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  • LISST-25X | Sequoia Scientific
    any size of particle in the 2 5 to 500 micron range the instrument reports the correct volume concentration A different shape is found to yield area concentration The ratio of volume to area is called the Sauter Mean Diameter The instrument employs 2 pairs of shaped detectors One pair measures particles in the 2 5 to 63 micron range the other in the 63 500 micron range Small angle forward scattering laser diffraction technology also called laser diffraction Self contained with internal batteries and built in programmable datalogger holds up to 27 000 samples Solid state red diode laser 670 nm RS232C serial data interface Programmable data collection Integrated BioBlock connection Internal battery 4 x 9V alkaline or lithium External power option 6 12VDC max 250mA Specifications Specifications subject to change without notice Parameters Measured Sauter mean diameter µm what is the Sauter mean diameter Total volume concentration µl l 1 Sauter mean diameter in 63 500 µm sub range µm Total volume concentration in 63 500 µm sub range µl l 1 Optical transmission Depth m Date and Time Size ranges 2 5 500 µm for the full range 63 500 µm for the sub range Concentration ranges Concentration range 2 1 600 mg l NOTE Actual range is dependent on the grain size and size distribution of the suspended particles See table below for details and examples of concentration ranges based on measurements using ISO particle standards and easily obtained reference materials SMD Sauter Mean Diameter Resolution 1 mg l Material SSC mg l 98 optical transmission SSC mg l 30 optical transmission D10 µm D50 µm D90 µm SMD µm ISO Fine ISO 12103 1 A2 2 140 1 5 7 41 3 ISO Coarse ISO 12103 1 A4 10 300 4 38 99 10 Whitehouse 20 30 µm glass beads 20 900 19 24 34 24 Sieved sand 75 125 µm 25 1 600 85 122 175 112 Accuracy and Resolution Accuracy Resolution Concentration 2 for fixed shape factor 0 025 of full scale Size 20 1 µm Transmission 0 1 0 1 Optical Path Lenghts and Maximum Concentration Path Length A4 Test Dust 200 µm sand 2 5 cm standard 500 mg l 1 25 000 mg l 1 1 0 cm optional 1250 mg l 1 67 500 mg l 1 0 5 cm optional 2500 mg l 1 125 000 mg l 1 Weight and Dimensions Dimensions 10 0 cm diameter x 61 7 cm long 3 95 x 24 3 Weight 4 5 kg 10 lbs in air 1 4 kg 3 lbs in water 300 m depth rating Serial interface RS232C 9600 baud Internal battery pack 4 9V batteries alkaline or lithium External power input optional 6 12VDC max 250 mA Power drain 147 mA 3 5 mA 140 µA measuring quiescent sleeping Software Downloads LISST 25X Specifications pdf User s Manual pdf Version 1 40 Software and Manual 11 11 2011 zip LISST 25X battery life calculator in Excel

    Original URL path: http://www.sequoiasci.com/product/lisst-25x/ (2016-02-13)
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  • FlowControl-Lab | Sequoia Scientific
    FAQ Features Periodically filtered measurements allow for high accuracy differential measurements of particle properties Electrically actuated three way ball valve allows flow to be bypassed through submicron filter cartridge before instrumentation Includes valve power supply controller one paddlewheel flow sensor cables and Windows software Valve position indicator Flow sensor data indicates proper system functioning filter fouling and are used for post processing and QC Removable flow sensor windows for flow visualization cleaning and servicing Software allows for valve scheduling manual setting of valve position and logs flow rates and system state to hourly ASCII files Rugged construction for use in laboratory ship board or dock side applications Specifications Valve and controller PVC body with EPDM O rings PTFE seats and 1 2 NPT or barb fittings standard Actuator and valve unit connections IP68 and NEMA 6P rated Flow sensor Flow rate resolution approx 0 13 liter minute 1 Hz Mechanical and electrical Controller power supply 120 240 VAC 50 60Hz Interface Plug and play USB between controller and Windows PC W7 Vista and XP SP3 Dimensions approx Controller 22 9 cm 9 H 20 3 cm 8 W 11 4 cm 4 5 D Valve 20 3 cm 8 H 15 2 cm 6 Ø Flow sensor 5 6 cm 2 2 H 10 4 cm 4 1 L 5 3 cm 2 1 D Weight approx Controller 2 6 kg 5 8 lbs Valve 2 6 kg 5 7 lbs Flow sensor 0 25 kg 0 55 lbs Cable lengths approx Flow sensors Controller to PC to valve 5 m 1 5 m 5 m Software Downloads Accessories FAQ How to Buy Call to speak with our sales team about purchasing or leasing options 866 212 2226 International 1 425 641 0944 or Request Quote Related Articles Related Products

    Original URL path: http://www.sequoiasci.com/product/flowcontrol-lab/ (2016-02-13)
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  • FlowControl-Sub | Sequoia Scientific
    measured The profiles of filtered and unfiltered measurements allow for high accuracy differential measurements of particle properties for example absorption in the entire profile Features Specifications Gallery Software Downloads Accessories FAQ Features Pinch valve design for full port flow and easy replacement of fouled tubing Rapid transition of valve state 1 s Auxiliary inputs for analog sensors and Hall Effect volumetric flow sensors paddlewheel or turbine under development Flexible configuration of valve operation for scheduled or profiling operation as well as start and stop conditions Continuous output and internal logging of valve state and depth Specifications Mechanical and Environmental Dimensions 15 625 39 7 cm L x 3 95 10 0 cm diameter max Weight 6 6 lb 3 0 kg in air Depth rating 500 m Materials Black anodized aluminum pressure case stainless steel shaft and pinching lever arms Teflon tubing rollers acetal resin hold down block Tubing Designed for Norprene A 60 G 0 5 ID 0 75 OD US Plastic part 054282 Electrical and Sampling Input power 12 24 VDC Current Draw 12VDC 25 mA 40 mA 1 2 A 2 1 A when idling sampling w o auxiliary sensors switching valve valve motor stalled Serial Output RS 232 19200 baud 8N1 Bulkhead connector Teledyne Impulse part MCBH 5 MP Sample rate 1 Hz Valve switch time 1 s Pressure sensor 0 750 psi 16 bit resolution 1 cm resolution 0 2 full scale accuracy Thermistor 16 bit resolution Software Downloads Accessories FAQ How to Buy Call to speak with our sales team about purchasing or leasing options 866 212 2226 International 1 425 641 0944 or Request Quote Related Articles Related Products FlowControl Lab Our Newsletter Sign up to get the latest news on Sequoia and our products Home Products Product Overview LISST Instruments LISST 100X

    Original URL path: http://www.sequoiasci.com/product/flowcontrol-sub/ (2016-02-13)
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  • EcoLight-S | Sequoia Scientific
    at different wavelengths dynamically determined at run time with unsolved wavelengths and depths being obtained by interpolation or extrapolation Such options can greatly reduce the run time but also reduce the accuracy of the computed irradiances and other quantities EcoLight S can compute PAR throughout the euphotic zone with less than 10 error in a fraction of a second on a moderately fast computer When optimized EcoLight S is typically 1000 times faster than HydroLight The inputs for EcoLight S are the same as for HydroLight namely the IOPs of the water body the incident sky radiance and the bottom reflectance in finite depth waters All inputs needed to solve the RTE must be explicitly defined by the user before calling the EcoLight S subroutine There are no build in bio geo optical or sky etc models within EcoLight S although such models can be called by the user s own program to obtain the inputs needed by EcoLight S Although there is no user interface for EcoLight S the software comes with fill in the blank templates and example driver programs showing how to define the needed inputs EcoLight S is entirely new code written in Fortran 95 except for a few legacy Fortran 77 public code routines for standard mathematical operations All communication between the user s code and EcoLight S is via two Fortran 95 modules and one call to subroutine EcoLight S The input module contains all of the inputs that must be defined by the user on a fill in the blanks format before calling EcoLight S and the output module returns all of the outputs from EcoLight S for use by the user The user does not need to have any knowledge of the internal workings of the EcoLight S code Likewise the EcoLight

    Original URL path: http://www.sequoiasci.com/product/ecolight-s/ (2016-02-13)
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  • HydroLight | Sequoia Scientific
    the data were taken For example when imaging an underwater object in the daytime the ambient daylight contributes noise in this case path radiance to the signal of interest the light propagating from the target to the sensor HydroLight can compute the ambient daylight field so that it can be subtracted from the total signal received at the sensor to improve the signal to noise ratio of the detected signal As a system design tool How would a proposed system perform under different environmental conditions HydroLight can serve as a controlled environment to predict what the light field received by a sensor would be under a wide range of conditions Such control of the environment and of simulated noise cannot be obtained in the field which is best used for final testing and evaluation of sensors that were first designed using numerical simulations As a teaching tool How can someone new to the field of optical oceanography most quickly build up intuition or a working knowledge about the marine optical environment The best way to gain such knowledge is of course to spend 20 years working as an optical oceanographer The next best way is to use HydroLight to study how oceanic light fields depend on various environmental parameters The current release HydroLight EcoLight version 5 includes both the full HydroLight model and a specialized version of HydroLight called EcoLight that runs much faster than the full code but computes only irradiances and related quantities EcoLight which is bundled with HydroLight and runs within the same user interface is different from the EcoLight S subroutine which is designed to be imbedded in the user s own code such as an ecosystem model See the technical document What s New in HE5 for more information about EcoLight The other pdf files

    Original URL path: http://www.sequoiasci.com/product/hydrolight/ (2016-02-13)
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  • Accessories | Sequoia Scientific
    yellow jacketed cable has a breaking strength of 1000 pounds The standard underwater connectors for communications and power are molded to the cable Part SSA L100X CBL20 SSA L100X CBL30 and SSA L100X CBL50 for 20 30 and 50 m lengths Replacement 2 meter Communications Cable Two meter communications cable with 5 pin underwater connector and DB 9 Serial Port connector for the LISST 100X LISST STX LISST Deep Also used for powering but not communicating with the LISST HOLO with external power 110 220 VAC One cable is included with all new LISST 100X LISST STX LISST Deep and LISST HOLO instruments Part SSA L100X CBL02 High Performance Conductivity and Temperature Sensor Modification High Precision Conductivity and Temperature can be added to the LISST 100X by adding a SeaBird SBE 37SI sensor to the instrument This requires a SeaBird SBE 37SI sensor to be purchased separately AND a new LISST 100X connector endcap The integrated sensor provides high precision conductivity and temperature for each size distribution The values are stored in the standard LISST 100X data file High performance depth sensor can also be added to the SBE 37SI The SBE 37SI is NOT included in the price for the custom connector endcap Replacement Large volume test chamber Large volume test chamber for use with LISST 100X with Path Reduction Modules Provided as standard with the LISST 25X for background measurements Has O ring seal that allows the optics end of the instrument to be submerged while the instrument is horizontal on the bench Available for the LISST 100X and LISST 25X only Part SSA L100X CHLG and SSA L25X CHLG for the LISST 100X and LISST 25X respectively Custom Optical paths Custom optical paths are available for both the LISST 100X and LISST 25X Custom path lengths includes 25 mm 10 mm 5 mm and 3 mm The picture shows a LISST 100X with a 10 mm optical path Clamps Clamps for easy mounting of the LISST 100X LISST Deep LISST STX or the LISST Holo and their external battery pack housings to a frame or simply to a wire for stand alone profiling Part SSA L100X CLP1 set of two one piece clamps A set of two two piece clamps are included with all new LISST 100X LISST STX LISST Holo and LISST Deep instruments Part SSA L100X CLP2 set of two two piece clamps Instrument Stands One pair of stands ships as standard with all new LISST 100X LISST Deep LISST STX and LISST Holo instruments Replacement instrument stands for the LISST 100X LISST Deep andLISST HOLO One pair of stands ships as standard with a new instrument Can also be used for mounting the instrument in the field Replacement Instrument stands for the LISST STX One pair of stands ships as standard with a new LISST STX instruments Can also be used for mounting the instrument in the field LISST Pump for LISST StreamSide and LISST Infinite The LISST Pump is a 12 V stainless

    Original URL path: http://www.sequoiasci.com/products/accessories/ (2016-02-13)
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  • How to Buy | Sequoia Scientific
    PiE Conference 2014 Customer List Newsletter Contact Sequoia International Distributors Sequoia Scientific New Product LISST ABS Log In Register Home Products How to Buy How to Buy For Orders or Inquiries please call Toll Free 866 212 2226 US only or 1 425 641 0944 International or send us an email For more detailed contact information head over to our contact page More in Products Products LISST Portable XR Videos LISST Portable XR Videos Accessories How to Buy Request a Quote Request Submitted Terms Of Sale Our Newsletter Sign up to get the latest news on Sequoia and our products Home Products Product Overview LISST Instruments LISST 100X LISST ABS LISST Portable XR LISST Holo LISST Deep LISST StreamSide LISST STX LISST Hydro LISST Infinite LISST VSF LISST STOKES Optical VSF Sensors LISST SL LISST 25X FlowControl Instruments FlowControl Lab FlowControl Sub Radiative Transfer Models EcoLight S HydroLight Accessories How to Buy Request a Quote Terms Of Sale Support FAQ Downloads Warranty Info Installation Requirements Responsibilities Warranty Register a Product Returns Contact Support Library Articles Technical Papers Standards About Staff News Events PiE Conference 2014 Customer List Newsletter Contact Sequoia International Distributors News More News PiE 2016 Conference to be

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  • Request a Quote | Sequoia Scientific
    Comoros Congo Democratic Republic of the Congo Republic of the Costa Rica Côte d Ivoire Croatia Cuba Cyprus Czech Republic Denmark Djibouti Dominica Dominican Republic East Timor Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Faroe Islands Fiji Finland France French Polynesia Gabon Gambia Georgia Germany Ghana Greece Greenland Grenada Guam Guatemala Guinea Guinea Bissau Guyana Haiti Honduras Hong Kong Hungary Iceland India Indonesia Iran Iraq Ireland Israel Italy Jamaica Japan Jordan Kazakhstan Kenya Kiribati North Korea South Korea Kosovo Kuwait Kyrgyzstan Laos Latvia Lebanon Lesotho Liberia Libya Liechtenstein Lithuania Luxembourg Macedonia Madagascar Malawi Malaysia Maldives Mali Malta Marshall Islands Mauritania Mauritius Mexico Micronesia Moldova Monaco Mongolia Montenegro Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands New Zealand Nicaragua Niger Nigeria Northern Mariana Islands Norway Oman Pakistan Palau Palestine State of Panama Papua New Guinea Paraguay Peru Philippines Poland Portugal Puerto Rico Qatar Romania Russia Rwanda Saint Kitts and Nevis Saint Lucia Saint Vincent and the Grenadines Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Sint Maarten Slovakia Slovenia Solomon Islands Somalia South Africa Spain Sri Lanka Sudan Sudan South Suriname Swaziland Sweden Switzerland Syria Taiwan Tajikistan Tanzania Thailand Togo Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Tuvalu Uganda Ukraine United Arab Emirates United Kingdom United States Uruguay Uzbekistan Vanuatu Vatican City Venezuela Vietnam Virgin Islands British Virgin Islands U S Yemen Zambia Zimbabwe Country Email Please provide your email address so that we can contact you Send me price information on the following items Select all of the instruments you would to receive price information on Select as many as desired using the CTRL or SHIFT keys LISST 100X LISST STX LISST Portable XR LISST ABS LISST Deep LISST Holo LISST StreamSide LISST Hydro LISST Infinite FlowControl HydroLight Quote type requested Let

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