CamSpec M550 SPF Spectrophotometer

CamSpec M550 Integrating Sphere

Measure the SPF of fabrics with this package designed specifically for the fabrics industry.

The system comprises of a CamSpec M550 double beam scanning spectrophotometer with an integrating sphere accessory installed, controlled via comprehensive PC software CamSpec SPF Windows™.

This instrument can be used as a conventional double beam scanning spectrometer by removing the sphere and reference attenuator.

Exceptional sensitivity, resolution, stray light, noise and drift specifications.

Calibrated in the UK by qualified engineers using international standards for wavelength, absorbance, resolution and stray light. 


  • Highly efficient, removable integrating sphere
  • Sample-effect compensation
  • Low noise, high accuracy
  • User friendly operation
  • Automatic calculations
  • Report generation
  • Validation



The CamSpec M550SPF package is intended for measurement and analysis of sun/UV penetration and protection. The package has been specifically designed for analysts working in the fabrics industry that need an accurate and reliable method of determining the sun blocking properties of fabrics for UV-A and UV-B wavelengths.


Integrating Sphere

The purpose designed integrating sphere, which meets the requirements of international standards, efficiently collects all the scattered radiation transmitted by the fabric.  The Opdima surface has a very high reflectivity throughout the UV-R region, diffusely reflecting the radiation on to a solid state detector mounted at the top of the sphere.


CamSpec M550 Operating Modes

  • Basic Mode (Abs, %T, Conc)
  • Quantitative (concentration calibration curves)
  • Wavelength Scanning
  • Kinetics (including timedrive)
  • DNA/Protein
  • Multi-Wavelength
  • Performance Validation



The system is for measuring the sun blocking properties of fabrics and fully conforms to the following test methods:

  • European Standard EN 13758-1
  • American (AATCC Test Method 183.1998)
  • British (BS 7914:1998)
  • Australian and New Zealand (AS/NZS

The appropriate method should be read in full by those intending to make formal measurements. Calibrated in the UK using wavelength, absorbance, resolution and stray light international standards by qualified engineers. References should be chosen whose calibrated values “bracket” the conditions to be used for analysis.

Technical Specifications

DisplayGraphic LCD (320×240 )dot
Light SourceTungsten-Halogen and Deuterium
MonochromatorDouble beam, grating 1200 lines/mm
DetectorsSilicon Photodiode
Wavelenth Range190-1100nm
Wavelength Accuracy±0.5nm
Wavelength Repeatability≤0.1nm
Wavelength Resolution±0.1nm
Sample CompartmentVarious Accessories Available
Standard Cell Holder1 Sample; 1 Reference for 10mm cells
SoftwareUV-Vis Analyst, optional
Zero Drift<0.001A per hour after warm up
Stray Light<0.1%@220nm&340nm
Photometric Accuracy±0.5%
Photometric Range0-200%T, -0.3-3.0A
Printer InterfaceParallel for A4 HP and Epson Printers
Computer InterfaceUSB for PC control and USB for data export
Power Requirements100V-240V AC, 50Hz/60Hz
Instrument Dimensions (lxwxh)405x625x280
Instrument Weight24.0kg
Shipping Dimensions (lxwxh)770x580x420mm
Shipping Weight26.7kg

Contact us

If you have any questions or require further information, please do not hesitate to email us at [email protected], call us on +44 (0)113 286 4536 or submit a contact form.