wtw Cond 7310 Operating Manual
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wtw Cond 7310 Operating Manual

Conductivity meter
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OPERATING MANUAL
ba75933e04 06/2013
Cond 7310P
Cond 7310
Cond 7310
CONDUCTIVITY METER

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Summary of Contents for wtw Cond 7310

  • Page 1 OPERATING MANUAL ba75933e04 06/2013 Cond 7310P Cond 7310 Cond 7310 CONDUCTIVITY METER...
  • Page 2 For the most recent version of the manual, please visit www.WTW.com. Copyright © Weilheim 2013, WTW GmbH Reproduction in whole - or even in part - is prohibited without the express written permission of WTW GmbH, Weilheim. Printed in Germany. ba75933e04 06/2013...

  • Page 3: Table Of Contents

    Cond 7310 meter ........6...
  • Page 4 MultiLab Importer ........42 Printer (only Cond 7310 P)......43 Commissioning / switching the printer on or off .
  • Page 5 Cond 7310 Contents 10.1.1 General maintenance activities ....46 10.1.2 Replacing the batteries......46 10.2 Cleaning.

  • Page 6: Overview

    Overview Cond 7310 Overview Cond 7310 meter The Cond 7310 compact precision conductivity meter enables you to perform conductivity measurements quickly and reliably. The Cond 7310 provides the maximum degree of operating comfort, reliability and measuring certainty for all applications.

  • Page 7: Cond 7310P Meter

    4 Printer 5 Control panel of the printer Sensors A measuring system ready to measure consists of the Cond 7310 meter and a suitable sensor. Suitable sensors are conductivity measuring cells. Information on available sensors is given on the Internet and in the WTW catalog, "Laboratory and field instrumentation".

  • Page 8: Safety Instructions

    Safety instructions Cond 7310 Safety instructions Safety information 2.1.1 Safety information in the operating manual This operating manual provides important information on the safe operation of the meter. Read this operating manual thoroughly and make yourself familiar with the meter before putting it into operation or working with it. The operating manual must be kept in the vicinity of the meter so you can always find the infor- mation you need.

  • Page 9: Safe Operation

    Cond 7310 Safety instructions Safe operation 2.2.1 Authorized use This meter is authorized exclusively for conductivity measurements in the labo- ratory. Only the operation and running of the meter according to the instructions and technical specifications given in this operating manual is authorized (see section 12 T , page 50).

  • Page 10: Commissioning

    – comprehensive operating manual – software MultiLab Importer Power supply The Cond 7310 is supplied with power in the following ways:  Mains operation with the supplied power pack.  Battery operation (4 x alkaline manganese batteries, type AA)  USB operation via a connected USB-B cable.

  • Page 11: Inserting The Batteries

    Cond 7310 Commissioning 3.3.1 Inserting the batteries You can operate the meter either with normal batteries or with rechargeable batteries (Ni-MH). In order to charge the batteries, an external charging device is required. 1 Battery compartment Open the battery compartment (1) on the underside of the meter.

  • Page 12: Connecting The Power Pack

    ECHNICAL DATA page 50). Connect the plug of the power pack to the socket for the power pack on the Cond 7310. Connect the original power pack to an easily accessible power outlet. 3.3.3 Mounting the stand The stand base can be mounted at the right side of the meter.

  • Page 13: Operation

    Cond 7310 Operation Operation General operating principles 4.1.1 Keypad In this operating manual, keys are indicated by brackets <..> . The key symbol (e.g. <ENTER>) generally indicates a short keystroke (under 2 sec) in this operating manual. A long keystroke (approx. 2 sec) is indicated by the underscore behind the key symbol (e.g.

  • Page 14: Display

    Operation Cond 7310 4.1.2 Display 1417 μS/cm 25.0 °C [Tr25][nLF][ 0.479 1/cm] HOLD AR 01.07.2011 Menu USB output 08:00 1 Status information (sensor) 2 Measured value (with unit) 3 Measured parameter 4 Sensor symbol (calibration evaluation, calibration interval) 5 Measured temperature (with unit)

  • Page 15: Socket Field

    Cond 7310 Operation 4.1.4 Socket field 1 Conductivity measuring cell 2 Mini USB-B interface 3 Power pack 4 Service interface CAUTION Only connect measuring cells to the meter that cannot return any voltages or currents that are not allowed (> SELV and >...

  • Page 16: Switching Off The Meter

    Operation Cond 7310 Switching off the meter Switch the printer off with <On/Off>. Automatic switch-off The instrument has an automatic switch-off function in order to save the batteries (see section 6.2.1 S , page 32). The automatic switchoff function YSTEM switches off the meter if no key is pressed for an adjustable period.

  • Page 17: Measured Value Display (Measuring Mode)

    Cond 7310 Operation 4.4.2 Measured value display (measuring mode) In the measured value display, open the setting menus with the <F1> softkey. The current functions of the softkeys are shown on the display.  Use <F1>/[Menu] (short pressure) to open the menu for calibration and measurement settings for the displayed measured parameter.

  • Page 18: Example 1 On Navigation: Setting The Language

    Operation Cond 7310 General Language: Deutsch Beep: Illumination: Contrast: 48 % Switchoff time: 30 min 01.07.2011 Back 08:00  Functions Functions are designated by the name of the function. They are immediately carried out by confirming with <ENTER>. Example: Display the Calibration record function.
  • Page 19 Cond 7310 Operation ϰ 1417 µS/cm 25.0 °C [Tr25][nLF][ 0.479 1/cm] 01.07.2011 Menu USB output 08:00 Using <F1_>/[Menu], open the Storage & config menu. The instrument is in the setting mode. Storage & config System Data storage 01.07.2011 Back 08:00 Select the System submenu with <><>.

  • Page 20: Example 2 On Navigation: Setting The Date And Time

    Operation Cond 7310 General Language: Deutsch Beep: Illumination: Contrast: 48 % Switchoff time: 30 min 01.07.2011 Back 08:00 Open the setting mode for the Language with <ENTER>. General Language: Deutsch Beep: Illumination: Contrast: 48 % Switchoff time: 30 min 01.07.2011...
  • Page 21 Cond 7310 Operation Setting the date, The date format can be switched from the display of day, month, year time and date format (dd.mm.yyyy) to the display of month, day, year (mm/dd/yyyy or mm.dd.yyyy). In the measured value display: Using <F1_>/[Menu], open the Storage & config menu.

  • Page 22: Conductivity

    Conductivity Cond 7310 Conductivity Measuring 5.1.1 Measuring the conductivity NOTE When connecting a grounded PC, measurements cannot be performed in grounded media as the values would be incorrect. The USB interface is not galvanically isolated. Connect the conductivity measuring cell to the measuring instrument.
  • Page 23 Cond 7310 Conductivity The factor to calculate the total dissolved solids is set to 1.00 in the factory. You can adjust this factor to meet your requirements in the range 0.40 ... 1.00. The factor is set in the Measurement menu for the parameter, TDS.

  • Page 24: Measuring The Temperature

    Conductivity Cond 7310 Criteria for a stable The Stability control function checks whether the measured values are stable measured value within the monitored time interval. Measured Time interval Stability in the time interval parameter ϰ Conductivity 10 seconds Δ : Better than 1.0% of measured value...

  • Page 25: Calibration Data

    Cond 7310 Conductivity  0.800 ... 0.880 cm (e.g. KLE 325 with a nominal cell constant of 0.840 The cell constant is determined in the control standard, 0.01 mol/l KCl. Cell constants outside the ranges quoted above cannot be calibrated.
  • Page 26 Conductivity Cond 7310 Subsequently, you can transmit the displayed calibration data to the interface, e. g. to a PC, with <F2>[USB output]. Displaying the cali- The calibration records of the last calibrations (up to 10) are available in the bration data storage menu, <F1>/[Menu] / Calibration / Calibration data storage and in the menu,...
  • Page 27 Cond 7310 Conductivity Calibration record inoLab Cond 7310 (example) Ser. no. 11292113 CALIBRATION Cond 01.07.2011 16:13:33 Ser. no. 10501234 Cell constant 0.479 1/cm 25.0 °C Sensor ba75933e04 06/2013...

  • Page 28: Settings

    Settings Cond 7310 Settings Measurement settings 6.1.1 Changing the settings for conductivity measuring cells The settings are made in the Measurement menu for the measured parameter, conductivity. To open the settings, display the required parameter in the mea- sured value display and press the <F1>/[menu] or <ENTER> key. After com- pleting the settings, switch to the measured value display with <M>.
  • Page 29 Cond 7310 Settings Menu item Possible Description setting Calibration / 1 ... 150 ... Calibration interval for the measuring Calibration inter- 999 d cell (in days). The meter reminds you to calibrate regularly by the flashing sensor symbol in the measuring screen.

  • Page 30: Calibration Interval

    Settings Cond 7310 Menu item Possible Description setting Measurement / 20 °C Reference temperature Temp. comp. 25 °C (TC) This setting is only available for the ϰ ρ /Reference temp. measured parameters, Measurement 0.40 ... 1.00 Factor for TDS value...

  • Page 31: Temperature Compensation

    Cond 7310 Settings 6.1.3 Temperature compensation The calculation of the temperature compensation is based on the preset refer- ence temperature, 20 °C or 25 °C. It appears on the display as Tr20 or Tr25. You can select one of the following temperature compensation methods: ...

  • Page 32: Sensor-Independent Settings

    Settings Cond 7310 Sensor-independent settings 6.2.1 System To open the Storage & config menu, press the <F1_>[Menu] key in the mea- sured value display. After completing the settings, switch to the measured value display with <M>. Default settings are printed in bold.

  • Page 33: Data Storage

    Cond 7310 Settings Menu item Possible set- Description ting System /Clock Time Settings of time and date. Date For details, see section 4.4.5 Date format XAMPLE ON NAVIGATION , page 20 TING THE DATE AND TIME System /Service infor- Hardware version and software...

  • Page 34: Resetting The System Settings

    Settings Cond 7310 Setting Default settings Reference temperature 25 °C Temperature coefficient (TC) of the 2.000 %/K linear temperature compensation TDS factor 1,00 Stability control Temperature unit °C The sensor settings are reset under the Reset menu item in the menu for cali- bration and measurement settings.

  • Page 35: Data Storage

    Cond 7310 Data storage Data storage You can transmit measured values (datasets) to the data storage:  Manual storage (see section 7.1 M , page 35) ANUAL DATA STORAGE  Automatic storage at intervals (see section 7.2 A UTOMATIC DATA STORAGE AT...

  • Page 36: Automatic Data Storage At Intervals

    Data storage Cond 7310  To erase the entire data storage, confirm Yes.  To cancel the storage process and switch to the measured value display, confirm No. Then you can e.g. transmit the stored data to a PC (see section 7.3.1 D...
  • Page 37 Cond 7310 Data storage Settings You can configure the automatic storage function with the following settings: Menu item Possible set- Description ting ID number 1 ... 10000 ID number for the dataset series. Interval 1 s, 5 s, 10 s, Storage interval.

  • Page 38: Measurement Data Storage

    Data storage Cond 7310 saving mode switches off functions of the meter that are not required for the automatic storage of measurement data (such as the display). By pressing any key the energy saving mode is switched off again. Terminating the...
  • Page 39 C = 0.479 1/cm, Tref 25, nLF 01.07.2011 Back USB output 08:00 Representation of a 01.07.2011 09:27:20 dataset inoLab Cond 7310 Ser. No. 12345678 (USB output) ID number 1 Cond 99.8 µS/cm 25.0 °C, AR, S: +++ ________________________________________ 01.07.2011 09:56:24 inoLab Cond 7310 Ser.

  • Page 40: Erasing The Measurement Data Storage

    AR indicator.  Calibration evaluation: +++, ++, +, -, or no evaluation 7.3.4 Storage locations The Cond 7310 meter has two measurement data storages. The measured val- ues recorded either manually or automatic are stored separately in individual measurement data storages.

  • Page 41: Transmitting Data (Usb Interface)

    Cond 7310 Transmitting data (USB interface) Transmitting data (USB interface) Options for data transmission Via the USB interface you can transmit data to a PC. The following table shows which data are transmitted to the interface in which way: Data...

  • Page 42: Connecting A Pc

    Transmitting data (USB interface) Cond 7310 Connecting a PC Connect the Cond 7310 to the PC via the USB interface. NOTE When connecting a grounded PC, measurements cannot be performed in grounded media as the values would be incorrect. The USB interface is not galvanically isolated.

  • Page 43: Printer (Only Cond 7310 P)

    4 Lid of the paper compartment Commissioning / switching the printer on or off Switching on the Connect the power pack to the Cond 7310 P. printer The LED lights up green. The printer is ready for operation. If the printer was switched off (LED flashing): Switch on the printer with <ON/OFF>.

  • Page 44: Operation / Printing

    Printer (only Cond 7310 P) Cond 7310 Operation / printing Data are only output to the printer if the following conditions are met  Data are transmitted manually or automatically (see section 8.1 O PTIONS , page 41) FOR DATA TRANSMISSION ...

  • Page 45: What To Do If

    Cond 7310 Printer (only Cond 7310 P) Use original WTW rolls of paper only. You will find information on this in the WTW catalog L or on ABORATORY AND IELD NFORMATION the Internet. The thermal paper will remain legible for at least 7 years if stored appropriately.

  • Page 46: Maintenance, Cleaning, Disposal

    Maintenance, cleaning, disposal Cond 7310 Maintenance, cleaning, disposal 10.1 Maintenance 10.1.1 General maintenance activities The only maintenance activity required is replacing the batteries. See the relevant operating manuals of the measuring cells for instructions on maintenance. 10.1.2 Replacing the batteries You can operate the meter either with normal batteries or with rechargeable batteries (Ni-MH).

  • Page 47: Cleaning

    Cond 7310 Maintenance, cleaning, disposal Set the date and time (see section 4.4.5 E XAMPLE ON NAVIGATION , page 20) ETTING THE DATE AND TIME When the batteries are nearly empty, the status indicator is displayed. Dispose of used batteries according to the local regulations of your country.

  • Page 48: What To Do If

    What to do if... Cond 7310 What to do if... 11.1 Conductivity More information, as well as instructions on how to clean and exchange a sensor is given in the documentation of your sensor. Error message The measured value is outside the measuring range.
  • Page 49 Cond 7310 What to do if... You want to know Cause Remedy which software – E. g., a question by the service – Switch on the meter. version is in the department Open the menu, <F1_> / meter [Menu] / Storage & config / SystemService information.

  • Page 50: Technical Data

    Technical data Cond 7310 Technical data 12.1 Measuring ranges, resolution, accuracy Measuring ranges, Parameter Measuring range Resolution resolution ϰ [µS/cm] 0.000 ... 1.999* 0.001 0.00 ... 19.99** 0.01 0.0 ... 199.9 200 ... 1999 ϰ [mS/cm] 2.00 ... 19.99 0.01 20.0 ...
  • Page 51 Cond 7310 Technical data Cell constants Cell constant C Values Can be calibrated in 0.450 ... 0.500 cm the ranges 0.800 ... 0.880 cm Adjustable 0.090 ... 0.110 cm 0.010 cm (fixed) 0.250 ... 25.000 cm Reference temperature Reference tempera-...

  • Page 52: General Data

    Technical data Cond 7310 12.2 General data Dimensions Cond 7310: Approx. 240 x 190 x 80 mm Cond 7310 P: Approx. 290 x 190 x 80 mm Weight Cond 7310: Approx. 0.8 kg Cond 7310 P: Approx. 1.0 kg Mechanical structure...
  • Page 53 Cond 7310 Technical data Meter safety EC directive 2006/95/EC EN 61010-1 IP protection class EN 60529 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. These...

  • Page 54: Firmware Update

     a free USB interface (virtual COM port) on the PC  the driver for the USB interface (on the enclosed CD-ROM)  the USB cable (included in the scope of delivery of the Cond 7310). Install the downloaded firmware update on a PC.

  • Page 55: Glossary

    Cond 7310 Glossary Glossary Conductivity Cell constant C Characteristic quantity of a conductivity measuring cell, depending on the geometry. Conductivity Short form of the expression, specific electrical conductivity. It corresponds to the reciprocal value of the resistivity. It is a measured value of the ability of a substance to conduct an electric current.
  • Page 56 Glossary Cond 7310 Measured parameter The measured parameter is the physical dimension determined by measuring, e. g. pH, conductivity or D.O. concentration. Measured value The measured value is the special value of a measured parameter to be determined. It is given as a combination of the numerical value and unit (e.

  • Page 57: Index

    Cond 7310 Index Index Automatic switch-off ....16 Print ......41 AutoRead .
  • Page 58 Index Cond 7310 ba75933e04 06/2013...
  • Page 60 For more information on how Xylem can help you, go to www.xyleminc.com Wissenschaftlich-Technische Werkstätten GmbH Dr.-Karl-Slevogt-Straße 1 D-82362 Weilheim Germany Tel: +49 881 183-0 Fax: +49 881 183-420 E-Mail: info@wtw.com Internet: www.wtw.com...

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Cond 7310p

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