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LISST-SL V2.1

User’s Guide

Red Taper Plugs (for Plugging

Pressure Sensor Ports)

35 m Screen Spares for

Pitot Nozzle

Pins and Clips

Copper Cooling Coil

Rubber Bands (to Cover

Pressure Ports)

Plastic Pitot Tube Caps

for Pitot Tube Tozzle in

Storage

Plastic Intake Tube Caps

Syringes

3/8” x 3/8” Tube

Adapter

½” x 3//8” Tube Adapter

Tube Adapter Clips

¼” ID Tygon Tubing

Hose Pinch Clamps

Wing Nuts to Hold Filter to

Tail

ISO Coarse Sediment

LISST-SL Tail Fin

Tail fin Screws

Содержание LISST-SL

Страница 1: ...Operating Manual LISST SL Version 2 1 LISST SL...

Страница 2: ...ument serial number with any correspondence Factory Technical Service Representatives Randy Srnsky randy srnsky SequoiaSci com 1 425 641 0944 ext 110 Chuck Pottsmith pottsmith SequoiaSci com 1 425 641...

Страница 3: ...nload from TCB 17 IV Using the LISST SL System in a Laboratory 18 1 First Assembly and Test in Laboratory 18 2 Background File acquisition 19 3 Instrument health check 19 4 Collecting Test Data in a L...

Страница 4: ...III FAQ s 31 APPENDIX A File names File Formats and Size Classes 33 APPENDIX B Purging the Pitot System 37 APPENDIX C Cleaning the Optics 40 APPENDIX D Background Files 42 APPENDIX E Detailed Accessor...

Страница 5: ...ot order a B reel you will need to procure one from one of many vendors in the US There are many more items of accessories and software for downloading and processing raw data A full list of items shi...

Страница 6: ...he depth sensor Temperature is sensed in the water passage within the instrument On the nose is an intake tube 9 on the instrument axis and above it is the pitot tube velocity sensor 5 To prevent larg...

Страница 7: ...ithium ion battery and a computer system that controls the display on a touch screen panel The battery powers the LISST SL sensor the computer within the TCB and the touch screen All commands are thro...

Страница 8: ...able in several publications For more detail we invite the reader to review the Application Note How LISST instruments measure the size distribution and concentration of particles on our website http...

Страница 9: ...we repeatedly emphasize maintaining clean optics and low stable values of background scattering on the inner rings See also Appendix D on background scattering General Precautions The instruments are...

Страница 10: ...information about some special topics 5 7 13 Videos In This Manual In this manual you will occasionally see this video icon preceded by one or more numbers It means that video s of this number is ass...

Страница 11: ...ent foam stands Nose wrench 3 ea 1 m flex tubes Filter wing nuts 2 Funnels Cleaning solution Tweezers Cleaning Rod Plastic sampling tube caps Rubber bands Syringes 2 ea Red Taper Plugs Cleaning patche...

Страница 12: ...operation 0 30 m 100ft Operating Temperature 0 400 C 32 1040 F River velocity 0 3 m sec or 0 10 ft sec Isokinetic control range 0 5 to 3 m sec or 1 5 to 10 ft sec pump minimum speed is set to a low v...

Страница 13: ...y of when created instrument serial number firmware version in TCB name of file with Concentration and Mean Size name of Raw Scattering data binary file associated background file Z asc below and unit...

Страница 14: ...3 2 65 3 13 2 88 4 3 13 3 69 3 40 5 3 69 4 35 4 01 6 4 35 5 14 4 73 7 5 14 6 06 5 58 8 6 06 7 15 6 59 9 7 15 8 44 7 77 10 8 44 9 96 9 17 11 9 96 11 8 10 8 12 11 8 13 9 12 8 13 13 9 16 4 15 1 14 16 4...

Страница 15: ...ble tube is also attached to the water exit end Leave this as is It will be used for acquiring the in situ Background file B Reel Recall from Chapter I that the B reel is a battery powered or manually...

Страница 16: ...a panel showing information on the instrument Pressing the Done button returns to the Setup Menu The button leads you to an option to set pump speed Leave it on Auto For some laboratory work e g to b...

Страница 17: ...ory system CALIBRATION Recall that the Calibrate function records a Background file This file contains measurements of light scattered from imperfections of optics on the 32 ring detectors A few other...

Страница 18: ...ng 20 samples roughly 25 seconds the display will show your new background data and the factory values red line Ideally the two should be very similar Also displayed at the top of frame are two variab...

Страница 19: ...nction We repeat See Appendix D to learn more about Background files and when they are acceptable MEASURE ACQUIRE DATA This button is meant to take you to data collection After familiarizing you we wi...

Страница 20: ...samples saved in the data file the filename the date and local time the water temperature and the state of the battery Pump supply voltage and current are displayed in a crude semi quantitative way T...

Страница 21: ...t off The LED is Red when it is charging Charging Lithium batteries requires smart chargers If you attempt to charge the battery with some other charger your warranty will be voided The battery charge...

Страница 22: ...ilter cartridge to the tail fin and connect the filter inlet tube to the pump outlet quick disconnect fitting Place a carboy filled with clean water less than one meter above the LISST SL Connect a in...

Страница 23: ...y background in the middle rings This means the optics can be cleaned Dirt on the windows of the test cell can explain this excess light The inner rings show large amount of light but the Lp and Lref...

Страница 24: ...set up a small magnetic stir bar so that the sediment won t all settle out Stir vigorously Connect one water filled flexible tube 1 4 inch ID or 6 mm ID with a pinch clamp to the intake of the LISST S...

Страница 25: ...oad data from the instrument to your PC and process it See Chapter VI Turn off power on the TCB You can now store the instrument TO AVOID FOULING THE INTERNAL WINDOWS ALWAYS DRAIN ALL TURBID WATER OUT...

Страница 26: ...perature You must pack the following items LISST SL Topside Controller Box B reel A platform for the B reel Gallon of filtered clear water A 0 2 micron filter cartridge provided by Sequoia Tubing and...

Страница 27: ...ll in river with the filter etc connected use the MEASURE button to view Concentration If it is in the range of approximately 1 mg l the background is good Cancel and stop the instrument Pull up the L...

Страница 28: ...ays immediately cover the pitot tube with a pinched tube or plastic cap provided with the instrument It is a good idea to wash the exterior of the instrument and remove sediment from the pressure port...

Страница 29: ...e Size Distribution which contains the 32 bin size distributions are created from post processing dat file through the Windows software These Particle Size Distribution files have the name Rxxxxxxx ps...

Страница 30: ...e buttons and their functions next OFFLOAD DATA As the name implies when you are connected to the TCB PROCESS RAW DATA This button prompts you for the names of the background and other files and then...

Страница 31: ...button You will be prompted to select the file to process the instrument serial number and the background file that was collected with this data file The processing takes very little time and is typi...

Страница 32: ...ttom right 7 Formats of Results file The formats of all files txt csv and asc are provided in Appendix A 8 Presenting Results Sequoia Scientific Inc does not provide software for you to prepare your r...

Страница 33: ...storage It is a good idea to connect a hose to the intake and run tap water through the system This removes any grains that may have accumulated in the pump Remove the pitot tube cap and clean the scr...

Страница 34: ...for a long duration it is a good idea to run chlorinated water through the system to prevent biological growth on internal surfaces The same is recommended with the filter provided for Background file...

Страница 35: ...brary Our software that processes raw data files incorporates irregular particle shape Does the LISST SL require any calibration No All that is required is that the user makes a background measurement...

Страница 36: ...les With changing grain size NTU itself changes and it is meaningless to do a cross calibration Can I overcharge the rechargeable battery inside the instrument If you charge the battery with the power...

Страница 37: ...ers to instrument serial number Ringarea_2005 asc A file used by the data processing program It applies geometrical factors to raw data Also used in processing data in MATLAB Rxxxxxxx txt Text File cr...

Страница 38: ...tion of the 50 values is below Zxxxxxxx ASC Background file The format is identical to the dat file shown above Rxxxxxxx psd Particle Size Distribution from post processing dat file It is a binary fil...

Страница 39: ...LISST SL V2 1 User s Guide 35...

Страница 40: ...3 13 3 69 3 40 5 3 69 4 35 4 01 6 4 35 5 14 4 73 7 5 14 6 06 5 58 8 6 06 7 15 6 59 9 7 15 8 44 7 77 10 8 44 9 96 9 17 11 9 96 11 8 10 8 12 11 8 13 9 12 8 13 13 9 16 4 15 1 14 16 4 19 3 17 8 15 19 3 2...

Страница 41: ...front bulkhead You will then reassemble the nose to the bulkhead underwater in a tank Preparation of the pitot velocity sensor prior to deployment can reduce the need for purging the instrument in th...

Страница 42: ...ieces and threads as they may move during reassembling The syringe provided can be helpful for dislodging bubbles Various pumping schemes can also be used for cleaning and de bubbling The differential...

Страница 43: ...nd the results viewed on the TCB Set the column of water in the tubing at 30 cm 12 inches above the water surface Select the Measure mode on the TCB The velocity should be approximately 2 4 m sec 8 ft...

Страница 44: ...verify the cleanliness of the windows check the View Rings function under the Background Calibration check the View Rings box on the lower left This will be like a normal calibration but the View Rin...

Страница 45: ...LISST SL V2 1 User s Guide 41...

Страница 46: ...proceed Read the Noise Test below Is it scintillation Scintillation is the scattering of light by turbulent eddies with temperature differences between water and instrument The identifier for this is...

Страница 47: ...Only 5 Pin Impulse Plug and Sleeve Protection of SL Underwater Connector in Transit or Storage 3 pin Impulse Plug Nose Wrench Used to Remove Nose Section Tweezers O ring Pick Tool Kit For Removing Ins...

Страница 48: ...Copper Cooling Coil Rubber Bands to Cover Pressure Ports Plastic Pitot Tube Caps for Pitot Tube Tozzle in Storage Plastic Intake Tube Caps Syringes 3 8 x 3 8 Tube Adapter x 3 8 Tube Adapter Tube Adap...

Страница 49: ...tain a waterproof isolated connection to the Power In The wires for the Test Points are not used and should be terminated and sealed The text and illustrations below describe the wiring details for th...

Страница 50: ...il fin 15 Attaching the cleaning patch to clean the optics 16 Inserting the cleaning rod to clean the optics 17 An example of a head pressure applied to the pitot tube 18 Applying an artificial head o...

Страница 51: ...V2 1 User s Guide 47 29 An example of View Rings After Cleaning the optics 30 Switching from View Rings to Background Collection 31 Connecting the B Reel cable to the SL 32 Connecting the TCB to B Re...

Страница 52: ...ded for repaired or replacement Products as provided for herein the Warranty Period If Customer does not give SEQUOIA such written notice within the Warranty Period then such warranties will be satisf...

Страница 53: ...PARAGRAPH 1 5 Exclusive Remedies CUSTOMER S RIGHTS AND REMEDIES SET FORTH IN PARAGRAPHS 2 AND 3 ABOVE ARE EXCLUSIVE AND IN LIEU OF ANY AND ALL OTHER RIGHTS AND REMEDIES FOR ANY BREACH OF OR OTHER FAIL...

Страница 54: ...e Rights in Technical Data and Computer Software clause at 48 C F R 252 227 7013 or in subparagraph c 2 of the Commercial Computer Software Restricted Rights clause at 48 C F R 52 227 19 as applicable...

Страница 55: ...LISST SL V2 1 User s Guide 51 NOTES...

Страница 56: ...LISST SL V2 1 User s Guide 52 Copyright Sequoia Scientific Inc 2700 Richards Rd Suite 107 Bellevue WA 98005 http www SequoiaSci com...

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