wtw pHotoFlex Operating Manual
  1. Manuals
  2. Brands
  3. wtw Manuals
  4. Measuring Instruments
  5. pHotoFlex
  6. Operating manual

wtw pHotoFlex Operating Manual

Handheld photometer
Hide thumbs Also See for pHotoFlex:
Table of Contents

Advertisement

Quick Links

Operating manual
pHotoFlex /
pHotoFlex Turb
Handheld photometer
ba75491e05
04/2009

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the pHotoFlex and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for wtw pHotoFlex

Summary of Contents for wtw pHotoFlex

  • Page 1 Operating manual pHotoFlex / pHotoFlex Turb Handheld photometer ba75491e05 04/2009...
  • Page 2 Part of the process of consequently improving our products is the Method data continuous further development of the range of photometric tests Analysis specifications supplied and the meter firmware. All current data for the pHotoFlex / Operating manual pHotoFlex Turb can be found on the Internet under http:// www.WTW.com.

  • Page 3: Table Of Contents

    Contents pHotoFlex / pHotoFlex Turb - Contents Overview ........7 General features .
  • Page 4 Contents pHotoFlex / pHotoFlex Turb 4.5.10 Measuring diluted samples ....50 pH value / ORP voltage ......51 4.6.1...
  • Page 5 Accessories, options ......97 WTW accessories ......97 8.1.1...

  • Page 6: Ba75491E05

    Contents pHotoFlex / pHotoFlex Turb ba75491e05 04/2009...

  • Page 7: Overview

    – Concentration measurements – Absorbance measurements – Transmission measurements pH measurements Turbidity measurements (pHotoFlex Turb). The pHotoFlex (Turb) handheld meter provides the maximum degree of operating comfort, reliability and measuring certainty for all applica- tions. ® The proven MultiCal calibration procedure supports you when cali- brating for pH measurements and the AutoRead function enables pre- cise pH measurements.

  • Page 8: Keypad

    If you need further information or application notes, you can obtain the following material from WTW: Application reports Primers Safety datasheets. You will find information on available literature in the WTW catalog or via the Internet. Keypad Key functions Select the measuring mode <M>...
  • Page 9 / pHotoFlex Turb Overview In the Photometry measuring mode: Select a pro- gram for concentration measurement <PROG> Open menus / confirm entries / start measurement <START/ENTER> Call up the Configuration menu (all settings are made here) <MENU> In the Photometry measuring mode, measured...

  • Page 10: Display

    Overview pHotoFlex / pHotoFlex Turb Display The graphic display shows all information of the current measurement in the measured value display. The illumination enables to read the dis- play even in the darkness. Example Measuring mode \ measured Photometry \ Concentration parameter 1.29...

  • Page 11: Labstation (Optional)

    Laboratory operation with the LabStation enables the following addi- tional functions: With photometric measurements, the zero measurement is retained even after switching the pHotoFlex (Turb) off and on again You can connect a barcode reader for the simplified calling up of programs...
  • Page 12 Overview pHotoFlex / pHotoFlex Turb ba75491e05 04/2009...

  • Page 13: Safety

    / pHotoFlex Turb 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 carefully before working with the meter. The operating manual must always be available within the vicinity of the meter.

  • Page 14: Authorized Use

    Concentration measurement Absorbance and transmission measurement Measurement of pH value and ORP Turbidity measurement (pHotoFlex Turb only). The technical specifications as given in chapter 7 T must ECHNICAL DATA be observed. Only the operation and running of the meter according to the instructions given in this operating manual is authorized.
  • Page 15 / pHotoFlex Turb Safety The smooth functioning and operational safety of the meter can only be guaranteed under the environmental conditions that are specified in chapter 7 T ECHNICAL DATA If the instrument was transported from a cold environment to a warm environment, the formation of condensate can lead to the faulty func- tioning of the instrument.
  • Page 16 Safety pHotoFlex / pHotoFlex Turb ba75491e05 04/2009...

  • Page 17: Commissioning

    / pHotoFlex Turb Commissioning Commissioning Scope of delivery Handheld photometer, pHotoFlex Turb or pHotoFlex 4 batteries, 1.5 V type AA (in the battery compartment) Optional: Accumulator pack and power pack with Euro plug and exchange plugs for USA, UK, and Australia...
  • Page 18 Commissioning pHotoFlex / pHotoFlex Turb Note The accumulator pack should not be completely discharged. If you do not operate the instrument for a longer period of time you should charge the accumulator pack every six months. Automatic switchoff The meter has an automatic switch-off function in order to save the bat- teries or accumulator pack (see section 4.4).

  • Page 19: Connecting The Labstation

    Note The LabStation is available as an accessory (see section 8.1). In order to use the functions of the LabStation for operation in the lab- oratory, connect the LabStation and place the pHotoFlex (Turb) in the LabStation. Connecting the LabSta-...
  • Page 20 / pHotoFlex Turb Connect the power pack to an easily accessible power socket. Place the pHotoFlex (Turb) in the LabStation. LabStation Connect a pH electrode to the socket on the pHotoFlex (Turb) through the cut-out (6) as necessary. ba75491e05 04/2009...

  • Page 21: Initial Commissioning

    – line power operation and charging the accumulator pack: connect the power pack (see section 3.2) – operation with LabStation: connect the LabStation and place the pHotoFlex (Turb) in the LabStation (see section 3.3) Switch on the meter (see section 4.1) Set the language as necessary (see section 4.3.3) Set the date and time as necessary (see section 4.3.4)
  • Page 22 Commissioning pHotoFlex / pHotoFlex Turb ba75491e05 04/2009...

  • Page 23: Operation

    / pHotoFlex Turb Operation Operation Switching on the meter Switching on Press the <ON/OFF> key. For 30 seconds, Start menu appears with a selection of the measuring modes. The measuring mode last selected is highlighted. The status line indicates the meter designation and the version number of the software.

  • Page 24: Inserting A Cell

    30 seconds. The illumination is switched on again with the next key- stroke. Inserting a cell To be able to insert cells in the pHotoFlex (Turb), the cell shaft has to be prepared to take in a cell. Push the dust cover (1) upward.
  • Page 25 / pHotoFlex Turb Operation Inserting a 16 mm cell Put the fold-out cell shaft (2) in an upright position until it locks into place. Pull up the height adapter (3). The cell shaft is extended. Open the external light cover (4) of the cell shaft.
  • Page 26 Operation pHotoFlex / pHotoFlex Turb Insert the 16 mm cell (marking points forward) so that it is po- sitioned on the bottom of the cell shaft. Close the external light cover (4). The cell is ready to be measured. Note For optimum measurement results, the cell must always be covered by the external light cover.

  • Page 27: General Operating Principles

    An overview of the operating elements and the display is given in display section 1.2 and section 1.3. Operating modes, An overview of the operating modes of the pHotoFlex (Turb) and the navigation navigation through menus and functions can be found in section 4.3.1 and section 4.3.2.
  • Page 28 Operation pHotoFlex / pHotoFlex Turb Menus and dialogs The menus for settings and dialogs in courses contain further sub- menus. The selection is made with the < > < > keys. The current selection is displayed in reverse video. Menus The name of the menu is displayed at the upper edge of the frame.

  • Page 29: Navigation Example 1: Setting The Language

    The following example describes in the language of the country how to set the language. On delivery, English is set as the language in the pHotoFlex (Turb). During initial commissioning, the language is set in the menu, Configuration / System / Language.

  • Page 30: Navigation Example 2: Setting The Date And Time

    Operation pHotoFlex / pHotoFlex Turb Select the Language menu with < > < >. The current selection is displayed in reverse video. Open the setting of the Language with <START/ENTER>. System Deutsch Language Store Display Reset Interface Continue ... Select the required language with < > < >.
  • Page 31 / pHotoFlex Turb Operation Note After a fall of the supply voltage (empty batteries or accumulator pack), the date and time are reset to 01.01.2003, 00:00 hours. Setting the date, time The data format can be switched from the display of day, month, year and date format (dd.mm.yy) to the display of month, day, year (mm/dd/yy or mm.dd.yy).
  • Page 32 Operation pHotoFlex / pHotoFlex Turb Confirm the setting with <START/ENTER>. The time is set. Set the current Date as necessary. The setting is made similar- ly to that of the time. Change the date format as necessary. To make further settings, switch to the next higher menu level with <ESC>.

  • Page 33: Menu Overview

    / pHotoFlex Turb Operation 4.3.5 Menu overview Photometry Measured parameter Concentration % Transmission Absorbance Programs Dilution Analysis timer Reset i No settings Turbidity required. pH & ORP Measured parameter Calibration Calibration re- cord Cal. type NIST/DIN Calibration inter- 1 ... 999 d...
  • Page 34 Operation pHotoFlex / pHotoFlex Turb System Language Deutsch English Français Español Measured value Display memory RS232 download Data filter Filter PROG Date Delete i 4 of 1000 occupied i Filter: No filter Display Illumination Auto off Contrast 0 ... 100 % Brightness 0 ...

  • Page 35: System Settings (System Menu)

    / pHotoFlex Turb Operation System settings (System menu) The following instrument features and general functions can be found in the Configuration / System menu: Language selection (Language) Memory and database functions (Store) Display settings (Display) Restore basic settings (Reset)

  • Page 36: Measured Value Memory

    Operation pHotoFlex / pHotoFlex Turb Menu item Setting Description Continue ... / 10, 20, 30, 40, The automatic switchoff Switchoff time 50 min, switches the meter off if 1, 2, 3, 4, 5, 10, no entry is made for a...
  • Page 37 / pHotoFlex Turb Operation Settings/functions Menu item Setting/func- Description tion Display Displays in pages all mea- surement datasets that cor- respond to the filter settings. Further options: Scroll through the data- sets with < > < >. Output the displayed dataset to the interface with <PRT>.

  • Page 38: Display

    Operation pHotoFlex / pHotoFlex Turb 4.4.2 Display In the Configuration / System / Display menu, you set the display fea- tures: Switching on/off the display illumination (Illumination) Display contrast (Contrast) The settings can be found in the Configuration / System / Display menu.

  • Page 39: Date/Time

    / pHotoFlex Turb Operation 4.4.4 Date/time In the Configuration / System / Continue ... / Date/time menu, you set the system clock: Current time (Time) Current date (Date) Format of the date display (Date format) The settings can be found in the Configuration / System / Continue ...

  • Page 40: Photometry

    You can look up an overview of the available methods in the photome- try analysis manual and display it on the screen of the pHotoFlex (Turb) (see section 4.5.7). You can measure the following parameters with the pHotoFlex (Turb):...

  • Page 41: Settings For Photometric Measurements

    Clean the cells before filling them with sample and also before measuring as necessary (see section 5.2.2). The cells must be absolutely clean and free of scratches. For measurement, place the pHotoFlex (Turb) on a horizontal surface. 4.5.2 Settings for photometric measurements...

  • Page 42: Measuring The Concentration

    Press the <M> key (short pressure) repeatedly until the mea- sured variable, Konzentration is selected. First concentration measure- Second and all further ment with the pHotoFlex (Turb) concentration measurements Photometry \ Concentration Photometry \ Concentration i Select program i Select program with <PROG>...

  • Page 43: Blank Value (Reagent Blank Value)

    / pHotoFlex Turb Operation Photometry \ Concentration i Insert sample i Start measurement with <START> 1: A5/25 MC NH4-N 16 mm 0.20 - 6.51 mg/l 01.02.05 15:12 Insert the cell (see section 4.2). Start the measurement with <START/ENTER>. Measurement is started. The result is displayed.
  • Page 44 Operation pHotoFlex / pHotoFlex Turb Measuring the blank Press the <M> key (long pressure) repeatedly until the Pho- value tometry measuring mode is selected. Press the <M> key (short pressure) repeatedly until the mea- sured variable, Concentration is selected. Select a program with <PROG> as necessary.

  • Page 45: Measuring The Absorbance/Transmission

    / pHotoFlex Turb Operation Measure blank value i 2: A5/25 MC i Cell = 16 mm i Absorbance = 0.301 i Blank value mea- surement successful! Confirm the result with <START/ENTER>. The blank value measurement is completed. The meter is ready to measure.

  • Page 46: Zero Adjustment

    Operation pHotoFlex / pHotoFlex Turb Photometry \ Absorbance i Insert sample i Start measurement with <START> 16 mm 610 nm 01.02.05 15:12 Clean the cell (see section 5.2.2). Insert the cell (see section 4.2). Start the measurement with <START/ENTER>. The measurement result is displayed when the measurement is finished.
  • Page 47 / pHotoFlex Turb Operation Photometry \ Adjustment Zero adjust. Measure blank value Delete blank value Using < > < > and <START/ENTER>, select and start the Zero adjust. function. The menu-guided zero adjustment starts. Follow the instructions on the display.

  • Page 48: Programs

    Updating programs Under http://www.WTW.com on the Internet, you can always find the latest software version with the newest programs and method data for your pHotoFlex (Turb) (see A...

  • Page 49: Analysis Timer

    / pHotoFlex Turb Operation 4.5.8 Analysis timer Measuring according to analysis specifications often means there are waiting periods between the individual steps. These waiting periods (time intervals) are stored in the instrument with the program data for each program. The active Analysis timer function automatically reminds you to observe these time intervals by means of the menu guidance.

  • Page 50: Measuring Diluted Samples

    Operation pHotoFlex / pHotoFlex Turb 4.5.10 Measuring diluted samples If the concentration of a test sample exceeds the measuring range of a method, you can dilute the sample by a factor 1 ... 99 so that the con- centration of the diluted test sample is within the measuring range of the method (see photometry analysis manual).

  • Page 51: Ph Value / Orp Voltage

    / pHotoFlex Turb Operation pH value / ORP voltage 4.6.1 General information You can measure the following variables: pH value [ ] ORP [mV] CAUTION When connecting an earthed PC/printer, measurements cannot be performed in earthed media as incorrect values would result. The RS232 interface is not galvanically isolated.

  • Page 52: Measuring The Ph Value

    Operation pHotoFlex / pHotoFlex Turb 4.6.2 Measuring the pH value Perform the preparatory activities according to section 4.6.1. Immerse the pH electrode in the test sample. pH & ORP \ pH 6.94 25.0 °C [AR] 01.02.05 15:12 Press the <M> key (short pressure) repeatedly until the mea- sured variable, pH is selected.

  • Page 53: Measuring The Orp Voltage

    / pHotoFlex Turb Operation 4.6.3 Measuring the ORP voltage Note ORP electrodes are not calibrated. However, you can check ORP elec- trodes using a test solution. Perform the preparatory activities according to section 4.6.1. Submerse the ORP electrode in the sample.
  • Page 54 Operation pHotoFlex / pHotoFlex Turb Settings/functions The settings can be found in the Configuration / pH & ORP menu. To switch to the Configuration menu, press the <MENU> key. Menu item Possible Description setting Measured parameter pH & ORP Calibration /...

  • Page 55: Calibration

    / pHotoFlex Turb Operation 4.6.5 Calibration Why calibrate? pH electrodes age. This changes the asymmetry (zero point) and slope of the pH electrode. As a result, an inexact measured value is dis- played. Calibration determines the current values of the asymmetry and slope of the electrode and stores them in the meter.
  • Page 56 Operation pHotoFlex / pHotoFlex Turb Calibration points Calibration can be performed using one, two or three buffer solutions in any order (single-point-, two-point or three-point calibration). The meter determines the following values and calculates the calibration line as follows: Determined val-...
  • Page 57 / pHotoFlex Turb Operation Sample printout of a 31.10.03 16:13 record pHotoFlex Ser. no. 12345678 Calibration pH & ORP Calibration date 31.10.03 16:13:33 Calibration interval AutoCal TEC Buffer 1 4.01 Buffer 2 7.00 Buffer 3 10.01 Voltage 1 184.0 mV 24.0 °C...

  • Page 58: Carrying Out The Tec And Nist/Din Calibration

    (see section 4.6.5). Make sure the Cal. type is correctly set in the pH & ORP / Calibration menu (see section 4.6.4). For this procedure, use any one, two or three WTW technical buffer so- lutions in ascending or descending order.
  • Page 59 / pHotoFlex Turb Operation If the Set temperature menu item appears, measure and enter the temperature of the buffer manually (measurement without temperature sensor). Using < > < >, select Continue and press <START/EN- TER>. The buffer is measured.
  • Page 60 Operation pHotoFlex / pHotoFlex Turb Continuing for two-point Thoroughly rinse the electrode with distilled water. calibration (Cal. type TEC) Immerse the electrode in buffer solution 2. If the Set temperature menu item appears, measure and enter the temperature of the buffer manually (measurement without temperature sensor).
  • Page 61 / pHotoFlex Turb Operation Continuing for three- Thoroughly rinse the electrode with distilled water. point calibration (Cal. type TEC) Immerse the electrode in buffer solution 3. If necessary, measure the temperature of buffer 3 manually, then enter and confirm it with < > < > and <START/ENTER>...

  • Page 62: Turbidity

    Operation pHotoFlex / pHotoFlex Turb Turbidity 4.7.1 General information Venting the sample Air bubbles in the sample affect the measuring result to a massive ex- tent because they have a large scattering effect on the incident light. Larger air bubbles cause sudden changes in the measured values whereas smaller air bubbles are recorded by the instrument as turbidi- ty.

  • Page 63: Measuring Turbidity

    Never pour any liquids directly into the cell shaft. Always use a cell for measurement. The meter only measures precisely if the cell is closed with the black light protection cap (WTW cells). Note The outside of the cell always has to be clean, dry, and free of finger- prints and scratches.
  • Page 64 Operation pHotoFlex / pHotoFlex Turb Measuring Press the <M> key (long pressure) repeatedly until the Turbid- ity measuring mode is selected. Rinse out a clean cell with the sample to be measured: Pour approximately 10 ml sample into the cell. Close the cell and rotate it several times before throwing the sample away.
  • Page 65 / pHotoFlex Turb Operation Repeat the steps 2 to 8 for further samples. ba75491e05 04/2009...

  • Page 66: Calibration

    Operation pHotoFlex / pHotoFlex Turb Display if the If the measured value is outside the measuring range of the measuring range is pHotoFlex Turb, it is indicated on the display: exceeded Turbidity > 1100 01.02.05 15:12 4.7.4 Calibration When to calibrate?
  • Page 67 / pHotoFlex Turb Operation Carrying out calibration Press the <M> key (long pressure) repeatedly until the Turbid- ity measuring mode is selected. Press the <CAL/ZERO> key. The menu-guided calibration begins. Follow the instructions on the display. Turbidity \ Calibration...
  • Page 68 Operation pHotoFlex / pHotoFlex Turb Note Before measuring the third calibration standard of 0.02 NTU/FNU you can exit the calibration with <ESC> at any time. The new calibration data is discarded. The old calibration data is further used. Repeat the steps 4 - 6 with the calibration standards, 10.0 NTU/ FNU and 0.02 NTU/FNU.

  • Page 69: Storing

    / pHotoFlex Turb Operation Storing The meter has 1000 storage locations for measurement datsets. You can transmit measured values (datasets) to the data storage with the <STO> key. Each storage process transmits the current dataset to the interface at the same time.

  • Page 70: Storing Measurement Datsets

    Operation pHotoFlex / pHotoFlex Turb 4.8.1 Storing measurement datsets Proceed as follows to transmit to the data storage and simultaneously output to the interface a measurement dataset: Press the <STO> key. The Store display appears. Store 996 free i 02.02.2005 11:24:16 0.00 mg/l PO4-P BV...

  • Page 71: Filtering Measurement Datsets

    / pHotoFlex Turb Operation 4.8.2 Filtering measurement datsets The functions to display and download stored measurement datsets (see section 4.4.1) refer to all stored measurement datsets that corre- spond to the adjusted filter criteria. The settings can be found in the Configuration / System / Measured val- ue memory /Data filter menu.

  • Page 72: Displaying Measurement Datsets

    Operation pHotoFlex / pHotoFlex Turb 4.8.3 Displaying measurement datsets You can read out stored datasets on the display. Only those datasets are displayed that correspond to the selected filter criteria (see section 4.8.2). Start reading out the data on the display in the menu, Configuration / System / Measured value memory / Display.

  • Page 73: Erasing Stored Measurement Datasets

    / pHotoFlex Turb Operation 4.8.5 Erasing stored measurement datasets You can erase the stored measurement datsets altogether if you do no longer need them. Erasing all measurement datsets is done in the menu, Configuration / System / Measured value memory / Delete.

  • Page 74: Configuring The Rs232 Interface

    4.9.2 Configuring the RS232 interface For an error-free data transmission, the RS232 interface should be set to the same transmission speed (Baud rate) on the pHotoFlex (Turb) and PC/printer. You can set the following values for the baud rate on the pHotoFlex (Turb) : 1200, 2400, 4800, 9600, 19200.
  • Page 75 / pHotoFlex Turb Operation Output format, CSV 3 4 5 15.01.05;15:06:49;1;8;O2;[BW];[9 + 1];6.5;mmol/l;VALID; 15.01.05;15:09:52;0;;;[AR];;7.00;<pH>;VALID;25;°C;VALID 11 12 13 Data Description Date Date of storing Time Time of storing adjusted ID Program number only for the measured parameter, Concentration Citation form...

  • Page 76: Transmitting Data

    Operation pHotoFlex / pHotoFlex Turb Data Description Unit of 11 °C / °F Measured value VALID, INVALID, UFL, OFL status of 11 4.9.4 Transmitting data The following table shows which data are transmitted to the interface in which way: Data...

  • Page 77: Reset

    / pHotoFlex Turb Operation 4.10 Reset You can reset (initialize) all system and measurement settings. Note For turbidity measurement, there are no resettable settings. 4.10.1 Resetting the system settings With the System / Reset function, all resettable settings are reset.

  • Page 78: Resetting The Photometer Settings

    Operation pHotoFlex / pHotoFlex Turb 4.10.2 Resetting the photometer settings With the Photometry / Reset function, all photometer settings are reset. Setting Default settings PROG Cell size 16 mm Measured parameter Konzentration Wavelength 436 nm Blank values all erased 4.10.3 Resetting the pH settings...

  • Page 79: Meter Information

    / pHotoFlex Turb Operation 4.11 Meter information The following meter information is listed in the Configuration / Info menu: Model designation Software version Version number(s) of the stored program data Series number of the meter Info i Model: pHotoFlex i Software: V 0.35...

  • Page 80: Administrating User-Defined Methods

    To store user-defined programs (methods) in the meter, determine a calibration line for your method yourself and transmit the data of this calibration line to the pHotoFlex (Turb). Administration of the method data can be carried out in the LSdata soft- ware (see operating manual LSdata) or with the aid of a terminal pro- gram (section 4.13.1).

  • Page 81: Administrating User-Defined Programs With A

    The pHotoFlex (Turb) can administrate the database of user-defined programs via command lines. With the aid of the AK 540/B interface cable, connect the pHotoFlex (Turb) 540 to the serial interface (COM port) of the PC (see section 8.1.1). Make sure the pHotoFlex (Turb) is switched on.
  • Page 82 Enter the command line. Finish the command line with Enter. The data is transmitted to the pHotoFlex (Turb). Note If a program is already stored under the selected number, the program- ming procedure is canceled. To store the program under the selected number, first erase the program stored under the number.
  • Page 83 U.511#1,900 Enter the command line. Finish the command line with Enter. The data is transmitted to the pHotoFlex (Turb). The requested data is displayed on the terminal as the result. After successful transmission, the terminal program writes "!>". If the transmission failed, the terminal program writes "!>".
  • Page 84 Operation pHotoFlex / pHotoFlex Turb ba75491e05 04/2009...

  • Page 85: Maintenance, Cleaning, Disposal

    / pHotoFlex Turb Maintenance, cleaning, disposal Maintenance, cleaning, disposal Maintenance The meter is almost maintenance-free. The only maintenance task is replacing the batteries or accumulator pack. 5.1.1 Inserting/exchanging the batteries CAUTION Make sure that the poles of the batteries are the right way round.

  • Page 86: Retrofitting The Accumulator Pack

    Maintenance, cleaning, disposal pHotoFlex / pHotoFlex Turb 5.1.2 Retrofitting the accumulator pack CAUTION Use original WTW accumulator packs only. Together with the power pack the accumulator pack is available as an accessory (see section 8.1). Open the battery compartment: – Unscrew the two screws (1) on the underside of the meter, –...

  • Page 87: Cleaning

    If neces- sary, take corresponding protective measures (protective goggles, protective gloves etc.). Switch the pHotoFlex (Turb) off and pull out the power plug. Rinse the cell shaft with distilled water. 5.2.2 Cleaning the cells Cells have to be clean, dry, and free of fingerprints.

  • Page 88: Disposal

    Maintenance, cleaning, disposal pHotoFlex / pHotoFlex Turb Disposal Packing This meter is sent out in a protective transport packing. We recommend: Keep the packing material. The original packing pro- tects the meter from transport damages. Batteries/accumulator Remove the batteries or accumulator pack from the meter (see pack section 5.1).

  • Page 89: What To Do If

    – Operating condition undefined and <PRT> key or EMC load unallowed simultaneously. Error message, Cause Remedy Error – Instrument error – Repeat measurement 0, 8, 16, 16384 – Meter defective, send meter to WTW for repair and quote the error number ba75491e05 04/2009...

  • Page 90: Photometry

    What to do if... pHotoFlex / pHotoFlex Turb Photometry Measuring range Cause Remedy undercut or exceeded – Program not suitable – Select program with suitable measuring range – Dilute the sample Obviously incorrect Cause Remedy measured values – Measurement disturbed by –...
  • Page 91 / pHotoFlex Turb What to do if... Measured value display Cause Remedy ---- Electrode: (calibration error) – Diaphragm contaminated – Clean diaphragm – Membrane contaminated – Clean membrane – Moisture in the plug – Dry plug – Not enough electrolyte –...

  • Page 92: Turbidity

    What to do if... pHotoFlex / pHotoFlex Turb Obviously incorrect Cause Remedy measured values pH electrode: – Not connected – Connect electrode – Cable broken – Replace cable or electrode – pH electrode unsuitable – Use suitable electrode – Temperature difference –...

  • Page 93: Technical Data

    / pHotoFlex Turb Technical data Technical data General data 7.1.1 pHotoFlex (Turb) Dimensions approx. 236 x 86 x 117 mm Weight approx. 0.6 kg (without batteries) Mechanical structure Type of protection IP 67 Electrical safety Protective class Test certificates...
  • Page 94 Technical data pHotoFlex / pHotoFlex Turb Serial Connection of the cable AK 540/B or AK 540/S interface Baud rate adjustable: 1200, 2400, 4800, 9600, 19200 Baud Type RS232 Data bits Stop bits Parity None Handshake RTS/CTS Cable length max. 15 m...

  • Page 95: Labstation

    / pHotoFlex Turb Technical data 7.1.2 LabStation Dimensions approx. 236 x 82 x 170 mm Weight approx. 0.6 kg Photometry Optical measuring prin- LED photometer with filter ciple Interference filter 436 nm, 517 nm, 557 nm, 594 nm, 610 nm, 690 nm Accuracy: ±...

  • Page 96: Ph Value / Orp Voltage

    Technical data pHotoFlex / pHotoFlex Turb pH value / ORP voltage Measuring ranges, Variable Measuring range Resolution resolution - 2.00 ... + 16.00 0.01 U [mV] - 1000 ... + 1000 T [°C] - 5.0 ... + 100.0 T [°F] - 23.0 ...

  • Page 97: Accessories, Options

    RK 14/25 250 621 a connection cable is required to connect the printer (see section 8.1.1) 8.1.1 Connection cable: You can connect a PC to the pHotoFlex (Turb) in one of the following ways: Description Model Order Connection PC - pHotoFlex (Turb) –...
  • Page 98 Accessories, options pHotoFlex / pHotoFlex Turb You can connect the P3001 to the pHotoFlex (Turb) in the following Thermoprinter ways: Description Model Order Connection P3001 - pHotoFlex (Turb) – Cable AK 540/S 902 843 Connection P3001 - LabStation – Cable...

  • Page 99: Optional Extensions Of The Photoflex (Turb)

    / pHotoFlex Turb Accessories, options Optional extensions of the pHotoFlex (Turb) The following optional extensions are available in specialist shops: Device/cable Model Barcode reader Handscanner Datalogic DLC6065-M1 Handscanner Datalogic Touch65 Connection cable Datalogic CAB-350 Barcode reader - LabStation In addition to the barcode reader, a suitable connection cable is...
  • Page 100 Accessories, options pHotoFlex / pHotoFlex Turb ba75491e05 04/2009...

  • Page 101: Lists

    / pHotoFlex Turb Lists Lists This chapter provides additional information and orientation aids. Abbreviations The list of abbreviations explains the indicators and the abbreviations that appear on the display and in the manual. 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 102 NIST or DIN 19 266 pH value Second Slope (internat. k) SELV Safety Extra Low Voltage Slp. Slope determined with calibration Automatic pH calibration with WTW technical buf- fer solutions according to DIN 19267 Voltage ba75491e05 04/2009...
  • Page 103 (WTW electrodes: pH = 7). AutoRange Name of the automatic selection of the measuring range. AutoRead WTW name for a function to check the stability of the measured value. Blank value (reagent The evaluation of the photometric measurement always refers to the blank value) comparison value of a sample without the substance to be determined (reagent blank value).
  • Page 104 The ex- pression, junction, is also used for ground or junction-less transitions. Light Emitting Diode LEDs are used as the light source in the pHotoFlex (Turb). Measured parameter The measured parameter is the physical dimension determined by measuring, e.
  • Page 105 / pHotoFlex Turb Lists Program In the pHotoFlex (Turb), methods with the relevant method data are stored as programs. Programs are called up via the assigned program number. Reset Restoring the original condition of all settings of a measuring system.
  • Page 106 Lists pHotoFlex / pHotoFlex Turb ba75491e05 04/2009...

  • Page 107: Index

    / pHotoFlex Turb Index Index ......77, 78 system settings Diluted samples Accumulator pack ......... 50 measuring ........17 charging time ..........10, 38 Display ............62 ......10, 24 Display illumination .......62 Aligning and marking a cell Drift control .......40 Analysis specification ..........
  • Page 108 Index pHotoFlex / pHotoFlex Turb ......57 ......48 pH calibration evaluation User-defined programs ...... 40 Photometric determinations ..........17 Power pack ............76 Print ........46 Zero adjustment ..........40 Program ..........48 Programs ............. 77 Reset ....... 74 RS232 socket assignment ........

  • Page 109: Appendix 1: Firmware Update

    Appendix 1: Firmware update General information With the "Firmware Update pHotoFlex" program you can update the firmware of the pHotoFlex (Turb) to the latest version with the aid of a Personal Computer. The update program contains: the newest firmware (meter software) new or changed method data and programs.

  • Page 110: Appendix 2: Turbidity Values Under 1 Fnu/Ntu

    / pHotoFlex Turb Appendix 2: Turbidity values under 1 FNU/ With turbidity values (under 1 FNU/NTU), the measured value is strongly influenced by the cell and its alignment. In order to increase measuring accuracy with turbidity values under 1 FNU/NTU, calibration in the 0.02 FNU/NTU standard and later...
  • Page 111 Wissenschaftlich-Technische Werkstätten GmbH Dr.-Karl-Slevogt-Straße 1 D-82362 Weilheim Germany Tel: +49 (0) 881 183-0 +49 (0) 881 183-100 Fax: +49 (0) 881 183-420 E-Mail: Info@WTW.com Internet: http://www.WTW.com...

This manual is also suitable for:

Photoflex turb

Table of Contents