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wtw Oxi 3315 Operating Manual

Digital meter for digital ids dissolved oxygen sensors
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Operating manual
Oxi 3315
Digital meter
for digital
IDS dissolved oxygen sensors
ba75944e02
03/2012

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  • Page 1 Operating manual Oxi 3315 Digital meter for digital IDS dissolved oxygen sensors ba75944e02 03/2012...
  • Page 2 Oxi 3315 © Weilheim 2012, WTW GmbH Copyright Reproduction in whole - or even in part - is prohibited without the express written permission of WTW GmbH, Weilheim. Printed in Germany. ba75944e02 03/2012...

  • Page 3: Table Of Contents

    Oxi 3315 meter ........
  • Page 4 Contents Oxi 3315 Dissolved oxygen ........24 Measuring .
  • Page 5 12 Firmware update ........52 12.1 Firmware update for the meter Oxi 3315 ....52 12.2 Firmware-Update for IDS Sensors.

  • Page 6: Contents Oxi

    Contents Oxi 3315 ba75944e02 03/2012...

  • Page 7: Overview

    2 Display 3 Socket field Sensors A measuring system ready to measure consists of the Oxi 3315 meter and a suitable sensor. Suitable sensors are IDS dissolved oxygen (D.O.) sensors. Information on available IDS sensors is given on the Internet and in the WTW catalog, "Laboratory and field instrumentation".

  • Page 8: Ids Sensors

     to hide menus automatically that do not concern this sensor To be able to use the automatic sensor recognition, a meter that supports the automatic sensor recognition (e.g. Oxi 3315) and a digital IDS sensor are required. In digital IDS sensors, sensor data are stored that clearly identify the sensor.

  • Page 9: Safety

    Oxi 3315 Safety Safety 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 10: Safe Operation

    Safety Oxi 3315 Safe operation 2.2.1 Authorized use This meter is authorized exclusively for D.O. measurements in the laboratory. Only the operation and running of the meter according to the instructions and technical specifications given in this operating manual is authorized (see section 11 T...

  • Page 11: Commissioning

    – Comprehensive operating manual – MultiLab Importer software Power supply The Oxi 3315 is supplied with power in the following ways:  Battery operation (4 batteries, 1.5 V Mignon type AA)  USB operation via a connected USB-B cable Initial commissioning Perform the following activities: ...

  • Page 12: Inserting The Batteries

    Commissioning Oxi 3315 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. Open the battery compartment (1) on the underside of the meter.
  • Page 13 Oxi 3315 Commissioning ba75944e02 03/2012...

  • Page 14: Operation

    Operation Oxi 3315 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 15: Display

    Oxi 3315 Operation 4.1.2 Display [t90= 30 s] HOLD AR 01.09.2011 USB output Info 08:00 1 Status information (sensor) 2 Measured value 3 Measured parameter 4 Sensor symbol (calibration evaluation, calibration interval) 5 Measured temperature (with unit) 6 Status information (meter) 7 Softkeys and date + time 4.1.3 Status information (meter)

  • Page 16: Socket Field

    (> SELV and > current circuit with current limiting). WTW IDS sensors and IDS adapters meet these requirements. 4.1.5 Sensor info You can display the current sensor data and sensor settings of a connected sensor at any time.

  • Page 17: Switching On The Meter

    Oxi 3315 Operation FDO 925 01.09.2011 11250001 More 08:00 Display further sensor data (settings) with <F1>/[More]. FDO 925 B11250001 Cap name SC-FDO 925 Ser. no. of cap 11250001 Sal automatic Sal correction Salinity Calibration interval 180 d 01.09.2011 Back 08:00 Switching on the meter Switch the meter on with <On/Off>.

  • Page 18: Navigation

    Operation Oxi 3315 Navigation 4.4.1 Operating modes Operating Description mode The measurement data of the connected sensor are shown Measuring in the measured value display The course of a calibration with calibration information, func- Calibration tions and settings is displayed...
  • Page 19 Oxi 3315 Operation System General Interface Clock function Service information Reset 01.09.2011 Back 08:00  Settings Settings are indicated by a colon. The current setting is displayed on the right-hand side. The setting mode is opened with <ENTER>. Subsequently, the setting can be changed with <><> and <ENTER>. Example:...

  • Page 20: Example 1 On Navigation: Setting The Language

    Operation Oxi 3315 Calibration FDO Check Sal correction: Salinity: Response time t90: 30 s Reset ] Air pressure = 956 mbar 01.09.2011 Back 08:00 4.4.4 Example 1 on navigation: Setting the language Press the <On/Off> key. The measured value display appears.
  • Page 21 Oxi 3315 Operation System General Interface Clock function Service information Reset 01.09.2011 Back 08:00 Select the General submenu with <><>. The current selection is displayed with a frame. Open the General submenu with <ENTER>. General Language: Deutsch Acoustic signal: Illumination:...

  • Page 22: Example 2 On Navigation: Setting The Date And Time

    Operation Oxi 3315 4.4.5 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.
  • Page 23 Oxi 3315 Operation Change and confirm the setting with <><> and <ENTER>. The time is set. If necessary, set the Date and Date format. The setting is made similarly to that of the time. To make further settings, switch to the next higher menu level with <F1>.

  • Page 24: Dissolved Oxygen

    Dissolved oxygen Oxi 3315 Dissolved oxygen Measuring 5.1.1 Measuring D.O. NOTE When connecting a grounded PC/printer, measurements cannot be performed in grounded media as the values would be incorrect. The USB interface is not galvanically isolated. Connect the D.O. sensor to the meter.
  • Page 25 Oxi 3315 Dissolved oxygen When the salinity correction is switched on, the [Sal] indicator is displayed in the measuring screen. You can switch the salinity correction on or off and enter the salinity in the menu for calibration and measurement settings (see section 6.1.1 S...

  • Page 26: Measuring The Temperature

    Dissolved oxygen Oxi 3315 The Stability control function checks whether the measured values are stable Criteria for a stable within the monitored time interval. measured value Measured parameter Time interval Stability in the time interval D.O. concentration 20 seconds Δ : better than 0.03 mg/l...

  • Page 27: Evaluation

    Oxi 3315 Dissolved oxygen ® In the FDO check procedure, the Stability control function (AutoRead) is auto- Stability control matically activated. (AutoRead) Proceed as follows to carry out the FDO ® check procedure: Connect the D.O. sensor to the meter.

  • Page 28: Calibration

     When the calibration interval has expired  When your accuracy requirements are especially high  Routinely within the framework of the company quality assurance 5.3.3 Calibration procedures The Oxi 3315 provides 2 calibration procedures:  Calibration in water vapor-saturated air. ® Use an OxiCal air calibration vessel for calibration.

  • Page 29: Calibration In Water Vapor-Saturated Air

    Oxi 3315 Dissolved oxygen 5.3.4 Calibration in water vapor-saturated air Use the check and storage beaker (FDO® Check) to calibrate the FDO® 925 sensor. Proceed as follows to calibrate the D.O. sensor: Connect the D.O. sensor to the meter. ®...
  • Page 30 Dissolved oxygen Oxi 3315 Before calibrating via a comparison measurement, the sensor should be calibrated in the air calibration vessel. Proceed as follows to calibrate the instrument: Connect the D.O. sensor to the measuring instrument. Immerse the D.O. sensor in the reference solution.

  • Page 31: Calibration Data

    Oxi 3315 Dissolved oxygen 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 measuring instrument switches to the measured value display.
  • Page 32 Dissolved oxygen Oxi 3315 calibration. The evaluation appears on the display and in the calibration record. ® Display Calibration record Relative slope 925 calibra- tion evaluation S = 0.94 ... 1.06 S = 0.92 ... 0.94 S = 1.06 ... 1.08 S = 0.90 ...

  • Page 33: Settings

    Oxi 3315 Settings Settings D.O. measurement settings 6.1.1 Settings for D.O. sensors (menu or measurement and calibration settings) The settings are available in the menu for measurement and calibration set- Settings tings. To open the settings, display the required measured parameter in the measured value display and press the <ENTER>...

  • Page 34: Sensor-Independent Settings

    Settings Oxi 3315 Menu item Possible Description setting Response time of the signal filter (in Response time 30 ... 300 s seconds). A signal filter in the sensor reduces the limits of variation of the measured value. The signal filter is characterized by the response time t90.

  • Page 35: Data Storage

    TEM SETTINGS 6.2.2 Data storage This menu contains all functions to display, edit and erase stored measured values. Detailed information on the memory functions of the Oxi 3315 are given in section 7 D , page 38. ATA STORAGE 6.2.3 Automatic Stability control The automatic Stability control (AutoRead) function continuously checks the stability of the measurement signal.

  • Page 36: Automatic Switch-Off

    Settings Oxi 3315 6.2.4 Automatic switch-off The instrument has an automatic switch-off function in order to save the batteries (see section 6.2.1 S , page 34). The automatic switchoff YSTEM switches off the measuring instrument if no key is pressed for an adjustable period.

  • Page 37: Resetting The System Settings

    Oxi 3315 Settings measured parameter in the measured value display and press the <ENTER> key. 6.3.2 Resetting the system settings The following system settings can be reset to the default condition: Setting Default settings English Language Acoustic signal 4800 Baud...

  • Page 38: Data Storage

    Data storage Oxi 3315 Data storage You can transmit measured values (datasets) to the data storage:  Manual data storage (see section 7.1 M , page 38) ANUAL STORAGE  Automatic data storage at intervals (see section 7.2 A UTOMATIC STORAGE AT...

  • Page 39: Automatic Storage At Intervals

    Oxi 3315 Data storage 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 Press the <STO_> key.
  • Page 40 Data storage Oxi 3315 confirm with <ENTER>. The meter switches to the measured value display. 0d03h00min 01.09.2011 08:00 1 Remaining storage duration 2 Graphical display of the storage duration The active automatic storage function can be recognized by the progress bar in the status line.

  • Page 41: Measurement Data Storage

    Oxi 3315 Data storage Measurement data storage 7.3.1 Editing the measurement data storage The contents of the manual or automatic measurement data storage can be shown on the display. Each of the measurement data storages has a function to erase the entire contents.

  • Page 42: Erasing The Measurement Data Storage

    = 30 s 01.09.2011 Back USB output 08:00 Representation of a 01.09.2011 07:43:33 dataset inoLab Oxi 3315 Ser. no. 1135001 (USB output) ID number 2 FDO 925 Ser. no. 1125001 SC-FDO 925 11200001 Ox 7.88 mg/l 24.8 °C AR, S: +++ ________________________________________ 01.09.2011 07:43:53...

  • Page 43: Measurement Dataset

     Calibration evaluation: - 4 levels (+++, ++, +, -, or no evaluation) 7.3.4 Storage locations The Oxi 3315 meter has two measurement data memories. The measured values recorded either manually or automatic are stored separately in indi- vidual measurement data memories.

  • Page 44: Transmitting Data (Usb Interfaces)

    Via the USB-B interface (USB Device) you can transmit data to a PC or printer and update the meter software. Connecting the PC / USB-B interface (USB Device) Connect the Oxi 3315 to the PC via the USB-B interface. System requirements of the PC for installation of the USB driver: Installation of the USB driver on the ...

  • Page 45: Options For Data Transmission To A Pc

    Oxi 3315 Transmitting data (USB interfaces) Options for data transmission to a PC Via the USB-B interface you can transmit data to a PC. The following table shows which data are transmitted to the interface in which way: Data Control...

  • Page 46: Maintenance, Cleaning, Disposal

    Maintenance, cleaning, disposal Oxi 3315 Maintenance, cleaning, disposal Maintenance 9.1.1 General maintenance activities The only maintenance activity required is replacing the batteries. See the relevant operating manuals of the IDS sensors for instruc- tions on maintenance. 9.1.2 Replacing the batteries You can operate the meter either with normal batteries or with rechargeable batteries (Ni-MH).

  • Page 47: Cleaning

    Oxi 3315 Maintenance, cleaning, disposal Place four batteries (type Mignon AA) in the battery compartment. Close the battery compartment (2) and tighten the screws (1). Set the date and time (see section 4.4.5 E XAMPLE ON NAVIGATION ETTING THE DATE AND , page 22).

  • Page 48: What To Do If

    What to do if... Oxi 3315 What to do if... 10.1 Dissolved oxygen More information and instructions on cleaning and exchange of sensors are given in the documentation of your sensor. The measured value is outside the measuring range. Error message...
  • Page 49 Oxi 3315 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, <ENTER_> / Stor- meter or IDS sensor age &...

  • Page 50: Technical Data

    Technical data Oxi 3315 Technical data 11.1 Measuring ranges, resolution, accuracy Measuring ranges, Variable Measuring range Accuracy accuracy Air pressure (abso- 300 ... 1100 mbar ± 4 mbar lute)* Available only if a D.O. sensor is connected Further data are given in the documentation of your sensor.
  • Page 51 Oxi 3315 Technical data EC directive 2004/108/EC Applicable directives EN 61326-1 and standards EN 61000-3-2 EN 61000-3-3 FCC Class A Meter safety EC directive 2006/95/EC EN 61010-1 UL 61010-1 CAN/CSA-C22.2#61010-1 IP protection class EN 60529 ba75944e02 03/2012...

  • Page 52: 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 Oxi 3315). Install the downloaded firmware update on a PC.

  • Page 53: Firmware-Update For Ids Sensors

    You can find availble firmware update files for your IDS sensor on the internet. For updating, connect the IDS sensor to the Oxi 3315, and the Oxi 3315 to a For the update via the USB-B interface, the following is required: ...

  • Page 54: Glossary

    Glossary Oxi 3315 Glossary Dissolved oxygen ® WTW name for a procedure to calibrate DO measuring systems in OxiCal water vapor saturated air. Pressure caused by the oxygen in a gas mixture or liquid. Oxygen partial pres- sure Short name for the relative D. O. saturation.
  • Page 55 Oxi 3315 Glossary The standard solution is a solution where the measured value is known Standard solution by definition. It is used to calibrate a measuring system. Name of a mathematical function expressing the temperature behavior Temperature function of a test sample, a sensor or part of a sensor.
  • Page 56 Glossary Oxi 3315 ba75944e02 03/2012...

  • Page 57: Index

    Oxi 3315 Index Index Air calibration beaker ....28 Reset ......36 Automatic switch-off .
  • Page 58 Index Oxi 3315 ba75944e02 03/2012...
  • Page 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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