SCHOTT Instruments ProLab 2000 User manual

ba75577e03 11/2009
DRAFT November 25, 2009 2:33 pm
ProLab 2000
Operating manual
pH / ISE / conductivity / D.O. meter
with automatic sensor recognition
and electronic access control
MENU
OK

ProLab 2000
2ba75577e03 11/2009
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.
Warranty We guarantee the meter described for 3 years from the date of
purchase.
The meter warranty covers manufacturing faults that are discovered
within the warranty period.
The warranty does not cover components that are replaced during
maintenance work, e. g. batteries.
The warranty claim extends to restoring the meter to readiness for use
but not, however, to any further claim for damages. Improper handling
or unauthorized opening of the meter invalidates any warranty claim.
To ascertain the warranty liability, return the meter and proof of
purchase together with the date of purchase freight paid or prepaid.
CE conformity
Radio data transmission
SI Analytics GmbH hereby declares that the ProLab 2000 meter is in
compliance with the basic requirements and the other relevant
regulations of the directive 1999/5/EC.
The EC declaration of conformity can be requested from SI Analytics
GmbH.
Copyright ©2009, SI Analytics GmbH
Reprinting - even in the form of excerpts - is only allowed with the
explicit written authorization of SI Analytics GmbH.
Printed in Germany.

ProLab 2000
3
ba75577e03 11/2009
KONFORMITÄTSERKLÄRUNG
DECLARATION OF CONFORMITY
DÉCLARATION DE CONFORMITÉ
Wir erklären in alleiniger
Verantwortung, dass das
Produkt
pH-/ISE-/
Leitfähigkeits-/
Sauerstoff-
Messgerät
ProLab 2000
auf das sich diese Erklärung
bezieht, übereinstimmt mit
den Angaben im Kapitel
We declare under our sole
responsibility that the
product
pH / ISE /
conductivity / DO
measuring
instrument
ProLab 2000
to which thisdeclaration
relatesisin conformity with
the specificationsin the
chapter
Nous déclaronssous notre
seule responsabilité que le
produit
Appareil de mesure
pour pH/ISE/
conductivité/
oxygène
ProLab 2000
auquel se réfère cette
déclaration est conforme aux
indicationsduchapitre
30. Oktober, October 30, 30 octobre 2005
AGQSF 0000-A106-01/091030
SI AnalyticsGmbH
Hattenbergstr. 10
D-55122 Mainz
Deutschland, Germany, Allemagne
Technische Daten
pH-/ISE-/Leitfähigkeits-/Sauerstoff-Messgerät
ProLab 2000
30. Okitober 2009

ProLab 2000
4ba75577e03 11/2009

ProLab 2000 Contents
5
ba75577e03 11/2009
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1 General features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2 Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.3 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.4 Socket field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.5 Automatic sensor recognition . . . . . . . . . . . . . . . . . . . . . 13
1.6 Electronic access control . . . . . . . . . . . . . . . . . . . . . . . . 15
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.2 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . 18
3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.1 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.3 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1 Switch the meter on and off . . . . . . . . . . . . . . . . . . . . . . 21
4.2 General operating principles . . . . . . . . . . . . . . . . . . . . . 22
4.2.1 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . 22
4.2.2 Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.2.3 Navigation example 1: Setting the language . . . 25
4.2.4 Navigation example 2: Setting the date and time 27
4.3 Access control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.3.1 Administrating access authorizations . . . . . . . . 29
4.3.2 Lost your electronic key? . . . . . . . . . . . . . . . . . 31
4.3.3 Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.4 System settings (system menu) . . . . . . . . . . . . . . . . . . . 32
4.4.1 Data storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.4.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.4.3 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.4.4 Automatic Stability control . . . . . . . . . . . . . . . . . 35
4.5 pH value / ORP voltage . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.5.1 General information . . . . . . . . . . . . . . . . . . . . . . 36
4.5.2 Measuring the pH value . . . . . . . . . . . . . . . . . . 37
4.5.3 Measuring the ORP . . . . . . . . . . . . . . . . . . . . . . 39
4.5.4 Settings for pH and ORP measurements . . . . . 41
4.5.5 pH calibration . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.5.6 Calibration interval . . . . . . . . . . . . . . . . . . . . . . 47
4.5.7 Calibrating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4.6 Ion concentration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4.6.1 General information . . . . . . . . . . . . . . . . . . . . . . 52
4.6.2 Measuring the ion concentration . . . . . . . . . . . 53
4.6.3 Settings for ISE measurements . . . . . . . . . . . . 54

Contents ProLab 2000
6ba75577e03 11/2009
4.6.4 Calibrating for ISE measurements . . . . . . . . . . . 55
4.7 Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4.7.1 General information . . . . . . . . . . . . . . . . . . . . . . 61
4.7.2 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4.7.3 Temperature compensation . . . . . . . . . . . . . . . . 64
4.7.4 Settings for conductivity measuring cells . . . . . . 65
4.7.5 Determining the cell constant
(calibration in control standard) . . . . . . . . . . . . . 67
4.8 Dissolved oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
4.8.1 General information . . . . . . . . . . . . . . . . . . . . . . 71
4.8.2 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
4.8.3 Settings for D.O. sensors . . . . . . . . . . . . . . . . . . 74
4.8.4 D.O. calibration . . . . . . . . . . . . . . . . . . . . . . . . . 75
4.9 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
4.9.1 Manual storage . . . . . . . . . . . . . . . . . . . . . . . . . 81
4.9.2 Automatic storage at intervals . . . . . . . . . . . . . . 82
4.9.3 Reading the measurement data storage . . . . . . 84
4.9.4 Erasing the data storage . . . . . . . . . . . . . . . . . . 87
4.9.5 Displaying and downloading calibration records 87
4.10 Transmitting data (to a PC or printer) . . . . . . . . . . . . . . . 89
4.10.1 RS232 interface . . . . . . . . . . . . . . . . . . . . . . . . . 89
4.10.2 USB interface (device) . . . . . . . . . . . . . . . . . . . . 90
4.10.3 Options for data transmission . . . . . . . . . . . . . . 91
4.10.4 Operation with MultiLab pilot . . . . . . . . . . . . . . . 92
4.11 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
4.11.1 Resetting the sensor settings . . . . . . . . . . . . . . 92
4.11.2 Resetting the system settings . . . . . . . . . . . . . . 94
5 Maintenance, cleaning, disposal . . . . . . . . . . . . . . . . . 95
5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
5.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
5.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
6 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
6.1 pH and ORP measurement . . . . . . . . . . . . . . . . . . . . . . 97
6.2 ISE measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
6.3 Conductivity measurement . . . . . . . . . . . . . . . . . . . . . . 100
6.4 D.O. measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
6.5 General errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
7.1 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
7.2 Measuring ranges, resolution, accuracy . . . . . . . . . . . . 104
7.2.1 pH/ORP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
7.2.2 ISE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
7.2.3 Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

ProLab 2000 Contents
7
ba75577e03 11/2009
7.2.4 Dissolved oxygen . . . . . . . . . . . . . . . . . . . . . . 107
8 Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
9 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
A.1 Firmware update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
A.2 Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
A.2.1 Data storage . . . . . . . . . . . . . . . . . . . . . . . . . . 119
A.2.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
A.2.3 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
A.2.4 <STO_> . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
A.2.5 pH/U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
A.2.6 ISE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
A.2.7 Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
A.2.8 Oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Contents ProLab 2000
8ba75577e03 11/2009

ProLab 2000 Overview
9
ba75577e03 11/2009
1Overview
1.1 General features
The ProLab 2000 precision meter enables you to perform pH, ORP,
conductivity, dissolved oxygen (D.O.) and ion-selective measurements
rapidly and reliably.
The ProLab 2000 provides the maximum degree of ease of use,
reliability and, above all, measuring certainty for all applications.
The proven calibration procedures, and stability control function (SC)
and the sensor recognition function support your work with the meter.
In addition, the ProLab 2000 provides an electronic access control.
Documented measurement data is thus automatically assigned to a
user.
MENU
OK
1
2
4
3
1Keypad
2Display
3Reader field for electronic access control
4Socket field

Overview ProLab 2000
10 ba75577e03 11/2009
1.2 Keypad
In this operating manual, keys are indicated by brackets <..> .
The key symbol (e.g. <MENU/OK>) 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. <MENU/OK_>).
Key functions
MENU
OK
SCMODE
STO
ESC
PRINT
CAL
RCL
<On/Off> Switch the meter on/off
<MODE>
<MODE_>
Select measured parameter
Activate operation lock
<CAL>
<CAL_>
Call up calibration procedure
Open menu for calibration data storage
<SC> Switch on or off the stability control
function manually.
<STO>
<STO_>
Store measured value
Open menu for automatic storing
function
<RCL>
<RCL_>
Open menu for manually stored
measured values
Open menu for automatically stored
measured values
<PRINT>
<PRT_>
Print
Open menu for automatic printing
<▲> Increment values, scroll
MODE
CAL
SC
STO
RCL
PRINT

ProLab 2000 Overview
11
ba75577e03 11/2009
1.3 Display
The graphic display can display three measured parameters and the
current temperature value for each measured parameter at the same
time. The illumination enables to read the display even in the darkness.
<▼> Decrement values, scroll
<MENU/OK>
<MENU/OK_>
Confirm entries
Open setting menu for system settings
<ESC> Return to higher menu level /
Cancel inputs
MENU
OK
ESC
pH
6.949
24.0 °C
O
27.29
mg/l
24.0 °C
[SAL]
731 µS/cm 24.0 °C
[nLF][Tr2
26.04.06 10:37
Measured parameter
Measured value (with unit)
Temperature display
ID sensor symbol
CalClock
Status line

Overview ProLab 2000
12 ba75577e03 11/2009
1.4 Socket field
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).
Nearly all commercial sensors - especially SI Analytics sensors -
fulfill these requirements.
Connections:
1Conductivity measuring cell / D.O. electrode
2pH ions electrode
3Reference electrode
4Temperature sensor
5USB interface
6Power pack
7RS232 interface/analog output
21 3
456 7

ProLab 2000 Overview
13
ba75577e03 11/2009
1.5 Automatic sensor recognition
The automatic sensor recognition function enables
zto operate a sensor with different meters without recalibrating
zto operate different sensors with one meter without recalibrating
zto assign measurement data to a sensor
– measurement datasets are always downloaded to the interface
with the sensor type and sensor series number.
– measurement datasets are always stored together with the
sensor type and sensor series number.
zto assign calibration data to a sensor
– calibration data is always downloaded to the interface with the
sensor type and sensor series number.
zthe automatic activation of the cell constants for conductivity
sensors
To be able to use the automatic sensor recognition function a meter is
required that supports the automatic sensor recognition (e.g.
ProLab 2000), and a sensor (ID sensor) that is suitable for sensor
recognition.
In every ID sensor, sensor data is stored that clearly identifies the
sensor.
The sensor data is sent to the meter automatically via radio
communication and used for sensor identification there.
Note
With the ProLab 2000 meter, you can also operate non-ID sensors.
Then, however, you cannot use the advantages of the sensor
recognition function.
DIN
BNC

Overview ProLab 2000
14 ba75577e03 11/2009
ID sensors SI Analytics GmbH ID sensors support the automatic sensor
recognition function. Their sensor designation has the addition "ID",
e.g. A 161 1M DIN-ID electrode.
Note
Information on available ID sensors is given on the Internet or directly
by SI Analytics.
ID sensors connected to the ProLab 2000 meter can be recognized by
the ID sensor symbol on the display of the meter.
Sensor data from ID
sensors
ID sensors transmit the following sensor data to the meter:
zSENSOR ID
– Sensor type
– Sensor series number
zCalibration data
– Calibration date
– Calibration characteristics
– Calibration interval
– Selected buffer set (pH electrodes only)
The calibration data is updated in the ID sensor after each calibration
procedure. The ID sensor symbol flashes while this is done.
Note
While the ID sensor symbol is flashing, the sensor must not be
disconnected because otherwise the calibration data will not be
completely transmitted. The sensor will then have no valid calibration.
Note
If non-ID sensors are used, the calibration data from the meter is used
and also stored in the meter.
pH
7.000
25.0°C
26.04.06 10:37
ID sensor symbol

ProLab 2000 Overview
15
ba75577e03 11/2009
1.6 Electronic access control
The ProLab 2000 always documents measurement data and
calibration data with an ID number (USER ID).
If the USER ID is assigned to a certain user, all measurement data is
also assigned to the user in compliance with GLP.
The USER ID is easily and safely transmitted to the ProLab 2000 via
an electronic key. Each electronic key in the form of a keyring pendant
contains a key number. The key number is read by the meter via a
contactless radio data connection and used as the USER ID.
The meter checks the access authorization for the USER ID.
Measurements with an electronic key are only possible if the USER ID
is registered in the meter.
The measuring data is then documented along with the registered
USER ID.
If the USER ID of the electronic key is not registered in the meter,
access to the meter with this electronic key is denied.
Anonymous access is always possible. For anonymous access, the
USER ID 0 is used automatically.
By labeling measurement data without electronic key with USER ID 0,
this data can be separated from the GLP-compliant documentation of
measurements.
MENU
OK
Reader unit for
access control

Overview ProLab 2000
16 ba75577e03 11/2009

ProLab 2000 Safety
17
ba75577e03 11/2009
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 measuring system. The operating
manual must always be available within the vicinity of the meter.
Target group The meter was developed for work 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 The individual chapters of this operating manual use the following
safety instruction to indicate various types of danger:
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.
2.1 Authorized use
This meter is authorized exclusively for measurements of the pH, ORP,
conductivity, D.O. and ion-selective measurements in the laboratory.
The technical specifications as given in chapter 7 TECHNICAL DATA
(page 103) 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.

Safety ProLab 2000
18 ba75577e03 11/2009
2.2 General safety instructions
This instrument is built and inspected according to the relevant
guidelines and norms for electronic measuring instruments (see
page 103).
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 (page 103).
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.
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:
zhas been damaged in transport
zhas been stored under adverse conditions for a lengthy period of
time
zis visibly damaged
zno 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:
zEEC directives for protective labor legislation
zNational protective labor legislation
zSafety regulations
zSafety datasheets of the chemical manufacturers.

ProLab 2000 Commissioning
19
ba75577e03 11/2009
3 Commissioning
3.1 Scope of delivery
zProLab 2000 laboratory meter
zPower pack
z4 batteries 1.5 V Micro type AAA
z1 electronic administrator key (as keyring pendant)
z1 electronic key (as keyring pendant)
zCover
zUSB cable (Z875)
zCD-ROM with USB driver
zOperating manual
3.2 Power supply
The power pack supplies the meter with low voltage (9 V DC).
The batteries are only used to buffer the system time if the power
supply is interrupted.
CAUTION
The line voltage at the operating site must lie within the input
voltage range of the original power pack (see page 103).
CAUTION
Use original power packs only (see page 103).
1Insert the plug into the socket of the meter.
2 Connect the original power pack to an easily accessible power
outlet.

Commissioning ProLab 2000
20 ba75577e03 11/2009
3.3 Initial commissioning
Perform the following activities:
zInsert the batteries (see page 95)
zConnect the power pack (see page 19).
zSwitch on the meter (see page 21)
zSet the language (see page 25)
zSet the date and time (see page 27)
zSet up the access authorization for electronic keys (see page 29)