LISST-DEEP
The LISST-Deep instrument obtains in-situ measurements of particle size distribution, optical transmission, and the optical volume scattering function (VSF) at depths up to 3,000 meters. Using a red 670nm diode laser and a custom silicon detector, small-angle scattering from suspended particles is sensed at 32 specific log-spaced angle ranges. This primary measurement is post-processed to obtain sediment size distribution, volume concentration, optical transmission, and VSF. Optionally, SeaBird MicroCat 37-SIP CTD can be integrated for high precision conductivity, temperature, and depth measurement.
Two models are available: anodized aluminum, and Titanium. Each can be ordered as Type-B (1.2-250 microns) or Type-C (2.5 to 500 microns). The instruments are rated to a depth of 3,000m (Aluminum housing).
Manufacturer
Sequoia Scientific, Inc.
2700 Richards Road, Suite 107
Bellevue, WA 98005
USA
+1 (425) 641-0944
+1 (425) 643-0595
Technical specifications
| Depth rating | 3000 m. |
| Size | |
| Weight | |
| Temperature range | |
| Internal solid state drive | 128 MB, capable of holding 1,250,000 size distributions |
| External USB flash drive | |
| Battery life | |
| Power | |
| Sediment size distribution | 1.25 - 250 µm (type B) OR 2.5-500µm (type C) |
| Sediment size concentration range | 0.5-250 mg/l |
| Conductivity |