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Products Description
Nexisense-NHN-106 Online Ammonium Nitrogen Sensor Product Definition
The Nexisense NHN-106 online ammonium nitrogen sensor is a professional instrument designed for measuring ammonium nitrogen using ion selective electrode technology, widely applied in water quality monitoring, wastewater treatment, and water resource management. This sensor allows for real-time online monitoring of ammonium ion concentrations in water, effectively assessing water pollution levels.
Measurement Principle
The NHN-106 sensor operates on the principle of ammonium ion selective electrode. This principle is based on a specific PVC membrane that exhibits a high selectivity for ammonium ions. The reference electrolyte within the sensor seeps out through a microporous salt bridge in a stable and slow manner, ensuring measurement accuracy and long-term stability. The sensor also integrates an automatic temperature compensation function to address the impact of temperature variations on the measurements, enhancing precision.
Structural Analysis
Sensor Structure
The NHN-106 is designed to be compact, facilitating installation and use. Its shell is made from corrosion-resistant materials such as ABS, PVC, and POM, ensuring durability in harsh environments.
Nexisense -NHN-106 Online Ammonium Nitrogen Sensor Main Components
| Component | Description |
|---|---|
| Ammonium Ion Selective Electrode | Utilizes PVC membrane, with high selectivity and stability |
| Reference Electrolyte | Seeps out slowly through a microporous salt bridge, maintaining a stable reference potential |
| Temperature Sensor | Automatic temperature compensation using Pt1000 sensor |
| Output Interface | RS-485 (supports Modbus RTU protocol), optional 4-20 mA |
| Installation Interface | 3/4 NPT threaded design for easy installation in pipes and tanks |
| Power Requirement | 12-24V DC |
Measurement Method
The NHN-106 sensor continuously monitors the concentration of ammonium ions in water through the ammonium ion selective electrode. Users can transmit data in real-time to PLCs, DCSs, or other industrial control systems via the RS-485 interface, facilitating data recording and analysis. Additionally, the sensor supports a 4-20 mA analog output to meet different monitoring requirements.
Calibration Process
The sensor supports two-point calibration. Users are advised to regularly calibrate the sensor based on actual water quality conditions to ensure measurement accuracy. It is recommended to use standard ammonium ion solutions for calibration and to follow the manufacturer’s specified procedures.
Daily Maintenance
Regularly check the sensor for cleanliness to ensure that the electrode surface is free from grease and dirt.
Replace the electrode as needed to maintain stable measurement performance.
Inspect electrical connections and data interfaces to ensure correct signal transmission.
Nexisense -NHN-106 Online Ammonium Nitrogen Sensor Product Advantages
High-Precision Measurement: Provides accurate ammonium nitrogen concentration data through ammonium ion selective electrode technology.
Automatic Temperature Compensation: Built-in temperature sensor automatically adjusts measurement results, eliminating the impact of temperature changes.
IP68 Protection Level: The sensor is designed to operate underwater, suitable for harsh environmental conditions.
Easy Installation: The 3/4 NPT threaded design supports various installation methods in water bodies.
Multiple Output Interfaces: Supports both RS-485 and 4-20 mA, compatible with a wide range of industrial devices.
Summary
The Nexisense NHN-106 online ammonium nitrogen sensor is an advanced and comprehensive water quality monitoring device. With its highly selective ammonium ion electrode and automatic temperature compensation features, it ensures accuracy and reliability in various water quality monitoring scenarios. Whether in water treatment, industrial wastewater monitoring, or ecosystem protection, the NHN-106 offers an efficient and convenient solution, making it an indispensable tool in water quality monitoring applications.
