Online monitoring of total nitrogen concentration in drinking water and surface water;
Online monitoring of total nitrogen concentration in municipal sewage inlet and outlet, pollution source discharge outlet, and industrial wastewater outlet.
After potassium sulfate oxidation, ultraviolet spectrophotometry
In the presence of potassium persulfate, the nitrogen-containing compounds in the water sample are fully oxidized and digested to oxidize the nitrogen-containing compounds in the water sample to nitrate ions, and then the absorbance measured by ultraviolet spectrophotometry is used to calculate the total nitrogen content.
l Ten-port valve with sapphire core, high wear resistance, strong acid and alkali resistance, organic solvent resistance, strong service life and high stability;
l The syringe pump is used for precise quantification, and the water sample and reagent are more stable and accurate to ensure the measurement accuracy.
l Using a specially designed reference method, the slight displacement of the digestion tank and the slight pollution of the digestion tank will not affect the measured value;
l With waste liquid separation function, to achieve the separation of high-concentration reaction waste liquid and low-concentration cleaning waste liquid;
l With automatic dilution function, can automatically adjust the range file according to the actual water quality on site;
l Built-in quality control functions such as standard recovery, zero point verification, standard sample verification, parallel sample test, etc., and it can be started automatically, manually, remotely, etc.;
l With automatic fault diagnosis and abnormal information upload and recording functions, such as parts failure, over-range alarm, over-standard alarm, lack of reagent alarm and other information;
l With overheating protection: the heating temperature is too high, the heater is automatically powered off;
l After abnormal reset and power failure, the instrument automatically discharges the residual reactants in the instrument and automatically restores to the original working state. With power-on alarm function, the instrument will generate alarm information when power is turned on again after power-off;
l With analysis instrument process log and measurement data recording and alarm information storage function, data calculation is recorded once every hour, can be stored for 3 years, and U disk can quickly export data;
l With three-level management authority;
l Online monitoring of total nitrogen concentration in drinking water and surface water;
l Online monitoring of total nitrogen concentration in municipal sewage inlet and outlet, pollution source discharge outlet, and industrial wastewater outlet.
±10% or ±0.1mg/L（Bigger one）
7 inch display, operation interface
The sampling period
Period measurement (adjustable from 1h to 30d), whole point measurement mode, external trigger mode optional
Manual calibration or automatic calibration
General once a month
Temperature adjustable room, recommended temperature +15～25℃ Humidity ≤90% (no condensation)