wtw Oxi 3315 Operating instructions

ba75944e02 03/2012

Oxi 3315

Operating manual

Digital meter

for digital

IDS dissolved oxygen sensors

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Oxi 3315

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Reproduction in whole - or even in part - is prohibited without the express

written permission of WTW GmbH, Weilheim.

Printed in Germany.

Oxi 3315 - Contents

Oxi 3315 Contents

ba75944e02 03/2012 3

1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.1 Oxi 3315 meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.2 Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.2.1 IDS sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.2.2 Automatic sensor recognition . . . . . . . . . . . . . . . . . . . . . . 8

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1.1 Safety information in the operating manual . . . . . . . . . . . . 9

2.1.2 Safety signs on the meter . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1.3 Further documents providing safety information . . . . . . . . 9

2.2 Safe operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2.1 Authorized use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2.2 Requirements for safe operation . . . . . . . . . . . . . . . . . . . 10

2.2.3 Unauthorized use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.2 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.3 Initial commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.3.1 Inserting the batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.1 General operating principles . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.1.1 Keypad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.1.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.1.3 Status information (meter) . . . . . . . . . . . . . . . . . . . . . . . . 15

4.1.4 Socket field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.1.5 Sensor info. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.2 Switching on the meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.3 Switching off the meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.4 Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.4.1 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.4.2 Measured value display . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.4.3 Menus and dialogs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.4.4 Example 1 on navigation: Setting the language . . . . . . . 20

4.4.5 Example 2 on navigation: Setting the date and time . . . . 22

Contents Oxi 3315

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5 Dissolved oxygen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.1 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.1.1 Measuring D.O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.1.2 Measuring the temperature . . . . . . . . . . . . . . . . . . . . . . 26

5.2 FDO

®

check procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.2.1 Why should you check the sensor? . . . . . . . . . . . . . . . . 26

5.2.2 When should you check the sensor? . . . . . . . . . . . . . . . 26

5.2.3 Carrying out the FDO

®

check procedure . . . . . . . . . . . . 26

5.2.4 Evaluation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.3 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.3.1 Why calibrate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.3.2 When to calibrate? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.3.3 Calibration procedures . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.3.4 Calibration in water vapor-saturated air . . . . . . . . . . . . . 29

5.3.5 Calibration by means of a Comparison meas.

(FDO Comp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.3.6 Calibration data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.1 D.O. measurement settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.1.1 Settings for D.O. sensors

(menu or measurement and calibration settings) . . . . . . 33

6.2 Sensor-independent settings . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6.2.1 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

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

6.2.3 Automatic Stability control . . . . . . . . . . . . . . . . . . . . . . . 35

6.2.4 Automatic switch-off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

6.2.5 Display illumination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

6.3 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

6.3.1 Resetting the measurement settings . . . . . . . . . . . . . . . 36

6.3.2 Resetting the system settings. . . . . . . . . . . . . . . . . . . . . 37

7 Data storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7.1 Manual storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7.2 Automatic storage at intervals . . . . . . . . . . . . . . . . . . . . . . 39

7.3 Measurement data storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7.3.1 Editing the measurement data storage. . . . . . . . . . . . . . 41

7.3.2 Erasing the measurement data storage . . . . . . . . . . . . . 42

7.3.3 Measurement dataset. . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.3.4 Storage locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

8 Transmitting data (USB interfaces). . . . . . . . . . . . . . . . . . . . 44

8.1 Outputting current measurement data . . . . . . . . . . . . . . . . . . . 44

8.2 Transmitting data (to a PC) . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

8.3 Connecting the PC / USB-B interface (USB Device) . . . . . 44

8.4 Options for data transmission to a PC . . . . . . . . . . . . . . . . . . . 45

8.5 MultiLab Importer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Oxi 3315 Contents

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9 Maintenance, cleaning, disposal. . . . . . . . . . . . . . . . . . . . . . 46

9.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

9.1.1 General maintenance activities . . . . . . . . . . . . . . . . . . . 46

9.1.2 Replacing the batteries. . . . . . . . . . . . . . . . . . . . . . . . . . 46

9.2 Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

9.3 Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

9.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

10 What to do if.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

10.1 Dissolved oxygen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

10.2 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

11 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

11.1 Measuring ranges, resolution, accuracy . . . . . . . . . . . . . . . . . 50

11.2 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

12 Firmware update. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

12.1 Firmware update for the meter Oxi 3315 . . . . . . . . . . . . . . . . . 52

12.2 Firmware-Update for IDS Sensors. . . . . . . . . . . . . . . . . . . . . . 53

13 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

14 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Contents Oxi 3315

6 ba75944e02 03/2012

Oxi 3315 Overview

ba75944e02 03/2012 7

1 Overview

1.1 Oxi 3315 meter

The digital Oxi 3315 compact precision dissolved oxygen (D.O.) meter enables

you to perform D.O. measurements quickly and reliably.

The Oxi 3315 provides the maximum degree of operating comfort, reliability

and measuring certainty for all applications.

The Oxi 3315 supports you in your work with the following functions:

 automatic sensor recognition,

 Electronic access control

 Data transmission via the USB interface (USB-B).

1.2 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.

1 Keypad

2Display

3 Socket field

Information on available IDS sensors is given on the Internet and

in the WTW catalog, "Laboratory and field instrumentation".

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Overview Oxi 3315

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1.2.1 IDS sensors

IDS sensors

 support the automatic sensor recognition

 show only the settings relevant to the specific sensor in the setting menu

 process signals in the sensor digitally so that precise and interference-free

measurements are enabled even with long cables

 facilitate to assign a sensor to a measured parameter with differently colored

couplings

 have quick-lock couplings with which to fix the sensors to the meter.

Sensor data from

IDS sensors

1.2.2 Automatic sensor recognition

The automatic sensor recognition for IDS sensors allows

 to operate an IDS sensor at different meters without recalibration

 to assign measurement data to an IDS sensor

– Measurement datasets are always stored and output with the sensor

name and sensor series number.

 to assign calibration data to an IDS sensor

– Calibration data and calibration history are always stored and output with

the sensor name and sensor series number.

 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.

The sensor data are automatically taken over by the meter.

Oxi 3315 Safety

ba75944e02 03/2012 9

2Safety

2.1 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.

Important safety instructions are highlighted in this operating manual. They are

indicated by the warning symbol (triangle) in the left column. The signal word

(e.g. "Caution") indicates the level of danger:

NOTE

indicates a possibly dangerous situation where goods 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 should

observe for your safety when working with the measuring system:

• Operating manuals of sensors and other accessories

• Safety datasheets of calibration or maintenance accessories (such as buffer

solutions, electrolyte solutions, etc.)

WARNING

indicates a possibly dangerous situation that can lead to seri-

ous (irreversible) injury or death if the safety instruction is not

followed.

CAUTION

indicates a possibly dangerous situation that can lead to

slight (reversible) injury if the safety instruction is not fol-

lowed.

Safety Oxi 3315

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2.2 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

ECHNICAL DATA, page

50).

Any other use is considered unauthorized.

2.2.2 Requirements for safe operation

Note the following points for safe 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 batteries).

2.2.3 Unauthorized use

The meter must not be put into operation if:

• it is visibly damaged (e.g. after being transported)

• it was stored under adverse conditions for a lengthy period of time (storing

conditions, see section 11 T

ECHNICAL DATA, page 50).

Oxi 3315 Commissioning

ba75944e02 03/2012 11

3 Commissioning

3.1 Scope of delivery

 Meter Oxi 3315

 4 batteries 1.5 V Mignon type AA

 USB cable (A plug on mini B plug)

 Short instructions

 CD-ROM with

– USB drivers

– Comprehensive operating manual

– MultiLab Importer software

3.2 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

3.3 Initial commissioning

Perform the following activities:

 Insert the supplied batteries

 Switch on the meter (see

section 4.2 S

WITCHING ON THE METER, page 17)

 Set the date and time (see

section 4.4.5 E

XAMPLE 2 ON NAVIGATION: SETTING THE DATE AND TIME, page

22)

Commissioning Oxi 3315

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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. Open the battery compartment (1) on the underside of the

meter.

1Screws

2 Battery compartment

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 4.4.5 E

XAMPLE 2 ON NAVIGATION: SETTING THE DATE AND TIME,

page 22).

2

1

Oxi 3315 Commissioning

ba75944e02 03/2012 13

Operation Oxi 3315

14 ba75944e02 03/2012

4 Operation

4.1 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. <ENTER>).

<F1>:

<F1_>:

<F2>:

<F2__>:

Softkeys providing situation dependent functions, e.g.:

<F1>/[Info]: View information on a sensor

<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, navigation

Increments, decrements values

Increments, decrements values continuously

<ENTER>:

<ENTER_>:

Opens the menu for measurement settings / confirms

entries

Opens the menu for system settings

<AR> Freezes the measured value (HOLD function)

Switches the AutoRead measurement on or off

F1F1

F2

CAL

STO

RCL

ENTER

AR

Oxi 3315 Operation

ba75944e02 03/2012 15

4.1.2 Display

4.1.3 Status information (meter)

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

AR Stability control (AutoRead) is active

HOLD Measured value is frozen (<AR> key)

Batteries are almost empty

Data are automatically output to the USB-B interface at

intervals

3

2

1

4

5

7

HOLD AR

6

[t90= 30 s]

Info

01.09.2011

08:00

USB output

Operation Oxi 3315

16 ba75944e02 03/2012

4.1.4 Socket field

4.1.5 Sensor info

You can display the current sensor data and sensor settings of a connected

sensor at any time. The sensor data are available in the measured value

display with the <F1>/[Info] softkey.

1 Digital sensors: (dissolved oxygen)

2 USB B (device) interface

3 Service interface

CAUTION

Only connect sensors to the meter that cannot return any volt-

ages or currents that are not allowed (> SELV and > current

circuit with current limiting).

WTW IDS sensors and IDS adapters meet these requirements.

1. In the measured value display:

Display the sensor data (sensor name, series number) with [<F1>Info].

3

1

2

01.09.2011

08:00

Info

USB output

Oxi 3315 Operation

ba75944e02 03/2012 17

4.2 Switching on the meter

4.3 Switching off the meter

2. Display further sensor data (settings) with <F1>/[More].

1. Switch the meter on with <On/Off>.

The meter performs a self-test.

2. Connect the sensor.

The meter is ready to measure.

1. Switch the meter off with <On/Off>.

More

01.09.2011

08:00

FDO 925

11250001

Cap name SC-FDO 925

Ser. no. of cap 11250001

Sal automatic off

Sal correction off

Salinity 0.0

Calibration interval 180 d

FDO 925

B11250001

01.09.2011

08:00

Back

01.09.2011

08:00

Info

USB output

Operation Oxi 3315

18 ba75944e02 03/2012

4.4 Navigation

4.4.1 Operating modes

4.4.2 Measured value display

In the measured value display, you can

 open the menu for calibration and measurement settings with <ENTER>

(short

keystroke)

 open the system menu with the sensor-independent settings by pressing

<ENTER>Storage & config for a <ENTER_>long

keystroke, approx. 2 s).

 Change the display in the measurement window by pressing <M> (e.g. D.O.

concentration -> D.O. saturation index -> D.O. partial pressure ->).

4.4.3 Menus and dialogs

The menus for settings and dialogs in procedures contain further submenus.

The selection is made with the <><> keys. The current selection is dis-

played with a frame.

 Submenus

The name of the submenu is displayed at the upper edge of the frame. Sub-

menus are opened by confirming with <ENTER>. Example:

Operating

mode

Description

Measuring The measurement data of the connected sensor are shown

in the measured value display

Calibration The course of a calibration with calibration information, func-

tions and settings is displayed

Storage in

memory

The meter stores measuring data automatically or manually

Transmit-

ting data

The meter transmits measuring data and calibration records

to a USB-B interface automatically or manually.

Setting The system menu or a sensor menu with submenus, set-

tings and functions is displayed

Oxi 3315 Operation

ba75944e02 03/2012 19

 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:

 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.

 Messages

Information is marked by the [

i

] symbol. They cannot be selected. Exam-

ple:

General

Interface

Clock function

Service information

Reset

System

01.09.2011

08:00

Back

Language: Deutsch

Acoustic signal: off

Illumination: on

Contrast: 12

Switchoff time: 1 h

Temperature unit: °C

Stability control

: on

General

01.09.2011

08:00

Back

Calibration record

Calibration data storage

Calibration interval: 108 d

Ox

01.09.2011

08:00

Back

Operation Oxi 3315

20 ba75944e02 03/2012

4.4.4 Example 1 on navigation: Setting the language

1. Press the <On/Off> key.

The measured value display appears.

The instrument is in the measuring mode.

2. Open the Storage & config menu with <ENTER_>.

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>.

Calibration

FDO Check

Sal correction: off

Salinity: 0.0

Response time t90: 30 s

Reset

[

i

] Air pressure = 956

mbar

Ox

01.09.2011

08:00

Back

01.09.2011

08:00

Info

USB output

System

Data storage

Storage & config

01.09.2011

08:00

Back

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wtw Oxi 3315 Operating instructions

wtw Oxi 3315 Operating instructions

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