Online salinity sensor RS485 digital output real-time monitoring probe for salt content in mariculture - Online salinity sensor
Conductivity range: 0-5000uS/m, 0-100000uS/em (graphite four-electrode conductivity
Resolution: 0.001mS/em
Basic error: +2%F.S
Temperature: -10-150°C
Temperature error: ±0.3°C
Automatic or manual temperature compensation range
Temperature compensation: 0～60°C
Communication output: RS485 Modbus RTU
Power supply: 9～28VDC, power: <0.2W
Product Introduction
Online-salinity-sensor
AMT/YD-300
Online salinity sensor
Measurement principle: To avoid electrode polarization, the sensor circuit generates a highly stable sine wave signal applied to the electrodes. The current flowing through the electrodes is proportional to the conductivity of the measured solution. The instrument converts the current into a voltage signal through a high-impedance operational amplifier, then after
After program-controlled signal amplification, phase-sensitive detection, and filtering, a potential signal reflecting conductivity is obtained; the microprocessor alternately samples the temperature signal and conductivity signal through switch switching, and after calculation and temperature compensation, obtains the conductivity of the measured solution at 25°C
value and the temperature value at that time.
Temperature compensation principle: The conductivity of electrolyte solutions is affected by temperature changes and requires temperature compensation. The temperature coefficient of weak aqueous solutions is 2.00%/°C; the higher the concentration, the smaller the temperature coefficient. For lower concentration (1µS·cm－1) solutions
The temperature coefficient does not use 2.00%/°C, but is set by the user, with a range of 0.00～9.99%.
Conductivity range: 0-5000uS/m, 0-100000uS/em (graphite four-electrode conductivity
Resolution: 0.001mS/em
Basic error: +2%F.S
Temperature: -10-150°C
Temperature error: ±0.3°C
Automatic or manual temperature compensation range
Temperature compensation: 0～60°C
Communication output: RS485 Modbus RTU
Power supply: 9～28VDC, power: <0.2W
Main Application Areas
- Mariculture — Real-time monitoring of salinity levels in seawater tanks and ponds to ensure optimal conditions for fish and shellfish.
- Industrial Water Treatment — Continuous salinity measurement in process water and wastewater to control desalination and purification systems.
- Environmental Monitoring — Tracking salinity changes in estuaries, rivers, and coastal waters for ecological research and compliance.
- Agriculture Irrigation — Monitoring salinity in irrigation water to prevent soil salinization and protect crop health.
- Aquarium Systems — Maintaining precise salinity levels in large-scale aquariums and research facilities for marine life support.
Keywords：online salinity sensor, RS485 salinity probe, digital salinity sensor, mariculture salinity monitor, conductivity salinity sensor, real-time salinity monitoring, industrial salinity sensor, water quality salinity probe
