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radiometer and thermometer calibration
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Radiometers & Thermometers

All QUV and Q-SUN testers come with a black panel temperature sensor to monitor and accurately maintain temperature within the tester. For some Q-SUN models, a chamber air temperature sensor can be substituted or used simultaneously.

The black panel temperature sensor in the tester needs to be calibrated periodically. For the QUV tester, this is accomplished simply by using any reference thermometer. In the case of the Q-SUN testers, a special reference black panel thermometer must be used. The reference thermometer itself needs to be calibrated once per year. All QUV and Q-SUN testers are equipped with the SOLAR EYE irradiance control system (except for the QUV/basic tester). The SOLAR EYE system monitors and accurately maintains irradiance levels within the tester.

The sensor within the SOLAR EYE system must be calibrated by the user periodically. This is accomplished with a special calibration radiometer. This radiometer itself needs to be calibrated once per year.



QUV Thermometer Calibration
The QUV black panel temperature sensor needs to be calibrated periodically by the user to assure accurate and consistent results.  Calibrating the QUV black panel temperature sensor is simply performed with any standard reference thermometer.

Temperature sensors do not require normal replacement.  In the event of an unlikely failure, a replacement can be ordered under the following part number:
  • V-2156-X              QUV Black Panel Temperature Sensor (replace as necessary)

Q-SUN Thermometer Calibration
All Q-SUN black panel temperature sensors need to be calibrated periodically by the user to assure accurate and consistent results.  Calibrating the black panel temperature sensor is simple using a CT202 thermometer, and takes only a few minutes.  Note that the CT202 thermometer comes with either an uninsulated black panel or insulated black panel sensor, and must match the type of sensor actually used in the Q-SUN tester.

The CT202 thermometer needs to be returned to Q-Lab once per year for an inexpensive recalibration.  Our calibration labs are ISO 17025 accredited by the American Association of Laboratory Accreditation (A2LA).  Calibrations are traceable to the U.S. National Institute of Standards and Technology (NIST). See LW-6008 - Recalibration Return Procedure.

In the Q-SUN Xe-1, the tester can have an optional chamber air temperature sensor (included for a model Xe-1 with chiller).  Calibrating the Xe-1 chamber air temperature sensor is simply performed with any standard reference thermometer.

In both the Q-SUN Xe-2 and Xe-3 models, the low-cost, combination relative humidity/chamber air temperature sensor was thoughtfully designed to be disposable.  It should be replaced once a year and cannot be recalibrated.

Common Q-SUN thermometer part numbers are shown below:
  • X-10235-X             Q-SUN Xe-1/Xe-3 Black Panel Temperature Sensor (replace as necessary)
  • X-7778-X               Q-SUN Xe-1/Xe-3 Insulated Black Panel Temperature Sensor (replace as necessary)
  • XR-11463-X          Q-SUN Xe-2 Black Panel Temperature Sensor (replace as necessary)
  • XR-11464-X          Q-SUN Xe-2 Insulated Black Panel Temperature Sensor (replace as necessary)
  • X-10415-K            Q-SUN Relative Humidity/Chamber Air Sensor (replace annually)
  • CT202/BP            Q-SUN Black Panel Calibration Thermometer with Case
  • CT202/IBP           Q-SUN Insulated Black Panel Calibration Thermometer with Case
  • CT202/RECAL     Recalibration of CT202 Thermometer (recommended annually)

QUV Radiometer Calibration
For all models except QUV/basic, the QUV SOLAR EYE irradiance sensor needs to be calibrated periodically by the user.  This will assure accurate and consistent results.  Calibrating the QUV tester is simple using the AUTOCAL system and a CR10 calibration radiometer, and takes only a few minutes.  The CR10 calibration radiometer is equipped to calibrate a QUV tester with either UV-A or UV-B lamps.  For the QUV/cw (cool white), a CR10/cw calibration radiometer must be used.

The CR10 calibration radiometer needs to be returned to Q-Lab once per year for an inexpensive recalibration. See LW-6008 - Recalibration Return Procedure. Our calibration labs are ISO 17025 accredited by the American Association of Laboratory Accreditation (A2LA).  Calibrations are traceable to the U.S. National Institute of Standards and Technology (NIST).

Common QUV radiometer part numbers are shown below:
  • CR10                 QUV Calibration Radiometer with Case (UVA & UVB lamps)
  • CR10/cw           QUV Calibration Radiometer with Case (cool white lamps)
  • CR10/RECAL   Recalibration of CR10 (recommended annually)

Q-SUN Radiometer Calibration
All Q-SUN SOLAR-EYE irradiance sensors need to be calibrated periodically by the user to assure accurate and consistent results.  Calibrating the Q-SUN tester is simple using the provided CR20 calibration radiometer, and takes only a few minutes.  Note that the CR20 comes with a 340nm, 420nm, or 300-400nm TUV (Total UV) sensor and must match the type of sensor and filter type actually used in the Q-SUN tester.

The CR10, CR10/cw, and CR20 radiometers need to be returned to Q-Lab once per year for an inexpensive recalibration.  See LW-6008 - Recalibration Return Procedure.  Our calibration labs are ISO 17025 accredited by the American Association of Laboratory Accreditation (A2LA).  Calibrations are traceable to the U.S. National Institute of Standards and Technology (NIST).

Common Q-SUN radiometer part numbers are shown below:
  • CR20                 Q-SUN Narrow Band Calibration Radiometer with Case (specify control point & optical filter)
  • CR20/TUV         Q-SUN TUV (Total UV) Calibration Radiometer with Case
  • CR20/LUX         Q-SUN Xe-1 & Xe-3 LUX Calibration Radiometer with Case
  • CR20/RECAL    Recalibration of CR20 (recommended annually)

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