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Sensor Details
TSS Sensor (Total Suspended Solids Sensor) – RS-485 MODBUS, IP68
Digital TSS Sensor for water & wastewater. 90° scattered light + fiber optic, RS-485 MODBUS, auto cleaning brush, 0–5000 mg/L, IP68. Real-time monitoring.
Notes
If you need a reliable way to monitor suspended solids continuously, a TSS Sensor (Total Suspended Solids Sensor) is a practical choice for online water and wastewater applications.
This digital sensor uses the 90° scattered light measurement principle combined with fiber optic technology, delivering stable and repeatable readings while minimizing interference from ambient light and changes in water color.
For long-term operation, a built-in automatic cleaning brush helps keep the optical window clear, reducing contamination and air bubble effects—so you spend less time on maintenance.
What is a TSS Sensor (Total Suspended Solids Sensor)?
A TSS Sensor is an online water quality sensor designed to measure suspended solid concentration in mg/L. It’s commonly used in wastewater treatment and industrial monitoring where you need continuous, real-time trends rather than manual sampling only.
Key benefits
- Stable and repeatable readings using 90° scattered light + fiber optic design
- Minimizes interference from ambient light and water color
- Easy system integration via RS-485 output and MODBUS protocol
- Automatic cleaning brush reduces fouling on the optical window
- Suitable for harsh environments with IP68 waterproof protection
- Designed for continuous online monitoring with low power consumption
Key features / How it works
A TSS Sensor shines light into the water and measures how much light is scattered by particles at a fixed angle (commonly 90°).
- More/larger particles → more scattered light
- The detector converts the scattered light signal into a concentration value in mg/L
To keep measurements reliable over long periods:
- The automatic cleaning brush helps prevent contamination on the optical window
- It also reduces interference from air bubbles that can affect optical readings
Use cases
Typical applications include:
- Wastewater treatment plants (influent/effluent trend monitoring)
- Industrial wastewater monitoring
- Online water quality monitoring in tanks, channels, and pipelines
- Continuous monitoring for process control or reporting
FAQs
What does a TSS Sensor measure?
It measures suspended solids concentration in water or wastewater and outputs a value in mg/L.
Why use 90° scattered light?
Measuring scattered light at a fixed angle (commonly 90°) is a proven method to estimate particle concentration with stable, repeatable results.
Does water color affect the reading?
The sensor design helps minimize interference from ambient light and water color, supporting more stable readings in variable conditions.
How does the automatic cleaning brush help?
It keeps the optical window clean to reduce fouling, and it helps reduce interference from air bubbles—both important for long-term online monitoring.
How do I integrate it with PLC or SCADA?
Use the RS-485 output with MODBUS protocol to connect to PLC, SCADA, or data acquisition systems.
Where can it be installed?
It supports immersion-type installation and can be mounted in tanks, channels, and pipelines using a 3/4″ NPT thread.
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