The ammonia nitrogen sensor uses an ion-selective electrode, offering several advantages such as rapid response, low maintenance cost, and real-time online measurement.
Operating without reagents, it is environmentally friendly and non-polluting. It ensures automatic compensation of potassium ions (set value), pH and water temperature.
The sensor can be installed directly in immersion, which makes it more economical, more environmentally friendly, practical and quick to implement compared to traditional ammonia nitrogen analyzers.
It is equipped with a self-cleaning brush that prevents microbial adhesion, thus extending the maintenance cycle and ensuring excellent reliability.
The sensor uses an RS485 output and supports the Modbus protocol, making it easy to integrate into various systems.
Features
Measuring principle Ion selective electrode (ISE) method
Parameters and measuring ranges Ammoniacal nitrogen: 0–100 or 0–1000 mg/L pH: 4–10
Measurement accuracy Ammoniacal nitrogen: ±10% of the measured value or ±0.5 mg/L (whichever is greater) pH: ±0.1
Resolution Ammoniacal nitrogen: 0.1 mg/L pH: 0.01
IP68 protection rating (maximum depth: 10 meters)
Applicable temperature range 0~50℃
Power supply 12 V DC, current < 50 mA
RS485 communication (Modbus RTU protocol)
Installation Immersion / direct installation
Probe cable length 10 meters (customizable)
Sensor dimensions (D × L) Φ64 mm × 271 mm
Cleaning Method Automatic cleaning brush (cleaning interval is configurable)
pH electrode life 6 months
Ammonium ion electrode life 6 months (depending on water quality)
Compensation Automatic pH and temperature compensation, manual potassium ion compensation