Xylem Oxi 3205 User Manual

Oxi 3205

7.92

25.0

mg/l

°C

Operating manual

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Dissolved oxygen (D.O.) meter

Oxi 3205

Accuracy when

going to press

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.

Reproduction in whole - or even in part - is prohibited without the express written permission of WTW GmbH, Weilheim. Printed in Germany.

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Oxi 3205 Contents

Oxi 3205 - Contents

1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.3 Socket field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

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

2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . 10

3 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.1 Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.2 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.1 Switching on the meter . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.2 General operating principles . . . . . . . . . . . . . . . . . . . . . . 16

4.2.1 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . 16

4.2.2 Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2.3 Example on navigation: Setting the language . . 19

4.3 Sensor-independent settings . . . . . . . . . . . . . . . . . . . . . 21

4.3.1 Setting in the Configuration menu . . . . . . . . . . . 21

4.3.2 Automatic Stability control . . . . . . . . . . . . . . . . . 21

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

4.4.1 General information . . . . . . . . . . . . . . . . . . . . . . 22

4.4.2 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.4.3 Settings for D.O. sensors (menu or measurement and calibration settings) 24

4.4.4 D.O. calibration . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.4.5 Displaying calibration records . . . . . . . . . . . . . . 27

4.5 Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.5.1 Resetting the measurement settings. . . . . . . . . 28

4.5.2 Resetting the system settings . . . . . . . . . . . . . . 29

5 Maintenance, cleaning, disposal. . . . . . . . . . . . . . . . . 31

5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.1.1 Replacing the batteries . . . . . . . . . . . . . . . . . . . 31

5.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.3 Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

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Contents Oxi 3205

6 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.1 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.2 Measuring ranges, resolution, accuracy . . . . . . . . . . . . . 36

8 Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

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Oxi 3205 Overview

205

7.92

25.0

mg/l

°C

1Overview

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. meter.

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1 Keypad

2 Display

3 Socket field

Overview Oxi 3205

Oxi 3205

ENTER

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

<On/Off>: Switches the meter on or off

<M>: Selects the measured parameter

<CAL>: <CAL

_>:

<▲>: Increments values, scrolls

<▼>: Decrements values, scrolls

<ENTER>:

<ENTER

_>:

_>).

Calls up the calibration procedure Displays the calibration data

Opens the menu for measurement settings / confirms entries Opens the menu for system settings

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Oxi 3205 Overview

25.0

7.92

°C

4 5 6

mg/l

[Sal]

1.2 Display

1 Status information

2 Measured value (with unit)

Function display

indicators

3 Measured parameter

4 Sensor symbol (calibration evaluation, calibration

interval)

5 Measured temperature (with unit)

6 Status line

Error An error occurred during calibration

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Overview Oxi 3205

1.3 Socket field

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.

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Oxi 3205 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 The meter was developed for work in the field and in the laboratory.

Thus, we assume that, as a result of their professional training and experience, the operators will know the necessary safety precautions to take when handling chemicals.

Safety instructions Safety instructions in this operating manual are indicated by the

warning symbol (triangle) in the left column. The signal word (e.g. "Caution") indicates the level of danger:

Further notes

Warning

indicates instructions that must be followed precisely in order to avoid possibly great dangers to personnel.

Caution

indicates instructions that must be followed precisely in order to avoid the possibility of slight injuries or damage to the meter or the environment.

Note

indicates notes that draw your attention to special features.

Note

indicates cross-references to other documents, e.g. operating manuals.

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Safety Oxi 3205

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 T

ECHNICAL 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.

2.2 General safety instructions

This meter is constructed and tested in compliance with the IEC 1010 safety regulations for electronic measuring instruments. It left the factory in a safe and secure technical condition.

Function and

operational safety

The smooth functioning and operational safety of the meter can only be guaranteed if the generally applicable safety measures and the specific safety instructions in this operating manual are followed during operation.

The smooth functioning and operational safety of the meter can only be guaranteed under the environmental conditions that are specified in chapter 7 T

ECHNICAL DATA.

If the meter was transported from a cold environment to a warm environment, the formation of condensate can lead to the faulty functioning of the meter. In this event, wait until the temperature of the meter reaches room temperature before putting the meter back into operation.

Caution

The meter is only allowed to be opened by authorized personnel.

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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:

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.

Obligations of the

purchaser

The purchaser of this meter must ensure that the following laws and guidelines are observed when using dangerous substances:

z EEC directives for protective labor legislation

z National protective labor legislation

z Safety regulations

z Safety datasheets of the chemical manufacturers.

Caution

In addition to the safety instructions mentioned here, also follow the safety instructions of the sensors used. The operating manuals of the sensors are available on the supplied CD and on the Internet under www.WTW.com.

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Safety Oxi 3205

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Oxi 3205 Commissioning

3 Commissioning

3.1 Scope of delivery

z D.O. meter Oxi 3205

z 4 batteries 1.5 V Mignon type AA

z Short instructions

z CD-ROM with detailed operating manual

3.2 Initial commissioning

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.

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3 Place four batteries (type Mignon AA) in the battery

compartment.

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.

Commissioning Oxi 3205

4 Close the battery compartment (2) and tighten the screws (1).

Switching on the meter

1 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).

Note

The meter has an energy saving feature to avoid unnecessary battery depletion. The energy saving feature switches off the measuring instrument if no key is pressed during the adjusted interval. (How to set the switch-off interval, see section 4.3).

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+ 30 hidden pages