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Bibby Sterilin jenway 4510 Operating Manual

Conductivity/tds meter
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Model 4510
Conductivity/TDS Meter
Operating Manual
REV B/09-09

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Summary of Contents for Bibby Sterilin jenway 4510

  • Page 1 Model 4510 Conductivity/TDS Meter Operating Manual REV B/09-09...

  • Page 3: Table Of Contents

    Contents Safety SECTION 1 - Introduction Instrument Description Instrument Specification SECTION 2 - Installation Unpacking Installation Display Controls Inputs/Outputs SECTION 3 - Theory and Practice of Conductivity Measurements Theory of Conductivity Measurement Conductivity Measurement Preparation of Standard Buffer Solutions Solution Temperature Values Good Practice Guidelines SECTION 4 - Operation Setup Parameters...

  • Page 4: Safety

    Safety Please read this information carefully prior to installing or using this equipment. 1. The unit described in this manual is designed to be operated only by trained personnel. Any adjustments, maintenance and repair must be carried out as defined in this manual, by a person qualified to be aware of the hazards involved.

  • Page 5: Section 1 - Introduction

    SECTION 1 - Introduction INSTruMENT DESCrIPTION The 4510 is a general purpose conductivity/TDS/temperature meter used for routine laboratory analysis. The meter supports direct entry of the conductivity cell constant or automatic recognition of the four standard calibration solutions available from Jenway. The 4510 includes a 32 reading memory facility, automatic temperature compensation (ATC), analogue output and an RS232 serial interface.

  • Page 6: Section 2 - Installation

    SECTION 2 - Installation uNPACkINg Remove the Model 4510 from the packaging and ensure the following items are included: 1. Model 4510 conductivity/TDS meter 2. Glass bodied conductivity cell with ATC K=1 (027 013) 3. Electrode holder 4. Power supply (as specified at time of ordering the product) 5.

  • Page 7: Display

    DISPlAy Fig. 2.3.1 - Display 1. Standard selection indicates when a calibration is being performed and which standard is being used. 2. Symbol Displayed during setup of instrument parameters. 3. Primary display digit. Provides direct readout in conductivity or TDS of samples and standards. 4.

  • Page 8: Controls

    CONTrOlS Fig. 2.4.1 - Keypad 1. ESC / Used to switch the instrument on and to place into standby mode (only if power supply lead remains connected to the instrument). Also used to escape/exit a mode. 2. CAl / Clr Used to select and perform a calibration sequence.

  • Page 9: Inputs/Outputs

    INPuTS/OuTPuTS Fig. 2.5.1 - Rear panel layout 1. Conductivity Socket 7 pin DIN socket which allows the conductivity cell to be connected. 2. Analog Out 2 x 4mm sockets. Allows the analogue reading of the meter to be recorded externally on a suitable device.

  • Page 10: Section 3 - Theory And Practice Of Conductivity Measurement

    SECTION 3 - Theory and Practice of Conductivity Measurement ThEOry OF CONDuCTIvITy MEASurEMENT In general, the measurement of conductivity is a rapid and inexpensive way of determining the ionic strength or concentration of a solution. Conductivity is the ability of a solution to pass electrical current. As electricity is a flow of electrons, any charged particles (ions) in a solution will conduct this electricity and the amount of current flowing will be proportional to the number of ions present in the conducting solution.

  • Page 11: Preparation Of Standard Buffer Solutions

    Total Dissolved Solids (TDS) The concentration of dissolved ions in a solution can be determined from a solutions conductivity value by using an appropriate factor (EC ratio). TDS (mg/l) = Conductivity (µS/cm) x EC ratio For accurate determinations, the EC ratio should be determined for a range of standard solutions containing the same dissolved ions as the sample.
  • Page 12 4. Thoroughly rinse the cell plates in deionised water after use, and for short term storage immerse the cell in deionised water. Although it is not essential to store the conductivity cell with the plates in a wetted condition, if they are allowed to dry out completely, the cell will need soaking in deionised water for at least 1 hour before re-use.

  • Page 13: Section 4 - Operation

    SECTION 4 - Operation SETuP PArAMETErS The following section details the setup modes available to the user. These are: 4.1.1 Cell Constant (K) Entry 4.1.2 Temperature Coefficient Entry 4.1.3 Reference Temperature Selection 4.1.4 TDS EC Ratio Entry 4.1.5 Temperature Units 4.1.6 Manual Temperature 4.1.7 Serial Port Baud Rate These can be set in sequence as detailed in this section or, by entering the SETUP mode and using...
  • Page 14 4.1.2 TEMPErATurE COEFFICIENT ENTry The display will show: The secondary display will show COEFF and will then scroll TEMPERATURE COEFFICIENT after 10 seconds. Symbol will flash while adjustment is being made. The first digit of the value will be flashing. Adjustment of the flashing digit can be made using the Up/Down arrow keys.

  • Page 15: Temperature Units Selection

    The Left/Right arrow keys and the CAL/CLR key have no function during the setup of this parameter. To accept the reference temperature selected, press the STO key. The symbol will disappear, the secondary display will momentarily show SAVED if the value has been changed and the next setup menu option will be displayed.

  • Page 16: Serial Port Baud Rate

    To select °C or °F use the Up/Down arrow keys. The Left/Right arrow keys and the CAL/CLR key have no function during the setup of this parameter. Symbol will flash while adjustment is being made. To accept °C or °F, press the STO key. The symbol will disappear, the secondary display will momentarily show SAVED if the value has been changed and the next setup menu option will be displayed.

  • Page 17: Instrument Calibration

    The secondary display will show BAUD and will then scroll SERIAL PORT BAUD RATE after 10 seconds. To select the required baud rate (9600 or 1200) use the Up/Down arrow keys. The data bits and parity will automatically adjust as the baud rate is selected. The Left/Right arrow keys and the CAL/CLR key have no function during the setup of this parameter.

  • Page 18: Performing Measurements

    3. If required, adjust the value in the Temperature Coefficient Entry screen (see Section 4.1.2). 4. Select the required reference Temperature Selection screen setting (see Section 4.1.3). 5. Exit the setup menus by pressing the ESC key and select the Mode tab on the display using the Left/Right arrows keys.

  • Page 19: Accessing Stored Results

    b) Ensure that the correct TDS EC ratio value, for the sample under test, is set in the setup menu (see Section 4.1.4). c) Exit the setup menu and select the mode tab on the display using the Left/Right arrows keys. Use the Up/Down arrow keys to select the TDS mode as indicated by the units of measurement on the display: mg/l or g/l.
  • Page 20 The Up arrow key increments the memory index, the Down arrow key decrements the memory index. The Left arrow key exits to the main measurement mode. The Right arrow key and STO key do not function in this mode. CAL/CLR deletes the current memory location. The secondary display shows CLEAR. Holding the CAL/CLR key until after CLEAR is displayed on the screen will delete all readings.

  • Page 21: Section 5 - Maintenance

    SECTION 5 - Maintenance gENErAl The Model 4510 is designed to give optimum performance with minimum maintenance. It is only necessary to keep the external surfaces clean and free from dust. To give added protection when the unit is not in use the unit should be disconnected from the mains supply and covered with the optional dust cover (060 406).

  • Page 22: Section 6 - Optional Accessories

    SECTION 6 - Optional Accessories OPTIONAl ACCESSOrIES 060 406 Dust cover 037 701 Printer supplied with roll of thermal paper, serial connection lead, power supply, power connection lead (UK) and pouch 037 801 Interface cable kit 050 501 DataWay PC Software - includes CD-ROM, interface cable and instructions 037 551 RS232 to USB converter for use with computers without a serial port Conductivity Cells...

  • Page 23: Section 7 - Interfacing

    SECTION 7 - Interfacing ANAlOguE All units are provided with 2 x 4mm sockets, marked as ANALOG OUT, on the rear panel. An analogue output voltage of 1mV per least significant digit is available from these sockets. Recorder output ±2000mV, proportional to displayed reading: rS232 The Bi-directional RS232 interface is available on the rear panel 9 way D type connector.

  • Page 24: Keypad Emulation

    The RS232 communications parameters on the computer or printer need to be set to match those of the Model 4510, as detailed below: 1200 Baud 9600 Baud 7 Data Bits 8 data bits Odd Parity No parity 1 Stop Bit 1 stop bit Setting of these options is detailed in Section 4.1.7.

  • Page 25: Example Printout

    This will be followed by results data in a format which is dependant upon the operating mode selected. Details will also be given on the temperature of the measurement. An asterisk (*) after the sample number indicates that an endpoint was reached with the measurement.

  • Page 26: Section 8 - Troubleshooting And Functional Checks

    SECTION 8 - Troubleshooting and Functional Checks TrOuBlEShOOTINg Fault Possible Cause Action No display Check power supply Check that correct 9V AC power supply is connected and switched on Erratic display Check power supply Unit must be used with supplied 9V AC power supply.

  • Page 27: Functional Checks

    FuNCTIONAl ChECkS The measurement functions of the meter can be checked using two 10K ohm resistors. One resistor is used for checking the ATC function and both resistors are used together for checking the conductivity function. Temperature Input Check 1. Disconnect all inputs from the 4510 except the power supply. The display should indicate 25.0˚C MAN (or the temperature entered as the manual temperature value in the Temperature Setup menu) 2.

  • Page 28: Reset Procedure

    Figure 8.2.2 - Conductivity cell input connections 7. The four lead ends should be inserted in the sockets of the conductivity cell connector as shown in figure 8.2.2 8. The conductivity reading should be between 180 and 220µS. If this functions correctly then any problem is most likely to be associated with the cell – if it fails to work correctly contact your local distributor or Jenway for service advice.

  • Page 29: Ec Declaration Of Conformity

    Bibby Scientific ltd T/as Jenway Gransmore Green Felsted Dunmow Essex CM6 3LB United Kingdom Tel +44 (0)1371 820122 Fax +44 (0)1371 821083 www.jenway.com Registered office: 4 Felstead Gardens Ferry Street London E14 3BS Registered No. 6381141 BS EN ISO 9001: 2000 registered company EC Declaration of Conformity JENWAY Model 4510 Conductivity/TDS Meter complies with the following European Standards:...
  • Page 30 Bibby Scientific ltd Bibby Scientific France SAS Bibby Scientific Italia Srl Beacon Road Stone ZI du Rocher Vert - BP 79 Via Alcide de Gasperi 56 Staffordshire ST15 0SA 77793 Nemours Cedex 20077 Riozzo di Cerro al Lambro United Kingdom France Milano Italia Tel: +44 (0)1785 812121...

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