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.
The compact pH 3210 precision pH meter enables you to perform pH
measurements rapidly and reliably. The pH 3210 provides the
maximum degree of operating comfort, reliability and measuring
certainty for all applications.
The proven calibration procedures and automatic stability control
function (AR) support your work with the pH meter.
1Keypad
2Display
3Socket field
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5
OverviewpH 3210
ENTER
M
pH 3210
F1
F2
AR
CAL
STO
RCL
F1
F2
CAL
STO
RCL
1.1Keypad
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
_>:
<On/Off>:Switches the meter on or off
<M>:Selects the measured parameter
<CAL>:
<CAL
_>:
<STO>:
<STO_>
<RCL>:
<RCL_>
_>).
Softkey providing situation dependent functions , e.g.:
<F1>/[Menu]: Opens the menu for measurement settings
_>/[Menu]: Opens the menu for system settings
<F1
Calls up the calibration procedure
Displays the calibration data
Stores a measured value manually
Displays the manually stored measured values
<▲>: Increments values, scrolls
6
<▼>: Decrements values, scrolls
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pH 3210Overview
ENTER
AR
HOLD AR
25.0
6.093
pH
°C
4
3
2
5
6
7
8
1
0
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Menu
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<ENTER>:
<ENTER
<AR>Freezes the measured value (HOLD function)
_>:
Opens the menu for measurement settings / confirms
entries
Opens the menu for system settings
Switches the AutoRead measurement on or off
1.2Display
1Status information
2Measured value (with unit)
3Measured parameter
4Continuous measurement control (CMC function)
5Sensor symbol (calibration evaluation, calibration
interval)
6Measured temperature (with unit)
7Status line
8Softkeys and date + time
Function display
indicators
AutoCal
e.g. TEC
ConCalCalibration with any buffers
ErrorAn error occurred during calibration
LoBatBatteries are almost empty
ARStability control (AutoRead) is active
Calibration with automatic buffer recognition, e.g.
with the buffer set: Technical buffers
HOLDMeasured value is frozen (<AR> key)
7
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OverviewpH 3210
4
1
2
3
1.3Socket field
Connectors:
1pH electrode
2Reference electrode
3Temperature sensor
4Service interface
Caution
Only connect 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 sensors fulfill these conditions.
8
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pH 3210Safety
2Safety
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 groupThe 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 instructionsSafety 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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9
SafetypH 3210
2.1Authorized use
This meter is authorized exclusively for pH and ORP measurements in
a laboratory or field environment.
The technical specifications as given in chapter 7 T
ECHNICALDATA 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.
2.2General 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
ECHNICALDATA.
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.
10
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pH 3210Safety
Safe operationIf 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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11
SafetypH 3210
12
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pH 3210Commissioning
2
1
3Commissioning
3.1Scope of delivery
z pH meter, pH 3210
z 4 batteries 1.5 V Mignon type AA
z Short instructions
z CD-ROM with detailed operating manual
3.2Initial commissioning
Perform the following activities:
z Insert the supplied batteries
z Switch on the meter
z Set the date and time
3.2.1Inserting the batteries
1Unscrew the two screws (1) on the underside of the meter.
2Open the battery compartment (2) on the underside of the
meter.
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3Place four batteries (type Mignon AA) in the battery
compartment.
13
CommissioningpH 3210
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.
4Close the battery compartment (2) and tighten the screws (1).
3.2.2Switching on the meter
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).
Note
The meter has an energy saving feature to avoid unnecessary battery
depletion.
The energy saving feature switches off the meter if no key is pressed
during the adjusted interval. (How to set the switch-off interval, see
section 4.3.1).
3.2.3 Setting the date and time
2See section 4.2.4
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pH 3210Operation
pH
6.949
25.0
°C
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Menu
4Operation
4.1Switching on the meter
Switching onPress 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 offPress the <On/Off> key.
Automatic switch-offThe instrument has an automatic switch-off function in order to save the
batteries (see section 4.3.1). The automatic switch-off switches off the
meter if no key is pressed for an adjustable period.
Display illuminationThe meter automatically switches off the display illumination if no key
has been pressed for 15 seconds. The illumination is switched on with
the next keystroke again.
You can also generally switch the display illumination on or off (see
section 4.3.1).
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15
OperationpH 3210
4.2General operating principles
This section contains basic information on the operation of the
pH 3210.
Operating elements,
display
Operating modes,
navigation
An overview of the operating elements and the display is given in
section 1.1 and section 1.2.
An overview of the operating modes and navigation of the pH 3210 is
given in section 4.2.1 and section 4.2.2.
4.2.1Operating modes
The meter has the following operating modes:
z Measurement
The measurement data of the connected sensor is shown in the
measured value display
z Calibration
The course of a calibration with calibration information, functions
and settings is displayed
z Storage in memory
The meter stores measuring data automatically or manually
z Setting
The system menu or a sensor menu with submenus, settings and
functions is displayed
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pH 3210Operation
General
Measurement
Interface
Clock
Service information
Reset
System
22.09.2008
08:00
Back
Language:Deutsch
Beep:Off
Illumination
:On
Contrast:50 %
Switchoff time:1 h
General
22.09.2008
08:00
Back
4.2.2Navigation
Measured value displayIn the measured value display, you can
z open the respective measuring menu with <F1> (short
keystroke).
z open the Storage & config menu with the sensor-independent
settings by pressing <F1
_> (long keystroke, approx. 2 s on <F1>).
z change the display in the selected measuring window
(e. g. pH <−> mV) by pressing <M>.
Menus and dialogsThe 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.
z Submenus
The name of the submenu is displayed at the upper edge of the
frame. Submenus are opened by confirming with <ENTER>.
Example:
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z 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:
17
OperationpH 3210
Calibration record
Buffer
:AutoCalTEC
One point calibration:Yes
Calibration interval:7 d
Unit for slope
:mV/pH
i
2.00 4.01 7.00 10.01
pH
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08:00
Back
Calibration record
Buffer
:AutoCalTEC
One point calibration:Yes
Calibration interval:7 d
Unit for slope
:mV/pH
i
2.00 4.01 7.00 10.01
pH
22.09.2008
08:00
Back
z 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.
i
MessagesInformation is marked by the
symbol. It cannot be selected.
Example:
18
Note
The principles of navigation are explained in the two following sections
by reference of examples:
z Setting the language (section 4.2.3)
z Setting the date and time (see section 4.2.4).
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pH 3210Operation
pH
6.949
25.0
°C
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08:00
Menu
System
Data storage
Storage & config
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Back
4.2.3Example 1 on navigation: Setting the language
1Press the <On/Off> key.
The measured value display appears.
The instrument is in the measuring mode.
2Using <F1_>/[Menu] open the Storage & config menu.
The instrument is in the setting mode.
3Select the System submenu with <▲><▼>.
The current selection is displayed with a frame.
4Open the System submenu with <ENTER>.
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OperationpH 3210
General
Measurement
Interface
Clock
Service information
Reset