Sartorius IB 31000 P Spezifikationen

-III111,I~IIIIIIIIIII-ITechnischeUniversiteit DelftFaculteit der Civiele TechniekVakgroep Waterbouwkunde

IIpump and entered the beaker again. An outline of this set-up is given in flgure 2.3.2. The influenceof a varying flow velocity on the reading of the

IIIIperformance of the sensors was observed. However, if the maximum concentration was 0.2 kg-m?the 5 mm sensor gave the best results and was the most

IIIIThe transmitter uses a pulsed-dc technique to energize the flux-producing coils of the flow tube. Theflow tube is grounded with wires to the flang

II3.2 TestsIIThe performance of the flowmeter was compared to the performance of an orifice plate under thesame conditions in June 1990. For this purp

IIIIIwater (concentration490kg-m") was injected at position B (see figure 3.2.1) in such a way that thetotal average flow rate was not changed. T

II5.Electromag~etic velocity meterIIIMeasuring the flow velocity of a suspension of saline water and China Clay makes high demandsupon the device used

II5.2ExperiencesIPrior to using an E.M.S., the sensor is placed in a stagnant fluid identical to the fluid in which themeasurement will be made. The X

IITable 5.2.1Comparison of velocity measurements.IAverage velocityAverage velocityPosition of sensor(distance/time)(logged data)[cm-s"][cm-s"

III6.2 Instructions for useIWhen the gauge has been kept dry for a long period, it should be cleaned and the electrodes shouldbe placed under water fo

IIThe best straight line ( V=aH + b) was calculated using a least squares approximation [2]. Theslope(a)and its standard deviation(u,.)are shown in ta

IIIIIIIIIIIIIIIIIIIIInstruments used in the research onCohesive SedimentsP.J. de Witreport DO.8-92August 1992Hydromechanies SectienHydraulic and Geote

IIIIIIIIIIIIIIIIIIII0.5006..--1,,°5..2*=511.11.41~,~~ r'''ten,.o.."- -J--tt=J==~=========:3g ~IZFIII..I(uf.mie.LEI.e"fca,conn

IIIIn the Hydromechanics Laboratory four of these pore-pressure meters are present; three with a rangeof 75 mbar and one with a range of 350 mbar. Eve

IIIn the same cross-sectiçn a wave gauge was instalied. The data ofthe different devices were recordedon a personal computer by means of a data-acquis

IIIUsing the experimental data the wave number k = 211"L -t can be estimated and the pressureamplitudeftcan then be calculated.From the results p

IIIIIIIIII1IIIIIIIsediment and the temperature. Therefore the instrument should be calibrated with exactly the samepore water and sediment. In order t

IIIIIIIIIIIIIIIIIIIIvibrations. To determine the weight of a sample as accurate as possible the balances should becalibrated.Ifthe balance is unloaded

IIIfor half an h?ur at100°C.From now on the filter should only be touched carefully by asmooth-tip forceps.Ill. Remove filter from oven and place it i

IIIr-_JI=::;----TPCC.",I ••• 1...-..:---- Venl Poru~'----C...,IF~----Go'htSupponPlotefunncl $(tmtiNo. 8 StoPP<l'IIIIFigureJO

IIII13. References.II[3]II[4][5]IIIII[6][7][8][9][10]III[11][12][13]II[14][15]II[1] Battjes, J.A., 1990,Short period waves,(in Dutch), Delft Universit

IIIIIIIIIIIIIIIIIIII[16][17][18][19][20][21]Nalge Company, 1988,Nalgene™Vacuum Manifold.Sartorius,Sartorius Industry IB 16000S,IB 31000 P, IB3I, Insta

IIIITable of contentsAbstract...III1. Introduction... 1II2. Oslim

IIIIIIIIIIIIIIIIIIII

IIII10. Filtration... 2010.1 Filtration procedure 2010.2 Specifications filters and apparatus used . . . . .

IIIAbstractIIA research program was started to study the behaviour of cohesive sediments at the Delft Universityof Technology in 1989. As part ofthis

I2.1 DescriptionAn Oslim comprises of a sensor and a signal processor. The sensor housing is made of brass andcontains an infrared LED (Light Emitting

III-ee-e-e-e..LICIIT DEAMILlGIiT UEAMIIIIIFigure 1.1.1The Oslim sensor.IIIamount of adsorbed light and the sediment concentration. The analog output o

III- Pump the suspension with the maximal concentration to be measured through the sensor.Adjust the output reading to 10.0 Vdc with the "SPAN&qu

IIIconcentrations. A description of these tests will be given in the next sections.IIIIIIoMAGNETIC STIRRERIoIIIFigure 2.3.2Ouüine of experimenta/ set-