How is the color of a sample measured using the Colorimeter?

The colorimeter is an instrument used to determine the color of a sample. It is based on a photometer, which measures the intensity of light at a specific wavelength and compares the result with the intensity of a reference light at the same wavelength. The comparison is made by using an optical density scale or calibration curve.

We at Kalstein have for our customers the ideal and useful equipment to determine and evaluate the deterioration of the products. Thanks to the light source of D65 D50 A. LED type. For example, if you are monitoring the color of a paint in a building, our Colorimeter can detect if the color of the paint is fading due to exposure to sunlight.

Functional Features

The most important feature of a colorimeter is its spectrophotometer, which measures the absorbance of light in a sample. It consists of a light source, a lens, a sample cell, and a detector. The light source emitted passes through the sample and the lens focuses the light on the detector. The detector measures the amount of light that is absorbed into the sample and sends a signal to the microprocessor of the colorimeter, which calculates the absorbance and the result is displayed on the screen.

The equipment is also sensitive to all light colors, but most use color filters to select a specific wavelength range. For example, if the colorimeter is to be used to measure the chlorine content in water, a color filter shall be selected to measure the absorbance of chlorine in the wavelength range of the visible light spectrum. The sensitivity can be adjusted to make you more or less sensitive to light. It is measured in Optotropic Units (OTUs) with a sensitivity of 100 OTU, is 10 times more sensitive than with a sensitivity of 10 OTUs and is adjusted by the use of an optical density filter (ODF). The measurement range is measured in absorbance units (A). A colorimeter with a measuring range of 0.3 A is 10 times more sensitive than a colorimeter with a

Method of use

To use the colorimeter, place the sample on the device and then select the sample area to be measured. The device will measure the color of the sample in the selected area and then compare the measured values with the standard value table. If desired, reflectance measurements can also be taken to assess color brightness.

The colorimeter is used in various industries, such as textile in charge of dyeing and finishing fabrics, leather is used for curing and finishing, chemistry for color compounds and dyes and the ink industry to determine the color of ink, in addition in scientific research it is used to determine the color of tissues and for diagnosis and treatment of diseases. The colorimeter can be used to measure the color of a sample in any form, such as a drop of liquid, a piece of cloth, a piece of plastic, or a piece of metal. From a variety of wavelengths, such as in ultraviolet, visible, or infrared. The wavelength range in which the measurement can be performed depends on the colorimeter model.

Colorimeter Kalstein mark

At Kalstein, we offer you the best medical equipment technology, and the YR series Colorimeter is the right one to be used in any industrial sector and adapted to the needs of users. We can provide our innovative equipment that features special functions, equipped with high-end color management software that can be connected to a PC to achieve more extension functions that help perform color difference analysis, cumulative color difference analysis, chromaticity index, color sample database management, object color simulation, etc.

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