TurbiTechw2 LS

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.

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  470 x Ø80 mm
Weight 2.2 kg (inc 10 metres of cable)
Protection Class IP68
Enclosure Material Black Acetal Co-polymer
Cable Entries Integral Cable Gland
Wetted Parts Black Acetal, 316 Stainless Steel, Glass, Polyurethane, Nitrile
Cable Type 4 core, 2 Twisted Pair, 9 mm O/D Polyurethane Coated
Cable Length 10 metres standard, 100 metres maximum
Service Requirement Automatic Self Cleaning
Seal Service every 3500 cleans (application dependent)

 

Environmental Data 

Operating Temperature 0 to 50ºC

 

Interface to Monitor 

Power Supply 12 VDC from Monitor
Sensor Output ModTechw², RS485
Range 0-100 FTU
Accuracy ±5% of measured value or 0.5 NTU whichever is greater
Limit of Detection 0.5 FTU
Minimum Operating Range 0 - 10 FTU

 

Range 0-500 FTU
Accuracy ±5% of measured value or ±2.5 FTU whichever is greater
Limit of Detection 2.5 FTU
Minimum Operating Range 0 - 50 FTU

 

Range 0-1,000 FTU
Accuracy ±5% of measured value or ±5 FTU whichever is greater
Limit of Detection 5 FTU
Minimum Operating Range 0 - 100 FTU

 

Measurement Principle 90° Light Scatter
ISO 7027 Compliant
Wavelength 860 nm Infrared
Pressure Rating (Depth) 1Bar or 14.5 psi
Flow Rate Not affected by flowrate, avoid deadspots and extreme turbulence
Units
User Selectable mg/l, g/l, ppm, %SS, FTU, NTU