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| LISST Instruments > LISST-100X |
| LISST-100X |
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| | | The LISST-100X can be rented. The minimum rental period is one
(1) month. Please contact
Sequoia for more information about rental price, terms and
conditions etc. | | | | | | |
LISST-100X
| | The LISST-100X instrument is a
multi-parameter system for in-situ observations of particle size
distribution and volume concentration. It also records the optical transmission, pressure and
temperature. The instrument is fully self-contained with internal battery and
data-logger.
Two size-ranges are available:
1.25-250 microns (Type B) and 2.5-500 microns (Type C). Standard memory
size is 128MB, suitable for storing approximately 1,600,000 size
distributions, with option to expand to 1GB, or 12,800,000 size
distributions. The depth range is 300 m, but a custom version (the LISST-DEEP) is available for deep-ocean environments (2500 m depth rating). | | | | | | | 
LISST-100X optics end
| | At the heart of
the instrument is a collimated laser diode and a specially constructed
annular ring detector (see Application Note L001). Scattering
at 32 angles is the primary information that is recorded by the ring detector. This primary
measurement is mathematically inverted to get the size distribution,
and also scaled to obtain the volume scattering function (VSF). The size distribution is presented as
concentration with units of micro-liters per liter (µl/l) in each of the 32 log-spaced size bins. Date and time, optical
transmission, water depth and temperature are recorded as supporting
measurements. | | | | | | | 
LISST-100X in its shipping case
| | As an option, a modified endcap can constructed, which makes it possible to connect either a Sea-Bird MicroCat CTD, a Campbell OBS 3+ or a Turner Designs Cyclops-7 fluorometer. Designed for extended field application, the LISST-100X is a
self-contained battery-powered instrument that can be deployed on a
tripod, used in a profiling mode, or moored. A range of accessories exists that makes it possible to use the LISST-100X as a laboratory particle sizer. A folded version and a short body version without internal battery also exists. The folded version is designed to fit in a Chelsea shuttle, while the short body version is designed for use with external power.
A large range of accessories has been developed for the LISST-100X, please view our accessories page for a detailed listing. | | | | | | | | | | The LISST-100X and the LISST-Deep were both used intensively after the Deepwater Horizon accident in April 2010 to detect oil
droplets and their size and concentration in the waters of the Gulf of Mexico. The EPA required the use of LISSTs for measurement of oil droplet size and concentration in the dispersed oil.
| | | | | | | | US Government Employee? This product is available for purchase on
Sequoia's GSA contract # GS-07F-0334U. Contact your purchaser to enquire
how! | | 
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Related Links
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| | | | | | Updated 7/192011
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|  | | GOT PLANKTON? |  | | LISST-100X laser particle sizer – not just for sediment or optics (c, vsf). It measures phytoplankton size distribution too! Shown is phytoplankton size distribution from LISST compared to image analysis. Courtesy of Lee Karp-Boss.
| |  | |  |  | Experts Conference on Turbine Abrasion
Le Meridien Hotel, New Delhi, India, 31 May 2013
HydroVision International 2013
Denver, CO, 23-26 July 2013, booth 337
ICOLD 2013
Seattle, WA, 12-15 August, booth 224
Oceanology International CHINA
Shanghai, China, 3-5 September 2013
35th IAHR World Congress
Chengdu, China, 8-13 September 2013
| | | |  | | Sequoia introduces FlowControl! |  | FlowControl is to be used on board research vessels, as part of their normal flow through system. For some measurements of particle properties it is extremely useful to have a measurement of filtered sea water (blanks) just before you do the measurement itself. In flow through systems on research vessels it can be tedious to do the blanks, but an automated system that can do the blanks for you will increase the accuracy of your measurements. This is what FlowControl does – automatic blanks.
Website coming soon! In the meantime: Contact Us! | | |
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