Partech

TurbiTechw2 LA

WaterWater Quality Measurement

The TurbiTechw² LA Sensor has been designed for use in aeration systems monitoring suspended solids also known as mixed liquor suspended solids or activated sludge where solids are typically in the range of 1,500 to 3,500 mg/l. The sensor can also measure Returned Activated Sludge (RAS), Surplus Activated Sludge (SAS) and suspended solids or turbidity.

Quantity

Overview

The large optical surface and sample volume combine to ensure that the sensor is providing information that is reliable and representative of the solids present in the process. Deposits of fats and grease on the sensing area do not prevent the sensor from measuring unlike sensors with small optical surfaces. In addition, the sensor incorporates a self cleaning mechanism that ensures 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.

General Specification

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

Measurement Specification

Range	0 - 20,000 mg/l
Accuracy	±5% of reading or 100 mg/l whichever is greater
Limit of Detection	100 mg/l
Minimum Operating Range	0 - 2,000 mg/l
Measurement Principle	Light Attenuation
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, NTU