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Special Parameter Online Monitoring Instrument
Nitrite Nitrogen On-line Analyzer
product details

Model: NO2N-8000


System Overview


NO2N-8000 nitrite nitrogen (nitrite nitrogen) on-line analyzer is a new generation of automatic maintenance-free analyzer based on China’s standard method. The nitrite nitrogen in the water sample reacts with 4-aminobenzenesulfonic acid amine to produce diazo salt under certain acidic conditions, and the diazo salt is coupled with the characteristic chromogenic agent to produce a red solution. The depth of the color of the solution is proportional to the content of nitrite nitrogen in the sample. The instrument can directly determine the content of nitrite nitrogen in the water sample through photoelectric colorimetry.


System Features


· The water sample pretreatment device adopts maintenance-free design, which can ensure that the maintenance cycle of the pretreatment device exceeds half a year.

· The chemical digestion time can be adjusted, and the determination process and results meet the relevant standards.

· All imported devices, analysis flow path design and reagent formulation ensure measurement reproducibility, which can reach 5% at present.

· Automatic operation, no personnel on duty, can achieve automatic zero, automatic calibration, automatic measurement, automatic cleaning, automatic maintenance, self-protection, automatic recovery and other intelligent functions.

· Online monitoring methods are diversified, which can realize manual measurement at any time, automatic timing measurement, automatic periodic measurement and other measurement methods.

· Automatic leakage alarm function, when there is a reagent leak, the instrument automatically alarms, prompting the user to maintain.


Technical Parameters


Test method: photoelectric colorimetry;
Test range: 0 ~ 2/10/50mg/L;
Detection limit: 0.2mg/L;
Accuracy: < 10%;
Reproducibility: < 5%;
Response time: 20min;
Test mode: timing, equal interval, manual;
Reagent consumption: 1mL at a time;
Maintenance mode: self-maintenance, user maintenance interval >5 months;
Self-monitoring: self-monitoring of leaks; Instrument status self-diagnosis;
Analog output: 4– 20mA analog output;
Relay control: 2 24V 1A relay high and low point control;
Data transmission mode: RS232, RS485;
Display: 8.0-inch LCD touch screen, resolution 800×600;
Data storage: one year of valid data;
Reagent change: change once a month;
Operating temperature: +0 ~ 50°C;
Power supply: 220 ±10% VAC; 50-60Hz;
Power consumption: approximately 80W;
Size: 530×1340×390mm;
Weight: approximately 45Kg.