Online total nitrogen analyzer, TNG-3020


BOQU Instrument is global manufacturer in water quality analyzer ,water quality sensor, and solutions for industrial water treatment projects. We provide water measurement solutions for  COD,BOD,Ammonia nitrogen ,total nitrogen,total phosphorus,nitrate,nitrate nitrogen,chlorophyll,blue-green algae,chloride,fluoride,oil-in-water,Total Nickel,Total Zinc,Total Copper,Total Lead,Total Iron and other heavy metals etc.Our customers come from various industries, such as chemical, food & beverage, life sciences, power & energy, primaries & metal, oil & gas and water & wastewater and so on.

#Online Total Nitrogen Analyzer TNG-3020

#Online total nitrogen analyzer, TNG-3020


TNG-3020 online total nitrogen anlayzer is made by BOQU Instrument,BOQU has completely independent intellectual property’s the world-class instrument to measure toal nitrogen.This total nitrogen analyzer is simple to measure, and the sample to be tested does not need any pretreatment. The water sample riser can be directly inserted into the system water sample to measure the total nitrogen concentration. The maximum measuring range of the equipment is 0~500mg/L TN. This method is mainly used for online automatic monitoring of total nitrogen concentration such as waste (sewage) water discharge point source and surface water.

Technical parameters

Product TNG-3020 Online Total Nitrogen Analyzer
Standard Resorcinol spectrophotometry
Measuring range 0.0 ~10mg/L,0.5~100 mg/L,5~500 mg/L
Accuracy ±0.05mg/L when measured value ≤0.5mg/L; ±10% when measured value >0.05mg/L
Repeatability ≤±5%
Stability ≤±10% in 24 hours
Measurement period The minimum measurement period is 50 minutes, according to the actual water sample, The digestion time can be modified from 5 to 120 minutes.
Sampling period Time interval(55~9999min adjustable by yourself) and Integral time measurement mode;
Calibration period Adjustable in 1~99days;
Maintenance period Usually one time per month and 30 minutes each time
Output 4~20mA( 2 ways) RS232,RS485
Ambient requirement It should be indoor and temperature can be adjustable. The recommend temperature is +5~28℃;humidity≤90%(no dew)
Power AC220±10% V,50±10% Hz,5 A;
Dimension size Height 1450×Width510×Length 450 mm;
Data saved The data can be saved when abnormal alarms and power off.
Display Touch screen and Command Input
Other When Reset after abnormal alarm and power on after off, the instrument automatically discharges residual reactants in the instrument and automatically resumes working status.

Main features

Unique design makes this product have lower failure rate, lower maintenance, lower reagent consumption and higher performance than similar instruments.

Select valve assembly: select reagent sampling timing.

Metering component: Accurate metering of reagents through visible photoelectric system, which overcomes the quantitative error caused by wear of peristaltic pump tube; at the same time, it realizes accurate quantification of trace reagents, each dose is only 1.5 ml, which greatly reduces the reagent usage

Injection assembly: peristaltic pump suction under negative pressure, there is always an air buffer between the reagent and the pump tube to avoid corrosion of the pump tube.

Sealed digestion component: high temperature and high pressure digestion system, speeding up the reaction process, overcoming the corrosion of corrosive gas volatilization of the open system.

Reagent tube: It adopts imported new PTFE transparent hose with a diameter of more than 1.5mm, which reduces the probability of water sample clogging.