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.
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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 |