Page 1 Operating manual ProLab 4000 pH/ISE/Conductivity measuring instrument with automatic sensor recognition and electronic access control ba75646e03 12/2012 DRAFT December 10, 2012 1:25 pm...
Page 2 To ascertain the warranty liability, return the instrument and proof of purchase together with the date of purchase freight paid or prepaid. CE conformity SI Analytics GmbH hereby declares that the ProLab 4000 meter is in Radio data transmission compliance with the basic requirements and the other relevant regula- tions of the directive 1999/5/EC.
Page 3 Angaben im Kapitel indications du chapitre relates is in conformity with the specifications in the chapter Technische Daten pH-/ISE-/Leitfähigkeits-Messgerät ProLab 4000 30. Oktober 2009 SI Analytics GmbH Hattenbergstr. 10 D-55122 Mainz Deutschland, Germany, Allemagne 30. Oktober, October 30, 30 octobre 2005...
Page 4 ProLab 4000 ba75646e03 12/2012...
Page 5 Connecting the power pack..... . . 24 Switching on the ProLab 4000 ....25 Connecting the USB mouse .
Page 6 Contents ProLab 4000 Access to the meter ......47 Switch the meter on and off ..... . . 47 Login as a user .
Page 7 ProLab 4000 Contents ORP voltage........89 General information......89 Measuring the ORP.
Page 8 Contents ProLab 4000 10.2.10 Selecting and determining the nonlinear temperature compensation TC nLin4 ..154 10.2.11 Switching off the temperature compensation (TC off) ....... 156 10.3 Determining the cell constant (calibration in control...
Page 9 ProLab 4000 Contents 13.3 Data backup ....... . . 188 13.3.1 Data backup by the administrator .
Page 10: Contents Prolab
Contents ProLab 4000 ba75646e03 12/2012...
Page 11: Overview
The ProLab 4000 precision meter enables you to perform pH, ORP, conductivity and ion-selective measurements rapidly and reliably. Das ProLab 4000 provides the maximum degree of ease of use, reli- ability and, above all, measuring certainty for all applications. The proven calibration procedures, and stability control function (SC) and the sensor recognition function sup- port your work with the meter.
Page 12: Keypad
Overview ProLab 4000 Keypad MODE PQRS WXYZ PRINT Keys with dedicated Keys with dedicated functions are labeled on the meter. functions In this operating manual, they are identified by the key labeling, bold let- ters and angle brackets <..> .
Page 13 The keys of the alphanumeric keypad are used to enter numerals (<0...9>), letters (<A...Z>) and characters (<- .>). The keys of the alpha- numeric keypad only have a function if the ProLab 4000 is waiting for a character to be entered, e.g. in input fields for the ID during manual storage.
Page 14: Display
Overview ProLab 4000 Display The graphic color 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. Elements: Menu line (main menu)
Page 15: Socket Field
ProLab 4000 Overview Socket field RS232 TP 2 TP 1 USB Device Cond pH/U/ISE pH/U/ISE 9V/DC Probe 1 Probe Probe 2 Ref 2 Ref 1 USB Host input Connections: Conductivity measuring cell (Cond Probe) pH/ISE/ORP electrode (pH/U/ISE Probe 2) Reference electrode (Ref 2)
Page 16: Automatic Sensor Recognition
To be able to use the automatic sensor recognition function a meter is required that supports the automatic sensor recognition (e.g. ProLab 4000), and a sensor (ID sensor) that is suitable for sensor rec- ognition. In every ID sensor, sensor data is stored that clearly identifies the sen- sor.
Page 17: Id Sensors
Line A 161 1M-BNC-ID electrode. Note Information on available ID sensors is given on the Internet or directly by SI Analytics. ID sensors connected to the ProLab 4000 meter can be recognized by the ID sensor symbol on the display. ID sensor symbol...
Page 18: Sensor Data From Id Sensors
Overview ProLab 4000 1.5.2 Sensor data from ID sensors ID sensors transmit the following sensor data to the meter:  SENSOR ID – Sensor type – Sensor series number  Calibration data – Calibration date – User (having carried out the last calibration procedure) –...
Page 19: Electronic Access Control
Thus all measurement data is assigned to the user, in compliance with GLP. The user name is easily and safely transmitted to the ProLab 4000 via an electronic key. Each electronic key in the form of a keyring pendant contains a key number and a user name. The key number and user name are read by the meter via a contactless radio data connection.
Page 20 Overview ProLab 4000 ba75646e03 12/2012...
Page 21: Safety
ProLab 4000 Safety 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 man- ual before working with the measuring system. The operating manual must always be available within the vicinity of the meter.
Page 22: General Safety Instructions
Safety ProLab 4000 General safety instructions This instrument is built and inspected according to the relevant guide- lines and norms for electronic measuring instruments (see page 203). It left the factory in a safe and secure technical condition. Function and...
Page 23: Commissioning
ProLab 4000 Commissioning Commissioning Scope of delivery  ProLab 4000 laboratory meter  Power pack  4 batteries 1.5 V Micro type AAA  1 electronic administrator key (as keyring pendant)  1 electronic user key (as keyring pendant)  Cover ...
Page 24: Initial Commissioning
Perform the following activities:  Insert the batteries (see page 195)  Connect the power pack (see page 24).  Switch on ProLab 4000 (see page 25).  Connect the USB mouse (see page 26)  Setting the language (see page 58) ...
Page 25: Switching On The Prolab 4000
ProLab 4000 Commissioning Switching on the ProLab 4000 The ProLab 4000 indicates the Standby display. Switch the meter on with <OK>. The meter switches itself on. The Login dialog box is displayed. Note The default password for the administrator is "00001".
Page 26: Connecting The Usb Mouse
ProLab 4000 can be operated like a PC. Connecting sensors If an ID sensor is connected, the ProLab 4000 recognizes the sensor type, sensor name and series number of the sensor. If the ID sensor cannot be automatically assigned to a channel, the Automatic sensor recognition window prompts the manual assignment.
Page 27: Connecting An Id Sensor
ProLab 4000 Commissioning 3.6.1 Connecting an ID sensor ID sensor with Connect the temperature sensor of the ID sensor to the socket. temperature sensor Connect the ID sensor to the socket of the meter. The sensor is automatically assigned. The channel to which is was assigned shows the measurement data of the sensor.
Page 28: Connecting A Non Id Sensor
Calibrate the sensor. Connecting optional accessories The ProLab 4000 has several interfaces to connect accessories to. To connect a device, find the suitable interface in the following table. More information on how to operate an interface is provided with the description of the interface.
Page 29: Rs232 Interface (Serial Port)
(see operating manual of your burette). Operation with RS232 Connect the interface of the ProLab 4000 to the devices using the Z390 (PC) or Z893 (external USB printer Z890) cable. Set up the following transmission data on the PC/printer: Baud rate selectable between: 1200 ...
Page 30 Commissioning ProLab 4000 ba75646e03 12/2012...
Page 31: Usb-B Interface (Usb Device)
The meter is listed as a virtual COM interface among the con- nections in the Windows instrument manager. Operation at USB-B Connect the interface on the ProLab 4000 to the PC using a cable with (USB Device) a USB-A and a USB-B plug.
Page 32: Usb-A Interface (Usb Host)
USB Hostfor simultaneous operation of several USB devices Operation at USB-A Connect the interface on the ProLab 4000 to the external device using (USB Host) a cable with a USB-A and a USB-B plug. The device is automatically recognized and is immediately operable.
Page 33: Operating Principles
The ProLab 4000 is designed for mouse operation. With a mouse click you can carry out all functions except for the entry of characters and numerals. This means the ProLab 4000 can be operated as easily as a software on the PC.
Page 34 Operating principles ProLab 4000 Display Depending on the operating situation, the color display shows mea- surement data, calibration steps, setting dialogs or stored data. Main menu Channel Menu for a measured parameter Info line Softkey assignment Softkeys Main menu (1)
Page 35 ProLab 4000 Operating principles In the main menu, there are sensor independent functions and settings:  Manage configurations (File ) (see page 190)  Store current measurement data, and display and edit stored mea- surement and calibration data (Memory) (see page 161) ...
Page 36 Operating principles ProLab 4000 Channel (2) In the measured value display, for each connected sensor you can see a channel with special menus for the displayed measured parameter (Measuring, Calibration). Menu for a measured Menus for a measured parameter comprise sensor dependent func-...
Page 37: File System
Operating principles File system Files With the ProLab 4000 you can store data in files just like using a PC. Different data is stored in an extra file, such as  manually stored measured values  automatically stored measured values ...
Page 38: Entry Of Numerals, Letters And Characters
Operating principles ProLab 4000 Entry of numerals, letters and characters Numerals, letters, punctuation marks and special characters are entered on the alphanumeric keypad on the meter or an external key- board. Entering characters is required in operating situations such as the fol- lowing: ...
Page 39 ProLab 4000 Operating principles Complete and confirm the ID with <A...9>. Mouse operation: With the mouse, you have in all entry fields the additional option of showing a keyboard with the right mouse button. You can then enter letters or numerals with the mouse.
Page 40: Navigation
PC software. In each dialog box there are operating elements such as register cards, selection lists, buttons or input fields. Note The ProLab 4000 is designed to be operated with a mouse. A suitable mouse is included in the scope of delivery. General operating...
Page 41: Navigation In The Measured Value Display
ProLab 4000 Operating principles 4.4.1 Navigation in the measured value display The display shows, for example, the measurement data of all activated channels, the main menu, the sensor menu and the softkey functions.  Using [Tab], activate channels or the main menu ...
Page 42: Navigation In Menus
Operating principles ProLab 4000 4.4.2 Navigation in menus A menu item contains submenus, executes a function or opens a dialog box. The selection is made with the <><> and <><> keys or the mouse. The current selection is highlighted.  Menus Submenus are marked by an arrow to the right ().
Page 43 ProLab 4000 Operating principles Highlight a menu item with <><> and <><>. The highlighted menu item is displayed inverse. Confirm the highlighted menu item with <OK>. When a function is executed the main menu is closed and the function executed, or a dialog box opens up.
Page 44: Navigation In Dialog Boxes
Operating principles ProLab 4000 4.4.3 Navigation in dialog boxes Dialog boxes contain further subelements such as register cards, selection lists and buttons. The elements are selected with the [Tab] softkey. Within a list or register card, they are selected with the <><>...
Page 45: Navigation In The File Selection Dialog Box
ProLab 4000 Operating principles 4.4.4 Navigation in the file selection dialog box The file selection dialog is opened if a file is to be created, stored, selected or deleted. All files are stored in the folder of the user. Each user can create or delete subfolders in his/her folder.
Page 46 Operating principles ProLab 4000 Operating example: Highlight an element in a file dialog box with [Tab]. Highlighted Navigation and settings elements such as buttons are marked by a dotted frame. in file selection dialogs Highlighted input fields are displayed inverse.
Page 47: Access To The Meter
ProLab 4000 Access to the meter Access to the meter Switch the meter on and off Switching on Switch the meter on with <On/Off>. The self-test, meter designation, software version and subse- quently the Login dialog box appear. Switching off Switch off the meter with <On/Off>.
Page 48 Access to the meter ProLab 4000 Note The default password for the administrator is "00001". For your safety, change it as soon as possible (see page 49). No password entry is required for anonymous access. Login with electronic The Login dialog box displays the instruction: Place the electronic key on the reader field.
Page 49: Password For Login
If the used of a password for login to the meter was set by the admin- istrator, each user has to enter his or her password during the login. The ProLab 4000 is delivered with the password "00001" for the user name, Administrator . Change this password as soon as possible.
Page 50: Lock
Access to the meter ProLab 4000 Lock During operation (e.g. if the automatic storing function is active), the activated lock prevents the inadvertent use of the meter with the name of the registered user. The lock can only can only be released with the currently registered electronic key or the administrator key.
Page 51: Access Control And User Rights
In the Access control register card you define the general access set- tings that will apply to all users. User rights Each user is given user rights with the ProLab 4000. The user rights are limited by the user type and configuration: User type User rights ...
Page 52: Access Control
Open the User menu with Administration..The User administration dialog box pops up. The General register card is open. Select the type of access and confirm with [OK]. The new setting is active when the ProLab 4000 is switched on the next time. ba75646e03 12/2012...
Page 53: User Management And Assigning User Rights
ProLab 4000 Access to the meter 5.5.2 User management and assigning user rights The ProLab 4000 has basic user management functions. The adminis- trator can  add new users  delete users  delete the password assigned to a user ...
Page 54 Access to the meter ProLab 4000 Adding a new user Enter a new user name in the New user field. Place an electronic user key on the reader field. The key number and a user name already stored in the key are displayed.
Page 55: Lost Your Electronic Key
ProLab 4000 Access to the meter Erasing the password Highlight a user in the list of users. for a registered user In the context menu, select the menu item, Delete old pass- word. A safety query appears. After confirming the safety query the password for the currently highlighted user is deleted.
Page 56: System Functions
System functions ProLab 4000 System functions System functions are all functions that are independent of the probe. Overview: System settings The following sensor-independent meter features can be adjusted in the System menu and its submenus: Menu item Setting Description System –...
Page 57 ProLab 4000 System functions Menu item Setting Description System – Signal On () Switches on or off the acoustic signal. The signal sounds e.g. when a stable measured value has been recognized (stability control) – Country and language... – Country...
Page 58: Selecting The Language
System functions ProLab 4000 Selecting the language Menus can be displayed in different languages. The language is selected in the System main menu. Open the System / Country and language... menu. The Country and language window opens. Select a language in the Language list.
Page 59: Setting The Date And Time
ProLab 4000 System functions Setting the date and time The data and time are displayed in the local format, according to the Country setting (see above). The date and time are set in the menu, System / Date and time..
Page 60: Selecting The Channels For Measured Value Display
System functions ProLab 4000 Selecting the channels for measured value display In the Window / Channels... you can define which channels are visible in the measured value display. Depending on the number of activated measurement data one, two or three sensor data are displayed at the same time.
Page 61: Temperature
ProLab 4000 System functions Mark the option fields, USB printer, Serial interface and USB interface. The interfaces are selected for data download. If data should be downloaded to the Serial interface or USB interface interfaces: Set the baud rate in the respective Baud list field.
Page 62: Temperature Measurement
System functions ProLab 4000 6.7.2 Temperature measurement For reproducible measurements it is essential to determine the corre- sponding temperature value. The measuring system receives the temperature value from:  a temperature sensor integrated in the sensor,  a temperature sensor integrated in another sensor, ...
Page 63: Automatic Stability Control
ProLab 4000 System functions Automatic stability control The Autom. stability control function continuously checks the stability of the measurement signal. The stability has a considerable impact on the reproducibility of measured values. You can activate or switch off the Autom. stability control function (menu, Autom.
Page 64: Color Assignment
System functions ProLab 4000 Note The stability criteria that apply to a measured parameter are given in the description of the measured parameter. You can change the assignment of colors to conditions (see page 64). Color assignment For easy differentiation, the following conditions are highlighted by a background color: ...
Page 65: Reset
ProLab 4000 System functions 6.10 Reset You can reset (initialize) all sensor settings and sensor-independent settings separately from each other. 6.10.1 Resetting the sensor settings Note The calibration data is reset to the default settings together with the measuring parameters. Recalibrate after performing a reset.
Page 66: Resetting The System Settings
System functions ProLab 4000 Setting Default settings Temperature coeffi- 2.000 %/K cient (TC) of the linear temperature compen- sation TDS factor 1,00 6.10.2 Resetting the system settings The following system settings are reset to the default settings with the System / Reset function:...
Page 67: List Of Open Windows
6.11 List of open windows The Window menu item in the main menu provides an overview of the open windows of the ProLab 4000. Open recorder windows and the measured value display of the indicated sensors appear in the list of open windows.
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Page 69: General Information
ProLab 4000 General information Temperature For reproducible pH measurements, it is essential to measure the tem- measurement perature of the test sample. You have the following options to measure the temperature:  Automatic temperature measurement with – Temperature sensor (NTC30 or Pt1000) integrated in electrode (if available).
Page 70: Measuring The Ph Value
ProLab 4000 Measuring the pH value 7.2.1 Preparatory activities Perform the following preparatory activities when you want to measure: Adjust the temperature of the solutions and measure the cur- rent temperature if the measurement is made without a temper- ature sensor.
Page 71: Measuring
ProLab 4000 7.2.2 Measuring Perform the preparatory activities (see page 69). Immerse the pH electrode in the test sample. If necessary, select the pH parameter with <MODE>. Stability control The Stability control function checks the stability of the measurement signal. The stability has a considerable impact on the reproducibility of measured values.
Page 72 ProLab 4000 Note You can terminate prematurely the Stability control function with <OK> manually at any time. If the Stability control function is termi- nated prematurely, the current measurement data is not downloaded to the interface. Using <SC> or <MODE>, release the frozen measured value.
Page 73: Measurement Settings
ProLab 4000 7.2.3 Measurement settings All settings for pH measurements are in the Measuring menu. Menu item Setting Description Measuring – pH resolution High () Resolution of the pH display: Medium High = 0.001 Medium = 0.01 Low = 0.1 –...
Page 74: Calibration
ProLab 4000 Calibration Why calibrate? pH electrodes age. This changes the zero point (asymmetry) and slope of the pH electrode. As a result, an inexact measured value is dis- played. Calibration determines the current values of the zero point and slope of the electrode and stores them.
Page 75 ProLab 4000 Buffer set * pH values DIN 19267 * 1,090 25 °C 4,650 6,790 9,230 Mettler EU 1,679 25 °C 4,003 7,002 10,013 Mettler US * 1,995 25 °C 4,005 7,002 9,208 Fisher * 2,007 25 °C 4,002 7,004...
Page 76 ProLab 4000 Buffer set * pH values Reagecon TEC * 2,000 25 °C 4,010 7,000 10,000 Reagecon 20 * 2,000 20°C 4,000 7,000 10,000 13,000 Reagecon 25 * 2,000 25 °C 4,000 7,000 10,000 13,000 Riedel-de Haen * 2,000 20°C...
Page 77 PC, with the <PRINT> key. Note The calibration record is automatically transmitted to the interface after calibrating. Sample record: Print date26.04.07 16 was selected:13 ProLab 4000 (06249876) Current user: 1234567890 CALIBRATION pH Calibration date20.04.07 10:14:03 A 161 1M-BNC-ID (A062498765) User: Administrator...
Page 78 ProLab 4000 Calibration evaluation After calibrating, the meter automatically evaluates the calibration. The zero point and slope are evaluated separately. The worse evaluation of both is taken into account. The evaluation appears on the display and in the calibration record.
Page 79 ProLab 4000 7.3.1 Carrying out a calibration procedure (example: AutoCal DIN) Make sure the Calibration / pH calibration type / Buffer sets setting is selected correctly and the AutoCal calibration type is marked (see page 73). Use any one to five buffer solutions of the selected buffer set.
Page 80 ProLab 4000 Recognized nominal buffer value (referring to 25 °C) Current electrode voltage Current temperature value Selected buffer set Wait for the measurement with stability control to end. Terminate the stability control with [OK]. The pHX calibration window for the according to buffer solution pops up and the Finish with 1-point calibration infotext is dis- played.
Page 81 ProLab 4000 Using [OK], confirm the Finish with 1-point calibration infotext and take over the new calibration values. The calibration record is displayed and output to the interface. The calibration procedure is finished. Continue the calibration with [Continue]. Cancel the calibration procedure without taking over the cali- bration values with [Cancel], or <ESC>.
Page 82 ProLab 4000 Note A calibration line is determined for the two-point calibration. Continuing with three- When measuring without temperature sensor: point to five-point  Measure the temperature of the standard solution using a calibration thermometer. (Buffer ) DIN)  Open the setting window for the temperature value with [Man.
Page 83 ProLab 4000 7.3.2 Carrying out a calibration procedure (example: VariCal) Make sure the Calibration / pH calibration type / VariCal calibration type is marked (see page 73). Single-point calibration Use any buffer solution for this rapid method. The calibration will be the more exact the nearer the pH value of the buffer solution is to that of the test sample.
Page 84 ProLab 4000 Recognized nominal buffer value (referring to 25 °C) Current electrode voltage Current temperature value Selected buffer set Wait for the measurement with stability control to end. Terminate the stability control with [OK]. The pHX calibration window for the according to buffer solution pops up and the Finish with 1-point calibration infotext is dis- played.
Page 85 ProLab 4000 Using [OK], confirm the Finish with 1-point calibration infotext and take over the new calibration values. The calibration record is displayed and output to the interface. The calibration procedure is finished. Continue the calibration with [Continue]. Cancel the calibration procedure without taking over the cali- bration values with [Cancel], or <ESC>.
Page 86 ProLab 4000 Note A calibration line is determined for the two-point calibration. ba75646e03 12/2012...
Page 87: Calibration Settings And Calibration Data
ProLab 4000 7.3.3 Calibration settings and calibration data In the Calibration menu, you can  set the calibration interval,  define the calibration type and  view the calibration data. Menu item Setting Description Calibration – pH calibration type – AutoCal ()
Page 88: Calibration Interval
ProLab 4000 7.3.4 Calibration interval The calibration interval and calibration evaluation are indicated on the display as the CalClock. CalClock The remaining time of the calibration interval is indicated by the seg- mented ring around the calibration evaluation. This segmented ring reminds you to calibrate regularly.
Page 89: Orp Voltage
ProLab 4000 ORP voltage ORP voltage General information You can measure the following variables:  ORP [mV]  Relative ORP [mV] Temperature The temperature value is measured and documented with all measure- measurement ments. You have the following options to measure the temperature: ...
Page 90: Measuring The Orp
ORP voltage ProLab 4000 Measuring the ORP 8.2.1 Preparatory activities Perform the following preparatory activities when you want to measure: Adjust the temperature of the solutions and measure the cur- rent temperature if the measurement is made without a temper- ature sensor.
Page 91: Measuring
ProLab 4000 ORP voltage 8.2.2 Measuring Note ORP electrodes are not calibrated. However, you can check ORP electrodes using a test solution. Perform the preparatory activities (see page 69). Highlight the channel of the electrode in the measured value display.
Page 92 ORP voltage ProLab 4000 With <OK> activate the Stability control function. The background color is red as long as the measured value does not meet the stability criterion. As soon as the measured value is stable, the background color is green. The current measurement data is downloaded to the interface.
Page 93: Measuring The Relative Orp
ProLab 4000 ORP voltage 8.2.3 Measuring the relative ORP Note The relative ORP can be determined with pH and ORP electrodes. To measure the difference of the ORPs of two solutions it is best to use two ORP electrodes. Define one of the ORP electrodes as the refer- ence in the menu.
Page 94 ORP voltage ProLab 4000 As an alternative you can also determine the difference of the ORPs of two solutions with one ORP electrode only. To do so, first define the ORP of one solution as the zero point. Perform the preparatory activities (see page 69).
Page 95 ProLab 4000 ORP voltage In the measured value display, mark the channel of the ORP or pH electrode. If necessary, select the U or dU parameter with <MODE>. Freeze the measured value with <SC>. The display switches to the display of the selected channel as necessary.
Page 96: Measurement Settings
ORP voltage ProLab 4000 8.2.4 Measurement settings The following settings are possible for ORP measurements in the Mea- suring menu: Menu item Setting Description Measuring – High resolution () Resolution of the mV display: () = 0.1 mV ( ) = 1 mV –...
Page 97: Ion Concentration
Operation with burettes Measurements with ISE methods can be automated by controlling burettes with the meter:  Connect the burette to the RS232 interface of the ProLab 4000  If necessary, interlink the burettes (see also operating manual of the burette).
Page 98: Measuring The Ion Concentration
Ion concentration ProLab 4000 Measuring the ion concentration 9.2.1 Preparatory activities Perform the following preparatory activities when you want to measure: Connect an ion sensitive electrode to the meter. Highlight the channel of the electrode in the measured value display.
Page 99: Measuring
ProLab 4000 Ion concentration 9.2.2 Measuring Perform the preparatory activities according to page 97. Immerse the electrode in the test sample. Temperature for For precise ion selective measurements, the temperature difference calibrating and between measurement and calibration should not be greater that 2 K.
Page 100 Ion concentration ProLab 4000 With <OK> activate the Stability control function. While the measured value does not meet the stability criterion, the background color is red. As soon as a stable measured value is recognized, the current measurement data is downloaded to the interface. The mea- sured values of all channels meeting the criterion for stability control are marked by SC.
Page 101: Measurement Settings
ProLab 4000 Ion concentration 9.2.3 Measurement settings All settings for ion selective measurements are done in the Measuring menu. Menu item Setting Description Measuring – ISE settings – Units – mg/l Selection with which unit the mea- surement result and calibration –...
Page 102 Ion concentration ProLab 4000 Menu item Setting Description Measuring – Address of TISAB/ISA : Each burrete must have a distinct (1...3) address (1...3) so it can be indi- vidually addressed. – Address of standard/sample : (1...3) INFO: The address of the burette must also be set on the burette –...
Page 103: Calibration
ProLab 4000 Ion concentration Calibration Why calibrate? Ion-selective electrodes age and are temperature-dependent. This changes the slope. As a result, an inexact measured value is displayed. Calibration determines the current value of the slope of the electrode and stores it in the instrument.
Page 104 PC, with the <PRINT> key. Note The calibration record is automatically transmitted to the interface after calibrating. Sample record: Print date26.04.07 16:13 ProLab 4000 (06249876) Current user: 1234567890 CALIBRATIONISE Calibration date20.04.07 10:14:03 User: Administrator Standard 1: 0.010 mg/l...
Page 105 ProLab 4000 Ion concentration Calibration evaluation After calibrating, the meter automatically evaluates the calibration. Display Calibration Magnitude of the slope [mV] record Ions with Ions with valency 1 valency 2 50.0 ... 70.0 25.0 ... 35.0 < 50 or > 70 <...
Page 106: Carrying Out Calibration
Ion concentration ProLab 4000 9.3.1 Carrying out calibration Use two to nine standard solutions in ascending or descending order. Note When calibrating within the framework of a method measurement, it is always a two-point calibration. Preparatory activities Perform the following preparatory activities when you want to calibrate: Connect an ion sensitive electrode to the meter.
Page 107 ProLab 4000 Ion concentration When measuring without temperature sensor:  Measure the temperature of the standard solution using a thermometer.  Open the setting window for the temperature value with [Man. temp.].  Enter the temperature and confirm with [OK].
Page 108 Ion concentration ProLab 4000 Wait for the measurement with stability control to end. Take over the calibration value with [OK]. The ISE standard input window for the entry of the concentra- tion of the second standard solution pops up. Continuing with two- Select a value from the ISE-Std list.
Page 109 ProLab 4000 Ion concentration Using [OK], confirm the Finish with 2-point calibration infotext and take over the new calibration values. The calibration record is displayed and output to the interface. The calibration procedure is finished. Continue the calibration with [Continue].
Page 110: Calibration Data
Ion concentration ProLab 4000 9.3.2 Calibration data In the Calibration menu, you can view the calibration data of ISE cali- brations. Menu item Description Calibration – Calibration record... Displays the calibration record of the last calibration. – Calibration history... Displays the calibration history of the last calibrations.
Page 111: Blank Value Correction
ProLab 4000 Ion concentration Blank value correction If the ion concentration in the sample is so small that it is not in the lin- ear range of the electrode, you can increase the ion concentration in the linear range with the blank value correction by the addition of a blank value solution.
Page 112: Reference Measurement
Ion concentration ProLab 4000 Reference measurement A reference measurement enables you to assign any concentration value to the calibration curve of your electrode for a specific ion con- centration (reference concentration). Prerequisite: A valid calibration must be available. Determining the...
Page 113: Measuring With Increment Procedure (Methods)
ProLab 4000 Ion concentration Measuring with increment procedure (methods) 9.6.1 Selecting the measuring method The following methods are supported:  Standard addition  Double standard addition  Standard subtraction  Sample addition  Standard subtraction  Blank value addition (Standard addition with blank value correction) Perform the preparatory activities (see page 98).
Page 114: Standard Addition
Ion concentration ProLab 4000 9.6.2 Standard addition In the Standard addition procedure, a known amount of standard solu- tion is added to the sample. The ion concentration in the sample is calculated based on the change in potential. Check the currently displayed ion.
Page 115 ProLab 4000 Ion concentration In the Sample register, enter the values for the sample volume (Sample volume) and the volume of the ISA/TISAB solution (ISA/TISAB volume) as necessary. Use [Dosing] to automatically add the adjusted volume of the ISA/TISAB solution (ISA/TISAB volume).
Page 116 Ion concentration ProLab 4000 In the Standard register, enter the values for Standard volume and Standard concentration if necessary. Use [Dosing] to automatically add to the sample the adjusted volume of the standard solution (Standard volume) If the burette control is inactive:...
Page 117 ProLab 4000 Ion concentration Change the displayed unit of the measured value with [Unit] if necessary. If required, display the record of the current measurement with [Record]. Start measuring further samples with [Continue]. Repeat steps 5 - 15 for all samples.
Page 118: Double Standard Addition
Ion concentration ProLab 4000 9.6.3 Double standard addition In the Double standard addition procedure, a known amount of stan- dard solution is added to the sample in two steps. First, one percent of the sample volume is added, then 2 percent of the sample volume is added.
Page 119 ProLab 4000 Ion concentration Thoroughly rinse the electrode with deionized water. Immerse the electrode in the sample. Start the measurement with [Continue]. After end of the measurement, the Standard pops up. In the Standard register, enter the value for Standard concen- tration if necessary.
Page 120 Ion concentration ProLab 4000 Start the measurement with [Continue]. The measured value is checked for stability (Stability control). Wait for the measurement with stability control to end. Take over the measured value with [OK]. The Standard register opens up. Use [Dosing] to automatically add to the sample the adjusted volume of the standard solution (Standard volume) (2 vol% of sample solution).
Page 121 ProLab 4000 Ion concentration Change the displayed unit of the measured value with [Unit] if necessary. If required, display the record of the current measurement with [Record]. Start measuring further samples with [Continue]. Repeat steps 2 - 14 for all samples.
Page 122: Standard Subtraction
Ion concentration ProLab 4000 9.6.4 Standard subtraction In the "Standard Subtraction" procedure, a known amount of standard solution is added to the sample (as complexing agent or precipitating agent) and, thus, the ion concentration lowered. The ion concentration in the sample is calculated from the change in potential.
Page 123 ProLab 4000 Ion concentration In the Sample register, enter the values for the sample volume (Sample volume) and the volume of the ISA/TISAB solution (ISA/TISAB volume) as necessary. Use [Dosing] to automatically add the adjusted volume of the ISA/TISAB solution (ISA/TISAB volume).
Page 124 Ion concentration ProLab 4000 In the Standard register, enter the values for Standard volume and Standard concentration if necessary. Use [Dosing] to automatically add to the sample the adjusted volume of the standard solution (Standard volume). If the burette control is inactive:...
Page 125 ProLab 4000 Ion concentration Change the displayed unit of the measured value with [Unit] if necessary. If required, display the record of the current measurement with [Record]. Start measuring further samples with [Continue]. Repeat steps 5 - 16 for all samples.
Page 126: Sample Addition
Ion concentration ProLab 4000 9.6.5 Sample addition In the Sample addition procedure, a known amount of test sample is added to the standard solution. The ion concentration in the sample is calculated from the change in potential. Check the currently displayed ion.
Page 127 ProLab 4000 Ion concentration In the Standard register, enter the values for Standard vol- umeStandard concentration and ISA/TISAB volume if neces- sary. Use [Dosing] to automatically add the adjusted volume of the ISA/TISAB solution (ISA/TISAB volume). If the burette control is inactive: Add the adjusted volume of the ISA/TISAB solution (ISA/TISAB volume) manually.
Page 128 Ion concentration ProLab 4000 In the Sample register, enter the values for the sample volume (Sample volume) if necessary. Use [Dosing] to automatically add to the standard solution the adjusted volume of the sample (Sample volume). If the burette control is inactive:...
Page 129 ProLab 4000 Ion concentration Change the displayed unit of the measured value with [Unit] if necessary. If required, display the record of the current measurement with [Record]. Start measuring further samples with [Continue]. Repeat steps 5 - 15 for all samples.
Page 130: Sample Subtraction
Ion concentration ProLab 4000 9.6.6 Sample subtraction In the Sample subtraction procedure, a known amount of test sample is added to the standard solution. The ion concentration in the sample is calculated from the change in potential. The sample subtraction is one method for the indirect determination of ions.
Page 131 ProLab 4000 Ion concentration In the Standard register, enter the values for Standard vol- umeStandard concentration and ISA/TISAB volume if neces- sary. Use [Dosing] to automatically add the adjusted volume of the ISA/TISAB solution (ISA/TISAB volume). If the burette control is inactive: Add the adjusted volume of the ISA/TISAB solution (ISA/TISAB volume) manually.
Page 132 Ion concentration ProLab 4000 In the Sample register, enter the value for the sample volume (Sample volume) if necessary. Use [Dosing] to automatically add to the standard solution the adjusted volume of the sample (Sample volume). If the burette control is inactive:...
Page 133 ProLab 4000 Ion concentration Change the displayed unit of the measured value with [Unit] if necessary. If required, display the record of the current measurement with [Record]. Start measuring further samples with [Continue]. Repeat steps 5 - 16 for all samples.
Page 134 Ion concentration ProLab 4000 9.6.7 Blank value addition (Standard addition with blank value correction) In the "Standard addition with blank value correction" procedure, a known amount of standard solution is added to the sample in two steps. With the first addition, the ion concentration is raised to the linear range of the electrode characteristic curve.
Page 135 ProLab 4000 Ion concentration Measuring In the Sample register, enter the following values:  the volume of the sample (Sample volume)  the volume of the ISA/TISAB solution (ISA/TISAB volume)  the volume of the blank value solution (Blank value volume) ...
Page 136 Ion concentration ProLab 4000 Immerse the electrode in the sample that was supplemented with blank value solution. Start the measurement with [Continue]. The measured value is checked for stability (Stability control). Wait for the measurement with stability control to end.
Page 137 ProLab 4000 Ion concentration Start the measurement with [Continue]. The measured value is checked for stability (Stability control). Wait for the measurement with stability control to end. Take over the measured value with [OK]. The Calculation register with the calculated measured value pops up.
Page 138 Ion concentration ProLab 4000 ba75646e03 12/2012...
Page 139: Conductivity
ProLab 4000 Conductivity Conductivity 10.1 General information You can measure the following variables:  Conductivity  Specific resistance  Salinity  Total dissolved solids (TDS) The meter provides the following functions:  AutoRange (automatic selection of the measuring range). If a mea- suring range is exceeded, AutoRange causes the meter to automat- ically change to the next higher measuring range and back again.
Page 140: Measuring
Conductivity ProLab 4000 Note The selection of the measuring cell and setting of the cell constant is made in the conductivity measuring menu (see page 142). The cell constant to be set must either be taken from the operating manual of the measuring cell or is printed on the measuring cell.
Page 141 ProLab 4000 Conductivity Stability control The Stability control function checks the stability of the measurement signal. The stability has a considerable impact on the reproducibility of measured values. The background color is red until the measured value is stable. Regardless of the setting for Autom. stability control (see page 63) in the System menu, you can start the Stability control function manually at any time.
Page 142: Measurement Settings
Conductivity ProLab 4000 10.2.3 Measurement settings The following measurement settings are possible for conductivity mea- suring cells: Menu item Setting Description Measuring – Cell constant – Calibrated cell constant Measuring cells whose cell constant is determined by calibration in KCL control standard (calibration ranges see page 157).
Page 143 ProLab 4000 Conductivity Menu item Setting Description Measuring – Reference temperature – Tref 25 Reference temperature – Tref 20 – TDS factor setting... 0.40 ... 1.00 TDS factor This setting only applies to the mea- sured parameter, TDS. If a TDS factor is used, it is displayed in the Status line.
Page 144: Determining/Setting The Temperature Compensation
For diluted test samples, linear and nonlinear temperature dependen- cies are stored in the meter. For other test samples the ProLab 4000 provides the option of deter- mining the temperature dependency and, if necessary, the concentra- tion dependency of the conductivity as well.
Page 145 ProLab 4000 Conductivity Temperature compensa- For the measurement of aqueous solutions tion for diluted solutions  in a low concentration range (diluted solution)  in a small temperature range (|T - Tref| < 10 K)  with a fixed reference temperature at 20 °C or 25 °C, the procedures of linear (TC lin) and nonlinear (TC nLF) temperature compensation are suitable.
Page 146 Conductivity ProLab 4000 Temperature compensa- For the measurement of aqueous solutions tion for concentrated  in a wide concentration range solutions  in a wide temperature range (|T - Tref| > 10 K)  with freely adjustable reference temperature, procedures with an individually determined nonlinear temperature compensation are suitable (designation: TC nLin1 ...
Page 147: Selecting The Nonlinear Temperature Compensation Tc Nlf
ProLab 4000 Conductivity 10.2.5 Selecting the nonlinear temperature compensation TC nLF Highlight the channel of the conductivity measuring cell in the measured value display. If necessary, select the measured parameter with <MODE>. Select the nonlinear temperature compensation with Measur- ing / Temperature coefficient / TC nLF.
Page 148: Selecting And Adjusting The Nonlinear Temperature Compensation Tc Nlin1
= Temperature [°C] Tref = Reference temperature [°C] The equation includes two temperature coefficients, TC and TC . In the ProLab 4000 meter, the temperature coefficients TC and TC stored for the following test samples: NaOH NaCl Concentration c 0,67 0,85...
Page 149 ProLab 4000 Conductivity Select a test sample with permanently stored coefficients (NaCl, KCl, NaOH, HCl) or the freely adjustable coefficients (adjustable). The stored temperature coefficients are displayed during the selection of the test sample. With freely selectable temperature coefficients only: Enter each temperature coefficient with an exponent (unit: 1/°C...
Page 150: Selecting And Determining The Nonlinear Temperature Compensation Tc Nlin2
Conductivity ProLab 4000 10.2.8 Selecting and determining the nonlinear temperature compensation TC nLin2 Highlight the channel of the conductivity measuring cell in the measured value display. If necessary, select the measured parameter with <MODE>. Immerse the measuring cell in the test sample.
Page 151 ProLab 4000 Conductivity Note The measuring method can only be started if Ref. temp., Start temp. and Temp. interval are selected so that the reference temperature cor- responds to the nominal temperature of a measuring point: Ref. temp. = Start temp. + x*Temp. interval Warm or cool the test sample to the start temperature Start temp..
Page 152: Selecting And Determining The Nonlinear Temperature Compensation Tc Nlin3
Conductivity ProLab 4000 10.2.9 Selecting and determining the nonlinear temperature compensation TC nLin3 Highlight the channel of the conductivity measuring cell in the measured value display. If necessary, select the measured parameter with <MODE>. Immerse the measuring cell in the test sample.
Page 153 ProLab 4000 Conductivity Warm or cool the measuring solution (standard 1) to the start temperature Start temp.. As soon as the temperature of the measuring point is achieved and a stable value is recognized, the measurement is automat- ically started and the dataset stored.
Page 154: Selecting And Determining The Nonlinear Temperature Compensation Tc Nlin4
Conductivity ProLab 4000 10.2.10 Selecting and determining the nonlinear temperature compensation TC nLin4 Preparatory activities The nonlinear temperature compensation TC nLin4 is determined from several standards of unknown concentration. You prepare the required standards yourself through equidistant dilu- tion of the standard with the highest concentration e.g.:...
Page 155 ProLab 4000 Conductivity Enter the start temperature, end temperature and temperature interval. Enter the number of standards and confirm with [Continue]. The display shows:  the current conductivity value  the current temperature  information on the nominal temperature of the next measur-...
Page 156 Conductivity ProLab 4000 Slowly warm or cool the test sample (standard 1) until the end temperature End temp. is achieved. Each time the nominal temperature for a measuring point is reached a dataset is stored. At the end of the series of measurements for the solution (stan- dard 1), the corresponding measuring record is displayed.
Page 157 ProLab 4000 Conductivity 10.3 Determining the cell constant (calibration in control standard) Why determine the cell Due to aging, the cell constant slightly changes. As a result, an inexact constant? measured value is displayed. Calibration determines and stores the current value of the cell constant.
Page 158 Conductivity ProLab 4000 Sample record: Print date 26.04.07 16:13 ProLab 4000 (06249876) Current user: 1234567890 CALIBRATION Cond Calibration date 20.04.07 10:14:03 LF413-ID (A062498765) User: Administrator Calibration interval: 150 days Standard: 0,01 mol/l KCl Cond./Tref 25: 1413 µS/cm Cal. temp: 25,4 °C Cell constant: 0.475 1/cm...
Page 159: Determining The Cell Constant (Calibration)
ProLab 4000 Conductivity 10.3.1 Determining the cell constant (calibration) Proceed as follows to determine the cell constant: Connect a conductivity measuring cell to the meter. Select the channel of the measuring cell in the measured value display. If necessary, select the parameter, conductivity with <MODE>.
Page 160: Calibration Settings And Calibration Data
Conductivity ProLab 4000 10.3.2 Calibration settings and calibration data In the Calibration menu you can set the calibration interval and view the calibration data. Menu item Setting Description Calibration – Calibration interval... 1 ... 999 Calibration interval for the measuring cell (in days).
Page 161: Memory
ProLab 4000 Memory Memory With the ProLab 4000 software you can store and recall all important measurement and configuration data. Each data type has an individual storage format.  Measurement datasets of the manual memory "*.mst" (see page 162)  Measurement datasets of the automatic memory "*.ast" (see page 164) ...
Page 162: Creating And Selecting A File For Manually Stored Measurement Datasets
Memory ProLab 4000 11.1.1 Creating and selecting a file for manually stored measurement datasets Creating a file for You can create the file in which to store your manually stored measure- manually stored ment datasets. measurement datasets Files for manually stored measurement datasets have the file exten- sion, "*.mst".
Page 163: Storing Measurement Datasets Manually
ProLab 4000 Memory 11.1.2 Storing measurement datasets manually Measurement datasets are stored in a file selected before (see page 162). Allocating an Identification (ID) to the data record makes it easier to find it again. Using <STO>, display the current measurement dataset.
Page 164: Automatically Storing Measurement Datasets
Memory ProLab 4000 11.1.3 Automatically storing measurement datasets The file in which measurement datasets should be automatically stored is selected by yourself. You can create a new file o4r select an existing file to be overwritten. Files for automatically stored measurement datasets have the file extension, "*.ast".
Page 165 ProLab 4000 Memory Note The progress of the automatic memory is indicated by a progress bar. The Automatic memory window can be minimized with the mouse in order to see the measured value display. Wait for the automatic storing to be finished.
Page 166: Datasets
Memory ProLab 4000 11.1.4 Displaying and filtering stored measurement datasets Open the currently selected manual memory with <RCL>. Open the menu, Memory / Manual memory or Automatic mem- ory / Display..The Open file dialog box pops up. Select a file and confirm with [OK].
Page 167: Erasing Measurement Datasets
ProLab 4000 Memory Activate the selected filter criteria with [OK]. The [Filter] option field is marked. The filter criteria are active. Enter or select a number in the selection field for the dataset number. The selected dataset within the list of (filtered) measurement datasets is displayed.
Page 168: Calibration Data
Memory ProLab 4000 11.2 Calibration data The current calibration record is automatically stored after each valid calibration procedure. 11.2.1 Displaying stored calibration data The current calibration record for a meter and a sensor can be found in Displaying the current the menu, Calibration / Calibration record..
Page 169: Managing The Calibration Data
Calibration / Calibration history... and Memory / Calibration memory). The current calibration record of ID sensors is stored in the sensor, of non ID sensors it is stored in the ProLab 4000. The meter creates a separate calibration history for each ID sensor cal- ibrated with the ProLab 4000.
Page 170: Recorder Data
Memory ProLab 4000 11.3 Recorder data Information on the recording, storing, displaying and deleting of mea- sured value curves is given on page 171 ff. Files containing recorder data have the file extension "*.rdt". 11.4 Configuration data Information on the recording, storing, displaying and deleting of config- uration files is given on page 190 ff.
Page 171: Recorder
ProLab 4000 Recorder Recorder The recorder represents measured values graphically in a system of coordinates. The recorder can record a running measurement (online recorder) or the developing of a stored measurement (offline recorder). The following editing functions are available for the recorder: ...
Page 172: Recording The Measured Value Curve
Recorder ProLab 4000 12.1 Recording the measured value curve The recorder records the course of the measured values curve and the course of the temperature curve. Starting the recorder Highlight a channel in the measured value display,e.g. pH. Open the Measuring / Recorder... menu.
Page 173: Recording The Curve Of The Measured Temperature Value
ProLab 4000 Recorder 12.2 Recording the curve of the measured temperature value If the recorder was started without recording the temperature value, you can switch on the recording of the temperature value. The current setting for the recording of the temperature value is retained until the next start of the recorder.
Page 174: Storing Recorder Data
Recorder ProLab 4000 12.3 Storing recorder data The recorder records the course of the measured values curve and the course of the temperature curve. You can store the previous course of the measured value recording in a file at any time.
Page 175: Displaying Stored Recorder Data
ProLab 4000 Recorder 12.4 Displaying stored recorder data Opening the offline Open the menu, Memory / Recorder / Display..recorder The Open file dialog box pops up. Select a file with recorder data and confirm with [OK]. The Offline recorder window pops up and displays the selected recorder data.
Page 176: Settings For The Recorder
Recorder ProLab 4000 12.5 Settings for the recorder In the Recorder settings dialog box, the appearance of your recorder is defined. The following settings can be done while the recording is run- ning or after opening a completed recording.  Colors for the recorder window (register, General) –...
Page 177: Defining The Recording Interval
ProLab 4000 Recorder 12.5.1 Defining the recording interval The Recording interval defines at which intervals the measured values are recorded. Open the recorder menu, Settings...Settings..The Recorder settings window pops up. Select the Time register for the entry of the recording interval.
Page 178 Recorder ProLab 4000 Open the recorder menu, Settings...Settings..The Recorder settings window pops up. Select the Measured value register for the scaling of the measured value axis. Make the settings for the axes. If necessary, define limit values (see page 179).
Page 179: Defining And Activating Limit Values
ProLab 4000 Recorder 12.5.3 Defining and activating limit values With the limit values you define the measured values at which the curve of the measurement developing is displayed gray if the measured are below or above the limits. Thus measured values below or above the limits can easily be recog- nized.
Page 180: Defining The Colors For The Recorder Representation
Recorder ProLab 4000 12.5.4 Defining the colors for the recorder representation The appearance of the recorder is determined with the following colors:  Background color  Text color for axes legend  Color of the measured value curve  Color of temperature value curve Open the recorder menu, Settings...Settings..
Page 181: Changing The Displayed Axis Intercept
ProLab 4000 Recorder Use [OK] to accept the new settings and close the dialog box, Recorder settings. The new settings are active. Select another register to make further settings. 12.6 Changing the displayed axis intercept The standard settings for the displayed axis intercepts are defined in...
Page 182 Recorder ProLab 4000 Click on an arrow at the beginning or end of an axis with the mouse (time axis or measured value/temperature axis). The displayed axis intercept is displaced in the direction of the arrow. Zooming an axis The axis intercepts of the recorder can be zoomed as follows (time axis intercept and measured value/temperature axis).
Page 183: Displaying Exact Measurement Data At A Point (Cursor)
ProLab 4000 Recorder 12.7 Displaying exact measurement data at a point (cursor) In the recorder window, you can display the exact measurement data numerically at a point of the measuring curve. Open the menu item, DisplayCursor. A cursor is displayed.
Page 184 Recorder ProLab 4000 ba75646e03 12/2012...
Page 185: Transmitting Data
ProLab 4000 Transmitting data Transmitting data 13.1 Printing current measurement data To which interface the measurement data should be output with <PRINT> is specified in the menu, System / Data output... (see page 60). Output the current measurement data to the interface with <PRINT>.
Page 186: Usb-B Interface (Usb Device)
Transmitting data ProLab 4000 Note If the burette control is active, data output to the RS232 interface (printer) is blocked. Note Pin assignment of the socket: See page 203. 13.2.2 USB-B interface (USB Device) Connect the interface to the PC via the supplied Z875 USB cable.
Page 187: Usb-A Interface (Usb Host)
ProLab 4000 Transmitting data 13.2.3 USB-A interface (USB Host) Connect the USB-A interface (USB Host) of the ProLab 4000 to the printer. Connect the USB printer to the USB Host interface. 13.2.4 Options for data transmission Data can be transmitted to a PC or external printer via the interfaces, RS232, USB-B (USB Device) and USB-A (USB Host).
Page 188: Data Backup
To back up important data against being lost or to relocate big files from the instrument, the administrator can plug an external USB medium to the ProLab 4000 in order to save data on it. Connect a USB memory device to the USB-A USB Host inter- face.
Page 189: Viewing Backed Up Data
ProLab 4000 Transmitting data 13.3.2 Viewing backed up data The external USB medium is displayed within the directory of each user. Thus the data can be read at any time after connecting the USB medium. Example: Viewing backed up measurement data Connect a USB memory device to the USB-A USB Host inter- face.
Page 190: Configurations
Configurations ProLab 4000 Configurations As the administrator, you can create and assign a configuration to each user (see page 52). The settings for each measured parameter are defined in a configuration file. If a configuration file is assigned to a user, the measurement setting for the user are fixed and the user rights limited.
Page 191: Viewing A Configuration
ProLab 4000 Configurations 14.1 Viewing a configuration A configuration viewer is available so the current configuration settings can be viewed. It gives an overview of the current measurement set- tings. Open the menu, File / View configuration..The Configuration window appears.
Page 192: Creating A New Configuration
Configurations ProLab 4000 14.2 Creating a new configuration When creating a configuration, the current settings of the meter for each measured parameter are taken over in the Configuration window first. Then the settings can be adjusted and stored as an extra configu- ration file.
Page 193: Loading A Configuration
ProLab 4000 Configurations 14.3 Loading a configuration All users who can create a configuration can also load it. When loading a configuration, all settings stored in the configuration file can be loaded. Open the File menu with Select configuration..The Open file dialog box pops up.
Page 194: Deleting A Configuration
Configurations ProLab 4000 14.4 Deleting a configuration All users who can create a configuration can also delete it in their direc- tory. Open the File menu with Delete configuration..The Delete file dialog box pops up. Select the file to be deleted and confirm with [OK].
Page 195: Maintenance, Cleaning, Disposal
ProLab 4000 Maintenance, cleaning, disposal Maintenance, cleaning, disposal 15.1 Maintenance The only maintenance activity required is replacing the batteries. Note For maintenance of the measuring cells and electrodes refer to the rel- evant operating manuals. Replacing the batteries If the meter stays connected to the power supply while the batteries are being replaced, or if they are replaced within approx.
Page 196: Cleaning
Maintenance, cleaning, disposal ProLab 4000 Using a screw driver, tighten the screws (2) of the lid of the bat- tery compartment. Switch the meter on with <On/Off>. Note If the date and time are lost, the setting of the date and time is dis- played automatically after switching on.
Page 197: Ph And Orp Measurement
ProLab 4000 What to do if... What to do if... 16.1 pH and ORP measurement Error message Err1 Cause Remedy pH electrode: – Measured value outside the – Use a suitable electrode measuring range – Air bubble in front of the dia- –...
Page 198 What to do if... ProLab 4000 Cause Remedy – Electrode broken – Replace the electrode Buffer solutions: – Incorrect buffer solutions – Select the suitable buffer set for the buffers used – Replace the buffer solutions – Buffer solutions too old –...
Page 199: Ion Selective Measurement
ProLab 4000 What to do if... Cause Remedy – Measurement procedure not – Follow special procedure suitable CalClock on red Cause Remedy background – Calibration interval expired – Recalibrate the measuring system 16.2 Ion selective measurement Error message Err1 Cause Remedy –...
Page 200: Conductivity Measurement
What to do if... ProLab 4000 Warning [TempErr] Cause Remedy – Temperature difference – Adjust the temperature of between measurement and cali- the test sample bration greater than 2 K. Warning [ISEErr] Cause Remedy – Electrode voltage outside cali- – Recalibrate...
Page 201: General Errors
ProLab 4000 What to do if... CalClock Cause Remedy with red frame – Calibration interval expired – Recalibrate the measuring system Cond temp? Cause Remedy – Test sample does not have the – Adjust the temperature of the ± correct temperature (max.
Page 202 What to do if... ProLab 4000 ba75646e03 12/2012...
Page 203: Technical Data
ProLab 4000 Technical Data Technical Data 17.1 General data Dimensions approx. 240 x 280 x 70 mm Weight approx. 2.5 kg (without power pack) Mechanical structure Type of protection IP 54 Electrical safety Protective class Test certificates cETLus, CE Ambient Storage - 25 °C ...
Page 204 Technical Data ProLab 4000 RS232 serial interface Connection of the PC cable (Z390) or printer cable (Z393) Baud rate adjustable: 1200, 2400, 4800, 9600, 19200 Baud Type RS232, data download Data bits Stop bits Parity None Handshake RTS/CTS Cable length Max.
Page 205 ProLab 4000 Technical Data Instrument safety EC guideline 2006/95/EC EN 61010-1 class A ANSI/UL 61010-1 CAN/CSA-C22.2 No. 61010-1 Radio data transmis- EC guideline 1999/5/EC sion EN 300 330-2 EN 50364 EN 60950-1 Climatic class VDI/VDE 3540 IP protection class EN 60529...
Page 206: Measuring Ranges, Resolution, Accuracy
Technical Data ProLab 4000 17.2 Measuring ranges, resolution, accuracy 17.2.1 Temperature Measuring ranges, Variable Measuring range Resolution resolution T [°C] - 35.0 ... + 150.0 Accuracy (± 1 digit) Variable Accuracy Temperature of the test sample T [°C] ± 0.1 - 35.0 ...
Page 207: Conductivity
ProLab 4000 Technical Data 17.2.3 ISE Measuring ranges, Variable Measuring range Resolution resolution 1.0 E-40 ... 9.9 E-4 1 E-39 ... 1 E-5 [mg/l, %, ppm, 0.001 ... 9.999 0.001 mg/kg, µmol/l] 10.00 ... 99.99 0.01 100.0 ... 999.9 1000 ... 999999 1.0 E6 ...
Page 208 Technical Data ProLab 4000 Cell constants Cell constant C Values Can be calibrated in 0.450 ... 0.500 cm the ranges 0.585 ... 0.715 0.800 ... 1.200 cm Adjustable 0.010 cm (fixed) 0.090 ... 0.110 cm 0.250 ... 25.000 cm Reference temperature...
Page 209: Lists
ProLab 4000 Lists Lists This chapter provides additional information and orientation aids. Abbreviations The list of abbreviations explains the indicators and abbreviations that appear on the display and in the manual. Status display indica- tors Specialist terms The glossary briefly explains the meaning of the specialist terms. How- ever, terms that should already be familiar to the target group are not described here.
Page 210 Lists ProLab 4000 Abbreviations Conductivity value (international γ) °C Temperature unit, degrees Celsius °F Temperature unit, degrees Fahrenheit Cell constant [cm ] (internat. k) D.O. Dissolved oxygen Linear temperature compensation LoBat Batteries almost empty (Low battery) Voltage unit mV/pH Unit of the electrode slope (internat. mV)
Page 211 ProLab 4000 Lists Status display indicators [SC] Measured value (Hold) or Measurement with stability control [ARng] Automatic range selection (AutoRange) [TP] Temperature sensor is being used CondTP when measuring pH using multiparameter meters on- Integrated temperature sensor of a conductivity mea-...
Page 212 Lists ProLab 4000 Glossary Adjusting To manipulate a measuring system so that the relevant value (e. g. the displayed value) differs as little as possible from the correct value or a value that is regarded as correct, or that the difference remains within the tolerance.
Page 213 ProLab 4000 Lists Molality Molality is the quantity (in Mol) of a dissolved substance in 1000 g solvent. Offset potential The measurable potential of a symmetrical electrode, the membrane of which is immersed in a solution with the pH of the nominal elec- trode zero point.
Page 214 Lists ProLab 4000 Temperature compensation Name of a function that considers the temperature influence on the measurement and converts it accordingly. Depending on the mea- sured parameter to be determined, the temperature compensation functions in different ways. For conductimetric measurements, the measured value is converted to a defined reference temperature.
Page 215 ProLab 4000 Lists Trademarks used Trademark Owner of the trademark Merck Merck KGaA SCHOTT Schott Glas AG Mettler Toledo Mettler Toledo Fisher Fisher Scientific Company Fluka Fluka AG Radiometer Radiometer Baker Mallinckrodt Baker, Inc. Metrohm Metrohm AG Beckman Beckman Instruments, Inc.
Page 216 Lists ProLab 4000 ba75646e03 12/2012...
Page 217 ProLab 4000 Lists Index ......103 ISE standard solutions .........21 Authorized use ..........15 Jack field ......195 Battery compartment .......134 Blank value addition ..........97 Burettes .......... 12 Key functions ............12 Keys Calibration ..........103 ............. 209 Lists ........157 Conductivity .............74 Calibration evaluation ......
Page 218 Index ProLab 4000 ....185 Transmitting measured values Two-point calibration ........171, 185 Recorder ..........108 ............. 65 Reset ........81, 83, 85 ......186, 187 RS232 interface ..... 204 RS232 socket assignment ..74, 157 Zero point of the pH electrode ........
Page 219: Appendix
General information With the "Update_ProLab3000_4000" program and a PC you can update the firmware of the ProLab 4000 to the newest version. Available firmware updates can be found on the Internet. Connect the meter to a PC for the update.
Page 220 Appendix ProLab 4000 Connect the ProLab 4000 to a USB interface (virtual COM port) of the PC with the aid of the USB interface cable. Connect the ProLab 4000 to a serial interface (COM port) of the PC with the aid of the Z390 interface cable.
Page 221: A.20 Menus
ProLab 4000 Appendix A.20 Menus A.20.1 Main menu File File – New configuration... – Select configuration... – View configuration... – Delete configuration... – Terminate Memory Memory – Manual memory – New... – Select... – Display... – Delete... – Automatic memory –...
Page 222 Appendix ProLab 4000 System System – Data output... – Baud – Output format (ASCII, CSV) – – Header – Autom. printout... – Reset – Measuring – Autom. stability control – Temperature unit – Connect Ref1/Ref2 – Signal On – Country and language...
Page 223: A.20.2 Ph Sensor Menu
ProLab 4000 Appendix A.20.2 pH sensor menu Measuring Measuring – pH resolution – High – Medium – Low – Alternative TP – Setting of man. temp... – Reset pH – Recorder... – Calibration Calibration – pH calibration type – AutoCal –...
Page 224: A.20.3 U Sensor Menu
Appendix ProLab 4000 A.20.3 U sensor menu Measuring Measuring – High resolution – Alternative TP – Setting of man. temp... – Determine reference... – Recorder... A.20.4 dU sensor menu Measuring Measuring – High resolution – Alternative TP – Setting of man. temp...
Page 225: A.20.5 Ise Sensor Menu
ProLab 4000 Appendix A.20.5 ISE sensor menu Measuring Measuring – ISE settings – Units – Ion type – Blank value correction – Reference measurement – Input reference value... – Burettes settings... – Stability control – High – Medium – Low –...
Page 226: A.20.6 Cond Sensor Menu
Appendix ProLab 4000 A.20.6 Cond sensor menu Measuring Measuring – Cell constant – Calibrated cell constant – Adjustable cell constant... – Adjustable LF 313T... – LF 213T – Temperature coefficient – TC nLF – TC Lin... – TC off – TC nLin1..TC nLin4...
Page 228 SI Analytics GmbH Postfach 2443 D-55014 Mainz Hattenbergstr. 10 D-55122 Mainz Telefon +49 (0) 61 31/66 5111 Telefax +49 (0) 61 31/66 5001 Email: support@ si-analytics.com Internet: www.si-analytics.com...

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