SCHOTT handylab multi 12 Operating Manual
  1. Manuals
  2. Brands
  3. SCHOTT Manuals
  4. Measuring Instruments
  5. handylab multi 12
  6. Operating manual
SCHOTT handylab multi 12 Operating Manual

SCHOTT handylab multi 12 Operating Manual

Ph/dissolved oxygen/conductivity pocket meter
Hide thumbs Also See for handylab multi 12:
Table of Contents

Advertisement

Quick Links

Download this manual
Operating manual
handylab multi 12
pH/Dissolved Oxygen/Conductivity
Pocket Meter
ba75371e03
11/2009

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the handylab multi 12 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for SCHOTT handylab multi 12

Summary of Contents for SCHOTT handylab multi 12

  • Page 1 Operating manual handylab multi 12 pH/Dissolved Oxygen/Conductivity Pocket Meter ba75371e03 11/2009...
  • Page 2 Cond 330i/340i Accuracy when The use of advanced technology and the high quality standard of our going to press instruments are the result of continuous development. This may result in differences between this operating manual and your instrument. Al- so, we cannot guarantee that there are absolutely no errors in this man- ual.

  • Page 3: Table Of Contents

    List of contents handylab multi 12 - List of contents Overview ......... 5 General features.
  • Page 4 List of contents handylab multi 12 Transmitting data ........54 4.7.1...

  • Page 5: Overview

    The compact precision handheld meter handylab multi 12 enables you to carry out pH measurements, dissolved oxygen (D. O.) measurements and conductivity measurements quickly and reliably. The handylab multi 12 handheld meter provides the maximum degree of op- erating comfort, reliability and measuring certainty for all applications. ®...

  • Page 6: Keypad

    Overview handylab multi 12 Keypad RUN/ENTER Key functions Select the measured variable <M>: – pH value / ORP voltage – D. O. concentration / D. O. saturation – Conductivity / salinity Save a measured value <STO> Switch measuring instrument on/off <ON/OFF>...

  • Page 7: Display

    12 Overview Display Status display Sensor symbol mV/pH % mg/l Meas. value display mbar 1/ cm Sal Time Baud Function and ° Day.Month No. ° Year Ident temperature display Tref20 AutoCal DIN Auto Store Tref25 LoBat ARng AutoCal TEC Jack field D.

  • Page 8: Operating Structure

    Overview handylab multi 12 1.5 Operating structure The following overview diagram shows which keys you have to press to se- lect between the different measuring modes: Note When a D. O. probe or a conductivity measuring cell with a temperature...

  • Page 9: Technical Data

    12 Overview Technical data Dimensions Length [mm] and weight Width [mm] Height [mm] Weight [kg] approx. 0.3 Mechanical struc- Type of protection IP 66 ture Electrical safety Protective class Test certificates cETLus, CE Ambient condi- Storage - 25 °C ... + 65 °C...
  • Page 10 Overview handylab multi 12 mg/l Measuring range II 0 ... 90.0l 0 ... 600 Resolution Precision of Concentration ± 0.5 % of measured value Oxi (± 1 digit) at ambient temperature of 5 °C ... 30 °C Saturation ± 0.5 % of measured value when measuring in the range of ±...

  • Page 11: Ba75371E03

    12 Overview Cell constant, C [cm 0.450 ... 0.500 calibrating Reference temper- Tref Can be set to 20 °C or 25 °C ature of Conduc- tivity Serial interface Automatic switchover if a PC or printer is connected. Type...

  • Page 12: Ba75371E03

    Overview handylab multi 12 Applicable EC guideline 2004/108/EC guidelines and EN 61326-1 norms EN 61000-3-2 EN 61000-3-3 FCC Class A Instrument safety EC guideline 2006/95/EC EN 61010-1 ANSI/UL 61010-1 CAN/CSA-C22.2 No. 61010-1 Climatic class VDI/VDE 3540 Type of protection EN 60529...

  • Page 13: Safety

    12 Safety Safety This operating manual contains basic instructions that you must follow during the commissioning, operation and maintenance of the measuring instrument. Consequently, all responsible personnel must read this operating manual carefully before working with the measuring system. The operating manual must always be available within the vicinity of the measuring system.

  • Page 14: General Safety Instructions

    Safety handylab multi 12 General safety instructions This instrument is built and inspected according to the relevant guidelines and norms for electronic measuring instruments (see section 1.6 T ECHNICAL DATA It left the factory in a safe and secure technical condition.

  • Page 15: Commissioning

    12 Commissioning Commissioning Scope of delivery handylab multi 12 handheld meter Operating manual and short operating manual 4 batteries, 1.5 V Mignon type AA (in the instrument) Initial commissioning Perform the following activities: Set the date and time...
  • Page 16 Commissioning handylab multi 12 Connecting the You can either operate the measuring instrument with batteries or with the plug-in power sup- plug-in power supply. The plug-in power supply supplies the measuring in- strument with low voltage (12 VDC). This saves the batteries.

  • Page 17: Operation

    12 Operation Operation Switching on the measuring instrument Press the <ON/OFF> key. The display test appears briefly on the display. After this, the measuring instrument automatically switches to the measuring mode. Measuring mode Connected sensor Measuring mode when switching on...

  • Page 18: Ph Value / Orp Voltage

    Operation handylab multi 12 pH value / ORP voltage 4.2.1 General information Preparatory Perform the following preparatory activities when you want to measure: activities Connect the pH electrode to the measuring instrument. If necessary, press the <M> key repeatedly until the status dis- play pH (pH measurement) or U (measurement of the ORP voltage) appears.
  • Page 19 12 Operation Temperature You can perform pH measurements with or without a temperature probe as measurement in well as with the temperature probe of an oxygen sensor or a conductivity pH measurements measuring cell. The measuring instrument recognizes which sensors are connected and switches automatically to the correct mode for the tempera- ture measurement.

  • Page 20: Measuring The Ph Value

    Operation handylab multi 12 4.2.2 Measuring the pH value Perform the preparatory activities according to section 4.2.1. Immerse the pH electrode in the test sample. Press the <▲> <▼> keys until pH appears in the status display. The pH value appears on the display.

  • Page 21: Measuring The Orp Voltage

    12 Operation Start AutoRead with <RUN/ENTER>. AR flashes until a stable measured value is reached. This measured value is transmitted to the interface. If necessary, start the next AutoRead measurement with <RUN/ENTER>. To terminate the AutoRead function: Press the <AR> key.

  • Page 22: Ph Calibration

    Operation handylab multi 12 4.2.4 pH calibration Why calibrate? pH electrodes age. This changes the asymmetry (zero point) and slope of the pH electrode. As a result, an inexact measured value is displayed. Calibration determines the current values of the asymmetry and slope of the electrode and stores them in the measuring instrument.
  • Page 23 12 Operation Sample printout: CALIBRATION PROTOCOL 02.03.01 14:19 Device No.: 12345678 Calibration pH Cal time: 01.03.01 / 15:20 Cal interval: AutoCal TEC Tauto Buffer 1 2.00 Buffer 2 4.01 Buffer 3 7.00 * Buffer 4 10.01 184.1 mV 25.0°C...
  • Page 24 Operation handylab multi 12 Preparatory Connect the pH electrode to the measuring instrument. activities If necessary, press the <M> key repeatedly until the status dis- play pH (pH measurement) or U (measurement of the ORP voltage) appears. Keep the buffer solutions ready.
  • Page 25 12 Operation If required, enter the temperature of the first buffer solution, while keeping the <RUN/ENTER> key depressed, using <▲> <▼>. Immerse the pH electrode in the first buffer solution. Press the <RUN/ENTER> key. The AR display indicator flashes.
  • Page 26 Operation handylab multi 12 Press the <RUN/ENTER> key. The AR display indicator flashes. The electrode voltage (mV) or the buffer nominal value ap- pears on the display. Example: mV/pH mV/pH mg/l mg/l mbar mbar 1/ cm Time Baud Time Baud °...

  • Page 27: Dissolved Oxygen

    12 Operation Dissolved oxygen 4.3.1 General information You can measure the following variables: D. O. concentration D. O. saturation The measuring instrument is supplied with the following functions: AutoRange (automatic switchover of the measurement range), The AutoRead function (drift control) for checking the stability of the mea- surement signal.

  • Page 28: Measuring The D. O. Concentration

    Operation handylab multi 12 4.3.2 Measuring the D. O. concentration When measuring the concentration of test samples with a salt content of more than 1 g/l, a salinity correction is required. Note How to enter the current salt content is described in section 4.3.6 S ALT CON on page 34.

  • Page 29: Measuring The D. O. Saturation

    12 Operation TDS UpH mV/pH mg/l mbar Time Baud ° Day.Month No. ° Year Ident Tref25 Tref20 AutoCal DIN Auto Store ARng LoBat AutoCal TEC While pressing the <RUN/ENTER> key, switch off the salt con- tent correction with <▼>. The SAL display indicator is no longer displayed.

  • Page 30: Autoread Ar (Drift Control)

    Operation handylab multi 12 4.3.4 AutoRead AR (Drift control) The AutoRead function (drift control) checks the stability of the measurement signal. The stability has a considerable impact on the reproducibility of the measured values. Call up the measuring mode with <M> and/or <▲> <▼> .

  • Page 31: Calibration

    12 Operation 4.3.5 D. O. calibration Why calibrate? D. O. probes age. This changes the slope of the D. O. probe. Calibration de- termines the current slope of the probe and stores this value in the instru- ment.
  • Page 32 Operation handylab multi 12 Probe evaluation After the calibration, the measuring instrument evaluates the current status of the probe against the relative slope. The evaluation appears on the dis- play. The relative slope has no effect on the measuring accuracy. Low values indicate that the electrolyte will soon be depleted and the probe will have to be regenerated.
  • Page 33 12 Operation TDS UpH mV/pH mg/l mbar Time Baud ° Day.Month No. ° Year Ident Tref25 Tref20 Auto Store AutoCal DIN LoBat ARng AutoCal TEC Press the <RUN/ENTER> key. AutoRead is active, AR flashes. TDS UpH mV/pH mg/l...

  • Page 34: Salt Content Correction

    (range 0.0 - 70.0) and to switch on the salinity correction. Note With the handylab multi 12 handheld meter, you can measure the salinity. How to proceed is described in section 4.4.3 M EASURING THE SALINITY page 37.

  • Page 35: Conductivity

    12 Operation Conductivity 4.4.1 General information Caution When connecting an earthed PC/printer, measurements cannot be per- formed in earthed media as incorrect values would result. The RS232 interface is not galvanically isolated. Preparatory Perform the following preparatory activities when you want to measure:...
  • Page 36 Operation handylab multi 12 Checking the Press the <RCL> key repeatedly until CAL disp appears on the cell constant display. mV/pH % mg/l mbar Time Baud ° Day.Month No. ° Year Ident Tref25 Tref20 AutoCal DIN Auto Store ARng LoBat AutoCal TEC Press the <RUN/ENTER>...

  • Page 37: Measuring The Conductivity

    12 Operation 4.4.2 Measuring the conductivity You can carry out the conductivity measurements as follows: Perform the preparatory activities according to section 4.4.1 page 35. Immerse the conductivity measuring cell in the test sample. ӕ Press the < ▲> <▼> keys until in the status display, and the unit μS/cm appears.

  • Page 38: Autoread Ar (Drift Control)

    Operation handylab multi 12 4.4.4 AutoRead AR (Drift control) The AutoRead function (drift control) checks the stability of the measurement signal. The stability has a considerable effect on the reproducibility of the measured value. ӕ Call up the or SAL measuring mode with <M> and/or <▲ >...

  • Page 39: Determining The Cell Constant (Calibration In The Control Standard)

    12 Operation 4.4.5 Determining the cell constant (Calibration in the control standard) Why determine the Aging slightly changes the cell constant, e. g. by coatings. As a result, an in- cell constant? exact measured value is displayed. The original characteristics of the cell can often be restored by cleaning the cell.
  • Page 40 Operation handylab multi 12 Calibration After the calibration, the measuring instrument automatically evaluates the evaluation current status of the calibration. The evaluation appears on the display. Display Cell constant [cm 0.450 ... 0.500 cm Outside the range 0.450 ... 0.500 cm...
  • Page 41 12 Operation mV/pH % mg/l mbar Time Baud ° Day.Month No. ° Year Ident Tref25 Tref20 AutoCal DIN Auto Store ARng LoBat AutoCal TEC To return to the measuring mode: Press the <M> key. The de- termined cell constant is taken over for the measurement.

  • Page 42: Calibration Intervals (Int 3, Int 4, Int 5)

    Operation handylab multi 12 Calibration intervals (Int 3, Int 4, Int 5) For each measured variable, a time interval is stored. When it has expired, you will be reminded to calibrate. After a calibration interval has expired, the probe symbol of the relevant measured variable flashes. It is still possible to measure.

  • Page 43: Saving Data

    12 Operation Saving data The handylab multi 12 portable measuring instrument has an internal data memory. It can store up to 500 datasets. A complete data record consists of: Number of the storage location Date/time Measured values of the probes connected...
  • Page 44 Operation handylab multi 12 mV/pH % mg/l mbar 1/ cm Sal Time Baud ° Day.Month ° Year Ident Tref25 Tref20 AutoCal DIN Auto Store ARng LoBat AutoCal TEC Lin Cal Using <▲> <▼>, enter the required ID number (1 ... 999).

  • Page 45: Switching On Autostore (Int 1)

    12 Operation 4.6.2 Switching on AutoStore (Int 1) The save interval (Int 1) determines the chronological interval between auto- matic save processes. After the fixed interval has expired, the current data record is transmitted to the internal storage and to the interface.
  • Page 46 Operation handylab multi 12 mV/pH % mg/l mbar Time Baud ° Day.Month No. ° Year Ident Tref20 Auto Store Tref25 AutoCal DIN LoBat ARng AutoCal TEC Set the required ID number with <▲> <▼>. Confirm with <RUN/ENTER>. The measuring instrument switches to the last active measur- ing mode and start the measuring and saving procedure.

  • Page 47: Outputting The Data Storage

    12 Operation 4.6.3 Outputting the data storage You can output the contents of the data storage: Stored data on the display Calibration data on the display Stored data on the serial interface Calibration protocol to the interface Outputting stored Press the <RCL>...
  • Page 48 Operation handylab multi 12 Note If you want to search for a certain element of the data record (e.g. date), pro- ceed as follows: Using <RUN/ENTER>, select the element (e.g. date). Press <▲> or <▼> repeatedly until the required element ap- pears on the display.
  • Page 49 12 Operation Sample printout: 09.03.01 17:10 pH 10.01 °C Tauto Ident : 09.03.01 17:12 305 mV Tauto Ident : 09.03.01 17:24 7.88 mg/l 17.6° Tauto Ident : 09.03.01 17:46 7.11 mg/l 17.8° Tauto SAL = 17.9 Ident : 10.03.01...
  • Page 50 Operation handylab multi 12 Outputting the Press the <RCL> key repeatedly until CAL disp appears on calibration data the display. on the display mV/pH C A L % mg/l mbar Time Baud ° Day.Month No. ° Year Ident Tref25 Tref20...
  • Page 51 12 Operation Press <RUN/ENTER> to display the relative slope of the D. O. probe. mV/pH 0 8 8 % mg/l mbar Time Baud ° Day.Month ° Year Ident Tref25 Tref20 AutoCal DIN Auto Store ARng LoBat AutoCal TEC Press <RUN/ENTER>...
  • Page 52 Operation handylab multi 12 Outputting the Press the <RCL> key repeatedly until CAL SEr appears on the calibration display. protocol on the interface mV/pH C A L % mg/l mbar Time Baud ° Day.Month No. ° Year Ident Tref25 Tref20...

  • Page 53: Clearing The Memory

    12 Operation 4.6.4 Clearing the memory With this function, you can delete the stored data records. 500 storage loca- tions will then be available again. Note The Clear memory function only appears when there are data records stored in the memory.

  • Page 54: Transmitting Data

    Operation handylab multi 12 Transmitting data You have the following possibilities of transmitting data: One of the following options: – With the AutoStore function (page 45), measured values are periodically saved internally (save interval Int 1) and output on the interface.
  • Page 55 12 Operation Confirm with <RUN/ENTER>. The measuring instrument switches to the last active measur- ing mode. Note When the AutoStore function is active at the same time, the data transmis- sion is performed according to the setting of the save interval (Int 1). Set the save interval (Int 1) to OFF to activate the Data transmission interval (Int 2).

  • Page 56: Pc/External Printer (Rs232 Interface)

    Operation handylab multi 12 4.7.2 PC/external printer (RS232 interface) Via the RS 232 interface, you can transmit the data to a PC or an external printer. Use the Z 395 (PC) or Z 391 (ext. printer) cable. Warning The RS232 interface is not galvanically isolated.

  • Page 57: Configuration

    12 Operation Configuration You can adapt the handheld meter to your individual requirements. To do this, the following parameters can be changed (the status on delivery is marked in bold): Baud rate 1200, 2400, 4800, 9600 Air pressure display...
  • Page 58 Operation handylab multi 12 mV/pH C A L % mg/l mbar Time Baud ° Day.Month No. ° Year Ident Tref25 Tref20 AutoCal DIN Auto Store ARng LoBat AutoCal TEC Select the required display during the pH calibration with <▲> <▼>.
  • Page 59 12 Operation Dissolved oxygen TDS UpH calibration interval mV/pH mg/l mbar 1/ cm Baud Time ° Day.Month No. ° Year Ident Tref25 Tref20 AutoCal DIN Auto Store ARng LoBat AutoCal TEC Set the required interval in days (d) with <▲> <▼>.
  • Page 60 Operation handylab multi 12 Date and time mV/pH D i s % mg/l mbar 0 9 0 Time Baud ° Day.Month ° Year Ident Tref25 Tref20 AutoCal DIN Auto Store ARng LoBat AutoCal TEC Set the date of the current day with <▲> <▼>.

  • Page 61: Reset

    12 Operation Reset You can reset (initialize) the measurement parameters and the configuration parameters separately from one another. Measurement The following measuring parameters (pH/O /Cond InI) can be reset to the de- parameters fault condition: Measuring mode Asymmetry...
  • Page 62 Operation handylab multi 12 Resetting the Press the <RUN/ENTER> key and hold it down. measuring parameters Press the <CAL> key. The setting to reset the pH measuring parameters appears on the display. mV/pH % mg/l mbar Time Baud ° Day.Month No.
  • Page 63 12 Operation mV/pH % mg/l mbar Time Baud ° Day.Month No. ° Year Ident Tref20 Auto Tref25 AutoCal DIN Store LoBat ARng AutoCal TEC Using <▲> <▼>, switch between no and YES. YES: Resetting the Conductivity measuring parameters.
  • Page 64 Operation handylab multi 12 ba75371e03 11/2009...

  • Page 65: Maintenance, Cleaning, Disposal

    12 Maintenance, cleaning, disposal Maintenance, cleaning, disposal Maintenance The measuring instrument is almost maintenance-free. The only maintenance task is replacing the batteries. LoBat indicates that the batteries should be changed. The batteries are then largely depleted. Replacing the...

  • Page 66: Cleaning

    Maintenance, cleaning, disposal handylab multi 12 Note For maintenance of electrodes, probes and measuring cells refer to the rele- vant operating manuals. Cleaning Occasionally wipe the outside of the measuring instrument with a damp, lint- free cloth. Disinfect the housing with isopropanol as required.

  • Page 67: What To Do If

    12 What to do if... What to do if... pH system messages Error message 0FL Cause Remedy pH electrode: – Not connected – Connect electrode – Air bubble in front of the – Remove air bubble diaphragm – Air in the diaphragm –...
  • Page 68 What to do if... handylab multi 12 Buffer solutions – Incorrect buffer solutions – Change calibration procedure – Buffer solutions too old – Use only once. Note the shelf life – Buffer solutions depleted – Change solutions No stable mea-...

  • Page 69: Oxi System Messages

    12 What to do if... Oxi system messages Error message 0FL Cause Remedy Display range exceeded Oxygen sensor – Not connected – Connect the probe – Cable broken – Replace probe – Depleted – Replace probe – Short-circuit between gold and –...

  • Page 70: Conductivity System Messages

    What to do if... handylab multi 12 Measured value Cause Remedy too low – Insufficient flow – Provide flow to the probe Measured value Cause Remedy too high – High amount of dissolved – Correct solubility function substances using the salinity equivalent –...

  • Page 71: General Errors

    12 What to do if... General errors Display LoBat Cause Remedy – Batteries almost empty – Exchange the batteries (see section 5.1 M AINTENANCE Instrument does Cause Remedy not react – Operating condition undefined – Processor reset: to keystroke or EMC load unallowed Hold the <CAL>...
  • Page 72 What to do if... handylab multi 12 ba75371e03 11/2009...

  • Page 73: Lists

    12 Lists Lists This chapter provides additional information and orientation aids. Abbreviations The list of abbreviations explains the indicators and the abbreviations that ap- pear on the display and in the manual. 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.
  • Page 74 Lists handylab multi 12 Abbreviations Conductivity value (international γ) AutoRead (drift control) ARng Automatic range switching Measuring instrument measures with highest reso- lution Asymmetry AutoCal TEC Automatic pH calibration with SI Analytics techni- cal buffer solutions according to DIN 19267 Cell constant [cm ] (internat.
  • Page 75 12 Lists Temperature measurement active (temperature probe) 25/T25 Reference temperature of 25 °C Asymmetry ba75371e03 11/2009...
  • Page 76 Lists handylab multi 12 Glossary Adjusting To manipulate a measuring system so that the relevant value (e. g. the displayed value) differs as little as possible from the correct value or a value that is regarded as correct, or that the difference remains with- in the tolerance.
  • Page 77 12 Lists Measuring system The measuring system comprises all the devices used for measuring, e. g. measuring instrument and probe. In addition, there is the cable and possibly an amplifier, terminal strip and armature. Molality Molality is the quantity (in Mol) of a dissolved substance in 1000 g sol- vent.
  • Page 78 Lists handylab multi 12 Sample Designation of the sample ready to be measured. Normally, a test sample is made by processing the original sample. The test sample and original sample are identical if the test sample was not processed. Setting the...
  • Page 79 Cond 330i/340i Index Index Air pressure display Energy saving feature pH calibration evaluation 69, 70 Asymmetry Error messages pH value Authorized use Plug-in power supply 22, 24 AutoCal TEC Precautions AutoRange (oxygen) Initial commissioning AutoRead Initialization Conductivity Interval Reference temperature D.
  • Page 80 Index Cond 330i/340i Two-point calibration (pH) 22, 25 ba75371e03 11/2009...
  • Page 82 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.com...

Table of Contents