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 »

	MD100 Modern, mobile photometer for rapid, reliable water testing.
	MD 200 Compact, high-precision photometers for water testing.
	MD 200 COD Testing equipment for user-friendly, precise measurement of chemical oxygen demand.
	MD 600 Modern, mobile photometer for rapid, reliable water testing.
	MultiDirect A versatile, multi-parameter photometer covering a wide range of tests for today´s water analysis requirements.
	SpectroDirect Spectralphotometer for Water Analysis.
	Thermoreactor RD125 For the digestion of samples when, for example, testing: COD, Total Phosphate, Total Nitrogen.
	Membrane filter set For use when preparing samples for photometric measurements.

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.