Xylem MULTI 3500i HANDHELD MULTIPARAMETER METERS Bedienungsanleitung

ba75689e01 01/2007Multi 3500iOperating manualESCSTOPRTCALMOpH / ISE / DO / conductivity measuring instrument

Overview Multi 3500i8

Lists Multi 3500i98GlossaryAdjusting To manipulate a measuring system so that the relevant value (e. g. the displayed value) differs as little as poss

Multi 3500i Lists99Measured value The measured value is the special value of a measured parameter to be determined. It is given as a combination of th

Lists Multi 3500i100Salinity The absolute salinity SA of seawater corresponds to the relationship of the mass of dissolved salts to the mass of the so

Multi 3500i Index1019 IndexAAir calibration vessel ...53Asymmetry of the pH electrode ...30Authorized use .

Index Multi 3500i102MultiLab pilot ... 77OObligations of the purchaser ... 10Operating safety

Multi 3500i Appendix: Firmware Update103Appendix: Firmware UpdateGeneral The program "Firmware Update 350i" enables you to update the firm-w

Appendix: Firmware Update Multi 3500i104

Wissenschaftlich-Technische Werkstätten GmbHDr.-Karl-Slevogt-Straße 1D-82362 WeilheimGermanyTel: +49 (0) 881 183-0+49 (0) 881 183-100Fax: +49 (0) 881

Multi 3500i Safety92 SafetyThis operating manual contains basic instructions that you must follow during the commissioning, operation and maintenance

Safety Multi 3500i102.2 General safety instructionsThis instrument is built and inspected according to the relevant guide-lines and norms for electron

Multi 3500i Commissioning113 Commissioning3.1 Scope of deliveryz Multi 3500i handheld measuring instrument with 4 rechargeable bat-teries, 1.2 V type

Commissioning Multi 3500i123.3 Initial commissioningPerform the following activities:z For mains operation and charging the batteries: Connect the plu

Multi 3500i Operation134 Operation4.1 Switching on the measuring instrumentSwitching on Press the <ON/OFF> key.The measured value display appear

Operation Multi 3500i144.2 General operating principlesThis section contains basic information of the operation of the Multi 3500i. Operating elements

Multi 3500i Operation154.2.2 NavigationMeasured value display In the measured value display, you can z select a measuring window with <▲><▼&g

Operation Multi 3500i16z FunctionsFunctions are designated by the name of the function. They are im-mediately carried out by confirming with <MENU/

Multi 3500i Operation174.2.3 Example 1 on navigation: Setting the language1 Press the <ON/OFF> key.The measured value display appears.The instru

Accuracy whengoing to pressThe use of advanced technology and the high quality standard of our instruments are the result of a continuous development.

Operation Multi 3500i186 Open the General submenu with <MENU/ENTER>. 7 Open the setting mode for the Language with <MENU/ENTER>.8 Select

Multi 3500i Operation194.2.4 Example 2 on navigation: Setting the date and timeThe measuring instrument has a clock with a date function. The date and

Operation Multi 3500i205 Change and confirm the setting with <▲><▼> and <MENU/ENTER>.The hours are highlighted.6 Change and confirm

Multi 3500i Operation214.3 System settings (system menu)The system menu comprises the following settings:z Data storage (see section 4.3.1)z Display (

Operation Multi 3500i22Settings To open the system menu in the measured value display, press the <MENU/ENTER> key for approx. 1 s. After complet

Multi 3500i Operation234.3.3 SystemOverview The following sensor-independent instrument features can be adjusted in the system menu/System and its sub

Operation Multi 3500i24System / Interface / Baud rate1200, 2400, 4800, 9600, 19200Baud rate of the data inter-faceSystem / Interface / Output formatAS

Multi 3500i Operation254.4 pH value / ORP voltage4.4.1 General informationYou can measure the following variables:z pH value [ ]z ORP [mV]CautionWhen

Operation Multi 3500i26The display of the temperature indicates the active temperature mea-suring mode:* If you do not wish that, you can:– either dis

Multi 3500i Operation274.4.2 Measuring the pH valueAutoRead(Drift control)The AutoRead function (drift control) continually checks the stability of th

Multi 3500i Contents11 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.1 General features . . . . . . . . .

Operation Multi 3500i284.4.3 Measuring the ORP voltageNoteORP electrodes are not calibrated. However, you can check ORP elec-trodes using a test solut

Multi 3500i Operation294.4.4 Settings for pH and ORP measurementsOverview The following settings are possible for pH and ORP measurements:z Resolution

Operation Multi 3500i304.4.5 pH calibrationWhy calibrate? pH electrodes age. This changes the asymmetry (zero point) and slope of the pH electrode. As

Multi 3500i Operation31Calibration points Calibration can be performed using one, two or three buffer solutions in any order (single-point, two-point

Operation Multi 3500i32Display calibration dataand output to interfaceYou can have the data of the last calibration displayed (see section 4.8.5). Sub

Multi 3500i Operation33Calibration evaluation After calibrating, the measuring instrument automatically evaluates the calibration. The asymmetry and s

Operation Multi 3500i344.4.6 Carrying out the TEC and NIST/DIN calibrationThe two calibration procedures only differ in the usage of different buff-er

Multi 3500i Operation35NoteFor single-point calibration, the instrument uses the Nernst slope (-59.16 mV/pH at 25 °C) and determines the asymmetry of

Operation Multi 3500i36Continuing for two-pointcalibration(Calibration type TEC)8 Thoroughly rinse the electrode with distilled water.9 Immerse the el

Multi 3500i Operation37Continuing for three-point calibration(Calibration type TEC)14 Thoroughly rinse the electrode with distilled water.15 Immerse t

Contents Multi 3500i24.7 Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 584.7.1 General information . . . . . . .

Operation Multi 3500i384.4.7 Carrying out a ConCal calibrationSingle-point calibration Use any buffer solution for this rapid method.The calibration w

Multi 3500i Operation39NoteFor single-point calibration, the instrument uses the Nernst slope (-59.16 mV/pH at 25 °C) and determines the asymmetry of

Operation Multi 3500i40Continuing for two-pointcalibration(Calibration typeConCal)10 Thoroughly rinse the electrode with distilled water.11 Immerse th

Multi 3500i Operation414.5 Ion concentration4.5.1 General informationNoteIncorrect calibration of ion sensitive electrodes will result in incorrect me

Operation Multi 3500i42Preparatory activities Perform the following preparatory activities when you want to measure:NoteWhile no valid calibration is

Multi 3500i Operation43adjust the temperature of the standard and measuring solutions ac-cordingly. If the temperature difference is greater the [Temp

Operation Multi 3500i44Standard solutions Use two or three different standard solutions. For three-point calibra-tion, the standard solutions have to

Multi 3500i Operation45NoteThe calibration record is automatically transmitted to the interface after calibrating.Sample record:Calibration evaluation

Operation Multi 3500i46Preparatory activities Perform the following preparatory activities when you want to calibrate:Carrying out anISE calibrationPr

Multi 3500i Operation47Continuing for two-pointcalibration11 Wait for the end of the AutoRead measurement or accept the calibration value with <MEN

Multi 3500i Overview31Overview1.1 General featuresThe Multi 3500i compact precision handheld meter enables you to car-ry out pH measurements, ISE meas

Operation Multi 3500i48Continuing for three-point calibrationRepeat the steps 12 to 20 in the same way for the third standard solu-tion. After finishi

Multi 3500i Operation494.6 Dissolved oxygen4.6.1 General informationYou can measure the following variables:z DO concentration z DO saturation index (

Operation Multi 3500i50Preparatory activities Perform the following preparatory activities when you want to measure:4.6.2 MeasuringSelecting thedispla

Multi 3500i Operation51NoteThe ConOx double sensor can perform the salinity correction automat-ically. The conductivity module of the sensor measures

Operation Multi 3500i52Settings The settings are made in the measuring menu of the DO measurement. To open the settings, activate the relevant measuri

Multi 3500i Operation534.6.4 DO calibrationWhy calibrate? DO sensors age. This changes the slope of the DO sensor. Calibration determines the current

Operation Multi 3500i54Sample record:Calibration evaluation After the calibration, the measuring instrument evaluates the current status of the sensor

Multi 3500i Operation55Calibration inwater vaporsaturated air(air calibration vessel)For this calibration procedure, the Comparison meas. setting must

Operation Multi 3500i56Calibration via aComparison meas.For this calibration procedure, the Comparison meas. setting must be set to On in the measurin

Multi 3500i Operation575 Press <MENU/ENTER>.The AutoRead measurement to determine the DO concentrati-on starts.6 Wait for the end of the AutoRea

Overview Multi 3500i41.2 SETs of equipmentThe measuring instrument is also available as part of individual SETs of equipment. You will find additional

Operation Multi 3500i584.7 Conductivity4.7.1 General informationYou can measure the following variables:z Conductivityz Specific resistancez Salinityz

Multi 3500i Operation594.7.2 MeasuringYou can carry out conductivity measurements as follows:Selecting thedisplayedmeasured variableYou can switch bet

Operation Multi 3500i604.7.3 Temperature compensationThe calculation of the temperature compensation is based on the pre-set reference temperature, 20

Multi 3500i Operation614.7.4 Settings for conductivity measuring cellsOverview The following settings are possible for conductivity measuring cells:z

Operation Multi 3500i62Temp. comp. (TC) / Linear coeff.0.000 ... 3.000 %/KCoefficient of the linear tem-perature compensation.This setting is only ava

Multi 3500i Operation634.7.5 Determining the cell constant (calibration in the control standard)Why determine the cellconstant?Aging slightly changes

Operation Multi 3500i64Calibration evaluation After the calibration, the measuring instrument automatically evaluates the current status of the calibr

Multi 3500i Operation655 Press <MENU/ENTER>.The AutoRead measurement to determine the cell constant starts.6 Wait for the end of the AutoRead me

Operation Multi 3500i664.8 Data storageYou can transmit measured values (data records) to the data storage in two ways:z Manual data storage (see sect

Multi 3500i Operation674.8.1 Manual data storageProceed as follows to transmit to the data data storage and simulta-neously output to the interface a

Multi 3500i Overview5Set (sample configuration):1 Multi 3500i measuring instrument, carrying strap with 2 carrying clips, armoring2 Cond/Oxi beaker wi

Operation Multi 3500i684.8.2 Automatic data storage at intervalsThe storage interval (Interval) determines the chronological interval be-tween automat

Multi 3500i Operation69Data storage adminis-trationThe two lower display lines indicate the use of the data storage calcu-lated in advance for the sel

Operation Multi 3500i70Terminating the auto-matic data storage func-tion prematurelyProceed as follows to switch off the automatic data storage functi

Multi 3500i Operation71SettingsMenu item Setting/functionDescriptionData storage / Manual data storage / Display- Displays in pages all mea-suring dat

Operation Multi 3500i72Data filterDisplay presentationof a datasetMenu item Setting/functionDescriptionFilter Filter criteria:No filter Data filter sw

Multi 3500i Operation73Sample printoutQuitting the display To quit the display of stored measuring datasets, you have the follow-ing options:z Switch

Operation Multi 3500i744.8.5 Displaying and outputting calibration recordsYou can display the calibration data z of one selected sensor, orz of all se

Multi 3500i Operation75Sample printout03.11.03 07:14CALIBRATION pH03.11.03 07:10:45Multi 3500i ser. no. 12345678Cal. interval 7 dAutoCal TE

Operation Multi 3500i764.9 Transmitting data (RS 232 interface)4.9.1 Options for data transmissionVia the RS 232 interface, you can transmit data to a

Multi 3500i Operation77interface (displayed measured values, measuring datasets, calibration records).4.9.2 Connecting a PC/external printerUse the AK

Overview Multi 3500i61.3 KeypadKey functionsMENUENTERESCSTOCALPRTMSelect the measured variable <M>:– pH value / ORP / ion concentration– DO conc

Operation Multi 3500i784.10 ResetYou can reset (initialize) all sensor settings and sensor-independent settings separately from each other.4.10.1 Rese

Multi 3500i Operation79Cond The following settings for conductivity measurements are reset to the default settings with the Reset function:The sensor

Operation Multi 3500i80

Multi 3500i Maintenance, cleaning, disposal815 Maintenance, cleaning, disposal5.1 MaintenanceThe measuring instrument is maintenance-free.5.2 Cleaning

Maintenance, cleaning, disposal Multi 3500i82Measuring instrument Dispose of the measuring instrument without the rechargeable batter-ies as electroni

Multi 3500i What to do if...836 What to do if...6.1 pH and ORP measurementError message,OFL or UFL(measuring rangeexceeded or undercut)Error message,

What to do if... Multi 3500i84No stable measuredvalue Obviously incorrectmeasured valuesSensor symbol flashesCause RemedypH electrode:– Diaphragm con

Multi 3500i What to do if...856.2 ISE measurementError message OFLObviously incorrectmeasured valuesError message, Error(invalidcalibration) Warning [

What to do if... Multi 3500i866.3 DO measurementDO sensor was notrecognizedError message OFLError message, Error(invalid calibration)Error message, LE

Multi 3500i What to do if...87Measured value toohighSensor symbol flashes6.4 Conductivity measurementConductivitymeasuring cellwas not recognizedError

Multi 3500i Overview71.4 DisplayThe graphical display can indicate up to three measuring windows at the same time. The illumination enables to read th

What to do if... Multi 3500i886.5 General errorsDisplay, LoBatInstrument does notreact to keystrokeCause Remedy– Batteries almost empty – Charge the b

Multi 3500i Technical data897 Technical data7.1 General dataDimensions approx. 172 x 80 x 37 mmWeight approx. 0.3 kg (without plug-in power supply)Mec

Technical data Multi 3500i90Guidelinesand norms usedEMC EC guideline 89/336/EECEN 61326-1:1998EN 61000-3-2 A14:2000EN 61000-3-3:1995FCC Class AInstrum

Multi 3500i Technical data917.2 Measuring ranges, resolution, accuracy7.2.1 pH/ORP7.2.2 ISEMeasuring ranges,resolutionVariable Measuring range Resolut

Technical data Multi 3500i927.2.3 Dissolved oxygenMeasuring ranges,resolutionNote: The values quoted in brackets apply especially for the DurOx 325 se

Multi 3500i Technical data937.2.4 ConductivityMeasuring ranges,resolutionVariable Measuring range Resolution [µS/cm] 0.000 ... 2.000*0.00 ... 20.00**0

Technical data Multi 3500i94Accuracy (± 1 digit) Variable Accuracy Temperature of the test sample / Temperature compensationNone (Off) ± 0.5 %Nonline

Multi 3500i Lists958ListsThis chapter provides additional information and orientation aids.Abbreviations The list of abbreviations explains the indica

Lists Multi 3500i96AbbreviationsConductivity value (international γ)ASY AsymmetryCalibration type NIST/DINAutomatic pH calibration with buffer solutio

Multi 3500i Lists97TDS Total Dissolved SolidsTr20 Reference temperature of 20 °CTr25 Reference temperature of 25 °CUFL Display range undercut (underfl