Total Suspended Solids Probe
Our Total Suspended Solid (TSS) Probe operate on the principle of single gap light absorption as a means of detecting the presence of suspended solids. The sensors incorporate self-cleaning optics via air or water jet. The application involves measurement of total suspended solids concentration from Mixed Liquor Suspended Solid (MLSS), Return Activated Sludge (RAS), Waste Activated Sludge (WAS), clarifier effluent and plant effluent.
Application
- Industrial waste water treatment plant
- Other process water application
- Municipal waste water treatment plant
- Surface water application
| Parameter | Specification |
|---|---|
| Measurement Low Range | 0 – 1500 mg/L |
| Measurement High Range | 250 – 30,000 mg/L |
| Accuracy (Low Range Sensor) | ±5% of reading or ±5 mg/L (whichever is higher) |
| Accuracy (High Range Sensor) | ±5% of reading or ±50 mg/L (whichever is higher) |
| Stability | ±2% of reading |
| Repeatability | ±2% of reading |
| Working Temperature Range | 0 to 60 °C |
| Measurement Technique | IR Light Absorption |
| Response Time | 60 seconds to 90% (T-90) |
| Wetted Material | Epoxy, Polyurethane, PVC |
| Sensor Drift | < 1% per year |
| Integral Sensor Cable Length | 10 meters |
| Sensor Cleaning System | Air or water wash option available |
| Maximum Pressure | 100 psi |
| Mounting | Submersible |
| Mounting Thread on Sensor Body | 1½” NPT |
| Probe Warranty | 1 Year |
Why Choose Process Networks?

ISO-Certified Quality
Our ISO 9001:2015 quality management system ensures full traceability across design, installation, calibration and support.

Technical Expertise You Can Reach
When you contact us, you speak directly to an expert — not a call centre.

Trusted Supplier Partnerships
Exclusive access to premium instrumentation from leading global manufacturers in Germany, Japan, the US and across Europe.

Long-Term Support & SLAs
Most customers stay with us for years because we stay with them providing ongoing maintenance, calibration and on-site service.

Proven Field Experience
Thousands of instruments installed and tens of thousands points monitored daily on systems we support.








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