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Online nitrite nitrogen analyzer

Online nitrite nitrogen analyzer

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Technical Features:

Touch screen for display and command input;
Multiple sampling and measuring modes;
Unique design;
Lower failure rate;
Less maintenance;
Lower reagent consumption and higher cost performance.







Technical data:

◆   Method of measurement according to: GB/T 7493-1987;

◆   Measuring range: 0.00-1.00 mg/L;

◆   Accuracy: ≤±10%;

◆   Reproducibility: ≤±10%;

◆   Measuring cycle: Min. 35 min;

◆   Sampling cycle: Periodic (with the interval adjustable between 10 min and 9999 min) and hourly measuring modes;

◆   Calibration cycle: Adjustable within the range of 1 to 99 days;

◆   Maintenance cycle: Once every month and approx. 30 min each time in general;

◆   Reagent consumption:
◆   Output: One-channel RS-232 &2-channel 4 ma-20 ma; GPRS communication.    

◆   Environmental requirements: A temperature-controlled room; recommended temperature: +5 °C-28 °C; 

◆   Humidity: ≤90% RH (non-condensing);    

◆   Power supply: AC220 V±10%, 50 Hz±10%, 5 A;

◆   Size: 1500 mm high x500 mm wide x450 mm deep;

◆   Others: Fault alarm &no loss of data in the case of power failure;

Touch screen for display and command input; 

In the case of fault reset or power ON after power failure, the analyzer automatically discharges residual reagent inside and restores the working condition;ual reagent inside and restores the working condition;







Measuring principle:

In the phosphoric acid medium with a PH of 1.8±0.3, the nitrite reacts with p-aminobenzenesulfonamide (“sulfanilamide” for short) and produces the diazo salt, and then couples with N-(1-naphthyl)-ethylene diamine and produces a red dye; the maximum absorption is realized at the wavelength of 540 nm.