QUV / uvc test chamber

UVCs are widely used to sterilize (UVGI: UltraViolet Germicidal Irradiation) and destroy viruses and bacteria.

The use of UVC wavelengths is very effective but can also lead to degradation of disinfected surfaces.

Our QUV / uvc enclosure is equipped with UVC light sources centered at 254 nm to test the durability of materials that are exposed to UVC during decontamination phases.

We have taken special care in the safety of this equipment and our protection systems guarantee the absence of UVC outside the machine.

UVC lamps

Our UVC lamps are designed to deliver a high intensity spectrum narrowed to 254 nm.

UVCs are very energetic and are used to eradicate viruses and bacteria from surfaces.

At the same time, this very effective disinfection technique causes damage to the materials treated: textiles, paints, plastics, leathers.

We have developed these UVC lamps in order to be able to test the durability of products subjected to the UVC cleaning process.

SOLAR EYE® irradiance regulation

The variations in spectral intensity have an impact on the degradation kinetics of the material.

As for the changes in the shape of the spectrum, they will have an impact both on the kinetics and on the type of degradation.

This is why it is essential that a light aging chamber be very reproducible on these two parameters.

All QUV models (except the basic) are fitted with the SOLAR EYE ® irradiance regulation system.

This is a control loop which precisely measures and adjusts the spectral intensity delivered during the test, by modulating the electric power delivered to the lamps.

The irradiance sensors are calibrated and linked to international standards.

The SOLAR EYE ® system:

• Measures and regulates the programmed intensity
• Ensures long lamp life
• Amplifies kinetics at high irradiance
• Allows working at an irradiance greater than the natural maximum irradiance
• Offers metrological traceability

Maintenance and calibration

The controller of our QUV is equipped with a self-diagnostic function which continuously records all machine parameters.

The system displays status, error, or maintenance messages, depending on the data being analyzed.

Typical maintenance on a QUV enclosure consists of the periodic replacement of lamps and the calibration of the irradiance sensors.

The irradiance sensors of QUVs equipped with SOLAR EYE ® technology must be calibrated periodically in order to ensure repeatability and traceability of results.

This operation is quick and simple thanks to the universal calibrator system and AUTOCAL.

Within minutes, the chamber sensors are calibrated and connected to international standards via the ISO 17025 certified standard sensor (which must be replaced once a year).

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