What's NO₃⁻N Process Online Water Quality Analyzer
Release time:2025.11.27
NO₃⁻N Process Online Water Quality Analyzer
The NO₃ -N (nitrate nitrogen) process online water quality analyzer is used for real-time, continuous monitoring of nitrate nitrogen (NO ₃ -N) concentration in water automatic instrument, widely used in environmental protection, industrial, municipal and other fields. Its core function is to quickly detect the nitrate nitrogen content in water samples through specific technologies, so as to help users to grasp the water quality changes in time and optimize the treatment process.
I.Core technology principle
UV-absorption method (UV 210 nm)
- The characteristic absorption spectrum at 210 nm is used to measure directly, without chemical reagents and with low maintenance cost.
- It is suitable for clean water (such as drinking water, surface water), but is prone to turbidity and color interference and needs pretreatment.
II.Key technical parameters
parameter | Typical range | accuracy | response time |
measuring range | 0.1500 mg/L (range-scalable) | ±2%–5% | For 110 min |
resolution ratio | 0.01–1 mg/L | - | - |
Calibration method | Automatic calibration (UV method) | - | - |
levels of protection | IP65/IP68 | waterproof and dustproof | - |
III.Main functions and characteristics
Automation and intelligence
- Support continuous measurement, cycle measurement, remote trigger and other modes, automatic range switching.
- Built-in fault diagnosis, liquid deficiency alarm, automatic cleaning function, reduce manual intervention.
Environmental protection and low operation and maintenance
- The UV method has no reagent consumption, environmental protection, and low cost.
Multi-scene adaptability
- Suitable for surface water, drinking water, industrial wastewater, sewage treatment plant and other scenarios.
- Support for multiparameter integration (such as turbidity, pH, temperature compensation).
IV.Application area
- Environmental protection monitoring: early warning of surface water and groundwater pollution.
- Industrial process: cooling circulating water, boiler water, wastewater treatment efficiency monitoring.
- Municipal sewage: denitrification process control, discharge outlet compliance monitoring.
- Agricultural irrigation: soil leaching water, farmland drainage nitrate nitrogen monitoring.
V.Selection advice
- Water sample type: clean water body selection by ultraviolet method
- Range requirements: select the appropriate range according to the actual concentration (low range 05 mg/L, high range 0500 mg / L).
- Compliance: confirmed industry standards (e. g. HJ / T 346-2007).
- Scalability: Select models that support multi-parameter expansion and remote monitoring.
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