Xylem WTW Oxi 3205 User manual

OPERATING MANUAL
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Oxi 3205
DISSOLVED OXYGEN (D.O.) METER
3205
O
2
7.92
[Sal]
25.0
mg/l
°C

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Oxi 3205
Copyright © 2017 Xylem Analytics Germany GmbH
Printed in Germany.

Oxi 3205 Contents
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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

Contents Oxi 3205
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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

Oxi 3205 Overview
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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.
1Keypad
2Display
3Socket field
1
2
3
3205
O
2
7.92
[Sal]
25.0
mg/l
°C

Overview Oxi 3205
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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_>).
Oxi 3205
<On/Off>: Switches the meter on or off
<M>: Selects the measured parameter
<CAL>:
<CAL_>:
Calls up the calibration procedure
Displays the calibration data
<>: Increments values, scrolls
<>: Decrements values, scrolls
<ENTER>:
<ENTER_>:
Opens the menu for measurement settings / confirms
entries
Opens the menu for system settings
ENTER

Oxi 3205 Overview
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1.2 Display
Function display
indicators
1Status information
2Measured value (with unit)
3Measured parameter
4Sensor symbol (calibration evaluation, calibration
interval)
5Measured temperature (with unit)
6Status line
25.0
7.92
°C
3
2
4
5
6
1
O2
mg/l
[Sal]
Error An error occurred during calibration

Overview Oxi 3205
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1.3 Socket field
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.
Connectors:
1D.O. sensor
2Service interface
21

Oxi 3205 Safety
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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:
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.
Further notes
Note
indicates notes that draw your attention to special features.
Note
indicates cross-references to other documents, e.g. operating
manuals.

Safety Oxi 3205
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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.
2.2 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 TECHNICAL 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.

Oxi 3205 Safety
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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:
has been damaged in transport
has been stored under adverse conditions for a lengthy period of
time
is visibly damaged
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:
EEC directives for protective labor legislation
National protective labor legislation
Safety regulations
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.

Safety Oxi 3205
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Oxi 3205 Commissioning
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3 Commissioning
3.1 Scope of delivery
D.O. meter Oxi 3205
4 batteries 1.5 V Mignon type AA
Short instructions
CD-ROM with detailed operating manual
3.2 Initial commissioning
Inserting the batteries
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.
1Unscrew the two screws (1) on the underside of the meter.
2 Open the battery compartment (2) on the underside of the
meter.
3Place four batteries (type Mignon AA) in the battery
compartment.
2
1

Commissioning Oxi 3205
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Switching on the meter
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).
4Close the battery compartment (2) and tighten the screws (1).
1Press 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).

Oxi 3205 Operation
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4 Operation
4.1 Switching on the meter
Switching on 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.
The measured value display appears.
Switching off Press the <On/Off> key.
Automatic switch-off
function
The instrument has an automatic switch-off function in order to save the
batteries (see section 4.3). The automatic switch-off function switches
off the measuring instrument if no key is pressed for an adjustable
period.
Display illumination The meter automatically switches off the display illumination if no key
is pressed for 30 seconds. The illumination is switched on with the next
keystroke again.
You can also generally switch the display illumination on or off (see
section 4.3).
O2
7.92 mg/l
25.1 °C
22.09.2008
08:00
Menu

Operation Oxi 3205
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4.2 General operating principles
This section contains basic information on the operation of the
Oxi 3205.
Operating elements,
display
An overview of the operating elements and the display is given in
section 1.1 and section 1.2.
Operating modes,
navigation
An overview of the operating modes and navigation of the Oxi 3205 is
given in section 4.2.1 and section 4.2.2.
4.2.1 Operating modes
The meter has the following operating modes:
Measuring
The measurement data of the connected sensor is shown in the
measured value display
Calibration
The course of a calibration with calibration information, functions
and settings is displayed
Setting
The system menu or a sensor menu with submenus, settings and
functions is displayed

Oxi 3205 Operation
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4.2.2 Navigation
Measured value display In the measured value display, you can
Open the menu for calibration and measurement settings with
<ENTER> (short keystroke)
Open the Configuration menu with the sensor-independent settings
with <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 −>).
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 displayed with a frame.
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.
Language: English
Illumination:On
Contrast:48 %
Switchoff time:30 min
Service information
Reset
Configuration
Calibration record
Calibration interval:14 d
Temperature unit °C
Sal correction Off
Reset
i Air pressure = 941 mbar
O2

Operation Oxi 3205
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Messages Information is marked by the i symbol. It cannot be selected. Example:
Note
The principles of navigation are explained in the section "Setting the
language" by reference of an example (see section 4.2.3).
Calibration record
Calibration interval:14 d
Temperature unit °C
Sal correction Off
Reset
i Air pressure = 941 mbar
O2

Oxi 3205 Operation
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4.2.3 Example on navigation: Setting the language
1Press the <On/Off> key.
The measured value display appears.
The instrument is in the measuring mode.
2Using <ENTER_>open the Configuration menu.
The instrument is in the setting mode.
3Select the Language submenu with <>< >.
The current selection is displayed with a frame.
4 Open the setting mode for the Language with <ENTER>.
O2
7.92 mg/l
25.1 °C
Language: English
Beep:Off
Illumination:On
Contrast:48 %
Switchoff time:30 min
Service information
Reset
Configuration

Operation Oxi 3205
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5Select the required language with <>< >.
6 Confirm the setting with <ENTER>.
The meter switches to the measuring mode.
The selected language is active.
Language: Deutsch
Illumination:On
Contrast:48 %
Switchoff time:30 min
Service information
Reset
Configuration