ba75890e01 11/2009Lab 850 Operating manualLaboratory pH meter8422996pH°CTPLab 850
Overview Lab 85010ba75890e01 11/20091.3 Socket fieldCAUTIONOnly connect sensors to the meter that cannot return any voltages or currents that are not
Lab 850 Safety11ba75890e01 11/20092 SafetyThis operating manual contains basic instructions that you must follow during the commissioning, operation a
Safety Lab 85012ba75890e01 11/20092.1 Authorized useThis meter is authorized exclusively for pH and ORP measurements in the laboratory. The technical
Lab 850 Safety13ba75890e01 11/2009Safe operation If safe operation is no longer possible, the instrument must be taken out of service and secured agai
Safety Lab 85014ba75890e01 11/2009
Lab 850 Commissioning15ba75890e01 11/20093 Commissioning3.1 Scope of deliveryz Lab 850 laboratory meter z Power packz 4 batteries 1.5 V Mignon type AA
Commissioning Lab 85016ba75890e01 11/2009CAUTIONMake sure that the poles of the batteries are the right way round.The ± signs on the batteries must co
Lab 850 Operation17ba75890e01 11/20094 Operation4.1 Switching on the meterNoteThe meter has an energy saving feature to avoid unnecessary battery depl
Operation Lab 85018ba75890e01 11/20094.2 General operating principlesThis section contains basic information on the operation of the Lab 850. 4.2.1 Op
Lab 850 Operation19ba75890e01 11/20094.3 MeasuringPreparatory activities Perform the following preparatory activities when you want to measure:NoteInc
Lab 8502ba75890e01 11/2009Accuracy when going topressThe use of advanced technology and the high quality standard of our instruments are the result of
Operation Lab 85020ba75890e01 11/20094.3.1 Measuring the pH valueStability control SC(drift control)The stability control function (drift control) che
Lab 850 Operation21ba75890e01 11/20094.3.2 Measuring the ORPThe meter can, in conjunction with an ORP electrode, measure the ORP (mV) of a solution. N
Operation Lab 85022ba75890e01 11/20094.4 CalibrationWhy calibrate? pH electrodes age. This changes the zero point (asymmetry) and slope of the pH elec
Lab 850 Operation23ba75890e01 11/20098 Mettler Toledo TEC * 1.9954.0057.0029.20825 °C9 Fisher * 2.0074.0027.00410.00225 °C10 Fluka BS * 4.0066.9848.95
Operation Lab 85024ba75890e01 11/2009NoteThe buffer set is selected in the menu for measurement settings (see page 45).A list of the stored buffer set
Lab 850 Operation25ba75890e01 11/2009Displaying thecalibration dataYou can display the data of the last calibration (see page 36). Subsequently, you c
Operation Lab 85026ba75890e01 11/2009Preparatory activitiesCalError CalError< -30 or > 30... -62 or ... -50 Eliminate the error according to pag
Lab 850 Operation27ba75890e01 11/20094.4.1 Calibration interval (Int.C)The calibration interval and calibration evaluation are indicated on the displa
Operation Lab 85028ba75890e01 11/20094.4.2 Automatic calibration (AutoCal)For this procedure, use one, two or three buffer solutions of the selected b
Lab 850 Operation29ba75890e01 11/2009NoteHere you can cancel the calibration procedure with <MODE>. This corresponds to a single-point calibrati
Lab 8503ba75890e01 11/2009KONFORMITÄTSERKLÄRUNGDECLARATION OF CONFORMITYDÉCLARATION DE CONFORMITÉWir erklären in alleiniger Verantwortung, dass das Pr
Operation Lab 85030ba75890e01 11/2009NoteHere you can cancel the calibration procedure with <MODE>. This corresponds to a two-point calibration.
Lab 850 Operation31ba75890e01 11/20094.5 SavingThe pH meter has an internal data memory. It can store up to 800 datasets. A complete dataset consists
Operation Lab 85032ba75890e01 11/2009 Message StoFull This message appears when all of the 800 memory locations are occupied.When the memory is full,
Lab 850 Operation33ba75890e01 11/20094.5.2 Automatic storage at intervals (AutoStore)In order to store measured values automatically at certain time i
Operation Lab 85034ba75890e01 11/2009Switching off theautomatic storingfunctionYou can terminate the automatic storing function in the following ways:
Lab 850 Operation35ba75890e01 11/20094.5.3 Downloading the data memoryYou can download stored measurement datasets:z to the displayz to the interface
Operation Lab 85036ba75890e01 11/20094.5.4 Erasing the data memoryYou can erase all stored measurement datasets.4.5.5 Downloading calibration dataYou
Lab 850 Operation37ba75890e01 11/2009Download to display viacalibration menuWhile the calibration data is being displayed, you can:z press <OK>
Operation Lab 85038ba75890e01 11/20094.6 Transmitting dataThe meter has a RS232 interface (serial port).Via the interface, you can transmit data to a
Lab 850 Operation39ba75890e01 11/20094.6.1 Options for data transmissionVia the RS 232 interface, you can transmit data to a PC or an external printer
Lab 8504ba75890e01 11/2009
Operation Lab 85040ba75890e01 11/20094.6.2 Automatically downloading measurement datasets at intervalsIn order to automatically download to the interf
Lab 850 Operation41ba75890e01 11/2009Socket assignment(RS232)4.6.6 Operation with MultiLab pilotWith the aid of the MultiLab pilot software, you can r
Operation Lab 85042ba75890e01 11/20094.7 SettingsYou can adapt the meter to your individual requirements. The settings are done in the following menus
Lab 850 Operation43ba75890e01 11/20094.7.1 System settingsThe default setting is printed in bold. Baud rate (Baud) Switch-off interval(t.OFF)Baud ra
Operation Lab 85044ba75890e01 11/2009 Date and time4 Set the switch-off interval with <▲><▼>.5 Confirm with <OK>.Day.Month, the sett
Lab 850 Operation45ba75890e01 11/20094.7.2 Measurement settingsThese settings apply to calibration and measurement (the default setting is printed in
Operation Lab 85046ba75890e01 11/2009Display duringcalibration(bUFF)Unit of the value for theslope (SLO)4 Using <▲><▼>, select the display
Lab 850 Operation47ba75890e01 11/2009Unit of the value for thezero point (ASY)Resolution(rES)8 Using <▲><▼>, select the unit for the zero
Operation Lab 85048ba75890e01 11/2009Temperature unit (Unit)Calibrationinterval(Int.C) 12 Using <▲><▼>, toggle between °C and °F.13 Confir
Lab 850 Operation49ba75890e01 11/20094.7.3 Interval for automatic storing (AutoStore)After setting the interval for automatic storing the current meas
Lab 850 Contents5ba75890e01 11/2009Lab 850 - Contents1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71.1 Keypa
Operation Lab 85050ba75890e01 11/20094.7.4 Interval for automatic data transmissionThe interval for automatic data transmission serves to transmit the
Lab 850 Operation51ba75890e01 11/20094.8 Reset4.8.1 Resetting calibration valuesThis function resets the calibration values to the default condition.
Operation Lab 85052ba75890e01 11/20094.8.2 Resetting all meter settingsThis function resets to the default condition all meter settings including the
Lab 850 Maintenance, cleaning, disposal53ba75890e01 11/20095 Maintenance, cleaning, disposal5.1 MaintenanceThe only maintenance activity required is r
Maintenance, cleaning, disposal Lab 85054ba75890e01 11/20095.2 CleaningOccasionally wipe the outside of the meter with a damp, lint-free cloth. Disinf
Lab 850 What to do if...55ba75890e01 11/20096 What to do if...Error messageErr1Error messageErr2Error messageErr4Error messageCalErrorCause RemedypH e
What to do if... Lab 85056ba75890e01 11/2009No stable measuredvalue CalClock flashesDisplay,LoBat– Incorrect buffer solutions – Change calibration pro
Lab 850 What to do if...57ba75890e01 11/2009Obviously incorrectmeasured valuesInstrument does notreact to keystrokeYou want to know whichsoftwareversi
What to do if... Lab 85058ba75890e01 11/2009
Lab 850 Technical data59ba75890e01 11/2009Stand October 30, 2009Translation of the legally binding German version7 Technical data7.1 General dataDimen
Contents Lab 8506ba75890e01 11/20094.7.2 Measurement settings . . . . . . . . . . . . . . . . . . . . 454.7.3 Interval for automatic storing (AutoSto
Technical data Lab 85060ba75890e01 11/2009Stand October 30, 2009Translation of the legally binding German versionGuidelinesand norms usedEMC EC guidel
Lab 850 Technical data61ba75890e01 11/2009Stand October 30, 2009Translation of the legally binding German version7.2 Measuring ranges, resolution, acc
Technical data Lab 85062ba75890e01 11/2009Stand October 30, 2009Translation of the legally binding German version
Lab 850 Lists63ba75890e01 11/20098ListsThis chapter provides additional information and orientation aids.Abbreviations The list of abbreviations expla
Lists Lab 85064ba75890e01 11/2009Abbreviations°C Temperature unit °Celsius°F Temperature unit, °FahrenheitASY Zero point (asymmetry)AutoCal Automatic
Lab 850 Lists65ba75890e01 11/2009GlossaryAsymmetry see zero pointResolution Smallest difference between two measured values that can be displayed by a
Lists Lab 85066ba75890e01 11/2009Potentiometry Name of a measuring technique. The signal (depending on the measured parameter) of the electrode is the
Lab 850 Lists67ba75890e01 11/2009Trademarks usedTrademark Owner of the trademarkMerck Merck KGaAMettler Toledo Mettler ToledoFisher Fisher Scientific
Lists Lab 85068ba75890e01 11/2009
Lab 850 ListsIndex69ba75890e01 11/2009AAuthorized use . . . . . . . . . . . . . . . . . . . . . . 12AutoCal . . . . . . . . . . . . . . . . . . . .
Lab 850 Overview7ba75890e01 11/20091OverviewThe compact Lab 850 precision pH meter enables you to perform pH measurements rapidly and reliably. The La
Lists Lab 85070ba75890e01 11/2009
Lab 85071ba75890e01 11/2009Appendix: Firmware updateGeneral information With the Update_Labxxx_MxxxP program and a PC you can update the firmware of t
Lab 85072ba75890e01 11/2009
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Overview Lab 8508ba75890e01 11/20091.1 KeypadIn this operating manual, keys are indicated by brackets <..> . The key symbol (e.g. <OK>) in
Lab 850 Overview9ba75890e01 11/20091.2 DisplayFunction displayindicators888881888°C°FU pH%LoBatAutoStoreSCTPCalErrorTimeDay.MonthYearBaudNo.IdentmV/pH
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