Operating manual handylab pH 11 69 24 M CAL PH 92 6 °C TP O AR pH Meter ba75366d04 01/2011
handylab LF 12 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.
handylab pH 11 List of contents handylab pH 11 - List of contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 1.2 1.3 1.4 2 4.3 4.4 4.5 01/2011 Switching on the measuring instrument . . . . . . . . . . . . . . . . . Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2.2 Measuring the pH value . . . . . . . . . . . . . . . . . .
List of contents 4 handylab pH 11 ba75366e04 01/2011
handylab pH 11 Overview 1 Overview The compact precision handheld meter handylab pH 11 enables you to carry out pH measurements rapidly and reliably. The handylab pH 11 provides the maximum degree of operating comfort, reliability and measuring certainty for all applications. The proven calibration procedures and the special AutoRead function support you in your work with the handylab pH 11.
Overview handylab pH 11 1.
handylab pH 11 Overview 1.2 Display Status display ISE UpH S 1 8 8 8 8°F Baud Time Day.Month No. Year LoBat 1.3 Sensor symbol mol/L mV/pH % ppm mg/L Ident 8 8 .8 °C % TP AutoCal DIN Auto Store CalError TempError AutoCal TEC ConCal ARng AR Meas. value display Function and temperature display RCL Jack field The meter has either a DIN socket or a BNC socket. The figure shows a meter with DIN socket (1).
Overview handylab pH 11 1.4 Dimensions and weight Length [mm] 172 Width [mm] 80 Height [mm] 37 Weight [kg] Approx. 0.3 Type of protection IP 66 Electrical safety Protective class III Test certificates cETLus, CE Mechanical structure Ambient conditions pH/ORP measuring ranges Precision of pH/ORP (± 1 digit) 8 Technical Data Storage - 25 °C ... + 65 °C Operation -10 °C ... + 55 °C Relative atmospheric humidity < 90 % of annual average Measuring range Resolution pH - 2.000 ...
handylab pH 11 Correction function Power supply Applicable guidelines and norms Overview Temperature input Manually [°C] - 20 ... + 130 Batteries 4 x 1.5 V alkali-manganese batteries, Type AA Operational life Approx. 5000 operating hours EMC EC guideline 2004/108/EC EN 61326-1 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.
Overview 10 handylab pH 11 ba75366e04 01/2011
handylab pH 11 Safety 2 Safety This operating manual contains basic instructions that you must follow during the commissioning, operation and maintenance of the pH meter. Consequently, all responsible personnel must read this operating manual before working with the measuring system. The operating manual must always be available within the vicinity of the measuring system. Target group The measuring instrument was developed for work in the field and in the laboratory.
Safety handylab pH 11 2.2 General safety instructions This instrument is built and inspected according to the relevant guidelines and norms for electronic measuring instruments (see section 1.4 TECHNICAL DATA). It left the factory in a safe and secure technical condition.
handylab pH 11 Commissioning 3 Commissioning 3.1 Scope of delivery z Handheld meter, handylab pH 11 z Operating manual and short operating manual z 4 batteries, 1.
Commissioning 14 handylab pH 11 ba75366e04 01/2011
handylab pH 11 Operation 4 Operation 4.1 Switching on the measuring instrument 1 Press the key. The display test appears briefly on the display. Subsequently, the slope and asymmetry used appear for approx. one second one after the other. In addition, the calibration procedure of the last calibration is shown (AutoCal TEC or AutoCal DIN or no display in the delivery state or following initialization).
Operation handylab pH 11 4.2 Measuring 4.2.1 General information You can measure the following variables: z pH value z ORP voltage Preparatory activities Perform the following preparatory activities when you want to measure: 1 Connect the electrode to the measuring instrument. 2 Adjust the temperature of the buffer solutions or test solutions, or measure the current temperature, if you measure without a temperature sensor.
handylab pH 11 Operation 4.2.2 Measuring the pH value 1 Perform the preparatory activities according to section 4.2.1. 2 Immerse the pH electrode in the test sample. 3 Press the key until pH appears on the status display. The pH value appears on the display. ISE UpH mol/L mV/pH % ppm mg/L S 1 6 9 9 2°F Baud Time Day.Month No.
Operation handylab pH 11 Note The current AutoRead measurement can be terminated at any time (accepting the current value) by pressing . 4.2.3 Measuring the ORP voltage In conjunction with an ORP electrode, e.g. BlueLine 31Rx, the measuring instrument can measure the ORP voltage (U) of a solution. 1 Perform the preparatory activities according to section 4.2.1. 2 Immerse the ORP electrode in the test sample. 3 Press the key until U appears on the status display.
handylab pH 11 Operation 4.3 Why calibrate? When to calibrate? Calibrating 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. Thus, you should calibrate at regular intervals. z After connecting another electrode z after a voltage interruption, e. g.
Operation handylab pH 11 Displaying calibration data Each time the instrument is switched on, the calibration data are shown on the display for a short time (see section 4.1 SWITCHING ON THE MEASURING INSTRUMENT). In order to view the calibration data, switch the measuring instrument off and switch it on again. Calibration evaluation After the calibration, the measuring instrument automatically evaluates the current status of the electrode. The asymmetry and slope are evaluated separately.
handylab pH 11 Operation 4.3.1 AutoCal TEC For this procedure, use any two or three technical buffer solutions in ascending or descending order (pH values at 25 °C: 2.00 / 4.01 / 7.00 / 10.01). Note The calibration for pH 10.01 is optimized for the SI Analytics technical buffer solution pH 10.01. Other buffer solutions can lead to an erroneous calibration. The correct buffer solutions are given in the SI Analytics catalog or in the Internet.
Operation handylab pH 11 TDS UpH pH O S Sal mV mV/pH % mg/l m S/cm mbarM cm 1/ cmSal °F° % /K TP 1733 Baud Time Day.Month No. Year Ident 0248 C Sal mV/pH % mg/l m S/cm mbarM cm 1/ cmSal °F° % /K TP S 1700 Baud Time Day.Month No. Year Ident 0248 C Tref25 Tref20 AutoCal DIN Auto Store LoBat nLF Lin Cal AutoCal TEC ARng AR RCL Tref25 Tref20 AutoCal DIN Auto Store LoBat nLF Lin Cal AutoCal TEC ARng AR RCL 5 TDS UpH pH O When the measured value is stable, Ct2 appears.
handylab pH 11 Operation TDS UpH pH O S Sal mV mV/pH % mg/l m S/cm mbarM cm 1/ cmSal °F° % /K TP 1184 Baud Time Day.Month No. Year Ident 0248 C Tref25 Tref20 AutoCal DIN Auto Store LoBat nLF Lin Cal AutoCal TEC ARng AR RCL 10 TDS UpH pH O S Sal mV/pH % mg/l m S/cm mbarM cm 1/ cmSal °F° % /K TP 1401 Baud Time Day.Month No. Year Ident 0248 C Tref25 Tref20 AutoCal DIN Auto Store LoBat nLF Lin Cal AutoCal TEC ARng AR RCL When the measured value is stable, AR disappears.
Operation Three-point calibration handylab pH 11 12 Press the key to continue the three-point calibration. Ct3 appears on the display. 13 Thoroughly rinse the electrode with distilled water. 14 If necessary, enter the temperature of the third buffer solution with <▲> <▼>. 15 Immerse the pH electrode in the third buffer solution. 16 Press the key. The AR display indicator flashes. The electrode voltage (mV) or the buffer nominal value appears on the display.
handylab pH 11 Operation 4.3.2 AutoCal DIN For this procedure, use two or three different standard buffer solutions according to DIN 19266 in ascending or descending order (type A, C, D or F with pH values at 25 °C of: 1.679 / 4.006 / 6.865 / 9.180). Note The buffer solutions are automatically recognized by the measuring instrument. Depending on the instrument setting (see section 4.4 CONFIGURATION), the instrument displays the relevant buffer nominal value or the current electrode voltage in mV.
Operation handylab pH 11 TDS UpH pH O S TDS UpH pH O Sal mV mV/pH % mg/l m S/cm mbarM cm 1/ cmSal °F° % /K TP S 1177 Baud Time Day.Month No. Year Ident 0248 1401 Baud Time Day.Month No. C Year Ident 0248 C Tref25 Tref20 AutoCal DIN Auto Store LoBat nLF Lin Cal AutoCal TEC ARng AR RCL Tref25 Tref20 AutoCal DIN Auto Store LoBat nLF Lin Cal AutoCal TEC ARng AR RCL 5 Sal mV/pH % mg/l m S/cm mbarM cm 1/ cmSal °F° % /K TP When the measured value is stable, Cd2 appears.
handylab pH 11 Operation TDS UpH pH O S Sal mV mV/pH % mg/l m S/cm mbarM cm 1/ cmSal °F° % /K TP 1129 Baud Time Day.Month No. Year Ident 0248 C Tref25 Tref20 AutoCal DIN Auto Store LoBat nLF Lin Cal AutoCal TEC ARng AR RCL TDS UpH pH O S Sal mV/pH % mg/l m S/cm mbarM cm 1/ cmSal °F° % /K TP 1918 Baud Time Day.Month No. Year Ident 0248 C Tref25 Tref20 AutoCal DIN Auto Store LoBat nLF Lin Cal AutoCal TEC ARng AR RCL 10 When the measured value is stable, AR disappears.
Operation Three-point calibration handylab pH 11 12 Press the key to continue the three-point calibration. Cd3 appears on the display. 13 Thoroughly rinse the electrode with distilled water. 14 If necessary, enter the temperature of the third buffer solution with <▲> <▼>. 15 Immerse the pH electrode in the third buffer solution. 16 Press the key. The AR display indicator flashes. The electrode voltage (mV) or the buffer nominal value appears on the display.
handylab pH 11 Operation 4.3.3 Single-point calibration Two-point calibration ConCal Use any buffer solution for this rapid method. The calibration will be the more exact the nearer the pH value of the buffer solution is to that of the test sample. For this procedure, use two buffer solutions: z pH 7.0 ± 0.5 z any other buffer solution Note Skip the steps 2 and 9 if you use a pH electrode with a temperature sensor.
Operation handylab pH 11 sponds to a single-point calibration. For this, the instrument uses the Nernst slope (-59.2 mV/pH at 25 °C) and the specified asymmetry of the electrode. ISE UpH mol/L mV/pH % ppm mg/L S 1 6 S L O°F Baud Time Day.Month No. Year LoBat 30 Ident 8 2 4 8 °C % TP AutoCal DIN Auto Store CalError TempError AutoCal TEC ConCal ARng AR RCL 8 To continue the two-point calibration, thoroughly rinse the electrode with deionized water.
handylab pH 11 Operation 15 ba75366e04 01/2011 To return to the measuring mode: Press the key.
Operation handylab pH 11 4.4 Configuration You can adapt the measuring instrument to your individual requirements. To do this, the following parameters can be changed (the status on delivery is marked in bold): Display during the pH calibration Buffer nominal value, or current electrode voltage pH resolution 0.01 or 0.001 Note You can leave the configuration menu at any time with . The parameters that have already been changed are stored. 1 Switch off the measuring instrument.
handylab pH 11 Setting the resolution ba75366e04 01/2011 Operation 1 Press the key and hold it down. 2 Press the key. The measured values are displayed with a high resolution, e.g. pH = 4.012. 3 Press the and keys once more. The measured values are displayed with a low resolution, e.g. pH = 4.01.
Operation handylab pH 11 4.5 Reset You can reset (initialize) the measurement parameters and the configuration parameters separately from one another. Measurement parameters The following measured parameters (pH InI) are reset to the default condition: Measuring mode pH Asymmetry 0 mV Slope -59.16 mV/pH Calibration procedures AutoCal TEC Temperature, manual 25 °C Resolution (pH display) 0.
handylab pH 11 Maintenance, cleaning, disposal 5 Maintenance, cleaning, disposal 5.1 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 batteries 2 1 1 Open the housing after the instrument has been switched off: – Undo the four screws on the underside of the instrument – Pull down the lower cover (1).
Maintenance, cleaning, disposal handylab pH 11 Note For the maintenance of the electrodes, follow the corresponding operating manual. 5.2 Cleaning Occasionally wipe the outside of the measuring instrument with a damp, lintfree cloth. Disinfect the housing with isopropanol as required. Caution The housing is made of a synthetic material (ABS). Thus, avoid contact with acetone and similar detergents that contain solvents. Remove any splashes immediately. 5.
handylab pH 11 What to do if... 6 Error message 0FL What to do if...
What to do if... handylab pH 11 Buffer solutions No stable measured value – Incorrect buffer solutions – Change calibration procedure – Buffer solutions too old – Use only once.
handylab pH 11 Obviously incorrect measured values Instrument does not react to keystroke Display to ba75366e04 01/2011 What to do if...
What to do if...
handylab pH 11 Lists 7 Lists This chapter provides additional information and orientation aids. Abbreviations Specialist terms Index ba75366e04 01/2011 The list of abbreviations explains the indicators and the abbreviations that appear on the display and in the manual. 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. The index will help you to find the topics that you are looking for.
Lists handylab pH 11 Abbreviations 42 AR AutoRead (drift control) ARng Automatic range switching Measuring instrument measures with highest resolution ASY Asymmetry AutoCal DIN Automatic pH calibration with buffer solutions prepared according to DIN 19 266 AutoCal TEC Automatic pH calibration with SI Analytics technical buffer solutions according to DIN 19267 °C Temperature unit, degrees Celsius Cal Calibration Cd... Display indicator during calibration for pH measurements.
handylab pH 11 Lists 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 within the tolerance. Asymmetry Designation for the offset potential of a pH electrode.
Lists handylab pH 11 Offset potential The measurable potential of a symmetrical electrode, the membrane of which is immersed in a solution with the pH of the nominal electrode zero point. The asymmetry is part of the offset potential. 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). pH value The pH is a measure of the acidic or basic effect of an aqueous solution.
handylab pH 11 Index Index A S Asymmetry 19 Authorized use 11 AutoCal DIN 19, 25 AutoCal TEC 19, 21 AutoRead 17 Safety 11 Safety precautions 11 Scope of delivery 13 Setting the resolution 33 Setting the resolution (pH) 17 Single-point calibration 19 Single-point calibration (pH) C Calibration evaluation 20 Calibration procedures 19 ConCal 19, 29 D Default condition 34 Display 7 Displaying calibration data 20 Drift control 17 E 22, 23, 26, 27, 30 Slope 19 T Temperature sensor 16 Three-point calib
Index 46 handylab pH 11
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