Xylem Oxi 1970i PORTABLE DISSOLVED OXYGEN METERS User Manual

ba75691e01 01/2007Oxi 1970iOperating manualRUN / ENTERAUTO READCALSTOMRCLON / OFFOxi 1970img/lO71 7 692°CARngTPREL1Portable oxygen measuring instrume

Safety Oxi 1970i10ba75691e01 01/20072.2 General safety instructionsThis instrument is built and inspected according to the relevant guide-lines and no

Oxi 1970i Commissioning11ba75691e01 01/20073 Commissioning3.1 Scope of deliveryz Portable measuring instrument, Oxi 1970i with integrated recharge-abl

Commissioning Oxi 1970i12ba75691e01 01/2007Connecting the plug-inpower supply unit3.3 Initial commissioningPerform the following activities:z For main

Oxi 1970i Commissioning13ba75691e01 01/20074 Set the date of the current day with <▲> <▼>.5 Confirm with <RUN/ENTER>.The date (month

Commissioning Oxi 1970i14ba75691e01 01/20073.4 Sensor quiverTo store the sensors during field operation and to keep the sensor ele-ment moist, the qui

Oxi 1970i Operation15ba75691e01 01/20074 Operation4.1 Switching on the measuring instrumentNoteThe measuring instrument has an energy saving feature t

Operation Oxi 1970i16ba75691e01 01/20074.2 Measuring4.2.1 General informationYou can measure the following variables:z D. O. concentrationz D. O. satu

Oxi 1970i Operation17ba75691e01 01/20074.2.2 Measuring the D. O. concentrationNoteWhen measuring the concentration of test samples with a salt content

Operation Oxi 1970i18ba75691e01 01/20074.2.3 Measuring the D. O. saturationYou can measure the D. O. saturation as follows: 4.2.4 Automatic selection

Oxi 1970i Operation19ba75691e01 01/20074.2.5 AutoRead AR (drift control) and hold functionThe AutoRead function (drift control) checks the stability o

Oxi 1970i2ba75691e01 01/2007Accuracy whengoing to pressThe use of advanced technology and the high quality standard of our instruments are the result

Operation Oxi 1970i20ba75691e01 01/20074.2.6 Sensor with stirrer (StirrOx G)Connection Connect the 2-pole stirrer plug to the stirrer output of the me

Oxi 1970i Operation21ba75691e01 01/20074.3 CalibrationWhy calibrate? D. O. sensors age. This changes the slope of the D. O. sensor. Calibra-tion deter

Operation Oxi 1970i22ba75691e01 01/2007Printing thecalibration recordThe calibration protocol contains the calibration data of the current cal-ibratio

Oxi 1970i Operation23ba75691e01 01/20074.3.1 Calibrating with the air calibration vesselProceed as follows to calibrate the instrument:NoteThe sponge

Operation Oxi 1970i24ba75691e01 01/2007NoteIn chapter 6 WHAT TO DO IF... page 49, you will find the measures to take for error elimination. 7 Switch t

Oxi 1970i Operation25ba75691e01 01/20074.3.2 Calibrating via a comparison measurementProceed as follows to calibrate the instrument:1 Connect the D. O

Operation Oxi 1970i26ba75691e01 01/2007NoteIf the correction factor deviates from 1.000, the display of the measured value units flashes.8 Switch to t

Oxi 1970i Operation27ba75691e01 01/20074.3.3 Entering the salt content (salinity)A salt content correction is required in the oxygen concentration mea

Operation Oxi 1970i28ba75691e01 01/20074.4 SavingThe measuring instrument has an internal data memory. It can store up to 500 datasets. A complete dat

Oxi 1970i Operation29ba75691e01 01/2007Message StoFullStoFullStoFullStoFull This message appears when all of the 500 storage locations are occu-pied.Y

Oxi 1970i Contents3ba75691e01 01/2007Oxi 1970i - Contents1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.1 Di

Operation Oxi 1970i30ba75691e01 01/20074.4.2 Saving automaticallyThe save interval (Int 1) determines the chronological interval between automatic sa

Oxi 1970i Operation31ba75691e01 01/2007NoteThe AutoStore function is interrupted if you start other functions, e.g. output the data storage. After the

Operation Oxi 1970i32ba75691e01 01/20074.4.3 Outputting the data storageYou can output the contents of the data storage:z Stored data on the displayz

Oxi 1970i Operation33ba75691e01 01/2007NoteIf you want to search for a certain element (e.g. date), proceed as fol-lows:Outputting stored datato the i

Operation Oxi 1970i34ba75691e01 01/2007Sample printout:Outputting thecalibration dataon the display Device No.: 99990000No. 1: 09.03.02 17:10

Oxi 1970i Operation35ba75691e01 01/2007Outputting thecalibration protocolon the interfaceNoteYou will find a sample calibration protocol in PRINTING

Operation Oxi 1970i36ba75691e01 01/20074.4.4 Clearing the memoryWith this function, you can delete the stored data records. 500 storage locations will

Oxi 1970i Operation37ba75691e01 01/20074.5 Transmitting dataYou have the following possibilities of transmitting data:z One of the following options:–

Operation Oxi 1970i38ba75691e01 01/2007Setting theData transmissionintervalThe default setting for the interval is OFF. To start the data transmission

Oxi 1970i Operation39ba75691e01 01/20074.5.2 Recorder (analog output)You can transmit data to a recorder via the analog output. Connect the analog out

Contents Oxi 1970i4ba75691e01 01/20074.6 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 414.7 Reset . . . . . . .

Operation Oxi 1970i40ba75691e01 01/20074.5.3 PC/external printer (RS232 interface)Via the RS 232 interface, you can transmit the data to a PC or an ex

Oxi 1970i Operation41ba75691e01 01/20074.6 ConfigurationYou can adapt the measuring instrument to your individual require-ments. To do this, the follo

Operation Oxi 1970i42ba75691e01 01/2007Displaying theair pressureCalibration intervalAutoRange automaticselection of themeasurement range 6 Confirm wi

Oxi 1970i Operation43ba75691e01 01/2007Date and time11 Set the date of the current day with <▲> <▼>.12 Confirm with <RUN/ENTER>.The

Operation Oxi 1970i44ba75691e01 01/20074.7 Reset You can reset (initialize) the measurement parameters and the config-uration parameters separately fr

Oxi 1970i Operation45ba75691e01 01/2007Resetting themeasuring parametersResetting the configura-tion parameters1 Press the <RUN/ENTER> key and h

Operation Oxi 1970i46ba75691e01 01/2007

Oxi 1970i Maintenance, cleaning, disposal47ba75691e01 01/20075 Maintenance, cleaning, disposal5.1 MaintenanceThe measuring instrument is maintenance-f

Maintenance, cleaning, disposal Oxi 1970i48ba75691e01 01/2007Measuring instrument, Dispose of the measuring instrument without the rechargeable batter

Oxi 1970i What to do if...49ba75691e01 01/20076 What to do if...Display LoBat Instrument does notreact to keystroke Error message 0FL0FL0FL0FLError me

Oxi 1970i Overview5ba75691e01 01/20071OverviewThe portable Oxi 1970i measuring instrument enables you to carry out oxygen measurements rapidly and rel

What to do if... Oxi 1970i50ba75691e01 01/2007Error message E7E7E7E7AR flashescontinuously Measured value too lowMeasured value toohighDisplay totot

Oxi 1970i What to do if...51ba75691e01 01/2007Message Sto Ful lStoFullStoFullStoFull You want to know whichsoftware version is inthe instrument Cause

What to do if... Oxi 1970i52ba75691e01 01/2007

Oxi 1970i Technical data53ba75691e01 01/20077 Technical data7.1 General dataTest certificates cETLus, CEDimensions approx. 90 x 200 x 190 mmWeight app

Technical data Oxi 1970i54ba75691e01 01/2007Serial interface Automatic switchover when a PC or a printer is connected via the cable, AK 340/B or AK 32

Oxi 1970i Technical data55ba75691e01 01/2007Internal resistance < 5 Ohm (current limited to max. 0.2 mA out-put current)

Technical data Oxi 1970i56ba75691e01 01/2007Guidelinesand norms used7.2 Measuring ranges, resolutions, accuraciesMeasuring ranges,resolutionsNote: The

Oxi 1970i Technical data57ba75691e01 01/2007Air pressure correc-tionAutomatic through integratedpressure sensor in the range of 500 ... 1100 mbar

Technical data Oxi 1970i58ba75691e01 01/2007

Oxi 1970i Lists598ListsThis chapter provides additional information and orientation aids.Abbreviations The list of abbreviations explains the indicato

Overview Oxi 1970i6ba75691e01 01/2007NoteIf you need further information or application notes, you can obtain the following material from WTW:z Applic

Lists Oxi 1970i60AbbreviationsAR AutoRead (drift control)ARng Automatic range switchingMeasuring instrument measures with highest reso-lution°C Temper

Oxi 1970i Lists61GlossaryAdjusting To manipulate a measuring system so that the relevant value (e. g. the displayed value) differs as little as possib

Lists Oxi 1970i62Salinity The absolute salinity SA of seawater corresponds to the relationship of the mass of dissolved salts to the mass of the solut

Oxi 1970i Index63ba75691e01 01/2007IndexAAnalog output . . . . . . . . . . . . . . . . . . . 39Authorized use . . . . . . . . . . . . . . . . . . .

Index Oxi 1970i64ba75691e01 01/2007

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Oxi 1970i Overview7ba75691e01 01/20071.2 KeypadKey functionsSwitch measuring instrument on/off <ON/OFF> Select the measuring mode <M>:– D.

Overview Oxi 1970i8ba75691e01 01/20071.3 Socket fieldSensors You can use the following sensors with the Oxi 1970i:z Oxygen depth armaturez D. O. senso

Oxi 1970i Safety9ba75691e01 01/20072 SafetyThis operating manual contains basic instructions that you must follow during the commissioning, operation