Digital Suspended Solids (Sludge concentration) Sensor with Automatic Cleaning

• Product Name:  Digital Suspended Solidsr
• Product model: CS7863D
• Product brand：FLUIDINGS
• Power supply voltage: 9-36VDC

The Digital Suspended Solids / Sludge Concentration Sensor measures sludge levels using a combined infrared absorption and light-scattering method. Additionally, it complies with ISO 7027 standards, ensuring accurate results even when water shows strong color.

Moreover, the sensor includes a built-in auto-cleaning scraper that prevents fouling and maintains lens clarity for reliable performance. The device also features self-diagnostics and simple calibration, making field setup easy.

Made from 316L stainless steel, the sensor resists corrosion, while a titanium plating option protects it in seawater or highly corrosive environments. Also, its IP68 waterproof rating allows full immersion for online applications.

Further, the sensor transmits real-time data (TSS, sludge concentration, temperature) via RS‑485 with Modbus-RTU compatibility. It supports software-based configuration—such as calibration, baud rate adjustments, and settings—without needing a separate meter.

Features:

Suspended Solids (Sludge concentration) monitoring of water from waterworks, water quality monitoring of municipal pipeline network; industrial process water quality monitoring, circulating cooling water, activated carbon filter effluent, membrane filtration effluent, etc.

• The internal upgrade of the sensor can effectively prevent the internal circuit from dampness and dust accumulation, and avoid damage to the internal circuit.
• The transmitted light adopts stable invisible near-monochromatic infrared light source, which avoids the interference of chroma in liquid and external visible light to sensor measurement.And built-in luminosity compensation, improve the measurement accuracy.
• The use of quartz glass lens with high light transmittance in the optical path makes the transmission and reception of infrared light waves more stable.
• Wide range, stable measurement, high precision, good reproducibility.
• Communication functions: RS-485 communication interface (Modbus-RTU protocol compatible), the fastest communication interval is 50ms. No instrument, can be directly connected to computers, PLC and other devices with RS485 signal interface for data acquisition.It is convenient for users to integrate the sensor into the upper computer system and the IoT system and other industrial control environment.
• Without meter, the sensor can be set online through software, from the machine address and baud rate, online calibration, restore factory, modify the range, proportional coefficient and incremental compensation settings.