Digital Nitrate Nitrogen Sensor

Advanced Digital Nitrate Nitrogen Sensor: Precision Monitoring for Critical Water Applications

This cutting-edge Digital Nitrate Nitrogen Sensor utilizes a sophisticated spectrometer-based method to precisely measure Nitrate Nitrogen (NO3-N) concentration. It directly detects NO3-N by analyzing its unique absorption of 210 nm UV light. This innovative optical principle allows for highly accurate and interference-free measurements, making it ideal for a wide range of water quality monitoring needs.

How it Works: As water samples pass through the sensor's precisely engineered slit, a monochromatic UV light beam is directed through the liquid. The nitrate ions present in the water selectively absorb a portion of this UV light. The remaining light then reaches a detector on the opposite side. By quantifying the difference between the initial light intensity and the transmitted light, the sensor accurately calculates the real-time nitrate concentration. This direct, in-situ method eliminates the need for complex sample preparation, providing immediate and reliable data.

Important Compatibility Note: This sensor is exclusively designed for seamless integration and optimal performance with the Sper Scientific 870001 Multi-Parameter Water Quality Analyzer.

Key Features & Advantages:

• Direct & Accurate Measurement: Provides direct, real-time measurements of nitrate nitrogen (NO3-N) from the sample. This eliminates the need for time-consuming and labor-intensive pre-processing or traditional sampling, ensuring instant data availability and improved operational efficiency.
• Eco-Conscious Operation: Designed for sustainability, this sensor requires no chemical reagents for its operation. This eliminates the generation of secondary pollution, reducing environmental impact and disposal costs associated with chemical-based methods.
• Rapid & Continuous Monitoring: Delivers a remarkably fast response time, enabling continuous, real-time online measurement. This capability is crucial for dynamic environments where immediate data is essential for decision-making and process control.
• Minimal Maintenance Requirements: Features an intelligent automatic cleaning function that periodically purges the sensor optics. This self-cleaning mechanism significantly reduces manual maintenance demands, ensuring prolonged accuracy and extending the operational lifespan of the device.
• Robust Electrical Protection:
  • Built-In Polarity Protection: Includes positive and negative reverse connection protection, safeguarding the sensor from potential damage due to incorrect power supply wiring.
  • Enhanced RS485 Terminal Safety: Offers dedicated power supply protection for the RS485 A/B communication terminals, ensuring secure and stable data transmission even in electrically noisy environments.
• Durable Construction: Built with high-grade materials to withstand challenging conditions (see specifications below).

Versatile Applications: This sensor is a vital tool for precise nitrate monitoring across numerous sectors:

• Drinking & Surface Water Management: Essential for ensuring the safety and quality of drinking water sources and monitoring natural water bodies like rivers, lakes, and reservoirs for potential nitrate contamination.
• Industrial Water & Wastewater Treatment: Crucial for optimizing processes in industrial facilities, including process water management and efficient nitrate removal in wastewater treatment plants, helping meet stringent discharge regulations.
• Optimized Nitrate Control: Specifically designed for continuous, high-precision monitoring of nitrate concentration, it is particularly beneficial for the efficient management of sewage aeration tanks and denitrification processes, leading to improved effluent quality and reduced operational costs.

Technical Specifications:

• Measuring Range: Nitrate Nitrogen (NO3-N): 0.1 to 40.0 mg/L
• Accuracy: ±5% of reading
• Repeatability: ±2%
• Resolution: 0.01 mg/L
• Pressure Range: ≤0.4 Mpa
• Sensor Body Material:
  • Freshwater Applications: SUS316L Stainless Steel
  • Ocean Marine Applications: Titanium Alloy (for enhanced corrosion resistance)
• Cable Material: PUR (Polyurethane) for durability and flexibility
• Calibration: Standard factory calibration; user calibration options available through the Sper Scientific 870001 unit.
• Power Supply: 12VDC
• Communication Interface: MODBUS RS485 (industry-standard for reliable data integration)
• Working Temperature: 0-45℃ (Non-freezing conditions)
• Dimensions: 2.7 x 15 inches (69mm x 380mm)
• Ingress Protection: IP68 (Dust-tight and protected against continuous immersion in water)
• Cable Length: Standard 10 meters; can be extended up to 100 meters for flexible installation.