0 to 3 V. Resolution (12 bit): 732 µm. 5 colorimeter wavelengths: 470 nm, 520 nm, 573 nm, 625 nm, 660 nm, 850 nm IR for turbidity
I. Working principle
A colorimeter is a device used to measure the absorbance of light by a liquid sample. The colorimeter sensor shines light through the sample and detects how much light of specific wavelengths is absorbed. The software then displays the data graphically, allowing the analysis of concentration changes and color intensity in the solution.
II. Specifications
0 to 3 V.
Resolution (12 bit): 732 µm
5 colorimeter wavelengths: 470 nm, 520 nm, 573 nm, 625 nm, 660 nm, 850 nm IR for turbidity
III. Structure and function
The sensor terminal comes with a 1.8-inch color LCD screen
The sensor terminal is equipped with 5 function buttons. The operation interface is simple and convenient
The sensor terminal supports high-speed USB data channel, which enables high speed transmission of the data from the terminal to other devices such as PC, tablet or mobile phone
The sensor terminal supports wireless communication with experimental terminals
The sensor terminal has a built-in removable battery with a capacity of 1800mAh
The sensor terminal is designed with a hidden buckle sensor interface to support combined experiments with other sensors
The sensor terminal has a fixation spot to get it fixed on the iron frame conveniently and combined with traditional lab equipment for experiments
The sensor terminal supports the latest operating systems, such as iOS, Android, Windows, etc.
IV. Typical applications
A colorimeter sensor measures the absorbance or transmittance of light through a liquid sample to determine the concentration of substances. Applied research: Analyze how concentration changes affect light absorption, study chemical reactions, and monitor changes in solution color over time.
– Determine the concentration of a solute using Beer–Lambert law
– Monitor the rate of a chemical reaction based on color change
– Investigate the effect of dilution on absorbance
– Compare the absorbance of different solutions or food dyes
– Measure the transparency or turbidity of water samples
V. Caution
– Use only clean, transparent cuvettes or test tubes for measurements to avoid contamination or incorrect readings
– Ensure the cuvette is properly aligned in the colorimeter’s sample holder, with the clear sides facing the light path
– Avoid touching the transparent sides of the cuvette with fingers — fingerprints can affect light transmission
– Fill the cuvette to the recommended level (typically 3/4 full) to ensure accurate and consistent results
– Make sure the outside of the cuvette is dry and clean before inserting it into the colorimeter
– Always use the correct wavelength filter or setting for the substance being measured
– Avoid exposing the colorimeter to direct sunlight or strong ambient light during measurement, as this may interfere with the sensor readings
– Calibrate the colorimeter with a blank (usually distilled water or the solvent used) before taking any measurements
