NH351 Online Digital Ammonia Nitrogen Sensor Probe
3 year agoDescription
NH351 online ammonia sensors are cutting-edge digital tools, offering plug-and-play convenience, sturdy POM cases, and IP68 waterproofing. Equipped with an innovative cleaning scraper, it automates underwater cleaning, minimizing manual maintenance requirements. Its replaceable pH and ammonium ion electrodes offer long-term cost savings.
The importance of monitoring ammonia nitrogen varies across industries:
- Sewage Treatment: Enables understanding of organic matter decomposition, optimizing treatment processes and enhancing efficiency.
- Chemical Plants: Assists in managing ammonia nitrogen levels during production, facilitating process adjustments and reducing wastewater discharge.
- Farming: Monitors ammonia nitrogen in breeding wastewater, guiding farming practices to minimize environmental impact.
- Food Processing: Ensures control over ammonia nitrogen content during production, optimizing processes and reducing wastewater.
Choosing a stable, reliable online ammonia nitrogen sensor is paramount.
Key features of the online ammonia sensors include:
- ISE Measurement: Utilizes ion electrode technology for precise measurements.
- Integrated Design: Combines ammonium ion, pH, reference electrode, temperature electrode, and optional potassium ion sensor.
- Automatic Compensation: For potassium ions (optional), pH, and temperature, ensuring accurate readings.
- RS485 Interface: Standard Modbus compatibility, seamlessly integrating with industrial control systems and ammonia controllers.
- Exceptional Performance: Demonstrates remarkable repeatability and stability, unaffected by ambient light.
Specification
Model | NH351 |
Measuring Principle | ion electrode measurement method |
Measuring Range(NH4-N) | 0~100mg/L or 0~1000mg/L |
Resolution(NH4-N) | 0.01mg/L |
Accuracy(NH4-N) | less than 5% FS or ±0.2mg/L, take the larger one |
Measuring Range(pH) | 5~9pH |
Response Time | T90<2min |
Temperature Range | 0~50℃ |
Working Pressure | 1Bar |
Power | DC 9~24V DC |
Output | RS485, Modbus RTU protocol |
Protection Grade | IP68 |
Cable Length | 10m (custom) |
Shell Material | POM |
Assembly | Investment |
Cleaning | Automatic |


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