16 products found

Products

  • LISST Instruments

  • Model LISST-Portable|XR - Portable Laser Diffraction Particle Size Analyzer

    Model LISST-Portable|XR - Portable Laser Diffraction Particle Size Analyzer

    The LISST-Portable-XR is the world’s first and only battery powered portable particle size analyzer. It can be used in the field, in the laboratory or on the factory floor. The LISST-Portable|XR analyzes the sample in a wet state to obtain the particle size distribution and the particle volume concentration. The LISST-Portable|XR uses the same laser light scattering method (laser diffraction) as popular laboratory particle size analyzers.

  • Model LISST-Holo2 - Holographic Camera for Flocs and Plankton

    Model LISST-Holo2 - Holographic Camera for Flocs and Plankton

    The LISST-Holo2 stores holograms for study of flocs, plankton, and other particles in water. It is an advanced successor of the original LISST-Holo. This new version is the world’s fastest, capturing holograms at 20Hz, [vs.0.2Hz for the original LISST-Holo]. New – the same original housing now includes an 8-hr battery and 250GB of memory. Another powerful new feature ranks thousands of your holograms based on richness of imagery...

  • Model LISST-SL Series - Multi-Parameter River Profiling Instrument

    Model LISST-SL Series - Multi-Parameter River Profiling Instrument

    The LISST-SL (for StreamLine) is a laser diffraction system for measuring sediment properties in freshwater rivers and streams. It is not designed for use in brackish or saltwater environments. The streamlined body is a minimum drag shape. Twin fins below the body orient the LISST-SL facing upstream before insertion. A pitot static tube on top of the body measures river velocity. The system employs active control of the intake pump that matches river...

  • Model LISST-Deep Series - Deep Ocean Laser Diffraction Particle Size Analyzer

    Model LISST-Deep Series - Deep Ocean Laser Diffraction Particle Size Analyzer

    The LISST-Deep instrument obtains in-situ measurements of particle size distribution, optical transmission, and the optical volume scattering function(VSF) at depths down to 3,000 meters. The LISST-Deep extends operating depth range beyond the LISST-100X or LISST-200X instruments allowing measurements of particle size to be made with at 1 hz with minimal disturbance to the particles.

  • LISST-StreamSide - For Monitoring Applications

    LISST-StreamSide - For Monitoring Applications

    The LISST-StreamSide is developed specifically for monitoring applications, for example sediment monitoring in shallow streams and rivers or for storm runoff. It can also be used as an in-line instrument system, for example in a flow-through system on a research vessel. The first units shipped in May 2008.

  • LISST-STX - Submersible Field Instrument

    LISST-STX - Submersible Field Instrument

    The LISST-STX is a submersible field instrument developed for in-situ observation of the size-dependent settling velocity distribution of suspended particles. It incorporates a mechanized Settling Column. The LISST-STX is designed to carry out multiple settling experiments while submerged. A motorized mechanism operates the doors that control exchange of water between the settling column and the ambient environment. This permits repeated settling...

  • LISST-Hydro - Particle Size Analyzer for Hydro Power Applications

    LISST-Hydro - Particle Size Analyzer for Hydro Power Applications

    The LISST-Hydro instrument system is designed to supplement Sequoia’s LISST-Infinite instrument in hydro power monitoring applications or work as a standalone instrument for hydro power plants where the sediment concentrations do not exceed 700-8,000 mg/l.

  • LISST-Infinite - Instrument

    LISST-Infinite - Instrument

    The LISST-Infinite instrument is designed for use in hydro-power plants to monitor sediment concentration and size distribution for turbine protection. The instrument is installed near intakes, or near draft tubes. The turbid water pressure is reduced to 5 PSI or less and then piped or pumped to the LISST-Infinite. A clean water source is provided for automated dilution. The automated dilution enables the LISST-Infinite to measure silt concentrations...

  • LISST-VSF - Submersible Instrument for Measuring The Volume Scattering Function

    LISST-VSF - Submersible Instrument for Measuring The Volume Scattering Function

    The LISST-VSF from Sequoia is the world’s first commercially available submersible instrument for measuring the volume scattering function (VSF) of water in situ with some polarization discrimination capability. The LISST-VSF covers the angular range from 0.094 to 150 degrees. The data are with 1-degree resolution in angle, so that the instrument is capable of seeing enhanced bubble scattering. Integration of the VSF provides an excellent...

  • Optical Volume Scattering Function (VSF) Sensors

    Optical Volume Scattering Function (VSF) Sensors

    The optical Volume Scattering Function(VSF) is an ‘inherent optical property’ of water that is used by optical oceanographers to predict light propagation, image degradation, remote sensed ocean color, biological environment etc. in water.

  • LISST-SL - Laser Diffraction System

    LISST-SL - Laser Diffraction System

    The LISST-SL (for StreamLine) is a laser diffraction system for measuring sediment properties in freshwater rivers and streams. It is not designed for use in brackish or saltwater environments. The streamlined body is a minimum drag shape. Twin fins below the body orient the LISST-SL facing upstream before insertion. A pitot static tube on top of the body measures river velocity. The system employs active control of the intake pump that matches river...

  • Model LISST-25X Series - Advanced Turbidity Sensor

    Model LISST-25X Series - Advanced Turbidity Sensor

    LISST-25X marks a generational advance in the measurement of suspended sediment concentrations and size. Unlike all prior sediment or turbidity sensors, optical or acoustic, the LISST-25X maintains its calibration over a 200:1 range of particle sizes. This is the only sensor capable of holding calibration for sediment concentration regardless of particle color or size within this broad a range. Depending on grain size, the LISST-25X is suitable for...

  • FlowControl Instruments

  • FlowControl-Lab 3-way Valve System

    FlowControl-Lab 3-way Valve System

    FlowControl-Lab is a computer-controlled 3-way valve system for use in flow-through applications on board research vessels or for dock-side sampling. The system periodically diverts water from the vessel’s flow-through system through a cartridge filter. The periodically filtered measurements allow for high-accuracy differential measurements of particle properties, for example absorption. FlowControl-Lab is NOT submersible. A submersible...