Suspended Solids Sensor from Thermo Scientific

  • TSS Measurement Range Suspended solids measurement range from 0 to 20,000 mg/L (diatomaceous earth)
  • Suspended Solids Sensor Head Sensor head is precalibrated for TSS and temperature
  • Universal DataStick Provides conversion of sensor signals and interactive communication for measurement, calibration, configuration and diagnostics with industrial computer or an AV38 local display
Product Options


The Suspended Solids Sensor from Thermo Scientific has a rugged construction, fouling correction optics, exceptional chemical resistance, and is designed for use in the most demanding conditions. Versatile mounting options include a hand rail mounting assembly, 1inch Immersion mounting with a junction box, a ball float assembly, 1.5 inch ball valve and 1.5 inch union mounting.

The Total Suspended Solids (TSS) DataStick System provides a modular, "plug-and-play" solution to water quality monitoring programmes. A wide range of sensor heads and connection adapters are available for the DataStick and all can be exchanged while the system is live, saving both time and money. Connection adapter options include Modbus? RTU, DeviceNet, Profibus, CANopen and USB. The unit can be connected to a computer or to the AquaSensors AV38 local display, providing interactive measurement, calibration, configuration and diagnostics. An integral temperature sensor measures temperature independently.

The Total Suspended Solids (TSS) DataStick has been successfully used in municipal and industrial waste water situations, the dairy and chemical process industries and even in such difficult areas as the pulp and paper and mining industries.

For a complete solution to your water quality monitoring needs call us on 01527 882 060 and discuss water quality monitoring solutions with one of our water quality experts. Or you can fill out one of our enquiry forms and we will call you back.

Manufactured by: Thermo Scientific
Model: Suspended Solids Sensor from Thermo Scientific

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Municipal/industrial wastewater
- Primary & secondary clarifiers
- Return activated sludge
- Wastewater activated sludge
- Mixed liquor
- Aeration basins
- Final effluent
Municipal water
Pulp and paper
Dairy industry
Mining industry
Chemical process


Measurement System Performance†
Range 0 to 20,000 mg/L (diatomaceous earth)
Resolution 1 mg/L
Step Response Time 90% in 15 seconds
Operational Environment
Temperature Range -5 °C to 50 °C
Maximum Pressure 150 psig @ 50 °C
Maximum Flow Rate 10 ft/second
Power Requirements‡
Voltage Range 10 to 30 VDC
Maximum Power 200 mW
Typical Power 120 mW
Windows Quartz
Optical Topology 1 cm path lengths for measurement and reference. Detectors at 90 degrees and 180 degrees to source
O-rings Viton®(other materials available)
Sensor Head Material Polycarbonate
Weight 1.2 lbs
Units of Measure
Suspended Solids mg/L, ppm, %
Temperature Units °C, °F
Sample 1 point
Zero 1 point
Temperature 1 point
Measurement Modes
Measurement Units Detected at 90 degrees and
180 degrees
Temperature Automatic from -5 °C to 50 °C
Other Configuration Options
Sensor Filter 0 to 100 seconds
Temperature Filter 0 to 100 seconds
Approvals and Ratings
Immunity & Emissions CE Certified 89/336/EEC: CISPER 11, EN61000 (-4-2,-4-3,-4-4,-4-6, 4-8)
Safety cULus Listed; 367G E303570
Hazardous Locations Haz Loc Class 1, Division 2,
Groups A, B, C, D. Max Ambient 50 °C
† Note: Typical at 25 °C Performance unaffected by cable length
‡ Note: Class II DC power supply required
†† Note: Turbidity and Temperature are precalibrated at the factory


Related products


TSS are particles that are larger than 2 microns found in the water column. Anything smaller than this is called a dissolved solid.