TN-300 In Situ Total Nitrogen Analyzer

The detection principle of the TN-300 Total Nitrogen Analyzer is mainly based on the photochromic acid spectrometry and improved on this basis: at 120-124 ℃, alkaline potassium persulfate converts all forms of nitrogen into nitrate nitrogen, and in strong acid conditions. In the next step, the nitrate in the water sample reacts with the chromogenic reagent to form a brown-yellow complex, and its absorbance is measured at a wavelength of 420 nm. After internal calculation, the concentration value is directly displayed. In situ analyzer for the determination of total nitrogen concentration in water bodies such as surface water, nearshore and estuaries. Through the online monitoring of total nitrogen in water, the instrument can provide users with continuous and stable monitoring data required for water quality investigation, water environment monitoring and early warning of ecological disasters. Product advantages Chromochromic acid spectrophotometry using national standard method Small size, immersion installation, in-situ water quality monitoring Unique and compact structure design, low reagent consumption, low operation and maintenance cost Precise optical system, high detection accuracy and good stability Good correlation with manual analysis, suitable for sewage outfall and various water environment monitoring It can be integrated into buoys, multi-parameter monitoring systems, or run on ships, shore-based deployment, etc.

Product Parameters

Model TN-300
Measurement principle Chromotropic acid spectrophotometry
Measuring range 0~5 mg/L
precision ±10%F.S.
Resolution 0.001mg/L
Calibration method Two-point calibration
output method RS-485Bus,Modbus/RTU Protocol
power supply 24VDC±10%
Power consumption <30W
working conditions 0~45℃、<0.1MPa
storage temperature -5~45℃
Protection class IP68
Installation method Immersion approach
cable length 5 meters,other sizes can be customized
Shell material PVC Material

Media Material