Industrial/Online Colour Measurement

Advantages

• Reduces waste, saves time and costs
• Very high repeatability thanks to high resolution spectral measurement
• Long-lasting and balanced high-power LED light source
• Different probe heads for various applications – reflection and transmission
• Easy communication to your process control system – ProfiNet, ProfiBus, Ethernet

 

Description

Colour is an important quality attribute of almost all products in production. The ColorLite sph9i is complemented by various probe heads variants and a wide range of accessories. Therefore the ColorLite sph9i system ensures colour measurement in different areas such as plastics, paper, textile and food industries. Permanent quality control minimizes waste in the production plant, effect increasing productivity by reducing time and costs.

 

Applications

• Reflection light colour measurement of granules, recycled pellets, regrind, extrudates and injection molding components
• Reflection and transmitted light measurement of films, PET packaging, textile fabrics and paper webs
• Measurement of liquids e.g. with a dipstick probe
• Other applications on request – we are happy to support you!

 

Measurement principle

Spectral colour measurement is the most accurate measurement method to achieve consistent and best-reproducible measurement results. The samples are illuminated with homogeneous, white light of high power LEDs. The surface of the product is scanned spectrally in 3.5 nm steps. The wavelength coordinates of 400 to 700 nm are shown in the desired colour scale. The ColorLite sph9i takes into account the appropriate type of light and the observer angle of the selected probe head variant.

 

Measurement Geometry	45°/0°; d/8°; 20°/0°; d/0° - Measurement area of 2 mm to 80 mm
Illuminants	D65, D55, A, C, F11
Standard Observer	2° and 10°
Colour Scales	XYZ, Yxy, ΔE CIE L*a*b*, L*u*v*
Quality Control Tolerance Limits and Colour Differences	ΔE CIELab; ΔL, Δa, Δb; ΔL, Δu, Δv; ΔL, ΔC, Δh, ΔECMC (1:1 und 1:2), CIE ΔE94, ΔE2000
Spectral Range/ Wavelength	400 nm to 700 nm
Spectral Resolution	Holografic grating-Spectrometer FWHM @500 nm < 10 nm Scanning in 3,5 nm intervals Resolution: 115 x 16-Bit per scan
Memory	FRAM, Memory of 1000 standard colours und 200 standards
Repeatability	< 0,05 ΔE CIELab (measurement on a white surface)
Light Source	White and blue LED´s Life span > 20 years
Power Supply	24 VDC
Ambient temperature	15 °C to 55 °C
Relative humidity	max. 85% not-condensing
PC-Interfaces	Serially USB, RS232 (isolated) Optional: CAN, Ethernet, PROFIBUS, PROFINET (all isolated)
Digital input-/ and output	4/4-Kanal digital I/O for status of process control system 4 isolated input 0-30V 4 isolated output 0-30V, Power current load 0,7A / channel