- Material: :
NH3-N Online Analyzer, NH3-N Online Meter, Water Analyzer, Sewage Water Treatment, Waste Water Treatment
The NH3-N in the water refers to free NH3. The NH3 mainly comes from the decomposition products of organic nitrogen compounds wastewater by microbial action, industrial wastewater containing coking ammonia and farmland drainage. The water with high content of NH3-N shows toxic effects on fish and has different degrees of harm on human beings. Determination of NH3-N content in water helps to evaluate the status of pollution and self-purification. So NH3-N is an important indicator of water pollution.
This analyzer can automatic continuous work for long-term in an unattended manner. And it is widely used in industrial pollution discharge wastewater, municipal wastewater treatment plants, surface water and so on. Depending on the complexity at the scene, for ensure reliable and accurate testing, can choose different pre-treatment system.
In the alkaline medium (pH =11.7), the ammonia and ammonium ions in the sample reacts with the hypochlorite released from sodium dichloroisocyanurate solution to form chloramine. Under the condition of 40℃ and with the presence of sodium nitroferricyanide, the chloramine reacts with the salicylate to form blue-green compounds, and then the absorbance is measured with a spectrophotometer at the specific wavelength.
① Adopt the new photoelectric quantitative technology, which is not affected by the high chroma, many suspended solids, lots of bubbles and other interference factors, thus ensuring high reliability and precision as well as strong anti-interference ability;
② Be characterized by high detection accuracy, low lower limit of measurement and small long-term drift amount of instrument;
③ Be featured with functions of self-test with one key and self-diagnosis;
④ Adopt the single-channel high-integration valve set, which ensures simple and quick maintenance and cleaning;
⑤ Be configured with 24-hour networking function, thus monitoring the running state of instruments at anytime and anywhere;
⑥ Be featured with functions of alarm, quality control and reverse control;
⑦ Be characterized by functions of automatic cleaning and automatic calibration;
⑧ Be featured with functions of hourly measurement, interval measurement and externally controlled measurement;
⑨ Be able to work automatically after power down and recovery;
⑩ Be featured with automatic prompt and automatic reset in case of fault and lack of reagent (sample);
⑪ Have the function of fault recording;
⑫ Can save more than 3 years of historical data;
⑬ Meet the requirement for the separate discharge of cleaning liquid and waste liquid.
HJ536-2009 Water Quality - Determination of Ammonia Nitrogen - Salicylic Acid Spectrophotometry (Nessler method can be customized)
0-2 mg/L; 0-10 mg/L; 0-50 mg/L; can be customized
Indicated value error
< 2 hours/month
3 months /500ml