RTM Online TSS Sensor for Total Suspended Solids Measurement
RTM Online TSS Sensor is used for continuous total suspended solids measurement in wastewater, effluent, ETP, STP, process water and industrial water monitoring. It uses optical measurement technology with RS-485 MODBUS output, IP68 protection and optional automatic cleaning brush for reliable long-term online operation.
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A. Product Overview
The RTM Online TSS Sensor is a digital total suspended solids sensor designed for continuous online monitoring of suspended particles in liquid. It is suitable for industrial wastewater, sewage treatment, effluent treatment, process water and environmental water quality monitoring.
The sensor is available in two variants:
RTM-ANL-TSS-SENS-450
RTM-ANL-TSS-SENS-451
The main difference is the self-cleaning system option. One model is available without self-cleaning and the other model is available with an automatic cleaning brush.
It can be used with the RTM-ANL-TSS-CONT-22 controller, which provides LCD display, relay output and 4 to 20 mA analog output. The sensor supports RS-485 communication with MODBUS protocol, making it suitable for integration with PLC, SCADA, online monitoring systems and industrial automation panels.
Key specifications include 12VDC power supply, 0.5 to 5000 mg/l measuring range, 0.1 mg/l resolution, 4 second response time, accuracy less than 3 percent, IP68 protection level, optical fiber window, 0 to 50 degree Celsius operating temperature and 5 meter cable length.
B. Working Principle
The RTM Online TSS Sensor works on the 135 degree backlight optical measurement principle. The sensor uses an 880 nm infrared LED light source to detect the concentration of suspended solids in water or process liquid.
When light passes through the sample liquid, suspended particles scatter and absorb the light. The sensor measures this optical response and converts it into a total suspended solids value in mg/l. The built-in adaptive software algorithm helps reduce interference from external light and improves measurement stability.
The optical fiber structure improves repeatability and stability because the measurement is less affected by ambient light conditions. The sensor also compensates for water color, helping to reduce color-related interference during measurement.
In the self-cleaning version, the automatic cleaning brush helps remove contamination and air bubbles from the optical window. This reduces fouling, extends the maintenance cycle and supports stable long-term online operation.
C. Why It Is Used
RTM Online TSS Sensor is used to continuously monitor total suspended solids in water and wastewater processes. TSS measurement helps users understand how much solid material is present in liquid, which is important for treatment efficiency, process control and environmental compliance.
It is commonly used to monitor:
Effluent quality
Wastewater treatment performance
ETP and STP process control
Sludge concentration
Industrial discharge water
Process water contamination
Clarifier and settling tank performance
Online environmental water quality
Suspended particles in liquid
The sensor helps plant operators detect process changes, improve treatment performance, reduce manual testing dependency and maintain better control over water quality.
D. Suitable Buyers
This product is suitable for:
ETP plant manufacturers
STP plant manufacturers
Wastewater treatment plants
Industrial water treatment companies
Environmental monitoring companies
Chemical industries
Pharmaceutical industries
Food and beverage plants
Paper and pulp industries
Textile processing units
Electroplating industries
System integrators
PLC and SCADA panel builders
Instrumentation engineers
Plant maintenance teams
Water quality monitoring consultants
OEM machine manufacturers
FAQ
1. What is the RTM Online TSS Sensor used for?
RTM Online TSS Sensor is used for continuous measurement of total suspended solids in wastewater, effluent, process water, ETP, STP and industrial water applications.
2. What is the measuring range of this TSS sensor?
The measuring range is 0.5 to 5000 mg/l.
3. What is the resolution of the sensor?
The resolution is 0.1 mg/l.
4. What is the response time of the sensor?
The response time is 4 seconds.
5. What is the accuracy of the RTM Online TSS Sensor?
The accuracy is less than 3 percent.
6. What measurement principle does this sensor use?
The sensor uses a 135 degree backlight optical principle with an 880 nm infrared LED light source.
7. Does this sensor support MODBUS communication?
Yes, it is a digital sensor with RS-485 output and MODBUS support.
8. Is this sensor suitable for submerged installation?
Yes, the sensor has an IP68 protection level, which makes it suitable for submerged online measurement applications.
9. Does the sensor have a self-cleaning option?
Yes, one variant is available with an automatic cleaning brush. The brush helps prevent contamination and remove air bubbles from the optical surface.
10. Why is an automatic cleaning brush useful?
The cleaning brush reduces fouling on the optical window, removes bubbles and helps maintain stable measurement during long-term online use.
11. Can this sensor be used in ETP and STP plants?
Yes, it is suitable for ETP, STP, wastewater treatment, effluent monitoring and sludge-related water quality applications.
12. Can it be connected to PLC or SCADA?
Yes, the RS-485 MODBUS output allows integration with PLC, SCADA and industrial automation systems.
13. What controller can be used with this sensor?
The RTM-ANL-TSS-CONT-22 controller can be used. It supports LCD display, 2 relay outputs and 4 to 20 mA analog output.
14. What is the controller power supply?
The controller works on 90 to 265 VAC power supply.
15. What details should be shared before selecting this product?
Share the application, liquid type, expected TSS range, installation type, cable length requirement, controller requirement, communication requirement and whether self-cleaning is required.