The KSA-CDW-2 online sensor is an example of an industrial salinity sensor that can accurately measure salt in several bodies of water. Inductive detection and the Pt1000’s ability to automatically change the temperature give accurate findings. With IP68 protection, it’s perfect for threading 3/4NPT pipes. It works with water from the ocean, saltwater, industrial water, and more. Marine aquaculture, chemical water treatment, municipal water supply, marine environment monitoring, and other fields use online salinity monitoring.
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Parameters
| Item | Specification |
|---|---|
| Measuring Range | 0~70.0PSU |
| Resolution | 0.1PSU |
| Measuring Accuracy | ±1.5%F.S., ±0.5℃ |
| Operating Temperature | 0~65℃ |
| Operating Pressure | ＜0.6MPa |
| Power Supply | 12~24VDC |
| Signal Output | RS-485(Modbus/RTU) |
| Temperature Compensation | Automatic temperature compensation(Pt1000) |
| Calibration Method | Two-point calibration (Zero + Slope) |
| Mounting Method | Immersion installation, 3/4NPT pipe thread |
| Cable Length | 5m (customizable) |
| Power Consumption | 0.2W@12V |
| Housing Material | ABS(default)/POM |
| Protection Grade | IP68 |
| Communication Parameters | 9600 baud rate, N, 8, 1 (customizable) |
Why choose KSA-CDW-2 turbidity digital sensor?
- Inductive detection, maintenance free design, mild scaling/contamination does not affect measurement
- Pt1000 automatic temperature compensation, 0-65 ℃ wide temperature operation, more accurate measurement
- IP68 waterproof, resistant to<0.6MPa pressure, suitable for harsh working conditions of seawater/high salt water
- RS-485 Modbus/RTU output, seamlessly integrated with industrial automation systems
- Easy two-point calibration operation, 72 hour aging test, strict quality control, low failure rate
Featured Applications
- Marine aquaculture: monitoring the salinity of aquaculture water to ensure a stable environment for aquatic growth;
- Marine environment monitoring: real-time online monitoring of salinity at river estuaries and nearshore waters;
- Chemical water treatment: monitoring of high salinity water and industrial wastewater salinity to guide process control;
- Municipal water supply/sewage treatment: monitor the salinity of raw water/effluent and control water quality indicators;
- Food processing/pharmaceuticals: Accurate detection of water salinity in the production process meets production standards.
Installation and wiring
Installation method (multi scenario adaptation)
Supports six installation methods: top insertion, flow type, top flange type, side wall installation, sinking type, and pipeline installation. During installation, the front end of the sensor should be at least 2cm away from the bottom/side wall of the container to ensure interference free measurement.
Electrical wiring
Standard 4-core twisted pair shielded wire, with clear line sequence definition. Before wiring, check the sequence to avoid faults; Waterproof treatment should be applied to the wiring area to adapt to underwater/humid environments:
- Red: Power cord (12~24VDC+)
- Black: Ground (GND)
- Blue: 485A
- White: 485B
Maintenance and Calibration
Routine maintenance
- Inductive electrodes are almost maintenance free, and mild scaling/contamination of the casing does not affect operation;
- When cleaning, use a soft bristled brush/sandpaper to remove attachments, rinse with distilled water, and calibrate;
- Slight scratches on the surface of the electrode have no impact and should be avoided from penetrating the electrode casing.
Calibration operation
- Zero point calibration
- Rinse the sensor with distilled water and dry it. After powering on, place it vertically in the air and let it stand for 3 minutes until the value stabilizes. Then, use Modbus command to write 0 to complete the calibration.
- Slope calibration
- Place the sensor vertically into a 20% full-scale to full-scale salinity standard solution, ensuring that the front end is at least 2cm away from the container wall. Write the value of the standard solution multiplied by 10 to complete the slope calibration.
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KSA-CDW-2 monitors water salinity accurately, reliably, and stress-free. Simple to build, economical to maintain, and industrial-friendly. It protects water quality monitoring everywhere, from ocean fish farming to industrial water purification! We promise to provide high-quality items and technical support at all times. We also have plenty of inventory and can change your order. Salinity monitoring is accurate and efficient with KSA-CDW-2. Ask for help before buying in bulk.
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