wtw Cond 3300i Operating Manual
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wtw Cond 3300i Operating Manual

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Operating manual
Handheld meter
Cond 3300i/3400i
Conductivity measuring instrument
ba75684e02
03/2008

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Summary of Contents for wtw Cond 3300i

  • Page 1 Operating manual Handheld meter Cond 3300i/3400i Conductivity measuring instrument ba75684e02 03/2008...
  • Page 2 © Copyright Weilheim 2008, WTW GmbH Reproduction in whole - or even in part - is prohibited without the express writ- ten permission of WTW GmbH, Weilheim. Printed in Germany. ba75684e02 03/2008...

  • Page 3: Table Of Contents

    Cond 3300i/3400i List of contents Overview ........5 SETs of equipment .
  • Page 4 List of contents Cond 3300i/3400i What to do if........51 Technical data .

  • Page 5: Overview

    Note If you need further information or application notes, you can obtain the follow- ing material from WTW: Application reports Primers Safety datasheets. You will find information on available literature in the WTW catalog or via the Internet. ba75684e02 03/2008...

  • Page 6: Sets Of Equipment

    SETs of equipment The measuring instrument is also available as part of individual SETs of equipment. You will find additional information on this and other accessories in the WTW catalog or via the Internet. Set (sample configuration): Measuring instrument, Cond 3300i/3400i Stand –...

  • Page 7: Keypad

    Cond 3300i/3400i Overview Keypad RUN/ENTER Key functions Select the measuring mode <M>: – Conductivity/Specific resistance – Salinity – Total dissolved solids (TDS) Save a measured value <STO> Switch measuring instrument on/off <ON/OFF> – Determine or set up the cell constant –...

  • Page 8: Display

    Only connect conductivity measuring cells to the measuring instrument that cannot return any voltages or currents that are not allowed (> SELV and > current circuit with current limiting). Nearly all measuring cells - especially WTW measuring cells - fulfill these conditions. ba75684e02...

  • Page 9: Safety

    Cond 3300i/3400i Safety Safety This operating manual contains basic instructions that you must follow during the commissioning, operation and maintenance of the conductivity measur- ing instrument. Consequently, all responsible personnel must read this oper- ating manual before working with the measuring system. The operating manual must always be available within the vicinity of the measuring system.

  • Page 10: General Safety Instructions

    Safety Cond 3300i/3400i General safety instructions This instrument is built and inspected according to the relevant guidelines and norms for electronic measuring instruments (see chapter 7 T ECHNICAL DATA It left the factory in a safe and secure technical condition.

  • Page 11: Commissioning

    Cond 3300i/3400i Commissioning Commissioning Scope of delivery Handheld meter, Cond 3300i or 3400i Plug-in power supply, optional (3400i only) Operating manual and short operating manual 4 batteries, 1.5 V Mignon type AA (in the instrument) Initial commissioning Perform the following activities:...
  • Page 12 7 T ECHNICAL DATA Plug the jack (1) into the socket (2) of the measuring instrument. Connect the original WTW plug-in power supply (3) to an easily ac- cessible mains socket. Note You can also measure without the plug-in power supply.

  • Page 13: Operation

    Cond 3300i/3400i Operation Operation Switching on the measuring instrument Connect a conductivity measuring cell to the measuring instrument. Press the <ON/OFF> key. The display test appears briefly on the display. Subsequently, the selected cell constant and the temperature com- pensation that was set up appear for approx. one second one after the other.

  • Page 14: Measuring

    Only carry out measurements with a temperature sensor. The temperature sensor sensor is shown on the display by TP. The WTW TetraCon 325 conductivity measuring cell has a temperature sen- sor integrated in it. Note The conductivity measuring instrument automatically recognizes the type of the temperature sensor used.

  • Page 15: Conductivity / Specific Resistance

    Cond 3300i/3400i Operation 4.2.2 Conductivity / Specific resistance Note You can display measured values in the units μS/cm (conductivity) or MΩcm (specific resistance). This setting is described in section 4.6 C ONFIGURATION Thus, you can carry out conductivity measurements or measurements of the specific resistance: Perform the preparatory activities according to section 4.2.1.

  • Page 16: Tds (Total Dissolved Solids)

    Operation Cond 3300i/3400i Press the <M> key until Sal appears on the status display. The salin- ity value appears on the display. mV/pH mg/l mbar Time Baud ° Day.Month No. ° Year Ident Tref25 Tref20 AutoCal DIN Auto Store ARng...
  • Page 17 Cond 3300i/3400i Operation Wait for a stable measured value. AutoRead AR The AutoRead function (drift control) checks the stability of the measurement (drift control) signal. The stability has a considerable effect on the reproducibility of the measured value. Select the required measuring mode with <M>.

  • Page 18: Determining/Setting Up The Cell Constant [C]

    Operation Cond 3300i/3400i Determining/setting up the cell constant [C] Why determine/set Aging slightly changes the characteristics of the cell, e. g. by coatings. As a up the cell result, an inexact measured value is displayed. The original characteristics of constant? the cell can often be restored by cleaning the cell.
  • Page 19 Cond 3300i/3400i Operation Sample printout: CALIBRATION PROTOCOL 14.04.01 11:37 Device No.: 99990000 Calibration Conductivity Cal time: 14.04.01 / 11:37 Cal interval: 180d Cal Std.: 0.01 mol/l KCL 40.0 °C Conduct./Tref25: 1413µS/cm Cell Const : 0.478 1/cm Probe : Calibration After the calibration, the measuring instrument automatically evaluates the evaluation current status of the calibration.

  • Page 20: Determining The Cell Constant (Calibrating In The Control Standard)

    Operation Cond 3300i/3400i 4.3.1 Determining the cell constant (calibrating in the control standard) Note This method of automatically determining the cell constant by calibration with the 0.01 mol/l KCL standard solution can only be used for measuring cells with cell constants in the range 0.450 ... 0.500 cm or 0.800 ...
  • Page 21 Cond 3300i/3400i Operation Press the <RUN/ENTER> key. – If no temperature sensor is connected, enter the current temperature of the solution with <▲> <▼> and confirm with <RUN/ENTER>. – If a temperature sensor is connected, the AR measurement to determine the cell constant starts.

  • Page 22: Setting The Cell Constant Manually

    Operation Cond 3300i/3400i 4.3.2 Setting the cell constant manually Note The cell constant to be set must either be taken from the operating manual of the measuring cell or is printed on the measuring cell. You can set the cell constant manually as follows: Range Press the <CAL>...
  • Page 23 Cond 3300i/3400i Operation To return to the measuring mode: Press the <M> key. From now on, the cell constant 0.614 cm will be used. Range Press the <CAL> key repeatedly until CELL appears on the display. 0.090 ... 0.110 cm...
  • Page 24 Operation Cond 3300i/3400i Setting the fixed You can set the fixed value 0.010 cm for the cell constant as follows: cell constant 0.010 cm Press the <CAL> key repeatedly until CELL appears on the display. mV/pH % mg/l mbar Time Baud °...

  • Page 25: Setting The Temperature Compensation Tc

    Cond 3300i/3400i Operation 4.3.3 Setting the temperature compensation TC The calculation of the temperature compensation is based on the preset ref- erence temperature, Tref 20 or Tref 25 (see section 4.6 C ONFIGURATION You can select one of the following temperature compensation methods:...
  • Page 26 Operation Cond 3300i/3400i Selecting the You can select the nonlinear temperature compensation as follows: nonlinear temperature Press the <CAL> key repeatedly until tc appears on the display. compensation mV/pH % mg/l mbar Time Baud ° Day.Month No. ° Year Ident...
  • Page 27 Cond 3300i/3400i Operation Selecting the You can select the linear temperature compensation as follows: linear temperature Press the <CAL> key repeatedly until tc appears on the display. compensation mV/pH % mg/l mbar Baud Time ° Day.Month No. ° Year Ident...
  • Page 28 Operation Cond 3300i/3400i Switching the You can switch off the temperature compensation as follows: temperature compensation off Press the <CAL> key repeatedly until tc appears on the display. mV/pH % mg/l mbar Time Baud ° Day.Month No. ° Year Ident...

  • Page 29: Saving

    Cond 3300i/3400i Operation Saving The measuring instrument has an internal data memory. It can store up to 800 data records. A complete data record consists of: Storage location Date/time Measured value Temperature Temperature measuring procedure ID number You can transmit measured values (data records) to the data storage in two...
  • Page 30 Operation Cond 3300i/3400i mV/pH % mg/l mbar Time Baud ° Day.Month ° Year Ident Tref25 Tref20 AutoCal DIN Auto Store ARng LoBat AutoCal TEC Using <▲> <▼>, enter the required ID number (1 ... 999). Confirm with <RUN/ENTER>. The instrument changes to the measuring mode.

  • Page 31: Saving Automatically

    Cond 3300i/3400i Operation 4.4.2 Saving automatically 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 storage and to the interface. Setting the save The default setting for the save interval (Int 1) is OFF.
  • Page 32 Operation Cond 3300i/3400i As soon as all of the 800 storage locations are occupied, AutoStore is terminated (Int 1 = OFF). If there are not enough storage locations available for your measure- ments: – Output and backup the data storage (see page 33) and –...

  • Page 33: Outputting The Data Storage

    Cond 3300i/3400i Operation 4.4.3 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 (only Cond 3400i) Calibration protocol to the interface (only Cond 3400i) Outputting stored Press the <RCL>...
  • Page 34 Operation Cond 3300i/3400i Note If you want to search for a certain element (e.g. date), proceed as follows: Using <RUN/ENTER>, select the element (e.g. date). Press <▲> or <▼> repeatedly until the required date appears on the display. After approx. 2 s the temperature of the displayed measured value appears.
  • Page 35 Cond 3300i/3400i Operation Sample printout: Device No.: 99990000 01.01.99 00:04 2.40 mS/cm °C Tman Tref25 C = 0.475 1/cm Ident : 1 10.01.99 10:09 2.40 mS/cm 25.3 °C Tauto Tref25 C = 0.475 1/cm Ident : 1 12.01.99 01:48 2.40 mS/cm 21.6 °C...
  • Page 36 Operation Cond 3300i/3400i Using <M> or <RUN/ENTER>, you can switch back to the measuring mode. Outputting the Press the <RCL> key repeatedly until CAL appears on the display. calibration protocol on the interface (only Cond 3400i) mol/L mV/pH % ppm mg/L °F...

  • Page 37: Clearing The Memory

    Cond 3300i/3400i Operation 4.4.4 Clearing the memory With this function, you can delete stored data records. 800 storage locations will then be available again. Note The Clear memory function only appears when there are data records stored in the memory. Otherwise, the measuring instrument automatically switches to the measuring mode.

  • Page 38: Transmitting Data (Only Cond 3400I)

    Operation Cond 3300i/3400i Transmitting data (only Cond 3400i) You have the following possibilities of transmitting data: One of the following options: – With the AutoStore function (page 31), measured values are periodically saved internally (save interval Int 1) and output on the interface.
  • Page 39 Cond 3300i/3400i Operation Setting the The default setting for the interval is OFF. Data transmission To start the data transmission, set an interval (5 s, 10 s, 30 s, 1 min, interval 5 min, 10 min, 15 min, 30 min, 60 min): Press the <RUN/ENTER>...

  • Page 40: Recorder (Analog Output, Cond 3400I)

    Operation Cond 3300i/3400i 4.5.2 Recorder (analog output, Cond 3400i) You can transmit data to a recorder via the analog output. Connect the ana- log output to the recorder via the AK323 interface cable. The data output automatically switches to Recorder output.

  • Page 41: Pc/External Printer (Rs 232 Interface, Cond 3400I)

    Cond 3300i/3400i Operation 4.5.3 PC/external printer (RS 232 interface, Cond 3400i) Via the RS 232 interface, you can transmit the data to a PC or an external printer. Use the AK340/B (PC) or AK325/S (ext. printer) cable to connect the inter- face to the instruments.

  • Page 42: Configuration

    Operation Cond 3300i/3400i 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): Baud rate 1200, 2400, 4800, 9600 Calibration interval (Int 3) 1 ...
  • Page 43 Cond 3300i/3400i Operation Calibration interval TDS UpH mV/pH mg/l mbar 1/ cm Time Baud ° Day.Month No. ° Year Ident Tref25 Tref20 AutoCal DIN Auto Store ARng LoBat AutoCal TEC Set the required interval in days with <▲> <▼>. Confirm with <RUN/ENTER>.
  • Page 44 Operation Cond 3300i/3400i Using <▲> <▼>, switch between t25 and t20. Confirm with <RUN/ENTER>. Cond appears on the display. Display of the TDS UpH mV/pH measured value as % mg/l conductivity / specific resistance mbar Time Baud ° Day.Month °...
  • Page 45 Cond 3300i/3400i Operation Confirm with <RUN/ENTER>. The minutes flash on the display. Set the current time with <▲> <▼>. Confirm with <RUN/ENTER>. The measuring instrument automatically switches to the measuring mode. ba75684e02 03/2008...

  • Page 46: Reset

    Operation Cond 3300i/3400i Reset You can reset (initialize) the measurement parameters and the configuration parameters separately from one another. Measurement The following measured parameters ( InI) are reset to the default condi- parameters tion: Measuring mode Cell constant 0.475 cm (calibrated) 0.475 cm...
  • Page 47 Cond 3300i/3400i Operation Using <▲> <▼>, switch between no and YES. YES: Resetting the measuring parameters no: Retaining settings. Confirm with <RUN/ENTER>. The measuring instrument switches to the configuration parameters. Resetting the configuration mV/pH % mg/l parameters mbar Time Baud °...
  • Page 48 Operation Cond 3300i/3400i ba75684e02 03/2008...

  • Page 49: Maintenance, Cleaning, Disposal

    Cond 3300i/3400i 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 batteries Open the housing after the instrument has been switched off: –...

  • Page 50: Cleaning

    Maintenance, cleaning, disposal Cond 3300i/3400i Note For the maintenance of the measuring cells, follow the corresponding oper- ating manual. Cleaning Occasionally wipe the outside of the measuring instrument with a damp, lint- free cloth. Disinfect the housing with isopropanol as required.
  • Page 51 Cond 3300i/3400i What to do if... What to do if... LoBat display Cause Remedy – Batteries almost empty – Replace batteries (see section 5.1 M AINTENANCE Instrument does Cause Remedy not react to – Operating condition undefined – Processor reset:...
  • Page 52 – Output data storage and clear data storage You would like to Cause Remedy know which – e.g. question of the WTW – Press the key and switch on software version is service department instrument. The software version in the instrument is displayed.
  • Page 53 Cond 3300i/3400i Technical data Technical data Dimensions and weight Length [mm] Width [mm] Height [mm] Weight [kg] Approx. 0.3 Mechanical structure Type of protection IP 66 Electrical safety Protective class Test certificates cETLus, CE Ambient Storage - 25 °C ... + 65 °C...
  • Page 54 Technical data Cond 3300i/3400i Accuracy No compensation: (± 1 digit) Accuracy ± 0.5 % Nonlinear compensation Accuracy Sample temperature ± 0.5 % 0 °C ... 35 °C according to EN 27 888; ± 0.5 % 35 °C ... 50 °C extended nLF function acc.
  • Page 55 Cond 3300i/3400i Technical data Analog output Automatic switchover when the recorder is connected by the cable, (only Cond 3400i) AK 323. Output signal 0 ... 1.999 V for range 0 ... 1999 digits Accuracy ± 0.5 % of display value Internal resistance <...
  • Page 56 Technical data Cond 3300i/3400i Instrument safety E.C. guideline 73/23/EEC EN 61010-1 A2:1995 Climatic class VDI/VDE 3540 Type of protection EN 60529:1991 FCC Class A Equipment Statement Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
  • Page 57 Cond 3300i/3400i 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 58 Lists Cond 3300i/3400i Abbreviations Conductivity value (international γ) AutoRead (drift control) ARng Automatic range switching Measuring instrument measures with highest reso- lution Cell constant [cm ] (internat. k) °C Temperature unit, degrees Celsius Calibration Initialization Resets individual basic functions to the status they...
  • Page 59 AutoRange Name of the automatic selection of the measuring range. AutoRead WTW name for a function to check the stability of the measured value. Calibration Comparing the value from a measuring system (e. g. the displayed value) to the correct value or a value that is regarded as correct. Of- ten, this expression is also used when the measuring system is adjust- ed at the same time (see adjusting).
  • Page 60 Lists Cond 3300i/3400i Salinity The absolute salinity S of seawater corresponds to the relationship of the mass of dissolved salts to the mass of the solution (in g/Kg). In practice, this dimension cannot be measured directly. Therefore, the practical salinity is used for oceanographic monitoring. It is deter- mined by measuring the electrical conductivity.
  • Page 61 Cond 3300i/3400i Index Index LoBat Analog output Authorized use AutoRead Nonlinear temperature compensati- Calibration Calibration protocol (3400i) Operating safety Cell constant determine set manually Printing Conductivity calibration protocol Conductivity/ Resistance Connecting a printer Connecting the plug-in power supply Reference temperature...
  • Page 62 Index Cond 3300i/3400i ba75684e02 03/2008...
  • Page 63 Wissenschaftlich-Technische Werkstätten GmbH Dr.-Karl-Slevogt-Straße 1 D-82362 Weilheim Germany Tel: +49 (0) 881 183-0 +49 (0) 881 183-100 Fax: +49 (0) 881 183-420 E-Mail: Info@WTW.com Internet: http://www.WTW.com...

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