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 (hxwxd) | Ø80mm, 470 mm long |
| Weight | 2.2 kg |
| Protection Class | IP68 |
| Enclosure Material | Black Acetal Co-Polymer, 316 Stainless Steel, Glass |
| Seal Material | Polyurethane, Nitrile, with option of Viton |
| Cable Entry | Integral Cable Gland |
| Cable Length | 10 metres standard, 100 metres maximum |
| Interface to Monitor | |
| Power Supply | 12 VDC from Monitor |
| Sensor Output | ModTechw², RS485 |
| Environmental Data | |
| Operating/Storage Temperature | 0 to 50ºC |
| Location | Indoor/Outdoor |
| Pressure Rating | 1 Bar or 14.5 psi |
| Maintenance | |
| Service | Seal Service every 3500 cleans (application dependent) |
| Calibration | The sensor is inherently stable, calibration should be carried out to suit the application. Our recommendation is every 6 months. |
| Measurement Characteristics | |
|---|---|
| Principal of Operation | 90° Light Scatter ISO 7027 Compliant |
| Wavelength | 860 nm Infrared |
| Accuracy | +/-5% of reading or 1NTU whichever is greater |
| Resolution | Dependent on range setting, typically +/-2% of reading |
| Display Resolution | see 7300w² Monitor |
| Response Time | 0.5 seconds damping provided by monitor |
| Flowrate | Not affected by flowrate, avoid deadspots and extreme turbulence |
| Units | User 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 Number | Description |
|---|---|
| 223510 | TurbiTechw² LS Sensor (Range: 0-500 FTU, Cable Length: 10 metres, Nitrile Seals) |
| 223875 | TurbiTechw² LS Sensor (Range: 0-500 FTU, Cable Length: 20 metres, Nitrile Seals) |
| 223876 | TurbiTechw² LS Sensor (Range: 0-500 FTU, Cable Length: 10 metres, Viton Seals) |
| 223877 | TurbiTechw² LS Sensor (Range: 0-500 FTU, Cable Length: 20 metres, Viton Seals) |
| 226447 | TurbiTechw² LS Sensor (Range: 0-100 FTU, Cable Length: 10 metres, Nitrile Seals) |
| 225455 | TurbiTechw² LS Sensor (Range: 0-1000 FTU, Cable Length: 10 metres, Nitrile Seals) |
| 223880 | TurbiTechw² LS Sensor (Range: 0-1000 FTU, Cable Length: 20 metres, Nitrile Seals) |
| 223879 | TurbiTechw² LS Sensor (Range: 0-1000 FTU, Cable Length: 10 metres, Viton Seals) |
| 223881 | TurbiTechw² LS Sensor (Range: 0-1000 FTU, Cable Length: 20 metres, Viton Seals) |
| Mounting Shafts | |
| 152703 | FlexTech Mounting Shaft (TurbiTechw² LA/HR/LS, 1.0 metres) |
| 152701 | FlexTech Mounting Shaft (TurbiTechw² LA/HR/LS, 1.0 metres) |
| 152705 | FlexTech Mounting Shaft (TurbiTechw² LA/HR/LS, 1.0 metres) |
| Mounting Brackets | |
| 223980 | FlexTech Sensor Bracket (Handrail Ø 43 to 60.3 mm) |
| 224567 | FlexTech Sensor Bracket Extension Assembly (500 mm Long, Handrail Ø 43 to 60.3 mm) |
| Seal Service Pack | |
| 156260 | Seal Service Pack - TurbiTechw² LA/LS, Nitrile H RIngs |
| 156261 | Seal Service Pack - TurbiTechw² LA/LS, Viton H RIngs |
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