The LISST-AOBS Super-Turbidity sensor is a patent pending, simple, low-cost sensor to measure suspended sediment concentration (SSC).
Super-Turbidity is a patent pending technology developed by Sequoia. It involves pairing a LISST-ABS with a turbidity sensor using a weight factor, which results in a single, combined output from the two sensors. Once paired, the LISST-AOBS retains near-constant calibration for SSC over a wide grain-size range. The LISST-AOBS Super-Turbidity sensor is supplied by Sequoia as an integrated and paired turbidity and acoustic sensor with a variety of cabling and data logger options.
Parameters measured :
Suspended Sediment Concentration (SSC; mg/l)
NTU
Concentration range :
1 – 30,000 mg/l (LISST-ABS) or
0 – 3,000 NTU (Turbidity PlusTM)
Technology :
Combined optical and 8MHz acoustic backscatter technology
Optics per ISO 7027 Turbidity Technique
Mechanical wiper for optical backscatter
SDI-12 output
Sample volume (acoustic): 10mmØ x 15mmL @ 55mm from transducer
Mechanical and electrical :
5.72 cm (2.25″) H x 10.16 cm (4″) W x 33.65 cm (13.25”) L
Weight 0.7 kg (1.54 lb) in air
Transducer: 8 mmØ ceramic
Wavelength: 850 nm
Power supply: 9-15 VDC (12VDC nominal); 200 mA
Depth rating: 100 m
Material: ABS plastic and Delrin