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1.Salinity sensor application environment description
Salinity sensor is an instrument used to measure salinity in water, which plays an important role in Marine science, hydrology and water resource management.It is used for environmental water quality testing and various high/low ionic strength water sample testing, and can meet the requirements of most industrial/environmental applications for online conductivity, salinity, and TDS measurement.
Signal output: RS485 (MODBUS-RTU).
Internal signal isolation technology, strong interference resistance.
Good reproducibility, thermal stability, low drift, small size, fast response
Easy and simple installation, 3/4NPT pipe thread, convenient for submersible installation or installation in pipes and tanks
Stable performance and long service life
IP68 waterproof standard
24*1.218*1.5*228*22
2. Salinity sensor technical performance and specifications
1. Technical parameters
Measurement principle | Contact method of electrode |
Signal mode | RS485 (MODBUS-RTU) |
Conductivity measurement range | (0~5000μS/cm)(0~10000μS/cm)(0-30mS/cm) |
Electrical conductivity resolution | 1μS/cm0.01mS/cm |
Salinity measurement range | 0-10000ppm0-30ppt |
Salinity resolution | 1ppm0.01ppt |
TDS measurement range | 0-10000ppm0-30ppt |
TDS resolution | 1ppm0.01ppt |
Measurement accuracy | ±1.5%; ±0.1°C |
Response time | About 30 seconds (98% still liquid) |
Case material | ABS |
Temperature compensation | Automatic temperature compensation (M1820Z) |
Cable length | Standard 5 meters |
Supply voltage | 12-24VDC (0.4W@12V) |
Measuring the environment | Temperature 0~50℃ (no freezing), <0.2MPa |
Waterproof grade | IP68 |
Installation method | Immersed installation, NPT3/4 thread |
2.Salinity sensor size chart
3. Salinity sensor installation and electrical connection
1.Salinity sensor installation
Note: The sensor cannot be installed upside down or horizontally, and must be installed at an angle of at least 15 degrees.
2. Electrical installation
The cable is a 4-core shielded wire:
Red - power cord blue/black - ground wire green - 485B yellow - 485A
Depending on the production batch, the color of the cable may be slightly different. Please refer to the cable screen printing for details.
Four. Salinity sensor maintenance and care
1.Use and maintenance
Conventional electrodes require periodic cleaning and calibration, and the maintenance cycle is determined by the customer based on his or her own working conditions. Conventional electrode cleaning method: use a soft brush to remove attachments (be careful to avoid scratching the electrode surface), then clean with distilled water, and then perform calibration operations.