Xylem Multi 3420 User Manual

ba75864e11 02/2011Multi 3420Operating manualDigital pH / D.O. /conductivity meterfor 2 digital IDS sensors

Overview Multi 342010ba75864e11 02/2011Function displayindicatorsAutoCal e.g. TECCalibration with automatic buffer recognition, e.g. with the buffer s

Operation Multi 3420100ba75864e11 02/2011

Multi 3420 Maintenance, cleaning, disposal101ba75864e11 02/20115 Maintenance, cleaning, disposal5.1 MaintenanceThe only maintenance activity required

Maintenance, cleaning, disposal Multi 3420102ba75864e11 02/20115.2 CleaningOccasionally wipe the outside of the measuring instrument with a damp, lint

Multi 3420 What to do if...103ba75864e11 02/20116 What to do if...6.1 General informationSensor symbol flashesDisplayMeter does not react tokeystrokeY

What to do if... Multi 3420104ba75864e11 02/2011Data transmission toUSB memory devicedoes not workError message,Only use rechargeablebatteries!Ni-MH 1

Multi 3420 What to do if...105ba75864e11 02/20116.2 pHError message,OFL, UFLError message,ErrorCause RemedyIDS pH sensor:– Measured value outside the

What to do if... Multi 3420106ba75864e11 02/2011No stable measuredvalue Obviously incorrectmeasured values6.3 Dissolved oxygenError message,OFLCause R

Multi 3420 What to do if...107ba75864e11 02/2011Error message,Error6.4 ConductivityError message,OFLError message,ErrorCause Remedy– Sensor contaminat

What to do if... Multi 3420108ba75864e11 02/2011

Multi 3420 Technical data109ba75864e11 02/20117 Technical data 7.1 General dataDimensions Approx. 180 x 80 x 55 mmWeight Approx. 0.4 kgMechanical stru

Multi 3420 Overview11ba75864e11 02/20111.3 Socket fieldCAUTIONOnly connect sensors to the meter that cannot return any voltages or currents that are n

Technical data Multi 3420110ba75864e11 02/20117.2 Measuring ranges, resolution, accuracyNoteThese data are given in the documentation of your sensor.A

Multi 3420 Lists111ba75864e11 02/20118Lists This chapter provides additional information and orientation aids.Specialist terms The glossary briefly ex

Lists Multi 3420112ba75864e11 02/2011ORP voltage The ORP is caused by oxidizing or reducing substances dissolved in water if these substances become e

Multi 3420 Index113ba75864e11 02/2011AAir calibration beaker . . . . . . . . . . . . . . . . . 68Authorized use . . . . . . . . . . . . . . . . . . .

Index Multi 3420114ba75864e11 02/2011Scope of delivery . . . . . . . . . . . . . . . . . . . . 21Setting the date . . . . . . . . . . . . . . . . .

Multi 3420 Appendix: Firmware update115ba75864e11 02/20119 Appendix: Firmware updateWith the Multi 3420 you can update the firmware of your meter and

Appendix: Firmware update Multi 3420116ba75864e11 02/20119.2 Firmware-Update for IDS SensorsGeneral information Available firmware updates for IDS sen

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

Overview Multi 342012ba75864e11 02/20111.4 Automatic sensor recognitionThe automatic sensor recognition for IDS sensors allows z to operate an IDS sen

Multi 3420 Overview13ba75864e11 02/2011Sensor data from IDSsensorsIDS sensors transmit the following sensor data to the meter:z SENSOR ID– Sensor name

Overview Multi 342014ba75864e11 02/2011

Multi 3420 Safety15ba75864e11 02/20112 SafetyThis operating manual contains basic instructions that you must follow during the commissioning, operatio

Safety Multi 342016ba75864e11 02/20112.1 Authorized useThe authorized use of the meter consists exclusively of the measure-ment of the pH, ORP, conduc

Multi 3420 Safety17ba75864e11 02/2011Safe operation If safe operation is no longer possible, the meter must be taken out of service and secured agains

Safety Multi 342018ba75864e11 02/2011

Multi 3420 Commissioning19ba75864e11 02/20113 Commissioning3.1 Scope of deliveryz Meter Multi 3420 z 4 NiMH rechargeable batteries 1.2 V Mignon type A

Multi 34202ba75864e11 02/2011Accuracy whengoing to pressThe use of advanced technology and the high quality standard of our instru-ments are the resul

Commissioning Multi 342020ba75864e11 02/2011CAUTIONMake sure that the poles of the rechargeable batteries are posi-tioned correctly.The ± signs on the

Multi 3420 Commissioning21ba75864e11 02/2011During mains operation, one of the following symbols is displayed:NoteCharge the batteries completely prio

Commissioning Multi 342022ba75864e11 02/20113.3.4 Setting the date and time3 See section 4.3.5

Multi 3420 Operation23ba75864e11 02/20114 Operation4.1 Switching on the meterSwitching on Press the <On/Off> key.The meter performs a self-test.

Operation Multi 342024ba75864e11 02/2011NoteThe login is done immediately if no password is required.If a sensor is connected the measured value displ

Multi 3420 Operation25ba75864e11 02/2011Changing the password If the administrator has set up the access with password protection:Forgotten thepasswor

Operation Multi 342026ba75864e11 02/20114.3 General operating principlesThis section contains basic information on the operation of the Multi 3420. Op

Multi 3420 Operation27ba75864e11 02/20114.3.2 Display of several sensors in measuring modeThe measured values of the connected sensors can be displaye

Operation Multi 342028ba75864e11 02/20114.3.3 NavigationMeasured value display In the measured value display, you can z use <S><T> to sele

Multi 3420 Operation29ba75864e11 02/2011z FunctionsFunctions are designated by the name of the function. They are immediately carried out by confirmin

Multi 3420 Contents3Multi 3420 - Contentsba75864e11 02/20111 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71.1

Operation Multi 342030ba75864e11 02/20114.3.4 Example 1 on navigation: Setting the language1 Press the <On/Off> key.The measured value display a

Multi 3420 Operation31ba75864e11 02/20115 Select the General submenu with <S><T>. The current selection is displayed with a frame.6 Open t

Operation Multi 342032ba75864e11 02/20114.3.5 Example 2 on navigation: Setting the date and timeThe measuring instrument has a clock with a date funct

Multi 3420 Operation33ba75864e11 02/20113 Select and confirm the Time menu with <S><T> and <MENU/ENTER>.The hours are highlighted.4

Operation Multi 342034ba75864e11 02/20114.4 Sensor-independent settingsThe Storage & config menu includes the following settings:z System (see sec

Multi 3420 Operation35ba75864e11 02/2011System / General / Temperature unit°C °FTemperature unit, degrees Celsius or degrees Fahrenheit.All temperatur

Operation Multi 342036ba75864e11 02/20114.4.2 Data storageThis menu contains all functions to display, edit and erase stored mea-sured values.NoteDeta

Multi 3420 Operation37ba75864e11 02/20114.5 Sensor infoYou can display the current sensor data and sensor settings of a con-nected sensor at any time.

Operation Multi 342038ba75864e11 02/20114.6 Channel displayThe Multi 3420 manages the connected sensors and displays which sensor is plugged to which

Multi 3420 Operation39ba75864e11 02/20114.7 pH value4.7.1 General informationYou can measure the following parameters:z pH value [ ]z Sensor voltage [

Contents Multi 34204ba75864e11 02/20114.5 Sensor info. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374.6 Channel display . .

Operation Multi 342040ba75864e11 02/20114.7.2 Measuring the pH valueStability control(AutoRead )The stability control function (AutoRead) continually

Multi 3420 Operation41ba75864e11 02/2011NoteYou can prematurely terminate the Stability control function manually with <MENU/ENTER> at any time.

Operation Multi 342042ba75864e11 02/20114.7.3 Settings for pH measurementsOverview The following settings are possible for pH measurements:z Calibrati

Multi 3420 Operation43ba75864e11 02/2011Calibration /Unit for slope mV/pH%Unit of the slope.The % display refers to the Nernst slope of -59.2 mV/pH (1

Operation Multi 342044ba75864e11 02/20114.7.4 pH calibrationWhy calibrate? During the operation of an IDS pH sensor, the zero point (asymmetry) andslo

Multi 3420 Operation45ba75864e11 02/20118 Merck 5 * 4.0107.00010.00025 °C9 DIN 19267 1.0904.6506.7909.23025 °C10 Mettler Toledo US * 1.6794.0037.00210

Operation Multi 342046ba75864e11 02/2011* Brand names or trade names are trademarks of their respective owners protected by law.NoteThe buffers are se

Multi 3420 Operation47ba75864e11 02/2011Calibration points Calibration can be performed using one to five buffer solutions in any order (single-point

Operation Multi 342048ba75864e11 02/2011Sample recordCalibration evaluation After calibrating, the meter automatically evaluates the calibration. The

Multi 3420 Operation49ba75864e11 02/2011Preparatory activities Perform the following preparatory activities when you want to calibrate:4.7.5 Calibrati

Multi 3420 Contents5ba75864e11 02/20114.12.6 Data transmission to a USB memory device (USB-A interface) . . . . . . . . . . . . . . . . . . . . . . .

Operation Multi 342050ba75864e11 02/20114.7.6 Carrying out an automatic calibration (AutoCal)Make sure that in the sensor menu, Buffer menu, the buffe

Multi 3420 Operation51ba75864e11 02/2011NoteFor single-point calibration, the instrument uses the Nernst slope (-59.2 mV/pH at 25 °C) and determines t

Operation Multi 342052ba75864e11 02/2011Continuing with two-point calibration9 Thoroughly rinse the IDS pH sensor with deionized water.10 Immerse the

Multi 3420 Operation53ba75864e11 02/2011Continuing with three-to five-point calibrationNoteCalibration is automatically completed after the last buffe

Operation Multi 342054ba75864e11 02/20114.7.7 Carrying out a manual calibration (ConCal)Make sure that in the sensor menu, Buffer menu, the ConCal buf

Multi 3420 Operation55ba75864e11 02/2011NoteFor single-point calibration, the instrument uses the Nernst slope (-59.2 mV/pH at 25 °C) and determines t

Operation Multi 342056ba75864e11 02/2011Continuing with two-point calibration11 Thoroughly rinse the IDS sensor with deionized water.12 Immerse the ID

Multi 3420 Operation57ba75864e11 02/2011Continuing with three-to five-point calibrationNoteAfter the fifth buffer has been measured the calibration is

Operation Multi 342058ba75864e11 02/20114.7.8 Displaying calibration recordsThe calibration data can be displayed and then output to the interface.Dis

Multi 3420 Operation59ba75864e11 02/20114.7.9 Continuous measurement control (CMC function)The Continuous Measurement Control (CMC function) facilitat

Contents Multi 34206ba75864e11 02/2011

Operation Multi 342060ba75864e11 02/20114.7.10 QSC function (sensor quality control)General informationon the QSC functionThe QSC function (Quality Se

Multi 3420 Operation61ba75864e11 02/2011QSC calibration The QSC function is enabled by once carrying out an additional three-point calibration with sp

Operation Multi 342062ba75864e11 02/2011The QSC initial calibration is completed. The sensor is calibrated. If you want to calibrate with special buff

Multi 3420 Operation63ba75864e11 02/20114.8 ORP voltage4.8.1 General informationYou can measure the following parameters:z ORP [mV]NoteThe sensor conn

Operation Multi 342064ba75864e11 02/2011Stability control(AutoRead )The stability control function (AutoRead) continually checks the stability of the

Multi 3420 Operation65ba75864e11 02/2011Criteria for a stablemeasured valueThe Stability control function checks whether the measured values are stabl

Operation Multi 342066ba75864e11 02/20114.9 Dissolved oxygen4.9.1 General informationYou can measure the following parameters:z D.O. concentration z D

Multi 3420 Operation67ba75864e11 02/20114.9.2 MeasuringSelecting thedisplayedmeasured parameterYou can switch between the following displays with <

Operation Multi 342068ba75864e11 02/2011NoteIf the HOLD function is active, you can, e.g. start a manual measure-ment with stability control.Stability

Multi 3420 Operation69ba75864e11 02/2011Criteria for a stablemeasured valueThe Stability control function checks whether the measured values are stabl

Multi 3420 Overview7ba75864e11 02/20111OverviewThe compact, digital precision meter Multi 3420 enables you to carry out pH measurements, ORP measureme

Operation Multi 342070ba75864e11 02/20114.9.3 Settings for D.O. sensors (menu or measurement and calibration settings)Overview The following settings

Multi 3420 Operation71ba75864e11 02/2011FDO Check /Check interval1 ... 60 ... 999 dInterval for the FDO Check (in days).The FDO Check status display i

Operation Multi 342072ba75864e11 02/20114.9.4 FDO® Check procedure (check of the FDO® 925)Why should you checkthe sensor?With the FDO® Check procedure

Multi 3420 Operation73ba75864e11 02/2011Evaluation The evaluation is based on the accuracy required by the user. Together with the nominal value (100

Operation Multi 342074ba75864e11 02/20114.9.5 D.O. calibrationWhy calibrate? D.O. sensors age. This changes the slope of the D.O. sensor. Calibra-tion

Multi 3420 Operation75ba75864e11 02/2011Calibration evaluation ofthe FDO®925Calibration inwater vapor-saturated airProceed as follows to calibrate the

Operation Multi 342076ba75864e11 02/20114 Start the measurement with <MENU/ENTER>.The measured value is checked for stability (stability control

Multi 3420 Operation77ba75864e11 02/20114.9.6 Displaying calibration recordsThe calibration data can be displayed and then output to the interface.Dis

Operation Multi 342078ba75864e11 02/20114.10 Conductivity4.10.1 General informationYou can measure the following parameters:z Conductivityz Specific r

Multi 3420 Operation79ba75864e11 02/2011Selecting thedisplayedmeasured parameterYou can switch between the following displays with <M>:z Conduct

Overview Multi 34208ba75864e11 02/2011The two USB interfaces (USB-A and USB-B) enable you to:z Transmit data to – a USB memory device–a PCz Update the

Operation Multi 342080ba75864e11 02/2011NoteYou can prematurely terminate the Stability control function manually with <MENU/ENTER> at any time.

Multi 3420 Operation81ba75864e11 02/20114.10.3 Temperature compensationThe calculation of the temperature compensation is based on the pre-set referen

Operation Multi 342082ba75864e11 02/20114.10.4 Settings for IDS conductivity sensorsOverview The following settings are possible for IDS conductivity

Multi 3420 Operation83ba75864e11 02/2011Type Measuring cell usedCal Measuring cells whose cell con-stant is determined by calibration in the KCL contr

Operation Multi 342084ba75864e11 02/2011Setting menu ofLR325/01Menu item Possible set-tingDescriptionCell constant 0.090 ... ... 0.100 ... 0.110 cm-1T

Multi 3420 Operation85ba75864e11 02/20114.10.5 Determining the cell constant (calibration in control standard)Why determine the cellconstant?Aging sli

Operation Multi 342086ba75864e11 02/2011Determining the cellconstantFor this calibration procedure, the Type setting must be set to cal . Pro-ceed as

Multi 3420 Operation87ba75864e11 02/20114.10.6 Displaying calibration recordsThe calibration data can be displayed and then output to the interface.Di

Operation Multi 342088ba75864e11 02/20114.11 Data storageYou can transmit measured values (datasets) to the data storage:z Manual storage (see section

Multi 3420 Operation89ba75864e11 02/20114.11.1 Manual storageYou can transmit a measurement dataset to the data storage as fol-lows. The dataset is at

Multi 3420 Overview9ba75864e11 02/20111.2 Display<STO>:<STO_>: Saves a measured value manuallyOpens the menu for the automatic save functi

Operation Multi 342090ba75864e11 02/2011Settings You can configure the automatic storage function with the following set-tings:Starting the automatics

Multi 3420 Operation91ba75864e11 02/2011The active automatic storage function can be recognized by the prog-ress bar in the status line. The progress

Operation Multi 342092ba75864e11 02/20114.11.3 Editing the measurement data storageThe contents of the manual or automatic measurement data storage ca

Multi 3420 Operation93ba75864e11 02/2011Display presentationof a datasetSample printoutQuitting the display To quit the display of stored measurement

Operation Multi 342094ba75864e11 02/20114.12 Transmitting data (USB interfaces) 4.12.1 Outputting current measurement data4.12.2 Transmitting data (to

Multi 3420 Operation95ba75864e11 02/20114.12.4 Options for data transmission to a PC (USB-B interface)Via the USB-B interface you can transmit data to

Operation Multi 342096ba75864e11 02/20114.12.5 Connecting the USB memory device / USB-A interface (USB Host)Connect the USB-A interface (USB Host) of

Multi 3420 Operation97ba75864e11 02/20114.13 ResetYou can reset (initialize) all sensor settings and sensor-independent settings separately from each

Operation Multi 342098ba75864e11 02/2011the required parameter in the measured value display and press the <MENU/ENTER> key.Dissolved oxygen The

Multi 3420 Operation99ba75864e11 02/20114.13.2 Resetting the system settingsThe following system settings can be reset to the default condition:The sy