Photometer
Photometer for drinking, process and waste water analysis
Applications: Water Treatment, Waste Water, Cooling-/Boiler Water, Pools, Scientific Applications, Beverage Industry, Laboratory and Field Testing
Applications of Lovibond Reagents » 
Reagents for Photometry » 
Reagents also suitable for use in Hach Photometer Systems »
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MiniDirectReliable Water Testing in a Pocket Sized Format. » |
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MaxiDirectModern, mobile photometer for rapid, reliable water testing. » |
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MultiDirectA versatile, multi-parameter photometer covering a wide range of tests for today´s water analysis requirements. » |
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CheckitDirectCompact, high-precision photometers for water testing. » |
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CheckitDirect COD VarioTesting equipment for user-friendly, precise measurement of chemical oxygen demand. » |
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SpectroDirectSpectralphotometer for Water Analysis. » |
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ThermoreactorsFor the digestion of samples when, for example, testing: COD, Total Phosphate, Total Nitrogen. » |
The principle of photometry
When specific reagents are added, the water sample takes on a degree of coloration that is proportional to the concentration of the parameter being measured.
The photometer measures this coloration.
When a light beam passes through the coloured sample, energy with a specific wavelength is absorbed by the test substance. The photometer determines the coloration of the sample by measuring the transmission or absorption of light of this wavelength (in other words, monochromatic light). The photometer then uses a microprocessor to calculate the required concentration and displays the result.