Operating manual Oxi 3210 O2 [Sal] Men u 7.92 25.0 mg/l 15.1 1 08:3.2008 7 Dissolved oxygen (D.O.
Oxi 3210 Accuracy when going to press Copyright The use of advanced technology and the high quality standard of our instruments are the result of a continuous development. This may result in differences between this operating manual and your meter. 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.
Oxi 3210 Contents Oxi 3210 - Contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 1.2 1.3 2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.1 2.2 3 4.3 4.4 4.5 03/2009 Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.1 Inserting the batteries. . . . . . . . . . . . . . . . . . . . . 3.2.
Contents Oxi 3210 4.6 5 Maintenance, cleaning, disposal . . . . . . . . . . . . . . . . . 39 5.1 5.2 5.3 5.4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.1 Replacing the batteries . . . . . . . . . . . . . . . . . . . . Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oxi 3210 Overview 1 Overview The Oxi 3210 compact precision dissolved oxygen (D.O.) meter enables you to perform D.O. measurements quickly and reliably. The Oxi 3210 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. meter. 3 O2 [Sal] Men u 7.92 25.0 mg/l 2 15.1 1 08:3.
Overview Oxi 3210 1.1 Keypad F1 F2 M CAL AR RCL STO ENTER Oxi 3210 In this operating manual, keys are indicated by brackets <..> . The key symbol (e.g. ) 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. ). _ Softkey providing situation dependent functions, e.g.
Oxi 3210 Overview ENTER : : AR Opens the menu for measurement settings / confirms entries Opens the menu for system settings Freezes the measured value (HOLD function) Switches the AutoRead measurement on or off 1.2 Display 3 O2 7.92 2 mg/l 25.0 °C 1 HOLD AR Menü Function display indicators ba75795e02 03/2009 22.09.
Overview Oxi 3210 1.3 Socket field 1 2 Connectors: 1 D.O. sensor 2 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.
Oxi 3210 Safety 2 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. Target group Safety instructions The meter was developed for work in the field and in the laboratory.
Safety Oxi 3210 2.1 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 TECHNICAL DATA must be observed. Only the operation and running of the meter according to the instructions given in this operating manual is authorized. Any other use is considered unauthorized. 2.
Oxi 3210 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: z has been damaged in transport z has been stored under adverse conditions for a lengthy period of time z is visibly damaged z no longer operates as described in this manual. If you are in any doubt, please contact the supplier of the meter.
Safety 12 Oxi 3210 ba75795e02 03/2009
Oxi 3210 Commissioning 3 Commissioning 3.1 Scope of delivery z D.O. meter Oxi 3210 z 4 batteries 1.5 V Mignon type AA z Short instructions z CD-ROM with detailed operating manual 3.2 Initial commissioning Perform the following activities: z Insert the supplied batteries z Switch on the meter z Set the date and time 3.2.1 Inserting the batteries 1 Unscrew the two screws (1) on the underside of the meter. 2 Open the battery compartment (2) on the underside of the meter.
Commissioning Oxi 3210 Note Alternatively, you can also use Ni-MH rechargeable batteries (type Mignon AA). In order to charge the batteries, an external charging device is required. Caution Make sure that the poles of the batteries are positioned correctly. The ± signs on the batteries must correspond to the ± signs in the battery compartment. 4 3.2.2 1 Close the battery compartment (2) and tighten the screws (1). Switching on the meter Press the key. The meter performs a self-test.
Oxi 3210 Operation Switching on 4 Operation 4.1 Switching on the meter Press the 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. O2 7.92 mg/l 25.1 °C Menu Switching off 22.09.2008 08:00 Press the key. Automatic switch-off function The instrument has an automatic switch-off function in order to save the batteries (see section 4.3.1).
Operation Oxi 3210 4.2 General operating principles This section contains basic information on the operation of the Oxi 3210. Operating elements, display Operating modes, navigation An overview of the operating elements and the display is given in section 1.1 and section 1.2. An overview of the operating modes and navigation of the Oxi 3210 is given in section 4.2.1 and section 4.2.2. 4.2.
Oxi 3210 Operation 4.2.2 Measured value display Navigation In the measured value display, you can z Open the menu for calibration and measurement settings with (short keystroke) z Open the Storage & config menu with the sensor-independent settings with (long keystroke (approx. 2 s). _ z Change the display in the measurement window by pressing (e.g. D.O. concentration −> D.O. saturation index −> D.O. partial pressure −>).
Operation Oxi 3210 z Functions Functions are designated by the name of the function. They are immediately carried out by confirming with . Example: Display the Calibration record function. O2 Calibration record Calibration interval: Back Messages 150 d 22.09.2008 08:00 Information is marked by the i symbol. It cannot be selected. Example: O2 Calibration Temperature unit Sal correction Salinity Stability control Reset °C On 21.7 On i Air pressure = 941 mbar Back 22.09.
Oxi 3210 Operation 4.2.3 1 Example 1 on navigation: Setting the language Press the key. The measured value display appears. The instrument is in the measuring mode. O2 7.92 mg/l 25.1 °C Menu 2 22.09.2008 08:00 _ Using /[Menu] open the Storage & config menu. The instrument is in the setting mode. Storage & config System Data storage Back ba75795e02 03/2009 22.09.2008 08:00 3 Select the System submenu with <▲><▼>. The current selection is displayed with a frame.
Operation Oxi 3210 System General Clock Service information Reset Back 22.09.2008 08:00 5 Select the General submenu with <▲><▼>. The current selection is displayed with a frame. 6 Open the General submenu with . General Language: Beep: Illumination: Contrast: Switchoff time: 22.09.2008 08:00 Back 7 English Off On 48 % 30 min Open the setting mode for the Language with . General Language: Beep: Illumination: Contrast: Switchoff time: Back 8 20 English Off On 48 % 30 min 22.
Oxi 3210 Operation 9 ba75795e02 03/2009 Confirm the setting with . The meter switches to the measuring mode. The selected language is active.
Operation Oxi 3210 4.2.4 Example 2 on navigation: Setting the date and time The measuring instrument has a clock with a date function. The date and time are indicated in the status line of the measured value display. When storing measured values and calibrating, the current date and time are automatically stored as well.
Oxi 3210 ba75795e02 Operation 03/2009 4 Change and confirm the setting with <▲><▼> and . The minutes are highlighted. 5 Change and confirm the setting with <▲><▼> and . The seconds are highlighted. 6 Change and confirm the setting with <▲><▼> and . The time is set. 7 If necessary, set the Date and Date format. The setting is made similarly to that of the time. 8 To make further settings, switch to the next higher menu level with [Back].
Operation Oxi 3210 4.3 Sensor-independent settings The Storage & config menu comprises the following settings: z System (see section 4.3.1). z Data storage (see section 4.3.2) 4.3.
Oxi 3210 Operation Menu item Setting Description System /Reset - Resets the system settings to the default values. For details, see section 4.6.2 4.3.2 Data storage This menu contains all functions to display, edit and erase stored measured values. Note Detailed information on the storage functions of the Oxi 3210 is given in section 4.5. 4.3.3 Automatic Stability control The function, automatic Stability control (AutoRead) continually checks the stability of the measurement signal.
Operation Oxi 3210 4.4 Dissolved oxygen 4.4.1 General information You can measure the following parameters: z D.O. concentration z D.O. saturation index ("D.O. saturation") z D.O. partial pressure D.O. measurements with the Oxi 3210 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. sensor. Temperature measurement Preparatory activities The CellOx 325 and DurOx 325 D.O.
Oxi 3210 Operation 4.4.2 Measuring You can carry out D.O. measurements as follows: 1 Perform the preparatory activities according to section 4.4.1. 2 Immerse the D.O. sensor in the test sample. O2 7.92 mg/l 25.1 °C [Sal] Menu Selecting the displayed measured parameter 22.09.2008 08:00 You can switch between the following displays with : z D.O. concentration [mg/l] z D.O. saturation [%] z D.O. partial pressure [mbar].
Operation Oxi 3210 2 Stability control (AutoRead ) Release the frozen measured value again with . The HOLD function is switched off. The [HOLD] status display disappears. The stability control function (AutoRead) continually checks the stability of the measurement signal. The stability has a considerable impact on the reproducibility of measured values. The display of the measured parameter flashes until a stable measured value is available.
Oxi 3210 Operation 4.4.3 Overview Settings for D.O. sensors (menu or measurement and calibration settings) The following settings are possible for D.O. sensors: z Salinity correction z Salinity (salinity equivalent) z Calibration interval z Automatic Stability control Settings ba75795e02 03/2009 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 /[menu] or key.
Operation 30 Oxi 3210 Menu item Possible setting Description Temperature unit °C °F Temperature unit, degrees Celsius or degrees Fahrenheit. All temperatures are displayed with the selected unit. Reset - Resets all sensor settings to the delivery condition (see section 4.6.1).
Oxi 3210 Operation 4.4.4 Why calibrate? When to calibrate? D.O. calibration 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. z After connecting another D.O. sensor z When the sensor symbol flashes (after the calibration interval has expired).
Operation Calibration evaluation Oxi 3210 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 Error Calibration record Relative slope +++ S = 0.8 ... 1.25 ++ S = 0.7 ... 0.8 + S = 0.6 ... 0.7 Error S < 0.6 or S > 1.25 Eliminate the error according to chapter 6 WHAT TO DO IF...
Oxi 3210 Operation O2 0.88 25.1 °C OxiCal 22.09.2008 08:00 4 Start the measurement with . The measured value is checked for stability (stability control). The [AR] status indicator is displayed. The measured parameter flashes. 5 Wait for the end of the AutoRead measurement or accept the calibration value with . The calibration record is displayed. 6 Using /[Continue] or , switch to the measured value display. 4.4.
Operation Oxi 3210 4.5 Data storage You can transmit measured values (datasets) to the data storage: z Manual storage (see section 4.5.1) Measurement dataset A complete dataset consists of: z ID number z Date/time z Measured value of the connected sensor z Measured temperature value of the connected sensor z AutoRead info: AR appears with the measured value if the AutoRead criterion was met while storing (stable measured value). Otherwise, the AR display is missing.
Oxi 3210 Operation 4.5.1 Manual storage You can transmit a measurement dataset to the data storage as follows. 1 Press the key shortly. The menu for manual storage appears. Manual data storage Data record: 4 of 200 30.10.2008 11:24:16 O2 = 7.92 mg/l 25.1 °C AR +++ Sal = 6.5 ID number: Continue 22.09.2008 08:00 Back 2 If the storage is full 1 If necessary, change and confirm the ID number (1 ... 10000) with <▲><▼> and . The dataset is stored.
Operation Oxi 3210 4.5.2 Displaying and editing the measurement data storage The contents of the manual measurement data storage can be shown on the display. The measurement data storage has a function to erase the entire contents. Editing the data storage Settings The storage is edited in the menu, Storage & config/ Data storage. To open the Storage & config menu, press the [Menu] key in the measured value display. Open the manual storage directly with the key.
Oxi 3210 Operation z Switch directly to the measured value display with . z Quit the display and move to the next higher menu level with / [Back]. 4.5.3 Erasing the measurement data storage How to erase the measurement data storage is described in section 4.5.2 DISPLAYING AND EDITING THE MEASUREMENT DATA STORAGE. 4.6 Reset You can reset (initialize) all sensor settings and sensor-independent settings separately from each other. 4.6.
Operation Oxi 3210 4.6.2 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 1h The system settings are reset in the menu, Storage & config / System / Reset. To open the Storage & config menu, press the [Menu] key in the measured value display.
Oxi 3210 Maintenance, cleaning, disposal 5 Maintenance, cleaning, disposal 5.1 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 1 Unscrew the two screws (1) on the underside of the meter. 2 Open the battery compartment (2) on the underside of the meter. 1 2 3 Remove the four batteries from the battery compartment.
Maintenance, cleaning, disposal Oxi 3210 5 5.2 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. Remove any splashes immediately. 5.3 Packing This meter is sent out in a protective transport packing.
Oxi 3210 What to do if... 6 Error message, OFL Cause Error message, Error Cause What to do if... – Measured value outside the measuring range – D.O. sensor contaminated Remedy – Use a suitable D.O. sensor Remedy – Clean D.O.
What to do if...
Oxi 3210 Technical data Dimensions Weight Mechanical structure 7 Technical data 7.1 General data approx. 180 x 80 x 55 mm approx. 0.4 kg Type of protection IP 67 Electrical safety Protective class III Test certificates CE Ambient conditions Power supply Guidelines and norms used ba75795e02 03/2009 Storage - 25 °C ... + 65 °C Operation -10 °C ... + 55 °C Climatic class 2 Batteries 4 x 1.
Technical data Oxi 3210 7.2 Measuring ranges, resolution Accuracy (± 1 digit) Measuring ranges, resolution, accuracy Note: The values quoted in brackets apply especially for the DurOx 325 sensor. Parameter Measuring range Resolution D.O. concentration [mg/l] 0 ... 20.00 (0 ... 20.0) 0 ... 90.0 (0 ... 90) 0.01 (0.1) 0.1 (1) Saturation [%] 0 ... 200.0 (0 ... 200) 0 ... 600 0.1 (1) 1 D.O. partial pressure [mbar] 0 ... 200.0 (0 ... 200) 0 ... 1250 0.1 (1) 1 T [°C] 0 ... 50.0 0.
Oxi 3210 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.
Technical data 46 Oxi 3210 ba75795e02 03/2009
Oxi 3210 Lists 8 Lists This chapter provides additional information and orientation aids. Specialist terms Index 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. Glossary Adjusting AutoRange Name of the automatic selection of the measuring range. Calibration Comparing the value from a measuring system (e. g.
Lists Oxi 3210 Salinity Salt content Slope (relative) Stability control Test sample 48 The absolute salinity SA 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. It is determined by measuring the electrical conductivity. General designation for the quantity of salt dissolved in water.
Oxi 3210 Lists Index A P Air calibration beaker . . . . . . . . . . . . . . . . . 31 Authorized use . . . . . . . . . . . . . . . . . . . . . . 10 Automatic switch-off . . . . . . . . . . . . . . . . . . 15 AutoRead . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . 9 B S Battery compartment . . . . . . . . . . . . . . 13, 39 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Sample display . . . . . . . . . . . .
Lists 50 Oxi 3210 ba75795d02 03/2009
Wissenschaftlich-Technische Werkstätten GmbH Dr.-Karl-Slevogt-Straße 1 D-82362 Weilheim Germany Tel: Fax: E-Mail: Internet: +49 (0) 881 183-0 +49 (0) 881 183-100 +49 (0) 881 183-420 Info@WTW.com http://www.WTW.
