Real time and accurate monitoring of nitrate nitrogen concentration is key to ensuring water quality standards and optimizing treatment processes in scenarios such as water quality monitoring, denitrification control in sewage treatment plants, and surface water eutrophication warning. Xiamen Jingchuan UV spectrophotometry nitrate nitrogen online analyzer with cleaning, relying on UV spectrophotometry core technology and automatic cleaning function, specially optimized for complex water sample interference problems, can achieve rapid detection of nitrate nitrogen without reagents, while reducing manual maintenance costs, becoming the preferred equipment for intelligent monitoring of nitrate nitrogen in the field of environmental protection.
Xiamen JingchuanUV spectrophotometry nitrate nitrogen online analyzer with cleaning
Real time and accurate monitoring of nitrate nitrogen concentration is key to ensuring water quality standards and optimizing treatment processes in scenarios such as water quality monitoring, denitrification control in sewage treatment plants, and surface water eutrophication warning.Xiamen Jingchuan UV method nitrate nitrogen online analyzer with cleaningBy relying on the core technology of ultraviolet spectroscopy and automatic cleaning function, specialized optimization is carried out for complex water sample interference problems, which can achieve rapid detection of nitrate nitrogen without reagents, while reducing manual maintenance costs, making it the preferred equipment for intelligent monitoring of nitrate nitrogen in the field of environmental protection.
Xiamen JingchuanUV spectrophotometry nitrate nitrogen online analyzer with cleaningCore technological advantages
Accurate detection by UV spectrophotometryBased on the absorption characteristics of nitrate nitrogen at the characteristic wavelength of 220nm ultraviolet, a dual beam spectroscopic design (220nm measurement wavelength+275nm reference wavelength) is adopted to eliminate the interference of dissolved organic matter and turbidity in water samples through a dedicated spectral analysis algorithm. No chemical reagents need to be added for direct measurement, avoiding the problems of reagent failure and waste liquid pollution in traditional chemical methods. Optimizing the concentration range of 0-100mg/L nitrate nitrogen, the measurement error in the low concentration range (0-10mg/L) is ≤± 2%, and the error in the high concentration range (10-100mg/L) is ≤± 1.5%. The results can be quickly obtained within 5 minutes, providing real-time data support for the regulation of nitrification tanks and surface water monitoring in sewage treatment plants.
Automatic cleaning function reduces maintenanceSpecially designed for suspended particles and biofilm adhesion issues in water samples, integrated with a water air dual flush automatic cleaning system. The cleaning cycle can be automatically set according to the turbidity of the water sample (adjustable from 1-24 hours), or forced cleaning can be triggered when abnormal detection data is detected. High pressure water flow is used to flush the inner wall of the measuring tank, and compressed air is used to dry residual moisture and remove attached impurities such as sludge and algae. The cleaning process only takes 40 seconds, which does not affect normal monitoring and extends the equipment calibration cycle to more than 3 months. Compared with analyzers without automatic cleaning function, it reduces 70% of manual maintenance workload and reduces the labor intensity of operation and maintenance personnel.
Stable operation against complex water samplesThe components that come into contact with water samples are made of 316L stainless steel and PTFE (polytetrafluoroethylene) materials, which are resistant to corrosive substances such as acids, bases, and sulfides in sewage. They are suitable for various types of water samples such as biochemical effluent from sewage treatment plants, industrial wastewater, and surface water. The flow system adopts an anti clogging design, with a sampling tube diameter of 8mm and a built-in blowback device, which can effectively prevent sludge flocs and impurities from blocking the pipeline; The optical components adopt a sealed dust-proof structure to avoid the influence of moisture and dust environment on detection accuracy. The equipment has a protection level of IP65 and can operate continuously in an environment of -10 ℃ -50 ℃, with an average time of over 10000 hours.
Intelligent data management and linkageSupports 4-20mA analog signals and RS485 digital transmission (Modbus RTU protocol), seamlessly integrating with water quality monitoring platforms and sewage treatment plant control systems to achieve real-time monitoring and data storage of nitrate nitrogen concentration (capacity ≥ 12 months). Built in over limit alarm function, when the concentration exceeds the set threshold, it automatically triggers an audible and visual alarm and pushes it to the management personnel's mobile phone, making it easy to adjust the processing technology in a timely manner. For example, in the denitrification process of sewage treatment plants, aeration equipment and carbon source feeding systems can be linked to dynamically adjust operating parameters based on nitrate nitrogen concentration, increasing denitrification efficiency by 15% -20% while reducing energy and chemical consumption.
Xiamen Jingchuan Spectral Nitrate Online AnalyzerKey technical parameters
measurement rangeNitrate nitrogen levels range from 0-100mg/L (expandable to 0-200mg/L), meeting the monitoring needs of multiple scenarios.
measurement accuracy:0-10mg/L:±2%; 10-100mg/L: ± 1.5%, ensuring accurate data.
Cleaning MethodWater and gas dual flushing automatic cleaning, cleaning time of 40 seconds, can be timed/automatically triggered.
working conditionsTemperature -10 ℃ -50 ℃, humidity ≤ 95% RH (non condensing), pressure ≤ 0.6MPa.
Protection level:IP65, Dustproof and waterproof, suitable for outdoor and workshop environments.
data output:4-20mA/RS485/Modbus, Support integration with monitoring systems.
Xiamen Jingchuan Co., Ltd. UV based nitrate nitrogen online detectorMultiple application scenarios
Denitrification monitoring of sewage treatment plantsInstalled at the outlet of nitrification and denitrification tanks, it monitors changes in nitrate nitrogen concentration in real time, providing a basis for adjusting aeration intensity and carbon source dosage, and avoiding excessive total nitrogen in effluent due to nitrate nitrogen accumulation. After application in a municipal sewage plant, the compliance rate of total nitrogen in effluent has increased to 98%.
Surface water monitoringLong term online monitoring of nitrate nitrogen in rivers, lakes, reservoirs, and other water bodies, to timely grasp the trend of eutrophication in water bodies, provide data support for water environment governance, and help improve water quality in river basins.
Industrial wastewater controlFor industrial wastewater from industries such as chemical and food processing, monitor the concentration of nitrate nitrogen after pre-treatment to ensure that wastewater discharge meets industry standards, avoid pollution to receiving water bodies, and reduce environmental risks for enterprises.
Jingchuan Shares Spectral Nitrate Nitrogen Online Analyzer with CleaningWith the advantages of no reagent detection, automatic cleaning and maintenance reduction, and strong anti-interference, it provides an efficient solution for nitrate nitrogen monitoring in the field of environmental protection. Whether it is ensuring water quality meets standards or optimizing treatment processes, this equipment can play a key role in helping the environmental protection industry achieve intelligent and green monitoring, and contribute to water environment governance.
Self cleaning nitrate nitrogen online detector UV methodFeatures
Probe direct immersion measurement without sampling and preprocessing;
No need for chemical reagents, no secondary pollution;
Short response time, capable of continuous measurement;
The sensor has an automatic cleaning function, which can reduce maintenance;
Simple to use, reliable results, and interface operation instructions can reduce operational errors;
A visual alarm system has been set up to provide important alarm functions;
The controller can be wall mounted/panel mounted/clamp tube mounted.



Sewage nitrate nitrogen analyzerTechnical parameters of sensors
measurement range |
0.1~40.0mg/L ( 2mmoptical path) |
measurement accuracy |
± 5% |
repetitiveness |
± 2% |
resolution |
0.01 mg/L |
pressure range |
≤0.4Mpa |
sensor material |
fuselage:SUS316L(Standard version), titanium alloy (seawater version); Cable:PUR |
communication protocol |
MODBUS RS485 |
Storage temperature |
-15to50℃ |
Operating Temperature |
0to45℃(Not frozen) |
size |
diameter69mm*length380mm |
weight |
3.2KG |
Protection level |
IP68/NEMA6P |
cable length |
standard configuration10Meter cable, can be extended up to100rice |
Online nitrate nitrogen analyzer for wastewater treatment in sewage treatment plantsTypical Applications
In the fields of drinking water/surface water/industrial production process water/sewage treatment, continuous monitoring of nitrate concentration dissolved in water is particularly suitable for monitoring sewage aeration tanks and controlling denitrification processes.
The sensor of the spectral nitrate nitrogen analyzer has an automatic cleaning functionController technical parameters:
display output |
128*64Graphic dot matrix LCD withLEDStrong backlight for operation under direct sunlight |
electricity source |
Communication power supply:85-500VAC (50/60HZ);DC power supply:9~36VDC |
Main materials |
PA66+GF25+FR(Top cover); Aluminum alloy powder coating (lower shell) |
lose go out |
Three routes4-20mA |
succeed electricity device |
Three way relay, program set response parameters and response values |
Digital Communication |
matchMODBUS RS485Communication function, capable of real-time transmission of measurement values |
Storage temperature |
-20to70℃ |
Operating temperature |
-15to60℃ |
waterproof rating |
IP65/NEMA4X |
ruler inch |
145mm*125mm*162mm(Long)*wide*High) |
heavy quantity |
1.35KG |