Koehler Automated Colorimeter

The Koehler Automated Colorimeter is a microprocessor-controlled spectrophotometer with a wavelength range from 380 to 720 nm for colour measurement or 320 nm up to 1100 nm for routine analysis. It can carry out an exact colorimetric evaluation in conformity with several ISO/ASTM standards with just a single measurement and display the result in terms of traditional colour systems such as Iodine, Hazen/APHA or Gardner colour numbers as well as in modern CIE-L*a*b* colour values.

Besides the over 20 colour indexes, transmittance and absorbance can be measured at individual wavelengths, so that the colorimeter can be used universally for analytical purposes in the laboratory.

The automated colorimeter comes with a long list of features such as touch-screen TFT-colour display, automatic cuvette recognition, automatic zero calibration program, reference beam technology, password protection and GLP documentation.