Ammonia Nitrogen Sensor PRE673-A
Ammonia Nitrogen Sensor PRE673-A
Monitoring ammonia nitrogen (NH4-N) in water is a critical requirement across environmental protection, aquaculture, industrial wastewater treatment, and municipal water management. As regulatory standards become increasingly strict, industries need measurement instruments that are accurate, stable, user-friendly, and cost-effective. The Ammonia Nitrogen Sensor PRE673-A is designed to meet these needs with outstanding performance, durability, and seamless integration into modern water monitoring systems.
Ammonia Nitrogen Sensor PRE673-A – High-Precision Online NH4-N Monitoring Solution
Monitoring ammonia nitrogen (NH4-N) in water is a critical requirement across environmental protection, aquaculture, industrial wastewater treatment, and municipal water management. As regulatory standards become increasingly strict, industries need measurement instruments that are accurate, stable, user-friendly, and cost-effective. The Ammonia Nitrogen Sensor PRE673-A is designed to meet these needs with outstanding performance, durability, and seamless integration into modern water monitoring systems.
The Ammonia Nitrogen Sensor PRE673-A is an advanced online device that measures ammonia nitrogen based on an ion-selective electrode (ISE) method. This technology enables continuous, real-time detection with high accuracy, making it ideal for long-term water quality surveillance. The sensor incorporates multi-parameter automatic compensation, including temperature, pH, and potassium ion correction, ensuring that the measured NH4-N value remains accurate even under fluctuating environmental conditions.
Overview of Ammonia Nitrogen Monitoring
Ammonia nitrogen includes both free ammonia (NH3-N) and ammonium ions (NH4⁺-N), which are key indicators of organic pollution and water quality degradation. High concentrations of ammonia nitrogen can cause oxygen depletion, toxicity to aquatic organisms, and negative impacts on water treatment processes. Therefore, using a reliable Ammonia Nitrogen Sensor is essential for early detection, rapid response, and efficient water management strategies.
Traditional laboratory-based testing requires sampling, reagent preparation, and long processing times. In contrast, the PRE673-A provides continuous online monitoring with minimal maintenance, offering a more responsive and cost-effective solution for modern water quality systems.
Key Features of the Ammonia Nitrogen Sensor PRE673-A
High Measurement Accuracy
The sensor applies an ion-selective electrode system that delivers precise measurement with excellent repeatability. Integrated temperature and pH compensation ensures accurate readings regardless of sudden changes in water characteristics.
Automatic Multi-Parameter Compensation
PRE673-A includes built-in:
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Temperature compensation
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pH compensation
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Potassium ion interference correction
These features significantly reduce measurement errors and enhance stability in diverse water environments.
Durable and Low-Maintenance Design
The sensor housing is made from corrosion-resistant materials suitable for long-term immersion. Electrodes are replaceable, allowing fast maintenance and extending product lifecycle. With an IP68 protection rating, the sensor can be fully submerged for extended periods without performance degradation.
Fast Response Time
The sensor provides real-time data output, enabling operators to respond quickly to pollution incidents, process variations, or environmental changes.
RS-485 Modbus Communication
The PRE673-A supports RS-485 output with Modbus protocol, ensuring:
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Easy installation
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Simple integration into SCADA, PLC, or datalogger systems
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Seamless connection with standard online monitoring platforms
This makes the sensor ideal for automated and remote monitoring applications.
Technical Performance of the PRE673-A Sensor
| Parameter | Specification |
|---|---|
| Ammonia nitrogen range | 0–100 mg/L NH4-N |
| Ammonia nitrogen precision | 3% |
| Ammonia nitrogen resolution | 0.1 mg/L |
| pH range | 4–10 |
| pH accuracy | ±0.1 |
| pH resolution | 0.01 |
| Protection level | IP68 |
| Maximum depth | 10 meters underwater |
| Temperature range | 0–50 °C |
| Output signal | RS-485 (Modbus) |
| Installation | Immersion type |
| Power supply | DC 6–12 V ±10%, <50 mA |
| Cable length | 5 meters (customizable) |
| Housing material | POM |
Applications of the Ammonia Nitrogen Sensor
Thanks to its robust construction and accurate measurement capabilities, the PRE673-A is widely used in:
Environmental Monitoring
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Rivers, lakes, and reservoirs
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Groundwater quality surveillance
Wastewater Treatment
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Industrial discharge monitoring
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Municipal wastewater processes
Aquaculture
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Monitoring fishpond NH4-N levels to prevent toxicity
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Real-time water quality tracking for stable growth environments
Industrial Systems
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Cooling water systems
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Manufacturing wastewater monitoring
Why Choose the PRE673-A Ammonia Nitrogen Sensor?
The Ammonia Nitrogen Sensor PRE673-A offers a combination of precision, reliability, and adaptability that makes it an excellent choice for both new projects and system upgrades. Its automatic compensation, durable structure, replaceable electrodes, and advanced digital communication allow users to achieve long-term stable operation with minimal running cost.
For organizations that need high-accuracy NH4-N monitoring—whether environmental agencies, aquaculture farms, water treatment plants, or industrial facilities—the PRE673-A delivers consistent and dependable performance.
