Operating manual Lab 860 69 24 pH 92 8 °C La TP b8 60 Laboratory pH meter ba75554e05 01/2010
Lab 860 Accuracy when going to press Warranty The use of advanced technology and the high quality standard of our instruments are the result of continuous development. This may result in differences between this operating manual and your instrument. Also, we cannot guarantee that there are absolutely no errors in this manual. Therefore, we are sure you will understand that we cannot accept any legal claims resulting from the data, figures or descriptions.
Lab 860 KONFORMITÄTSERKLÄRUNG DECLARATION OF CONFORMITY DÉCLARATION DE CONFORMITÉ Wir erklären in alleiniger Verantwortung, dass das Produkt We declare under our sole responsibility that the product Nous déclarons sous notre seule responsabilité que le produit pH-Meter Lab 860 pH meter Lab 860 pH-mètre Lab 860 auf das sich diese Erklärung bezieht, übereinstimmt mit den Angaben im Kapitel to which this declaration relates is in conformity with the specifications in the chapter auquel se réfère cett
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Lab 860 Contents Lab 860 - Contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.1 1.2 1.3 2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.1 2.2 3 4.3 4.4 4.5 4.6 01/2010 Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents Lab 860 4.7 4.8 5 43 44 46 50 51 51 52 Maintenance, cleaning, disposal . . . . . . . . . . . . . . . . . 53 5.1 5.2 5.3 5.4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.1 Replacing the batteries . . . . . . . . . . . . . . . . . . . . Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Disposal . . . . . . . . . . . . . . . . . . . . . . .
Lab 860 Overview 1 Overview The compact Lab 860 precision pH meter enables you to perform pH measurements rapidly and reliably. The Lab 860 provides the maximum degree of operating comfort, reliability and measuring certainty for all applications. The proven calibration procedures and special stability control function (SC) support your work with the pH meter.
Overview Lab 860 1.1 Keypad MODE CAL STO RCL SC In this operating manual, keys are indicated by brackets <..> . The key symbol (e.g. ) indicates a keystroke in this operating manual.
Lab 860 Overview 1.2 Display Status display indicator U pH BUFFER SET 18888 Time Baud No. Day.
Overview Lab 860 1.3 Socket field 1 2 3 4 5 6 Connectors: 1 pH electrode 2 Reference electrode 3 Temperature sensor 4 USB interface 5 Power pack 6 RS 232 interface CAUTION Only connect sensors to the meter that cannot return any voltages or currents that are not allowed (> SELV and > current circuit with current limiting). Almost all sensors - in particular SI Analytics GmbH sensors fulfill these conditions.
Lab 860 Safety 2 Safety This operating manual contains basic instructions that you must follow during the commissioning, operation and maintenance of the meter. Consequently, all responsible personnel must read this operating manual before working with the meter. The operating manual must always be available within the vicinity of the instrument. Target group Safety instructions The meter was developed for work in the laboratory.
Safety Lab 860 2.1 Authorized use This meter is authorized exclusively for pH and ORP measurements in the laboratory. The technical specifications as given in chapter 7 TECHNICAL DATA (page 59) must be observed. Only the operation and running of the meter according to the instructions given in this operating manual is authorized. Any other use is considered unauthorized. 2.
Lab 860 Safety Safe operation If safe operation is no longer possible, the instrument must be taken out of service and secured against inadvertent operation! Safe operation is no longer possible if the meter: z has been damaged in transport z has been stored under adverse conditions for a lengthy period of time z is visibly damaged z no longer operates as described in this manual. If you are in any doubt, please contact the supplier of the instrument.
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Lab 860 Commissioning 3 Commissioning 3.1 Scope of delivery z Lab 860 laboratory meter z Power pack z 4 batteries 1.5 V Mignon type AA z USB cable with A plug and B plug z Transparent cover z Operating manual z CD-ROM with USB driver 3.2 Initial commissioning Perform the following activities: z Insert batteries z Switch on the meter z Set the date and time z Connect the power pack (for line power operation only).
Commissioning Lab 860 1 CAUTION Make sure that the poles of the batteries are the right way round. The ± signs on the batteries must correspond to the ± signs in the battery compartment. Only use leakproof alkaline manganese batteries. Switching on the meter Setting the date and time Connecting the power pack 1 Switch on the meter with . A display test is briefly displayed. 2 See page 44. You can either operate the measuring instrument with batteries or with the plug-in power supply.
Lab 860 Operation 4 Operation 4.1 Switching on the meter 1 Place the meter on a flat surface and protect it from intense light and heat. 2 Press the key. A display test is briefly displayed. Subsequently, the meter switches to the measuring mode (measured value display). Note The meter has an energy saving feature to avoid unnecessary battery depletion during battery operation.
Operation Lab 860 4.2 General operating principles This section contains basic information on the operation of the Lab 860. 4.2.
Lab 860 Operation 4.3 Preparatory activities Measuring Perform the following preparatory activities when you want to measure: 1 Connect an electrode to the meter. 2 Adjust the temperature of the buffer solutions or test solutions, or measure the current temperature, if you measure without a temperature sensor. 3 Calibrate or check the meter with the electrode. 4 Select the measured parameter with . Note Incorrect calibration of pH electrodes leads to incorrect measured values.
Operation Lab 860 4.3.1 Measuring the pH value 1 Perform the preparatory activities according to page 19. 2 Immerse the pH electrode in the test sample. 3 Using , scroll as necessary until the measured parameter pH is displayed. pH 6992 248 Stability control SC (drift control) TP °C The stability control function (drift control) checks the stability of the measurement signal. The stability has a considerable effect on the reproducibility of the measured value.
Lab 860 Operation 4.3.2 Measuring the ORP The meter can, in conjunction with an ORP electrode, measure the ORP (mV) of a solution. 1 Perform the preparatory activities according to page 19. 2 Immerse the ORP electrode in the test sample. 3 If necessary, call up the measured parameter U with . 4 Wait for a stable measured value. U 486 213 mV TP °C Note ORP electrodes are not calibrated. However, you can check ORP electrodes using a test solution.
Operation Lab 860 4.4 Why calibrate? When do you have to calibrate? Buffer sets for calibration 22 Calibration pH electrodes age. This changes the zero point (asymmetry) and slope of the pH electrode. As a result, an inexact measured value is displayed. Calibration determines the current values of the zero point and slope of the electrode and stores them. Thus, you should calibrate at regular intervals. The calibration data is stored in the meter.
Lab 860 Operation No. Buffer set* 8 Mettler Toledo TEC * 9 Fisher * 10 01/2010 at 1.995 4.005 7.002 9.208 25 °C 2.007 4.002 7.004 10.002 25 °C Fluka BS * 4.006 6.984 8.957 25 °C 11 Radiometer * 1.678 4.005 7.000 9.180 25 °C 12 Baker * 4.006 6.991 10.008 25 °C 13 Metrohm * 3.996 7.003 8.999 25 °C 14 Beckman * 4.005 7.005 10.013 25 °C 15 Hamilton Duracal * 4.005 7.002 10.013 25 °C 16 Precisa * 3.996 7.003 8.
Operation Lab 860 Note The buffer set is selected in the menu for measurement settings (see page 46). A list of the stored buffer sets can be downloaded to the interface (Set 1 ... 16) with while selecting the buffer set in the menu for measurement settings. _ Calibration points Calibration can be performed using one to five buffer solutions in any order (single-point to five-point calibration).
Lab 860 Operation Displaying the calibration data You can display the data of the last calibration (see page 36). Subsequently, you can transmit the displayed calibration data to the interface, e. g. to a printer or PC, with the key. _ Note The calibration record is automatically transmitted to the interface after calibrating. Sample record: 16.09.2005 08:53:54 Lab 860 02320025 Calibration pH Cal time: 16.09.2005 08:22:14 Cal interval:7d AutoCal TEC Buffer 1 2.000 Buffer 2 4.010 Buffer 3 7.
Operation Lab 860 CalClock Calibration record CalError CalError Zero point [mV] Slope [mV/pH] < -30 or > 30 ... -62 or ... -50 Eliminate the error according to page 55 Preparatory activities 26 1 Switch on the meter with . 2 Connect a pH electrode to the meter. 3 Keep the buffer solutions ready. 4 Adjust the temperature of the solutions and measure the current temperature if the measurement is made without temperature sensor.
Lab 860 Operation 4.4.1 Calibration interval (Int.C) The calibration interval and calibration evaluation are indicated on the display as the CalClock. CalClock The remaining time of the calibration interval is indicated by the segmented ring around the calibration evaluation. This segmented ring reminds you to calibrate regularly. After the specified calibration interval (Int.C) has expired, the outer ring of the CalClock flashes. It is still possible to measure.
Operation Lab 860 4.4.2 Automatic calibration (AutoCal) Use any one to five buffer solutions of the selected buffer set. Note The steps 2, 6 and 10 are not necessary if you use a temperature sensor. 1 Start the calibration with . The number of the specified buffer set is displayed (SET 1 ... 16). The first buffer (BUFFER 1) of the buffer set (SET_x) is requested. SET 1 AutoCal 28 pH BUFFER 1 258 TP °C 2 If necessary, set the temperature of the buffer solution with <▲><▼>.
Lab 860 Operation SET 1 AutoCal pH BUFFER 2 258 TP °C Note Here you can cancel the calibration procedure with . This corresponds to a single-point calibration. The value of the zero point (Asy) is displayed for 10 seconds, then the value of the slope (Slo) is displayed for 10 seconds. After this the meter switches to the measuring mode. Continue with two-point calibration 5 Thoroughly rinse the electrode with distilled water.
Operation Lab 860 Note Here you can cancel the calibration procedure with . This corresponds to a two-point calibration. The value of the zero point (Asy) is displayed for 10 seconds, then the value of the slope (Slo) is displayed for 10 seconds. After this the meter switches to the measuring mode. Continue with threepoint to five-point calibration 9 Thoroughly rinse the electrode with distilled water. 10 If necessary, set the temperature of the third buffer solution with <▲><▼>.
Lab 860 Operation 4.5 Saving The pH meter has an internal data memory. It can store up to 800 datasets. A complete dataset consists of: z Date/time z Memory location number z ID number z Measured value z Temperature z Temperature measuring procedure (manual or automatic) You can transmit measured values (datasets) to the data memory in two ways: z Store manually () z Switch on AutoStore (Int.1) ().
Operation Lab 860 pH 6992 Ident 000 1 Store Message StoFull 3 Using <▲><▼>, enter the required ID number (1 ... 9999). 4 Confirm with . The dataset is stored. The meter switches to the measuring mode. This message appears when all of the 800 memory locations are occupied. When the memory is full, you can: 32 z press to store the current measured value.
Lab 860 Operation 4.5.2 Automatic storage at intervals (AutoStore) In order to store measured values automatically at certain time intervals, set the storage interval (Int.1). Setting the save interval The default setting for the storage interval (Int 1) is OFF. By this, the AutoStore function is switched off.
Operation Lab 860 4 Confirm with . Ident, the entry of the ID number is displayed. Ident 000 1 5 Set the required ID number with <▲><▼>. 6 Confirm with . The meter switches to the measured value display and starts the measuring and storing procedure. AutoStore flashes on the display. 7 As soon as all of the 800 memory locations are occupied, AutoStore is terminated (Int.1 = OFF).
Lab 860 Operation 4.5.3 Downloading the data memory You can download stored measurement datasets: z to the display z to the interface (page 39) Download to the display 1 Open the memory menu with . 2 If necessary, scroll with until Sto disp (measurement datasets) is displayed. 3 Press to display the dataset that was last stored. The memory location of the dataset is displayed for approx. 2 s, then the respective temperature appears.
Operation Lab 860 4.5.4 Erasing the data memory You can erase all stored measurement datasets. 1 Open the memory menu with . 2 If necessary, scroll with until Sto disp or Sto prt is displayed. 3 Press to erase the entire contents of the memory. or Return to the measured value display with . The stored data is retained. 4.5.5 _> to display the Clr All function.
Lab 860 Operation z press to display further calibration data (date, zero point, slope) z press <▲><▼> to switch over the unit of the zero point (Asy) (while the zero point is being displayed) z press <▲><▼> to switch over the unit of the slope (Slo) (while the slope is being displayed) z press _ Press to display the calibration data.
Operation Lab 860 4.6 Transmitting data The meter has two interfaces: z RS232 interface (serial port) z USB interface (device) Via both interfaces, you can transmit data to a PC and update the meter software. The meter is supplied with power via the USB interface. The RS232 interface enables to transmit data to an external printer. Note The relevant interface cable has to be connected if you want to download data to an interface (USB or RS232).
Lab 860 Operation 4.6.1 Options for data transmission Via the USB interface you can transmit data to a PC. Via the RS 232 interface, you can transmit data to a PC or an external printer. The following table shows which data are transmitted to the interface in which way: Data Control Operation / description Current measured values Manual z With . z Simultaneously with every manual storage process (see page 31). _ Automatic, at intervals z With .
Operation Lab 860 4.6.2 Automatically downloading measurement datasets at intervals In order to automatically download to the interface measured values at certain time intervals, set the download interval (Int.2). Setting the download interval The default setting for the download interval (Int 2) is OFF. To switch the function on, set an interval (5 s, 10 s, 20 s, 30 s, 1 min, 2 min, 5 min, 10 min, 20 min, 30 min, 60 min): Press <▼>.
Lab 860 Operation 3 Set up the following transmission data at the PC/printer: – Baud rate: selectable from 1200, 2400, 4800, 9600, – Handshake: RTS/CTS + Xon/Xoff – PC only: – Parity: none – Data bits: 8 – Stop bits: 2 Socket assignment (RS232) 3 4 2 6 5 1 RS 232 4.6.6 1* 2 RxD 3 TxD 4* 5 SGnd 6 CTS * not used USB interface (device) Connect the interface to the PC via the supplied Z875 USB cable. The data output automatically switches to USB. The RS232 interface is deactivated.
Operation Lab 860 operating manual.
Lab 860 Operation 4.7 Settings You can adapt the meter to your individual requirements. The settings are done in the following menus: z System settings () – Baud rate (Baud) – Switch-off interval (t.Off) – Date (Day.Month) – Date (Year) – Time (Time) z Settings for calibration and measurement () – Number of the buffer set for pH calibration (Set 1 ...
Operation Lab 860 4.7.1 System settings The default setting is printed in bold. Baud rate (Baud) 1200, 2400, 4800, 9600 Switch-off interval (t.Off) 10, 20, 30, 40, 50 min, 1, 2, 3, 4, 5, 10, 15, 20, 24 h Date (Day.Month) Any Date (Year) Any Time (Time) Any 1 _>. Open the menu for system settings with <▼> . 3 Confirm with . t.
Lab 860 Operation 4 Set the switch-off interval with <▲><▼>. 5 Confirm with . Day.Month, the setting of the date is displayed. The day display flashes. Date and time Day.Month ba75554e05 01/2010 300 3 6 Set the date of the current day with <▲><▼> . 7 Confirm with . The month display flashes. 8 Set the current month with <▲><▼> . 9 Confirm with . Year, the setting of the year is displayed. 10 Set the year with <▲><▼> . 11 Confirm with .
Operation Lab 860 4.7.2 Measurement settings These settings apply to calibration and measurement (the default setting is printed in bold). Buffer set for pH calibration (SET) Number of the buffer set for pH calibration (SET) 1 ... 16 Display during calibration (BUFFER) pH (buffer nominal value), U (electrode voltage) Unit of the value for the slope (SLO) %, mV/pH Unit of the value for the zero point (ASY) pH, mV Resolution (rES) HI (0.001), Lo (0.
Lab 860 Operation Display during calibration (bUFF) pH b UF F AutoCal pH 4 Using <▲><▼>, select the display during calibration pH or U. 5 Confirm with . SLO, the unit of the value for the slope (mV/pH or %) is displayed. Unit of the value for the slope (SLO) pH SL O ba75554e05 01/2010 mV/pH 6 Using <▲><▼>, select the unit for the slope. 7 Confirm with . ASY, the unit of the value for the zero point (mV or pH) is displayed.
Operation Lab 860 Unit of the value for the zero point (ASY) pH ASY mV 8 Using <▲><▼>, select the unit for the zero point. 9 Confirm with . rES, the setting of the resolution is displayed. Resolution (rES) pH res HI 48 10 Using <▲><▼>, toggle between Hi (0.001)and Lo (0.01). 11 Confirm with . Unit, the setting of the unit of the temperature value is displayed.
Lab 860 Operation Temperature unit (Unit) Unit oC Using <▲><▼>, toggle between °C and °F. 13 Confirm with . Int.C, the setting of the calibration interval is displayed. Time INT C AutoCal 01/2010 °C 12 Calibration interval (Int.C) ba75554e05 TP d 7 14 Set the interval with <▲><▼>. 15 Confirm with . The measurement settings are completed. The meter switches to the measuring mode.
Operation Lab 860 4.7.3 Interval for automatic data transmission The interval for automatic data transmission serves to transmit the current measurement dataset to the interface at the specified interval. Data transmission interval (Int.2) 1 OFF, 5 s, 10 s, 20 s, 30 s, 1 min, 2 min, 5 min, 10 min, 20 min, 30 min, 60 min _ Press to open the setting for the transmission interval. Int.2, the setting of the transmission interval is displayed.
Lab 860 Operation 4.8 Reset 4.8.1 Resetting calibration values This function resets the calibration values to the default condition. All other meter settings are retained. Calibration values in the default condition Zero point pH 7.000 (0 mV) Slope 100 % (-59.2 mV/pH) Note The measuring system is not calibrated after a reset. Before measuring recalibrate the meter. Resetting calibration values 1 _ Press to open the menu for the reset of the calibration data. Init.C is displayed.
Operation Lab 860 4.8.2 Resetting all meter settings This function resets to the default condition all meter settings including the calibration values. The corresponding values are given on the following pages: Resetting the meter settings Calibration values page 51 System settings page 44 Measurement settings page 46 1 Switch on the meter with . The display test appears briefly on the display.
Lab 860 Maintenance, cleaning, disposal 5 Maintenance, cleaning, disposal 5.1 Maintenance The only maintenance activity required is replacing the batteries. Note For maintenance of the electrodes refer to the relevant operating manuals. 5.1.1 Replacing the batteries 1 Open the battery compartment (1) on the underside of the meter. 2 Remove the four batteries from the battery compartment. 3 Place four new batteries (type Mignon AA) in the battery compartment.
Maintenance, cleaning, disposal Lab 860 5.2 Cleaning Occasionally wipe the outside of the meter with a damp, lint-free cloth. Disinfect the housing with isopropanol as required. CAUTION The housing is made of synthetic material (ABS). Thus, avoid contact with acetone or similar detergents that contain solvents. Remove any splashes immediately. 5.3 Packing This meter is sent out in a protective transport packing. We recommend: Keep the packing material.
Lab 860 What to do if... 6 Error message Err1 Error message Err2 What to do if...
What to do if... Lab 860 Cause No stable measured value Remedy – Incorrect buffer solutions – Change calibration procedure – Buffer solutions too old – Use only once.
Lab 860 What to do if...
What to do if...
Lab 860 Technical data Translation of the legally binding German version Dimensions Weight Mechanical structure Stand October 30, 2009 7 Technical data 7.1 General data approx. 240 x 190 x 80 mm approx. 1.0 kg (without power pack, without stand) Type of protection IP 43 Electrical safety Protective class III Test certificates cETLus Ambient conditions Storage - 25 °C ... + 65 °C Operation 0 °C ... + 55 °C Climatic class 2 Batteries 4 x 1.
Technical data Lab 860 Translation of the legally binding German version Guidelines and norms used 60 Stand October 30, 2009 EMC EC guideline 2004/108/EC EN 61326-1 Class B FCC Class A Instrument safety EC guideline 2006/95/EC EN 61010-1 ANSI/UL 61010-1 CAN/CSA-C22.2 No.
Lab 860 Technical data Translation of the legally binding German version 7.2 Measuring ranges, resolution Manual temperature input Accuracy (± 1 digit) Stand October 30, 2009 Measuring ranges, resolution, accuracy Variable Measuring range Resolution pH - 2.000 ... + 19.999 - 2.00 ... + 19.99 0.001 0.01 U [mV] - 999.9 ... + 999.9 - 2000 ... + 2000 0.1 1 T [°C] - 5.0 ... + 120.0 0.1 T [°F] + 23.0 ... + 248.0 0.1 Variable Range Increment Tmanual [°C] - 25 ...
Technical data Translation of the legally binding German version 62 Lab 860 Stand October 30, 2009 ba75554e05 01/2010
Lab 860 Lists 8 Lists This chapter provides additional information and orientation aids. Abbreviations The list of abbreviations explains abbreviations that appear on the display or when dealing with the instrument. Specialist terms The glossary briefly explains the meaning of the specialist terms. However, terms that should already be familiar to the target group are not described here. Trademarks used The list comprises the trademarks used in the present document and their owners.
Lists Lab 860 Abbreviations 64 °C Temperature unit °Celsius °F Temperature unit, °Fahrenheit ASY Zero point (asymmetry) AutoCal Automatic calibration using a selected buffer set Cal Calibration CalError Error message (see WHAT TO DO IF...) disp Display Data memory is displayed Err1 Overflow Display range exceeded Err2, Err4 Error message (see WHAT TO DO IF...
Lab 860 Lists Glossary Asymmetry see zero point Resolution Smallest difference between two measured values that can be displayed by a meter. AutoRange Name of the automatic selection of the measuring range. Junction The junction is a porous body in the housing wall of reference electrodes or electrolyte bridges. It arranges the electrical contact between two solutions and makes the electrolyte exchange more difficult. The expression, junction, is also used for ground or junctionless transitions.
Lists Lab 860 Potentiometry Name of a measuring technique. The signal (depending on the measured parameter) of the electrode is the electrical potential. The electrical current remains constant. ORP voltage The ORP is caused by oxidizing or reducing substances dissolved in water if these substances become effective on an electrode surface (e. g. a gold or platinum surface). Reset Restoring the original condition of all settings of a measuring system.
Lab 860 Lists Trademarks used ba75554e05 01/2010 Trademark Owner of the trademark Merck Merck KGaA Mettler Toledo Mettler Toledo Fisher Fisher Scientific Company Fluka Fluka AG Radiometer Radiometer Baker Mallinckrodt Baker, Inc. Metrohm Metrohm AG Beckman Beckman Instruments, Inc.
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Lab 860 Lists Index A O Authorized use . . . . . . . . . . . . . . . . . . . . . . 12 AutoCal . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 AutoStore . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Operation location . . . . . . . . . . . . . . . . . . . 17 Operational safety . . . . . . . . . . . . . . . . . . . 12 ORP electrode . . . . . . . . . . . . . . . . . . . . . . 21 ORP voltage . . . . . . . . . . . . . . . . . . . . . . . 21 B Battery compartment . . . . . . . . . . . . .
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Lab 860 Appendix: Firmware update General information With the Update_Labxxx_MxxxP program and a PC you can update the firmware of the Lab 860 to the newest version. For the update you can connect the meter to a PC via the USB or RS232 interface. For the update via the USB interface, the following is required: z a free USB interface (virtual COM port) on your PC z the driver for the USB interface (installation see page 41) z the Z875 USB cable (included in the scope of delivery of the Lab 860).
Lab 860 4 To go on, follow the instructions of the program. During the programming process, a corresponding message and a progress bar (in %) appear. The programming process takes approx. two minutes. A terminatory message is displayed after a successful programming process. The firmware update is now completed. 5 Disconnect the meter from the PC. The instrument is ready for operation.
SI Analytics GmbH Postfach 2443 D-55014 Mainz Hattenbergstr. 10 D-55122 Mainz Telefon +49 (0) 61 31/66 5111 Telefax +49 (0) 61 31/66 5001 Email: support@si-analytics.com Internet: www.si-analytics.
