A More Realistic Xenon
The Q-SUN Xe-1 tester’s xenon arc lamps provide the best match to the full spectrum of sunlight.  Near-horizontal specimen mounting and optional water spray provide the most realistic moisture simulation available in a compact xenon arc tester.  An optional chiller is available for low temperature applications.
 
Easy To Use
The Q-SUN Xe-1 xenon test chamber is easy to install - you can exhaust the Xe-1 directly into the room.  It is easy to use and practically maintenance-free.  Specimen mounting and evaluation is fast and easy with the unique slide-out specimen tray.  The Xe-1 tester is completely automated and can operate continuously, 24 hours per day, 7 days per week.  Other features include:

• Remarkably simple user interface in eight user-selectable languages: English, French, Spanish, Italian or German
• Built-in Ethernet connection for data logging
• Comprehensive self-diagnostic warnings and service reminders
• Quick and easy calibration with patented AUTOCAL system

Fast Results
A product exposed outdoors to direct sunlight experiences maximum light intensity for only a few hours each day.  The Q-SUN Xe-1 tester can subject test specimens to the equivalent of noon summer sunlight for 24 hours a day, every day.  Consequently, specimen degradation can be highly accelerated.

• Q-SUN Xe-1-B: full spectrum sunlight
• Q-SUN Xe-1-SE: full spectrum sunlight, water spray, dual touchscreen display
• Q-SUN Xe-1-BCE: full spectrum sunlight, chiller, and dual touchscreen display
• Q-SUN Xe-1-SCE: full spectrum sunlight, water spray, chiller, and dual touchscreen display
• Q-SUN Xe-1-WE: full spectrum sunlight, temperature-controlled water immersion, and dual touchscreen display.

Full Spectrum Xenon Lamps
Xenon arc lamps give the best reproduction of full spectrum natural sunlight.  Q-Lab's lamps are air-cooled (not water-cooled), which makes them more economical, highly efficient and very low maintenance.  Standard lamps last for 1500 hours and the Xe-1 uses one lamp per machine. Enhanced lamps last for 3000 hours at normal irradiance and 1000 hours at high irradiance.

Optical Filters
A choice of optical filters is available to simulate a variety of service environments including direct sunlight and sunlight through window glass.  The performance of Q-Lab's filters does not decline with age; therefore, filters do not need to be replaced under normal operation.  The only exception to this is the Window-IR filter, which requires regular replacement.  All Q-SUN Xe-1 models use one optical filter per machine.  See LX-5060 - A Choice of Filters for Q-SUN.

Temperature Monitoring & Control
Control of temperature is important because it influences the rate of degradation.  Specimen exposure temperature is precisely controlled in the Q-SUN Xe-1 tester using a black panel temperature sensor.  The temperature can be set at any point between 35ºC and 103ºC, depending upon whether the sensor is insulated or uninsulated, irradiance level, filter type, lamp age and ambient room temperature.  Black panel temperature control is standard on the Xe-1 tester, or you can substitute chamber air temperature control as an option.  See LX-5000 - Q-SUN Xe-1, Xe-2 & Xe-3 Brochure.

Versatile Specimen Mounting
The flat specimen mounting tray in the Xe-1 tester accommodates different shapes and sizes of specimens, including three-dimensional parts.  A variety of specimen holders are available.  The Xe-1 mounting tray is 251mm x 457mm and holds up to 17 specimens @ 51mm x 102mm each.  See our specimen mounting page, LX-5080-SM - Q-SUN Xe-1 & Xe-3 Specimen Mounting or Accessories Tab for more information.

SOLAR EYE Irradiance Control
The SOLAR EYE irradiance control system constantly monitors and controls lamp output.  This assures precise light exposure and maximizes reproducibility of test results.  Irradiance control is available at 340nm, 420nm or TUV (Total UV).  See LX-5000 - Q-SUN Xe-1, Xe-2 & Xe-3 Brochure.

Optional Water Spray (Models Xe-1-S and Xe-1-SC)
Outdoor moisture attack is simulated via an optional pure water spray in the Xe-1 tester.  Two spray nozzles are located in the top of the chamber.  Spray can be programmed to operate during either the dark or light cycle.  Note that purified water is required for proper operation of the Xe-1 with water spray.  See LX-5000 - Q-SUN Xe-1, Xe-2 & Xe-3 Brochure.

Optional Heated Water Immersion (Model Xe-1-W)
The ponding tray in the Q-SUN Xe-1-W submerges test samples in a temperature-controlled water bath during light or dark cycles. Immersion, draining, and temperature control are performed automatically with an integral water repurification and recirculation system. Immersion weathering testing simulates environments experienced by materials frequently exposed to standing water, like roofing materials and photovoltaic panels. See LX-5019, Xe-1-W Product Summary.

Optional Chiller for Low Temperature Applications (Models Xe-1-BC and Xe-1-SC)
For some interior products such as pharmaceuticals and cosmetics, exposure at room temperature is necessary to prevent unnatural degradation.  An optional chiller is available for the Xe-1 tester to lower temperatures when testing such heat sensitive materials.  See LX-5000 - Q-SUN Xe-1, Xe-2 & Xe-3 Brochure.  With a chiller, a Q-SUN Xe-1 tester can operate at 19-103ºC, depending upon sensor type, irradiance level, filter type, lamp age, and ambient room temperature.  The Xe-1 with chiller is configured so that the chiller acts as a permanent stand for the compact tester.

Controls & Optional Software
The Dual Touchscreen Display (Xe-1-CE, Xe-1-SE, Xe-1-SCE, Xe-1-WE) is designed to be both functional and easy-to-use, the Q-SUN main controller features dual, full-color touchscreen displays and can be programmed in eight user-selectable languages (English, French, Spanish, Italian, German, Chinese, Korean, and Japanese). This system includes complete self-diagnostic error checking, constantly monitoring the status and performance of all systems. It also displays tester error messages and routine service reminders as needed. The multicolor LED status indicator light updates users on the tester’s operational state at a glance.

An external USB port on every Q-SUN Xe-1 tester allows users to perform software upgrades quickly to address key performance issues. For quality systems that require documented proof of test conditions, this USB port can also be used to download tester performance history. Data from the USB export can be emailed directly to Q-Lab's technical support desk for expert troubleshooting and diagnostics.

Sunlight Simulation
The Q-SUN Xe-1 tester’s xenon arc lamps produce the most realistic reproduction of full spectrum sunlight including ultraviolet, visible light and infrared radiation. For many materials, exposure to the full spectrum is necessary to provide an accurate simulation, especially when testing for color change and lightfastness.  See LX-5000 - Q-SUN Xe-1, Xe-2 & Xe-3 Brochure.

Standard and "Plus" Lamps
The Q-SUN Xe-1 tester uses a single, air-cooled xenon arc lamp. It significantly reduces operating and maintenance expenses compared to water-cooled lamps. Typical lamp life for a standard lamp is 1500 hours at normal irradiance.

Plus lamps are available that allow for improved lamp life, as well as the ability to test at high irradiance. These lamps typically last for 3000 hours at normal irradiance, and 1000 hours at high irradiance when used in any “E” configuration.

Changing the Xe-1 lamp is quick and easy – it is easily accessible from the front of the tester.  Replacement only requires the user to disconnect a simple plug connection, release two set screws, and remove the lamp housing.  See LX-5000 - Q-SUN Xe-1, Xe-2 & Xe-3 Brochure.  See LX-5000 - Q-SUN Xe-1, Xe-2 & Xe-3 Brochure.

A Choice of Optical Filters to Simulate a Variety of Environments
Xenon light must be properly filtered to achieve the appropriate spectrum for each particular application.  Differences in spectra may affect both the speed and the type of degradation.  Three categories of filters are available to simulate a variety of service environments, which are shown below.  The application or test method dictates which filters should be used.  See LU-8054a - SPD for QUV, Q-SUN, and Noon Summer Sunlight.

Daylight Filters
Daylight filters are used to simulate direct, noon summer sunlight.  They provide the best correlation to natural exposures for most applications.  Materials that are typically used outdoors (e.g. roofing and exterior coatings) should be tested using daylight filters.  Three different types of daylight filters are available for the Q-SUN Xe-1 tester:  Daylight - F, Daylight - Q and Daylight - B/B.

Window Glass Filters
Window glass filters produce spectra equivalent to sunlight coming through window glass.  This spectrum can also simulate other indoor lighting such as the harsh lighting found in a typical commercial or office environment.  Window glass filters are used for indoor materials such as printing materials and textiles.  Four different window glass filters are available for the Q-SUN Xe-1 tester:  Window - Q, Window - B/SL, Window - SF-5 and Window - IR.

Extended UV Filters
Extended UV Filters allow excess UV, below the normal cut-on of natural sunlight.  They are used to produce faster or more severe test results.  Extended UV Filters are specified in some automotive test methods and are sometimes used for aerospace applications. The most common Q-SUN filter of this type is the Extended UV - Q/B.

The Q-SUN Xe-1 tester’s long-life filters are exceptionally durable and maintain the required spectrum indefinitely.  After many years of use, Q-SUN filters have yet to show any signs of aging.  See LX-5060 - A Choice of Filters for Q-SUN for a more detailed discussion of optical filters, but the information above can be a useful guide.

Easy Calibration Assures Accuracy
The Q-SUN Xe-1 black panel temperature sensor and optional chamber air temperature sensor need to be calibrated periodically by the user.  This assures accurate and consistent results.

Calibrating the Xe-1 black panel temperature sensor is simple using the Universal Calibrator system’s UC202 calibrated temperature sensor and UC1 handheld display, or the historical CT202 calibrated thermometer, and takes only a few minutes.  Note that the CT202 and UC202 thermometers come with either an uninsulated black panel (UC202/BP, CT202/BP) or insulated black panel (UC202/IBP, CT202/IBP) sensor.  This sensor must match the type of sensor actually used in the Xe-1 tester.  Calibrating the optional chamber air temperature sensor is simply performed with any standard reference thermometer.

Calibration of the UC202 and CT202 thermometers needs to be performed annually. The UC202 thermometers were designed to be disposable and cost-efficient, and should be replaced annually with a  freshly-calibrated UC202. The CT202 thermometer needs to be returned to Q-Lab once per year for an inexpensive recalibration. UC202 units may also be returned for calibration for users who prefer recalibration to replacement. See our Recalibration Return Procedure.  Our calibration labs are ISO 17025 accredited by the American Association of Laboratory Accreditation (A2LA - Ohio Certificate Number 2382-01, China Certificate Number 2383-02, and England Certificate Number 2383-03).  Calibrations are traceable to the U.S. National Institute of Standards and Technology (NIST).

Easy Calibration Assures Accuracy
The Q-SUN Xe-1 SOLAR EYE irradiance sensor needs to be calibrated periodically by the user to assure accurate and consistent results.

Calibrating the Xe-1 tester is simple using the Universal Calibrator system’s UC20 calibration radiometer or the legacy CR20 calibration radiometer, and takes only a few minutes.  Both UC20 and CR20 devices come with a 340nm, 420nm, or 300-400nm TUV (Total UV) sensor and must match the type of sensor actually used in the Q-SUN tester. CR20 calibration radiometers must also match the optical filter in use in the Q-SUN.

Calibration of the UC20 and CR20 radiometers needs to be performed annually. The UC20 sensors were designed to be disposable and cost-efficient, and should be replaced annually with a  freshly-calibrated UC20. The CR20 radiometer needs to be returned to Q-Lab once per year for an inexpensive recalibration. UC20 units may also be returned for calibration for users who prefer recalibration to replacement.  See our Recalibration Return Procedure.  Our calibration labs are ISO 17025 accredited by the American Association of Laboratory Accreditation (A2LA - Ohio Certificate Number 2382-01, China Certificate Number 2383-02, and England Certificate Number 2383-03).  Calibrations are traceable to the U.S. National Institute of Standards and Technology (NIST).

Versatile Specimen Mounting
The Q-SUN Xe-1 tester’s flat specimen mounting tray offers the flexibility to test many sizes and shapes of specimens.  Specimen holders are available in a number of sizes to accommodate traditional flat specimens, like panels and plaques.  Three-dimensional parts such as bottles, test tubes, cosmetics, golf balls, etc. can be placed directly onto the specimen tray or in special holders.

The near-horizontal specimen tray ensures that water doesn't quickly run off the specimens, for best reproduction of outdoor results.  It is also useful for testing materials that flow at elevated temperatures.

Visit our specimen mounting page for more information and to see examples, or inquire about the following part numbers:

• X-10115-X  Q-SUN Flat Specimen Holder, holds 2 specimens on a single holder
• X-10113-K  Q-SUN Xe-1 Specimen Holder Kit, set of 8
• X-10183      Q-SUN Narrow Bottle Holder, 17 x 203mm slot on a 51 x 229mm single holder
• X-10184      Q-SUN Wide Bottle Holder, 19 x 203mm slot on a 51 x 229mm single holder
• X-10255-X  Q-SUN Textile Holder, holds 2 specimens 51 x 102mm on a single holder
• X-10264-K  Q-SUN Textile Masks, paper masks for 51 x 102mm holders, set of 100

Drain Pump
Drain pumps are available for Q-SUN Xe-1 models.  A drain pump is required if the drain tube must rise more than 100mm above the floor before reaching the drain.  Inquire about the following part numbers:

• X-6955-K    Q-SUN Drain Pump, 120V
• X-6956-K    Q-SUN Drain Pump, 230V

Adapter Wedge
Q-lab also offers a 0º adapter wedge to tilt the Q-SUN Xe-1 backward, so that the sample tray is in a horizontal or 0º position.  This is desirable to have water remain on the specimens instead of running off.  It also keeps soft, viscous specimens from running down a sloped sample tray and keeps liquid specimens level.

Water Repurification System
To significantly reduce the cost of running the Q-SUN Xe-1 tester’s optional water spray system, Q-Lab offers a water repurification system that reuses the water that normally would go down the drain.