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TurbiTechw² LS Suspended Solids and Turbidity Sensor

Self Cleaning Sensor for Suspended Solids and Turbidity Monitoring

The TurbiTechw² LS Sensor is designed to monitor the levels of suspended solids or turbidity typically found in final effluent from municipal and industrial wastewater treatment plants. It is also great at monitoring solids in the intake to both effluent and drinking water treatment processes.

Monitoring of these key parameters requires sensors that are reliable and accurate, the TurbiTechw² LS meets this requirement perfectly. The large optical surfaces and sample volume ensure that the information provided by the sensor is both representative of the process and tolerant of fouling. In addition, the sensor incorporates a self cleaning mechanism that ensures that the optical surfaces are kept clean at all times, the cleaning system is designed to avoid problems with ragging and does not smear the optical system.

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+44 (0)1726 879800

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  • Overview
  • General Specification
  • Measurement Specification
  • Ordering Information & Spare Parts

The TurbiTechw² LS Sensor employs infrared light at 860 nm using the 90º Light Scatter principle in accordance with ISO7027 (2000). The cleaning process is automatically initiated by the 7300w² Monitor at a user determined frequency. The cleaning process takes only 90 seconds, which means that the sensor is available for 99.5% of the time with a 6 hourly cleaning cycle.

Physical
Dimensions (hxwxd)470 x Ø80 mm
Weight2.2 kg (inc 10 metres of cable)
Protection ClassIP68
Enclosure MaterialBlack Acetal Co-Polymer
Cable EntriesIntegral Cable Gland
Cable Length10 metres standard, 100 metres maximum
Service RequirementSeal Service every 3500 cleans (application dependent)
Environmental Data
Operating Temperature0 to +50ºC
Interface to Monitor
Power Supply12 VDC from Monitor
Sensor OutputModTechw², RS485
Measurement Characteristics
Range0-100, 0-500, 0-1,000* NTU
Range must be specified when ordering
*not suitable for measuring <10NTU
Accuracy±5% of reading or 1NTU whichever is greater
Measurement Principle90° Light Scatter
ISO 7027 Compliant
Wavelength860 nm Infrared
Pressure Rating1Bar or 14.5 psi
FlowrateNot affected by flowrate, avoid deadspots and extreme turbulence
UnitsUser Selectable mg/l, g/l, ppm, %SS, FTU, NTU
The actual measuring range will depend on the nature of the sample being monitored, for processes normally operating at 10,000 mg/l or more should consider use of the HR version of this sensor.
Processes that use carbon will provide higher than expected readings and the HR version of the sensor should be used.
Part NumberDescription
223510TurbiTechw² LS Sensor (Range: 0-500 FTU, Cable Length: 10 metres, Nitrile Seals)
223875TurbiTechw² LS Sensor (Range: 0-500 FTU, Cable Length: 20 metres, Nitrile Seals)
223876TurbiTechw² LS Sensor (Range: 0-500 FTU, Cable Length: 10 metres, Viton Seals)
223877TurbiTechw² LS Sensor (Range: 0-500 FTU, Cable Length: 20 metres, Viton Seals)
226447TurbiTechw² LS Sensor (Range: 0-100 FTU, Cable Length: 10 metres, Nitrile Seals)
225455TurbiTechw² LS Sensor (Range: 0-1000 FTU, Cable Length: 10 metres, Nitrile Seals)
223880TurbiTechw² LS Sensor (Range: 0-1000 FTU, Cable Length: 20 metres, Nitrile Seals)
223879TurbiTechw² LS Sensor (Range: 0-1000 FTU, Cable Length: 10 metres, Viton Seals)
223881TurbiTechw² LS Sensor (Range: 0-1000 FTU, Cable Length: 20 metres, Viton Seals)
Mounting Shafts
152703FlexTech Mounting Shaft (TurbiTechw² LA/HR/LS, 1.0 metres)
152701FlexTech Mounting Shaft (TurbiTechw² LA/HR/LS, 1.0 metres)
152705FlexTech Mounting Shaft (TurbiTechw² LA/HR/LS, 1.0 metres)
Mounting Brackets
223980FlexTech Sensor Bracket (Handrail Ø 43 to 60.3 mm)
224567FlexTech Sensor Bracket Extension Assembly (500 mm Long, Handrail Ø 43 to 60.3 mm)
Seal Service Pack
156260Seal Service Pack - TurbiTechw² LA/LS, Nitrile H RIngs
156261Seal Service Pack - TurbiTechw² LA/LS, Viton H RIngs

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