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Technical Information

Labsphere’s UV-1000F Ultraviolet Transmittance Analyzer is specifically designed to meet the rigorous quality assurance needs of the textile industry. This rugged, convenient bench top instrument quickly and accurately measures the spectral transmittance of a fabric sample, then automatically converts data to a Ultraviolet Protective Factor (UPF) for determining the fabric’s protective ability.
Instantaneous Spectral Acquisition
The UV-1000F operates by measuring the diffuse transmittance of fabrics in the ultraviolet region (250 -450 nm). A dual diode array spectrometer with a xenon flashlamp, optimized for UV emission, and an integrating sphere provides instantaneous spectral acquisition. The diffuse illumination geometry of the sphere measures the transmittance from all angles and pathlengths through the sample, and utilizes the total energy from the xenon flashlamp for optimal signal-to-noise performance. This design delivers exceptional wavelength stability and flash-to-flash repeatability. The optical design meets the requirements of the Australian/New Zealand Standard AS/NZS 4399:1996 "Sun Protective Clothing—Evaluation and Classification," British Standard BS 7914:1998 "Method of Test for Penetration of Erythemally Weighted Solar Ultraviolet Radiation Through Clothing Fabrics," and US Standard AATCC 183-1998 "Transmittance or Blocking of Erythemally Weighted Ultraviolet Radiation Through Fabrics."
Fast, Accurate Determination of UPF
The efficiency of the dual diode array spectrometer, coupled with the xenon flashlamp gives reliable and repeatable measurement results in seconds. Instrument software automatically calculates the average value of the UVB (280 - 315 nm) and UVA (315 - 400 nm) spectral regions and instantly converts the data to give you an accurate UPF rating fabrics ultraviolet blocking ability.
Windows™ compatible application software provides an easy-to-use environment with pull-down menus, dialog boxes and built-in report generation functions. The application software guides the operator through analysis without complicated routines. This means minimal amount of operator training. One-touch sample analysis gives results in less than 5 seconds and information is quickly converted to a printed report or exported to other spreadsheet or data processing programs for statistical analysis.
Instant Report Generation
A built-in report function generates essential information at the click of a button. Reports include necessary GLP/GMP information such as date, time, operator name, sample identification and test parameters. Reports are viewed on your PC, printed, or exported as text to data processing software for further review.
Powerful Application Software

Application software includes preprogrammed solar spectral irradiance and CIE erythemal action spectra to precisely calculate the UPF value of the sample. Spectral irradiance data and test method parameters are easily set to your specific needs. Multiple scans are averaged and viewed simultaneously in easy-to-read formats.

click to enlarge


Wavelength Range:

250 - 450 nm*

Wavelength Accuracy:

± 2 nm

Transmittance Accuracy:
(nominal +/- uncertainty (%T))

2% ± 0.5%
10% ± 1%
20% ± 1.5%

Data Interval:

1 nm

Effective Slitwidth:

5 nm

Optical Geometry:

hemispherical illumination/0° viewing (d/0)

Sample Beam Diameter:

10 nm

Measurement Range:

0 - 100%
0 - 2.5A


1 - 50

Scan Time:

less than 5 seconds

* Application software allows for user definable limits within the instrument's wavelength region.

Physical and Environmental Specifications

Computer Interface:

RS-232C Serial Port

Data Transfer:

9600 Baud

Min. Computer Requirements:

486/33 processor, Windows™ 3.1 or higher
Color VGA 640 x 480 Resolution
8 MB RAM, 2 MB disk space

Power Requirements:

110/220 VAC, 60/50 Hz

Operating Environments:

0° - 500° C, 0% - 70% RH


17H x 18D x 7W inches


26 lb.

Automated Instrument Performance Validation

For validation of the UV-1000F Ultraviolet Transmittance Analyzer’s performance, application software includes an integrated Performance Validation Routine. This allows for on-site validation and revalidation and ensures optimum instrument performance. A set of our four calibrated standards is included with each analyzer to validate the accuracy of both wavelength and photometric scales. The set includes three photometric standards and a wavelength calibration standard. The standards are mounted in specially designed holders that automatically orient and position the standard to ensure precise placement each time the validation routine is performed. The instrument Performance Validation Routine assures quality measurement results as well as satisfying the requirements of regulatory agencies.


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