Xylem WTW Oxi 3205 Operating Manual
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Xylem WTW Oxi 3205 Operating Manual

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OPERATING MANUAL
ba75797e05 12/2017
Oxi 3205
DISSOLVED OXYGEN (D.O.) METER

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Summary of Contents for Xylem WTW Oxi 3205

  • Page 1 OPERATING MANUAL ba75797e05 12/2017 Oxi 3205 DISSOLVED OXYGEN (D.O.) METER...
  • Page 2 Oxi 3205 Copyright © 2017 Xylem Analytics Germany GmbH Printed in Germany. ba75797e05 12/2017...

  • Page 3: Table Of Contents

    Oxi 3205 Contents Oxi 3205 - Contents Overview ........5 Keypad .
  • Page 4 Contents Oxi 3205 What to do if........33 Technical data .

  • Page 5: Overview

    Oxi 3205 Overview Overview The Oxi 3205 compact precision dissolved oxygen (D.O.) meter enables you to perform D.O. measurements quickly and reliably. The Oxi 3205 provides the maximum degree of operating comfort, reliability and measuring certainty for all applications. The proven OxiCal calibration procedure supports you in your work with the D.O.

  • Page 6: Keypad

    Overview Oxi 3205 Keypad Oxi 3205 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. <ENTER >).

  • Page 7: Display

    Oxi 3205 Overview Display 7.92 mg/l 25.0 °C [Sal] Status information Measured value (with unit) Measured parameter Sensor symbol (calibration evaluation, calibration interval) Measured temperature (with unit) Status line Function display Error An error occurred during calibration indicators ba75797e05 12/2017...

  • Page 8: Socket Field

    Overview Oxi 3205 Socket field Connectors: D.O. sensor Service interface Caution Only connect D.O. sensors to the meter that cannot return any voltages or currents that are not allowed (> SELV and > current circuit with current limiting). Almost all customary D.O. sensors fulfill these conditions. ba75797e05 12/2017...

  • Page 9: Safety

    Oxi 3205 Safety Safety This operating manual contains basic instructions that you must follow during the commissioning, operation and maintenance of the meter. Consequently, all responsible personnel must read this operating manual before working with the meter. The operating manual must always be available within the vicinity of the meter.

  • Page 10: Authorized Use

    Safety Oxi 3205 Authorized use The authorized use of the meter consists exclusively of the measurement of dissolved oxygen and temperature of liquid media in a field and laboratory environment. The technical specifications as given in chapter 7 T must ECHNICAL DATA be observed.
  • Page 11 Oxi 3205 Safety Safe operation If safe operation is no longer possible, the meter must be taken out of service and secured against inadvertent operation! Safe operation is no longer possible if the meter:  has been damaged in transport ...
  • Page 12 Safety Oxi 3205 ba75797e05 12/2017...

  • Page 13: Commissioning

    Oxi 3205 Commissioning Commissioning Scope of delivery  D.O. meter Oxi 3205  4 batteries 1.5 V Mignon type AA  Short instructions  CD-ROM with detailed operating manual Initial commissioning Inserting the batteries Unscrew the two screws (1) on the underside of the meter. Open the battery compartment (2) on the underside of the meter.
  • Page 14 Commissioning Oxi 3205 Close the battery compartment (2) and tighten the screws (1). Switching on the meter Press the <On/Off> key. The meter performs a self-test. The display shows the manufacturer's logo while the self-test is being performed. Subsequently, the meter switches to the measuring mode (measured value display).

  • Page 15: Operation

    Oxi 3205 Operation Operation Switching on the meter Switching on Press the <On/Off> key. The meter performs a self-test. The display shows the manufacturer's logo while the self-test is being performed. The measured value display appears. 7.92 mg/l 25.1 °C 22.09.2008 Menu 08:00...

  • Page 16: General Operating Principles

    Operation Oxi 3205 General operating principles This section contains basic information on the operation of the Oxi 3205. Operating elements, An overview of the operating elements and the display is given in display section 1.1 and section 1.2. Operating modes, An overview of the operating modes and navigation of the Oxi 3205 is navigation given in section 4.2.1 and section 4.2.2.

  • Page 17: Navigation

    Oxi 3205 Operation 4.2.2 Navigation Measured value display In the measured value display, you can  Open the menu for calibration and measurement settings with <ENTER> (short keystroke)  Open the Configuration menu with the sensor-independent settings with <ENTER > (long keystroke (approx. 2 s). ...
  • Page 18 Operation Oxi 3205 Messages Information is marked by the symbol. It cannot be selected. Example: Calibration record Calibration interval 14 d Temperature unit °C Sal correction Reset Air pressure = 941 mbar Note The principles of navigation are explained in the section "Setting the language"...

  • Page 19: Example On Navigation: Setting The Language

    Oxi 3205 Operation 4.2.3 Example on navigation: Setting the language Press the <On/Off> key. The measured value display appears. The instrument is in the measuring mode. 7.92 mg/l 25.1 °C Using <ENTER > open the Configuration menu. The instrument is in the setting mode. Configuration Language: English...
  • Page 20 Operation Oxi 3205 Configuration Language: Deutsch Illumination Contrast 48 % Switchoff time 30 min Service information Reset Select the required language with < >< >. Confirm the setting with <ENTER>. The meter switches to the measuring mode. The selected language is active. ba75797e05 12/2017...

  • Page 21: Sensor-Independent Settings

    Oxi 3205 Operation Sensor-independent settings 4.3.1 Setting in the Configuration menu To open the Configuration menu, press the <ENTER > key in the measured value display. After completing the settings, switch to the measured value display with <M>. Menu item Setting Description Language...

  • Page 22: Dissolved Oxygen

    Operation Oxi 3205 Dissolved oxygen 4.4.1 General information You can measure the following parameters:  D.O. concentration  D.O. saturation index ("D.O. saturation")  D.O. partial pressure D.O. measurements with the Oxi 3205 can be carried out with the CellOx 325 or DurOx 325 D.O. sensor. The measuring instrument automatically recognizes the type of the connected D.O.

  • Page 23: Measuring

    Oxi 3205 Operation 4.4.2 Measuring You can carry out D.O. measurements as follows: Perform the preparatory activities according to section 4.4.1. Immerse the D.O. sensor in the test sample. 7.92 mg/l 25.1 °C Selecting the You can switch between the following displays with <M>: displayed ...

  • Page 24: Settings For D.o. Sensors

    Operation Oxi 3205 4.4.3 Settings for D.O. sensors (menu or measurement and calibration settings) The settings are available in the menu for measurement and calibration settings. To open the settings, display the required parameter in the measured value display and press the <ENTER> or <ENTER> key. After completing the settings, switch to the measured value display with <M>.

  • Page 25: Calibration

    Oxi 3205 Operation 4.4.4 D.O. calibration Why calibrate? D.O. sensors age. This changes the slope of the D.O. sensor. Calibration determines the current slope of the sensor and stores this value in the instrument.  After connecting another D.O. sensor When to calibrate? ...
  • Page 26 Operation Oxi 3205 Calibration evaluation After the calibration, the measuring instrument automatically evaluates the current status of the calibration. The evaluation appears on the display and in the calibration record. Display Calibration record Relative slope S = 0.8 ... 1.25 S = 0.7 ...

  • Page 27: Displaying Calibration Records

    Oxi 3205 Operation 0.88 25.1 °C OxiCal Start the measurement with <ENTER>. The measured value is checked for stability (stability control). The [AR] status indicator is displayed. The measured parameter flashes. Wait for the end of the AutoRead measurement or accept the calibration value with <ENTER>.

  • Page 28: Reset

    Operation Oxi 3205 Reset You can reset (initialize) all sensor settings and sensor-independent settings separately from each other. 4.5.1 Resetting the measurement settings Note The calibration data are reset to the default settings together with the measuring parameters. Recalibrate after performing a reset. The following settings for D.O.

  • Page 29: Resetting The System Settings

    Oxi 3205 Operation 4.5.2 Resetting the system settings The following system settings can be reset to the delivery status: Setting Default settings Language English Contrast 50 % Illumination Auto Switchoff time The system settings are reset in the menu, Configuration / System / Reset.
  • Page 30 Operation Oxi 3205 ba75797e05 12/2017...

  • Page 31: Maintenance, Cleaning, Disposal

    Oxi 3205 Maintenance, cleaning, disposal Maintenance, cleaning, disposal Maintenance The only maintenance activity required is replacing the batteries. Note See the relevant operating manuals of the D.O. sensors for instructions on maintenance. 5.1.1 Replacing the batteries Unscrew the two screws (1) on the underside of the meter. Open the battery compartment (2) on the underside of the meter.

  • Page 32: Cleaning

    Maintenance, cleaning, disposal Oxi 3205 Close the battery compartment (2) and tighten the screws (1). Cleaning Occasionally wipe the outside of the measuring instrument with a damp, lint-free cloth. Disinfect the housing with isopropanol as required. Caution The housing is made of synthetic material (ABS). Thus, avoid contact with acetone or similar detergents that contain solvents.

  • Page 33: What To Do If

    Oxi 3205 What to do if... What to do if... Error message, Cause Remedy – Measured value outside the – Use a suitable D.O. sensor measuring range Error message, Cause Remedy Error – D.O. sensor contaminated – Clean D.O. sensor and replace it if necessary Sensor symbol flashes Cause...
  • Page 34 What to do if... Oxi 3205 ba75797e05 12/2017...

  • Page 35: Technical Data

    Oxi 3205 Technical data Technical data General data Dimensions approx. 180 x 80 x 55 mm Weight approx. 0.4 kg Mechanical structure Type of protection IP 67 Electrical safety Protective class Test certificates Ambient Storage - 25 °C ... + 65 °C conditions Operation -10 °C ...

  • Page 36: Measuring Ranges, Resolution, Accuracy

    Technical data Oxi 3205 Measuring ranges, resolution, accuracy Measuring ranges, Note: The values quoted in brackets apply especially for the resolution DurOx 325 sensor. Parameter Measuring range Resolution D.O. concentration 0 ... 20.00 (0 ... 20.0) 0.01 (0.1) [mg/l] 0 ... 90.0 (0 ... 90) 0.1 (1) Saturation [%] 0 ...
  • Page 37 Oxi 3205 Technical data 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 limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
  • Page 38 Technical data Oxi 3205 ba75797e05 12/2017...

  • Page 39: Lists

    Oxi 3205 Lists Lists This chapter provides additional information and orientation aids. 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. Index The index will help you to find the topics that you are looking for.
  • Page 40 Lists Oxi 3205 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 according to IOT is used for oceanographic monitoring.
  • Page 41 Oxi 3205 Lists Index Air calibration beaker ....25 Safety ......9 Authorized use .
  • Page 42 Lists Oxi 3205 ba75797d05 12/2017...
  • Page 44 Xylem also provides a leading portfolio of smart metering, network technologies and advanced analytics solutions for water, electric and gas utilities. In more than 150 countries, we have strong, long-standing relationships with customers who know us for our powerful combination of leading product brands and applications expertise with a strong focus on developing comprehensive, sustainable solutions.

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