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Contents

Oxi 7310

ba75931e03

12/2011

Dissolved oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1

Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1.1

Measuring D.O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1.2

Measuring the temperature . . . . . . . . . . . . . . . . . . . . . . 24

5.2

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.2.1

Why calibrate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.2.2

When to calibrate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.2.3

Calibration procedures . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.2.4

Calibration in water vapor-saturated air

(air calibration vessel)

. . . . . . . . . . . . . . . . . . . . . . 25

5.2.5

Calibrating with a Comparison meas. (OxiComp) . . . . . 26

5.2.6

Calibration data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.1

Measurement settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

6.1.1

Changing the settings for D.O. sensors . . . . . . . . . . . . . 30

6.1.2

Calibration interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.2

Sensor-independent settings . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6.2.1

System

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6.2.2

Data storage

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.3

Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.3.1

Resetting the measurement settings . . . . . . . . . . . . . . . 33

6.3.2

Resetting the system settings. . . . . . . . . . . . . . . . . . . . . 34

Data storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.1

Manual storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.2

Automatic storage at intervals

. . . . . . . . . . . . . . . . . . . . . . 36

7.3

Measurement data storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7.3.1

Displaying and editing the measurement data storage . 38

7.3.2

Erasing the measurement data storage . . . . . . . . . . . . . 40

7.3.3

Measurement dataset. . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.3.4

Storage locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Transmitting data (USB interface). . . . . . . . . . . . . . . . . . . . . 41

8.1

Options for data transmission . . . . . . . . . . . . . . . . . . . . . . . . . 41

8.2

Connecting a PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8.3

MultiLab Importer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Printer (only Oxi 7310P) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

9.1

Commissioning / switching the printer on or off . . . . . . . . . . . . 43

9.2

Operation / printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

9.3

Printer settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

9.4

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

9.4.1

Changing the roll of paper . . . . . . . . . . . . . . . . . . . . . . . 44

9.5

What to do if... / printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

10 Maintenance, cleaning, disposal. . . . . . . . . . . . . . . . . . . . . . 46

10.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

10.1.1 General maintenance activities . . . . . . . . . . . . . . . . . . . 46

Содержание Oxi 7310

Страница 1: ...ba75931e03 12 2011 Oxi 7310 Oxi 7310P Operating manual D O meter Oxi 7310P Oxi 7310 Printermodul ...

Страница 2: ...Oxi 7310 ba75931e03 12 2011 Copyright Weilheim 2011 WTW GmbH Reproduction in whole or even in part is prohibited without the express writ ten permission of WTW GmbH Weilheim Printed in Germany ...

Страница 3: ...oning 10 3 1 Scope of delivery 10 3 2 Power supply 10 3 3 Initial commissioning 10 3 3 1 Inserting the batteries 11 3 3 2 Connecting the power pack 12 3 3 3 Mounting the stand 12 4 Operation 13 4 1 General operating principles 13 4 1 1 Keypad 13 4 1 2 Display 14 4 1 3 Status information meter 14 4 1 4 Socket field 15 4 2 Switching on the meter 15 4 3 Switching off 16 4 4 Navigation 16 4 4 1 Operat...

Страница 4: ...33 6 3 1 Resetting the measurement settings 33 6 3 2 Resetting the system settings 34 7 Data storage 35 7 1 Manual storage 35 7 2 Automatic storage at intervals 36 7 3 Measurement data storage 38 7 3 1 Displaying and editing the measurement data storage 38 7 3 2 Erasing the measurement data storage 40 7 3 3 Measurement dataset 40 7 3 4 Storage locations 40 8 Transmitting data USB interface 41 8 1 ...

Страница 5: ...ries 46 10 2 Cleaning 47 10 3 Packing 47 10 4 Disposal 47 11 What to do if 48 11 1 Dissolved oxygen 48 11 2 General information 48 12 Technical data 50 12 1 Measuring ranges resolution accuracy 50 12 2 General data 51 13 Firmware update 53 14 Glossary 54 15 Index 57 ...

Страница 6: ...meter enables you to perform D O measurements quickly and reliably The Oxi 7310 provides the maximum degree of operating comfort reliability and measuring certainty for all applications The USB interface can be used for data transmission to a PC and for software updates of the meter 1 Keypad 2 Display 3 Socket field 1 2 3 ...

Страница 7: ... 7310 meter and a suitable sensor Suitable sensors are D O dissolved oxygen sensors The information concerning the printer of the Oxi 7310P is given in a separate chapter see section 9 PRINTER ONLY OXI 7310P page 43 1 Keypad 2 Display 3 Socket field 4 Printer 5 Control panel of the printer Information on available sensors is given on the Internet and in the WTW catalog Laboratory and field instrum...

Страница 8: ...might be damaged if the actions mentioned are not taken 2 1 2 Safety signs on the meter Note all labels information signs and safety symbols on the meter and in the battery compartment A warning symbol triangle without text refers to safety information in this operating manual 2 1 3 Further documents providing safety information The following documents provide additional information which you shou...

Страница 9: ...fe operation The meter may only be operated according to the authorized use specified above The meter may only be supplied with power by the energy sources mentioned in this operating manual The meter may only be operated under the environmental conditions mentioned in this operating manual The meter may only be opened if this is explicitly described in this operating manual example Inserting the ...

Страница 10: ...e Oxi 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 3 3 Initial commissioning Perform the following activities Insert the supplied batteries For mains operation Connect the power pack If necessary mount the stand Switch on the meter see section 4 2 S...

Страница 11: ... Battery compartment 1 Open the battery compartment 1 on the underside of the meter CAUTION Make sure that the poles of the batteries are positioned cor rectly The signs on the batteries must correspond to the signs in the battery compartment 2 Place four batteries type Mignon AA in the battery compartment 3 Close the battery compartment 1 4 Set the date and time see section 4 4 6 EXAMPLE 2 ON NAV...

Страница 12: ...line voltage at the operating site must lie within the input voltage range of the original power pack see section 12 TECH NICAL DATA page 50 CAUTION Use original power packs only see section 12 TECHNICAL DATA page 50 1 Connect the plug of the power pack to the socket for the power pack on the Oxi 7310 2 Connect the original power pack to an easily accessible power outlet 1 2 ...

Страница 13: ... for system settings On Off Switches the meter on or off M Selects the measured parameter Quits the settings CAL CAL_ Calls up the calibration procedure Displays the calibration data STO STO_ Saves a measured value manually Opens the menu for the automatic save function RCL RCL_ Displays the manually stored measured values Displays the automatically stored measured values _ _ Menu control navigati...

Страница 14: ...ured parameter 4 Sensor symbol calibration evaluation calibration interval 5 Measured temperature with unit 6 Status information meter 7 Softkeys and date time AR Stability control AutoRead is active HOLD Measured value is frozen AR key Batteries almost empty 3 2 4 5 6 7 1 HOLD AR 25 0 7 92 C O2 mg l Factor CellOx 01 07 2011 08 00 Menu USB output ...

Страница 15: ...he 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 1 Switch the meter on with On Off 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 1 3 4 5 2 O2 7 92 mg l 25 1 C CellOx 01 ...

Страница 16: ...lly switch the display illumination on or off see section 6 2 1 SYSTEM page 32 4 4 Navigation The principles of navigation in menus and dialogs are explained in the following sections 4 4 1 Operating modes The meter has the following operating modes Only those displays and functions are available in the active operating mode that are currently being required 1 Switch the meter off with On Off Oper...

Страница 17: ...lable in other operating situations 4 4 3 Menus and dialogs The menus for settings and dialogs in procedures contain further subelements To select a subelement use the keys The current selection is dis played with a frame To make further settings switch to the next higher menu level with F1 Back Use M to return to the measured value display 4 4 4 Elements in menus and dialogs Submenus The name of ...

Страница 18: ...sages Information is marked by the i symbol It cannot be selected Example Language English Beep Off Illumination On Contrast 48 Switchoff time 30 min General 01 07 2011 08 00 Back Calibration record Calibration data storage Calibration interval 150 d O2 01 07 2011 08 00 Back Calibration Temperature unit C Sal correction On Salinity 21 7 Stability control On Reset i Air pressure 941 mbar O2 01 07 2...

Страница 19: ...u The instrument is in the setting mode 3 Select the System submenu with The current selection is displayed with a frame 4 Open the System submenu with ENTER 5 Select the General submenu with The current selection is displayed with a frame O2 7 92 mg l 25 1 C CellOx 01 07 2011 08 00 Menu USB output System Data storage Storage config 01 07 2011 08 00 Back General Interface Clock Service information...

Страница 20: ... lowing functions and displays Current date and time Calibration date Identification of stored measured values Therefore check the time at regular intervals 6 Open the General submenu with ENTER 7 Open the setting mode for the Language with ENTER 8 Select the required language with 9 Confirm the setting with ENTER The meter switches to the measuring mode The selected language is active Language De...

Страница 21: ...nd ENTER The setting menu for the date and time opens up 3 Select and confirm the Time menu with and ENTER The hours are highlighted 4 Change and confirm the setting with and ENTER The minutes are highlighted 5 Change and confirm the setting with and ENTER The seconds are highlighted 6 Change and confirm the setting with and ENTER The time is set 7 If necessary set the Date and Date format The set...

Страница 22: ...L indicator is displayed in the measuring screen 1 Connect the D O sensor to the meter The D O measuring screen is displayed D O measurements can be carried out with the CellOx 325 StirrOx G or DurOx 325 D O sensor The meter automatically recognizes the type of the connected D O sensor 2 If necessary select the measured parameter with M 3 Immerse the D O sensor in the test sample 4 If necessary se...

Страница 23: ...Stability control function and the HOLD func tion with AR or M at any time 2 Using ENTER activate the Stability control function manually The AR status indicator appears while the measured value is assessed as not stable A progress bar is displayed and the display of the measured parameter flashes The HOLD AR status indicator appears as soon as a stable mea sured value is recognized The progress b...

Страница 24: ...l to measure the tempera ture of the test sample The temperature is automatically measured by the temperature sensor NTC30 or Pt1000 integrated in the sensor Measured parameter Time interval Stability in the time inter val D O concen tration 10 seconds Δ better than 0 05 mg l D O satura tion 10 seconds Δ better than 0 6 D O partial pressure 10 seconds Δ Better than 1 2 mbar The CellOx 325 StirrOx ...

Страница 25: ...urement e g Winkler titration according to DIN EN 25813 or ISO 5813 At the same time the relative slope is adapted to the comparison measurement by a correction factor When the correction factor is active the Factor indicator appears in the measuring screen 5 2 4 Calibration in water vapor saturated air air calibration vessel For this calibration procedure the Comparison meas setting must be set t...

Страница 26: ...the end of the measurement with stability control or accept the calibration value with ENTER The calibration record is displayed and output to the interface 6 Using F1 Continue or ENTER switch to the measured value dis play The meter displays a D O saturation of approx 101 7 in the air cali bration vessel Before calibrating via a comparison measurement the sensor should be calibrated in the air ca...

Страница 27: ... measurement with stability control or accept the calibration value with ENTER The factor that was set last is displayed 6 Using set the correction factor to adjust the displayed con centration value to the nominal value value of the comparison mea surement Subsequently accept the correction factor with ENTER The meter switches to the measured value display The status display Factor is active O2 7...

Страница 28: ...storage Calibration evalua tion After the calibration the meter automatically evaluates the current status of the calibration The evaluation appears on the display and in the calibration record The calibration record is automatically transmitted to the interface after calibrating Menu item Setting func tion Description Calibration Calibration data stor age Display or Data storage Calibration data ...

Страница 29: ...the other type remains stored The Oxi 7310 recognizes the type of the connected sensor and auto matically uses the correct calibration data Display Calibration record Relative slope S 0 8 1 25 S 0 7 0 8 S 0 6 0 7 Error Error S 0 6 or S 1 25 Error elimination see section 11 WHAT TO DO IF page 48 inoLab Oxi 7310 Ser no 11292113 CALIBRATION CellOx 01 07 2011 16 13 33 Ser no 10501234 S 0 88 25 0 C Sen...

Страница 30: ...ration Calibration data storage Display Displays the calibration record Further options Scroll through the calibration records with Output the displayed calibra tion record to the interface with F2 USB output Output all calibration records to the interface with F2__ USB output Quit the display with F1 Back or ENTER Switch directly to the measured value display with M Calibration Calibra tion data ...

Страница 31: ...ection On Off Manual salt content correction for concentration measurements Salinity 0 0 70 0 Salinity or salinity equivalent for the salt content correction This function is only available for concentration measurements if the manual salt content correction is switched on Stability control On Off Switches on or off the automatic stability control during measure ment see section Stability control ...

Страница 32: ...Confirm the setting with ENTER 4 Quit the menu with M Menu item Possible set ting Description System General Language Deutsch English further Selects the menu language System General Beep On Off Switches on off the beep on key stroke System General Illumination Auto On Off Switches the display illumination on off System General Contrast 0 50 100 Changes the display contrast System General Switchof...

Страница 33: ...ngs for the integrated printer of the Oxi 7310 P For details see section 9 PRINTER ONLY OXI 7310P page 43 System Clock Date format Date Time Settings of time and date For details see section 4 4 6 EXAMPLE 2 ON NAVIGATION SET TING THE DATE AND TIME page 20 System Service information Hardware version and software version of the meter are dis played System Reset Resets the system settings to the defa...

Страница 34: ...stem settings can be reset to the default condition The system settings are reset in the menu Storage config System Reset To open the Storage config menu press the F1_ Menu key in the measured value display Relative slope SRel 1 00 Salinity value 0 0 Salinity function Off Stability control On Temperature unit C Setting Default settings Language English Beep On Baud rate 4800 Baud Output format ASC...

Страница 35: ...surement dataset to the data storage as follows The dataset is at the same time output to the interface If the storage is full The following window appears if all 500 storage locations are occupied 1 Press the STO key shortly The menu for manual storage appears 2 If necessary change and confirm the ID number 1 10000 with and ENTER The dataset is stored The meter switches to the measured value dis ...

Страница 36: ...E MEA SUREMENT DATA STORAGE page 40 7 2 Automatic storage at intervals The storage interval Interval determines the time interval between automatic storage processes Each storage process transmits the current dataset to the interface at the same time Configuring the automatic storage function 1 Press the STO_ key The menu for automatic storage appears 1 Adjusted entire storage duration 2 Max avail...

Страница 37: ...min 10 min 15 min 30 min 60 min Storage interval The lower limit of the storage interval can be restricted by the number of free storage locations The upper limit is restricted by the stor age duration Duration 1 min x min Storage duration Specifies after which time the automatic storage should be terminated The lower limit of the storage duration is restricted by the storage interval The upper li...

Страница 38: ...contents of the manual or automatic measurement data storage can be shown on the display and output to the interface Each of the measurement data storages has a function to erase the entire contents Editing the data stor age The storage is edited in the menu Storage config Data storage To open the Storage config menu press the F1_ Menu key in the measured value display Open the manual storage dire...

Страница 39: ...orage Erase Erases the entire manual mea surement data storage All calibration data remains stored when this action is performed Data storage Manual data storage Output to USB Outputs all stored measurement data to the interface Manual data storage 3 of 64 01 07 2011 11 24 16 ID number 1 O2 7 92 mg l 25 1 C AR Sal 6 5 01 07 2011 08 00 Back USB output 01 07 2011 09 27 20 inoLab Oxi 7310 Ser No 1234...

Страница 40: ...ent dataset A complete dataset includes ID number Date time Measured value of the connected sensor Measured temperature value of the connected sensor AutoRead info The AR indicator appears with the measured value if the AutoRead criterion was met while storing stable measured value Other wise there is no AR indicator Calibration evaluation or no evaluation 7 3 4 Storage locations The Oxi 7310 mete...

Страница 41: ...ion interval Simultaneously with every auto matic storage process see section 7 2 AUTOMATIC STORAGE AT INTER VALS page 36 Stored mea sured values Manual Displayed dataset with F2 USB output after calling up from the storage All datasets with the Output to USB function Details see section 7 3 1 DISPLAYING AND EDITING THE MEASUREMENT DATA STORAGE page 38 Calibration records Manual Calibration record...

Страница 42: ... Pentium processor or higher with at least one free USB connection and CD ROM drive Windows 2000 XP Vista 7 8 3 MultiLab Importer With the aid of the MultiLab Importer software you can record and evaluate measuring data with a PC 1 Insert the supplied installation CD in the CD drive of your PC 2 Install the driver from the CD Follow the Windows installation instructions as necessary 3 Connect the ...

Страница 43: ...ys ON FEED and OFF 3 Lever to open the paper compartment 4 Lid of the paper compartment 2 1 3 4 1 Connect the power pack to the Oxi 7310 P The LED lights up green The printer is ready for operation or If the printer was switched off LED flashing Switch on the printer with OFF The LED lights up green The printer is ready for operation If there is a USB connection such as to a PC the data are output...

Страница 44: ...g the roll of paper Menu item Possible set ting Description System Printer Font size 12x20 8x16 7x16 Select the font size for the printer A print sample character set of the printer to view the available font sizes can be printed with OFF_ System Printer Print test page The printer prints the meter informa tion from the System Service infor mation menu The current printer settings are used for the...

Страница 45: ...nter LED illuminated No power pack connected Connect the power pack USB cable connected Disconnect the USB cable from the meter Function automatic storing at intervals with long intervals is switched on Switch off the function see section 7 2 AUTOMATIC STORAGE AT INTER VALS page 36 No paper available Insert a roll of paper Cause Remedy Paper inserted the wrong way up Turn the roll of paper around ...

Страница 46: ...ou 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 1 Open the battery compartment 1 on the underside of the meter 2 Remove the four batteries from the battery compartment 3 Place four new batteries type Mignon AA in the battery com partment CAUTION Make sure that t...

Страница 47: ... please contact your supplier 4 Close the battery compartment 1 5 Set the date and time see section 4 4 6 EXAMPLE 2 ON NAVIGA TION SETTING THE DATE AND TIME page 20 When the batteries are nearly empty the status indicator is displayed Dispose of used batteries according to the local regulations of your country End users within the European Union are obligated to return used batteries even ecologic...

Страница 48: ...or Cause Remedy Measured value outside the mea suring range of the meter Use a suitable D O sensor Cause Remedy D O sensor contaminated Electrolyte depleted Clean the D O sensor Changing the electrolyte and membrane cap If necessary replace the D O sensor Cause Remedy Membrane cap not screwed on tight enough Hole in the membrane Screw membrane head tighter Replace and refill the mem brane cap Caus...

Страница 49: ...sion is in the meter Cause Remedy Operating condition undefined or EMC load unallowed Processor reset Press the ENTER and On Off key simultaneously Cause Remedy E g a question by the service department Switch on the meter Open the menu F1_ Menu Storage config System Service information The instrument data are dis played ...

Страница 50: ... O concentration mg l 0 5 of measured value at ambient temperature 5 C 30 C D O Saturation 0 5 of measured value when measuring in the range of 10 K around the calibration temperature D O partial pressure mbar 0 5 of measured value at ambient temperature 5 C 30 C T C temperature sensor NTC 30 0 1 PT 1000 0 1 Correction functions Temperature compensation Accuracy better than 2 at 0 40 C Salinity co...

Страница 51: ...teries type AA Rechargeable batter ies 4 x 1 2 V NiMH rechargeable batteries type AA no charging function Operational life Up to 800 h without 100 h with illumination Power pack Kuantech Co Ltd KSAC 0900110W1UV 1 Input 100 240 V 50 60 Hz 270 mA Output 9 V 1 1 A Connection max overvoltage category II Primary plugs contained in the scope of deliv ery Euro US UK and Australian USB interface Type USB ...

Страница 52: ...rated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own e...

Страница 53: ... METER PAGE 49 1 Install the downloaded firmware update on a PC An update folder is created in the Windows start menu If an update folder already exists for the meter or meter type the new data is displayed there 2 In the windows start menu open the update folder and start the firmware update program 3 Using the USB interface cable connect the Oxi 7310 to a USB interface virtual COM port of the PC...

Страница 54: ...suring system so that the relevant value e g the displayed value differs as little as possible from the correct value or a value that is regarded as correct or that the difference remains within the tolerance AutoRange Name of the automatic selection of the measuring range Calibration Comparing the value from a measuring system e g the displayed value to the correct value or a value that is regard...

Страница 55: ...ing system Temperature function Name of a mathematical function expressing the temperature behav ior of a test sample a sensor or part of a sensor Test sample Designation of the test sample ready to be measured Normally a test sample is made by processing the original sample The test sample and original sample are identical if the test sample was not processed ...

Страница 56: ...Glossary Oxi 7310 56 ba75931e03 12 2011 ...

Страница 57: ...rmware update 53 I Initial commissioning 10 Initialize 33 Interval for calibration 31 K Keys 13 M Measured value display 17 Measurement accuracy 31 Measurement data storage Edit 38 Erase 38 Storage locations 40 Measurement dataset 40 Measuring 22 Menus navigation 17 Messages 18 P Print 41 Printer only Oxi 7310P 43 R Reset 33 S Scope of delivery 10 Slope relative 25 Socket field 15 Storage interval...

Страница 58: ...Index Oxi 7310 58 ba75931e03 12 2011 ...

Страница 59: ......

Страница 60: ...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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