Product OverviewThe INK240 is an online self-cleaning water quality transparency sensor designed for long-term in-situ water environment monitoring. It adopts a reagent-free transmission light method, equipped with customized optical components, a compact 316L stainless steel housing, and a mechanical self-cleaning system. It solves the common problems of traditional optical sensors such as easy biofouling, data drift, and frequent maintenance, enabling stable long-term monitoring with low operation and maintenance costs.
2. Sensing Technology & Self-Cleaning System• Sensing Technology: It uses the transmission light method to calculate water transparency based on light attenuation, with a measuring range of 0–500 cm, featuring good linearity and intuitive data. The customized optical structure improves anti-interference performance, reducing the impact of ambient light and water color to ensure stable measurement under various working conditions.
• Self-Cleaning System: Built-in rotating mechanical cleaning brush regularly wipes the optical window, effectively removing algae, microorganisms, sediment attachments and air bubble interference. With low power consumption (0.1 W in standby mode, 0.6 W in cleaning mode), it requires no additional air supply or chemicals, greatly extending the manual maintenance interval.
3. Key Features & Competitive Advantages• Supports RS-485 with MODBUS protocol, providing strong anti-interference digital signal transmission, and can be directly connected to PLC/SCADA systems for industrial and environmental monitoring networks.
• Compact structure (Φ50 mm × 222.5 mm) adapts to pipelines, tanks, rivers and other installation scenarios, enabling convenient deployment with low installation costs.
• Low data drift and high long-term stability reduce calibration frequency and on-site maintenance workload.
• Supports 1-point / 2-point on-site calibration to adapt to different water environments, with storable
- calibration parameters ensuring data traceability.
4. Technical Specifications
| Parameter |
Specification |
| Model |
INK240 |
| Measuring principle |
Transmission light method |
| Measuring range |
0–500 cm |
| Accuracy |
±5% |
| Resolution |
0.1 cm |
| Operating temperature |
0–50 ℃ |
| Maximum pressure |
3 bar |
| Protection level |
IP68 |
| Communication interface |
RS-485, MODBUS protocol |
| Power supply |
DC 9–24 V, >1 A |
| Power consumption |
0.1 W (non-cleaning) / 0.6 W (cleaning) |
| Dimensions |
Φ50 mm × 222.5 mm |
| Cable length |
Standard 10 m, customizable |
| Calibration method |
1-point / 2-point calibration |
| Housing material |
316L stainless steel |
5. ApplicationsSuitable for ecological monitoring of surface water, rivers, lakes and reservoirs; influent and effluent monitoring in wastewater treatment plants; raw water and process monitoring in water plants; industrial circulating water and cooling water quality monitoring; aquaculture water transparency monitoring and other online water environment monitoring scenarios.