, RoacheLab has always been committed to providing customers worldwide with advanced and reliable weathering and lightfastness testing solutions.Building on the Q-SUN xenon arc test chamber “E” Series—which introduced dual touchscreen displays and an enhanced irradiance system—the all-new “X” model sets a new standard for environmental control in xenon arc test chambers.

What Makes the Q-SUN Xe-3 “X” Different?

➤ “X” Stands for Expanded Performance

While retaining the long lamp life, high irradiance capability, and ease of operation that customers expect from Q-SUN xenon arc test chambers, the new model features a completely redesigned specimen environment management system, including:

● Chamber Air Temperature (CAT) control

● Black Panel (BP/IBP) temperature control

● Relative Humidity (RH) control

Key Features of the Q-SUN Xe-3 “X”

● Dual Touchscreen Displays

Full-color interfaces supporting 17 languages.

● Superior Environmental Control

Provides highly uniform and consistent chamber airflow, even under less-than-ideal laboratory conditions, while expanding the achievable range of temperature and humidity combinations.

● Long-Life Xenon Lamps

Q-Lab xenon lamps are warranted for 3,000 hours at standard irradiance levels.

● 3D Specimen Capability

Offers versatile testing capabilities for non-flat parts and assembled components.

● Enhanced Engineering Design

Calibration, maintenance, and operation can all be performed from the front and sides of the unit, making the system exceptionally easy to use.

Two Major Improvements of the Q-SUN Xe-3 “X”

1. A Broader Range of Achievable Test Conditions

Common international weathering standards, such as ISO 4892-2, require a substantial temperature difference between the black panel temperature—63°C BP or 65°C IBP—and the chamber air temperature of 38°C.

The Q-SUN Xe-3 “X” uses an advanced air-atomizing nozzle humidification system to maintain these environmental conditions, as well as other low-temperature setpoints. Because the system introduces moisture into the chamber without adding heat, the Q-SUN Xe-3 can meet low-dew-point test requirements in most laboratories without the need for an external chiller.

2. Significantly Improved Temperature Uniformity

Variations in test conditions within the chamber can affect the consistency of results obtained from specimens placed in different positions.

Good laboratory practices—such as proper calibration and periodic specimen repositioning—can significantly improve test consistency. However, maintaining uniform conditions throughout the test chamber is equally important. Many modern testing laboratories are placing greater emphasis on verifying the spatial uniformity of the sunlight, heat, and moisture received by specimens.

To address this challenge, the all-new Q-SUN Xe-3 “X” incorporates a significantly improved airflow management and environmental control system.

What Is the Result?

The new X model delivers outstanding temperature and relative humidity uniformity, ensuring that specimens receive consistent and repeatable exposure across the entire flat specimen tray.

Seamless Integration and Easy Operation

Innovation should not require users to relearn how to run their test programs. The Q-SUN Xe-3 “X” retains the same operating, calibration, and maintenance procedures as previous Xe-3 models.

● Trusted Calibration

Continue using ISO/IEC 17025-accredited UC20 and UC202 smart sensors for fast and accurate irradiance and temperature calibration.

● Common Consumables

The new model is fully compatible with existing Xe-3 xenon lamps, optical filters, specimen holders, and water and air filters.

● Simple Operation and Maintenance

Q-Lab’s philosophy is to “Make Testing Simple,” and the Xe-3 is no exception. All operating, calibration, and maintenance tasks can be completed by the user within minutes, with few or no tools required.

● Consistent Facility Requirements

Standard electrical power and purified-water connections remain unchanged. In addition, the X model requires a standard compressed-air supply for operation.

Like all Q-SUN xenon arc test chambers, the new Xe-3 “X” accurately reproduces full-spectrum sunlight and is suitable for testing a wide range of materials, including plastics, coatings, textiles, and automotive components.

It also supports both 2D and 3D specimens, making it an ideal solution for research and development, product development, and quality-control laboratories.

Frequently Asked Questions

Q: What Is the Q-SUN Xe-3 “X” Model?

A: The “X” model is the direct upgrade to the previous Q-SUN Xe-3 “E” model.

It retains the advanced features introduced in 2020—including the fourth-generation main controller with dual touchscreen displays and the enhanced irradiance system—while delivering greater overall performance through the complete redesign of three key control systems:

● Chamber Air Temperature (CAT) control

● Black Panel (BP/IBP) temperature control

● Relative Humidity (RH) control

Q: What Are the Main Benefits of Upgrading to the X Model?

A: The new system architecture addresses two major challenges in accelerated weathering testing:

● A broader range of test conditions: The new system enables laboratories to easily meet test-cycle requirements involving a substantial difference between black panel temperature and chamber air temperature.

● Superior temperature uniformity: Compared with previous production models, the redesigned internal airflow system significantly improves temperature uniformity across the exposure tray, ensuring highly repeatable test data.

Q: How Does the X Model Achieve This Level of Temperature Control Without a Chiller?

A: The Q-SUN Xe-3 “X” uses a highly efficient air-atomizing nozzle humidification system.

Because this system introduces moisture without adding heat, the test chamber can reliably maintain low-temperature and low-humidity test conditions without requiring an external chiller.