This product adopts the DPD spectrophotometry method. Free chlorine/total chlorine directly reacts with N,N-diethyl-1,4-phenylenediamine (DPD) to generate a red compound. Its aqueous solution has a maximum absorption at a wavelength of 520nm. The absorbance is measured at this wavelength to calculate the concentration of free chlorine/total chlorine.
It takes only 20 minutes from sample injection to ending analysis.
The influence of turbidity is overcome through optimized design.
The parameters such as free chlorine, total chlorine, and chlorine dioxide can be switched by replacing reagents.
It has the functions of standard sample verification, zero point verification, span verification, zero point calibration, standard sample calibration, automatic calibration of working curve, and automatic test of spike recovery rate.
The instrument supports remote control function.
It has automatic alarm function for instrument failure, such as component failure, over-range alarm, abnormal data alarm, lack of reagent (water sample, distilled water, reagent) alarm and other information, and can record and upload.
It has the function of self-balancing detection optical path.
It has the function of regular automatic cleaning and automatic calibration.
It has the function of automatic range switching, which can automatically adapt to changes in water sample concentration.
It can be applied to the evaluation of disinfection effect of medical wastewater, drinking water source and water quality safety assessment of pipe network water.
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