Xylem WTW pHotoFlex Turb Operating Manual
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Xylem WTW pHotoFlex Turb Operating Manual

Led filter photometer with integrated turbidity measurement and ph function
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OPERATING MANUAL
ba75976e07 09/2021
®
pHotoFlex
Turb
LED FILTER PHOTOMETER WITH INTEGRATED TURBIDITY MEASUREMENT AND pH
FUNCTION

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Summary of Contents for Xylem WTW pHotoFlex Turb

  • Page 1 OPERATING MANUAL ba75976e07 09/2021 ® pHotoFlex Turb LED FILTER PHOTOMETER WITH INTEGRATED TURBIDITY MEASUREMENT AND pH FUNCTION...
  • Page 2 ® pHotoFlex Turb © Xylem Analytics Germany GmbH Copyright 2021 Printed in Germany. ba75976e07 09/2021...

  • Page 3: Table Of Contents

    ® pHotoFlex Turb Contents ® pHotoFlex Turb - Contents Overview ........6 General features .
  • Page 4 ® Contents pHotoFlex Turb 4.5.2 Settings for photometric measurements ..33 4.5.3 Measuring the concentration ....33 4.5.4 Blank value (reagent blank value) ... 36 4.5.5 Standard adjustment (user calibration) .
  • Page 5 ® pHotoFlex Turb Contents 4.11 Meter information ......73 4.12 Software update ....... 73 4.13 Administrating user-defined methods .

  • Page 6: Overview

    ® Overview pHotoFlex Turb Overview General features ® The compact pHotoFlex Turb handheld precision meter enables you to car- ry out the following measurements quickly and reliably:  Photometric measurements – Concentration measurements (colorimetric measurements) – Absorbance measurements – Transmission measurements ...

  • Page 7: Keypad

    ® pHotoFlex Turb Overview If you need further information or application notes, you can ob- tain the following material from WTW:  Application reports  Primers  Safety datasheets. You will find information on available literature in the WTW cata- log or on the Internet.
  • Page 8 ® Overview pHotoFlex Turb In the Photometry measuring mode: Select a program 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 param- eter, Concentration Switch over between available citation forms <FORM>...

  • Page 9: Display

    ® pHotoFlex Turb Overview Display The graphic display shows all information of the current measurement in the measured value display. The illumination enables to read the display even in the dark. Example Measuring mode \ measured pa- Photometry \ Concentration rameter 1.29 Measured value (with unit)

  • Page 10: Labstation (Optional)

    ® Overview pHotoFlex Turb LabStation (optional) The LabStation, which is available as an accessory, enables you to use the ® pHotoFlex Turb conveniently in the laboratory (see LabStation operating manual). Laboratory operation with the LabStation enables the following additional functions: ...

  • Page 11: Safety

    ® pHotoFlex Turb Safety Safety Safety information 2.1.1 Safety information in the operating manual This operating manual provides important information on the safe operation of the meter. Read this operating manual thoroughly and make yourself fa- miliar with the meter before putting it into operation or working with it. The op- erating manual must be kept in the vicinity of the meter so you can always find the information you need.

  • Page 12: Safe Operation

    ® Safety pHotoFlex Turb Safe operation CAUTION Danger of eye damage by visible and invisible LED radiation. ® In the cell shaft of the pHotoFlex Turb there are light emit- ting diodes (LEDs) of the 1M class. Do not look at the radiation using optical instruments. With normal, authorized use there is no hazard.

  • Page 13: Commissioning

    ® pHotoFlex Turb Commissioning Commissioning Scope of delivery ®  Handheld meter, pHotoFlex Turb  4 batteries 1.5 V type AA (in the battery compartment)  1 empty cell 16 mm  2 empty cells 28 mm with label to mark the cell for turbidity measurements ®...
  • Page 14 ® Commissioning pHotoFlex Turb CAUTION Use original power packs only. The line voltage at the operating site must lie within the input voltage range of the original power pack (see chapter ECHNICAL DATA The battery pack should not be completely discharged. If you do not operate the instrument for a longer period of time you should charge the battery pack every six months.

  • Page 15: Inserting/Exchanging The Batteries

    ® pHotoFlex Turb Commissioning 3.2.2 Inserting/exchanging the batteries NOTE Make sure that the poles of the batteries are positioned correctly. The ± signs on the batteries must correspond to the ± signs in the battery compartment. Open the battery compartment: –...

  • Page 16: Initial Commissioning

    ® Commissioning pHotoFlex Turb Initial commissioning Perform the following activities:  For – Battery operation: Insert the batteries (see section 3.2.2) – Battery pack operation: Insert the battery pack (see section 5.1.2) – Line power operation and charging the battery pack: Connect the power pack (see section 3.2) –...

  • Page 17: Operation

    ® pHotoFlex Turb Operation Operation Switching on the meter Switching on Press the <ON/OFF> key. For 30 seconds, the 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 18: Inserting A Cell

    ® Operation pHotoFlex Turb Display illumina- During operation with batteries or battery pack the meter automatically tion with battery- switches off the display illumination if no key is pressed for 30 seconds. The powered operation illumination is switched on with the next keystroke again. Inserting a cell ®...
  • Page 19 ® pHotoFlex Turb Operation Inserting a 16 mm Put the fold-out cell shaft (2) in an upright position until it locks into cell place. Pull upwards the height adapter (3). The cell shaft is extended. Open the external light cover (4) of the cell shaft. ba75976e07 09/2021...

  • Page 20: General Operating Principles

    ® Operation pHotoFlex Turb Insert the 16 mm cell (marking points to the front) so that it is posi- tioned on the bottom of the cell shaft. Close the external light cover (4). The cell is ready to be measured. For optimum measurement results, the cell must always be cov- ered by the external light cover.

  • Page 21: Navigation

    ® pHotoFlex Turb Operation 4.3.2 Navigation Measured value In the measured value display, you can display  select a measuring mode with <M> (long pressure)  select a measured parameter in the active measuring mode (e. g. pH <− > mV) with <M> (short pressure) ...

  • Page 22: Navigation Example 1: Setting The Language

    ® Operation pHotoFlex Turb pH & ORP Calibr. record AutoCal Calibr. type 007 d Calibr. interval mV/pH Unit for slope :i 2.00 4.01 7.00 10.01  Messages Information or operating instructions are designated by the i symbol. They cannot be selected. Example: pH &...
  • Page 23 ® pHotoFlex Turb Operation In the measured value display: Open the Configuration menu with <MENU>. The instrument is in the configuration mode. Select the System menu with < > < >. The current selection is displayed in reverse video. Using <START/ENTER>, open the System menu. System Language Deutsch...

  • Page 24: Example 2 On Navigation: Setting The Date And Time

    ® Operation pHotoFlex Turb 4.3.4 Example 2 on navigation: Setting the date and time The meter has a clock with a date function. The date and time are indicated in the status line of the measured value display. When storing measured val- ues and calibrating, the current date and time are automatically stored as well.
  • Page 25 ® pHotoFlex Turb Operation Time 14:53:40 Enter the time using the number keys. The digit to be changed is displayed underlined. In the case of wrong entries, you can cancel the procedure with <ESC>. After canceling with <ESC>, it is possible to enter all digits once again.

  • Page 26: Menu Overview

    ® Operation pHotoFlex Turb 4.3.5 Menu overview Photometry Meas. param. Concentration % Transmission Absorbance Programs Dilution Analysis timer Reset i No settings required! Turbidity pH & ORP Meas. param. Calibration Calibr. record Calibr. type NIST/DIN 1 ... 999 d Calibr. interval mV/pH Unit for slope -20 ...
  • Page 27 ® pHotoFlex Turb Operation System Language Deutsch English Français Español Measured value Display memory RS232 download Data filter Filter PROG Datum Delete i 4 of 1000 i occupied i Filter: No filter Display Illumination Auto off 0 ... 100 % Contrast 0 ...

  • Page 28: System Settings (System Menu)

    ® Operation pHotoFlex Turb System settings (System menu) The following meter characteristics and general functions are in the menu Configuration / System:  Language selection (Language)  Memory- and database functions (Store)  Display settings (Display)  Restoring the basic settings (Reset) ...

  • Page 29: Measured Value Memory

    ® pHotoFlex Turb Operation Menu item Setting Explanation Continue ... / 10, 20, 30, 40, The automatic switchoff func- 50 min, tion switches the meter off if no Switchoff time 1, 2, 3, 4, 5, 10, entry is made for a specified pe- 15, 20, 24 h riod of time (Switchoff time).

  • Page 30: Display

    ® Operation pHotoFlex Turb Menu item Setting/ Explanation function Allows to set filter criteria in order to display Data filter section 4.8.2 and download datasets to the interface. Erases the entire contents of the measuring Delete data memory, independent of the filter set- tings.

  • Page 31: Date/Time

    ® pHotoFlex Turb Operation The settings are in the menu, Configuration / System / Interface. Move to the Configuration menu with the <MENU> key. Settings Menu item Setting Explanation 1200, 2400, Baud rate of the data interface Baud rate 4800, 9600, 19200 Output format for data Output format...
  • Page 32 ® Operation pHotoFlex Turb substance to be determined into the form that is suitable for measurement and at the same time exclude disturbing factors. Pretreatment of the sample is described in the analysis specification. In a simple case, pretreatment can be to dissolve a solid substance in water; it can, however, also include chemical conversions, e.

  • Page 33: Settings For Photometric Measurements

    ® pHotoFlex Turb Operation 4.5.2 Settings for photometric measurements For photometric measurements, the following settings are available in the Configuration / Photometry menu:  Setting the measured parameter  Displaying a list of all programs  Setting the dilution factor ...
  • Page 34 ® Operation pHotoFlex Turb 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> with <PROG> ▲ ▼ or with 83: A6/25 MC NH4-N 16 mm 0.20 - 6.51 mg/l...
  • Page 35 ® pHotoFlex Turb Operation Start the measurement with <START/ENTER>. Measurement is started. The result is displayed. Photometry \ Concentration A blank value measured by [BV] the user is used 0.74 mg/l 83: A6/25 MC NH4-N 16 mm 0.20 - 6.51 mg/l 01.02.05 15:12 Display when the Display...

  • Page 36: Blank Value (Reagent Blank Value)

    ® Operation pHotoFlex Turb Photometry \ Concentration [BV] Measurement signal cannot ---- be evaluated < 0.20 mg/l 83: A6/25 MC NH4-N 16 mm 0.20 - 6.51 mg/l 01.02.05 15:12 The orientation value can be very inaccurate and should not be used as a measured value! 4.5.4 Blank value (reagent blank value) A blank value is required for every concentration measurement.
  • Page 37 ® pHotoFlex Turb Operation The following measurement of the blank value applies only to the selected program. If no program is selected, the information i No selected. appears on the display. program Open the adjustment menu with <CAL/ZERO>. Photometry \ Adjustment Zero adjust.

  • Page 38: Standard Adjustment (User Calibration)

    ® Operation pHotoFlex Turb Measure blank value i 83: A6/25 MC Celli = 16 mm iAbsorbance = 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. Discard the result with <ESC>.
  • Page 39 ® pHotoFlex Turb Operation Photometry \ Adjustment Zero adjust. Measure blank value Delete blank value Standard adjustment Open the Standard adjustment menu with < > < > and <START/ ENTER>. If data of a standard adjustment are already available, the data of the last standard adjustment are displayed.

  • Page 40: Absorbance / % Transmission, Measuring

    ® Operation pHotoFlex Turb Measure standard i 304: Cu-1 TP Celli = 10 mm i 0.600 mg/l Cu: 2.000 (93.2%) Accept Confirm the result with <START/ENTER>. The standard adjustment is completed. The meter is ready to measure. Discard the result with <ESC>. Subsequently, carry out a new standard adjustment.

  • Page 41: Zero Adjustment

    ® pHotoFlex Turb Operation Select the cell diameter with < > < > and confirm with <START/ ENTER>. Select the wavelength with < > < > and confirm with <START/EN- TER>. Photometry \ Absorbance i Insert sample i Start measurement with <START>...
  • Page 42 ® Operation pHotoFlex Turb Press the <M> key (long pressure) repeatedly until the Photometry measuring mode is selected. Press the <M> key (short pressure) repeatedly until the measured parameter, Concentration is selected. Press the <CAL/ZERO> key. The menu for adjustment measurements opens up. Photometry \ Adjustment Zero adjust.

  • Page 43: Programs

    ® pHotoFlex Turb Operation If i Calibration error! was displayed as the calibration result, a note automatically reminds you of another zero adjustment be- fore the next measurement. Measuring is not possible without a valid zero adjustment. Confirm the result with <START/ENTER>. The zero adjustment is completed.

  • Page 44: Timer

    ® Operation pHotoFlex Turb program data for each program. The active Analysis timer function automat- ically reminds you to observe these time intervals by means of the menu guidance. If you want to manually enter time intervals, use the Timer function (see section 4.5.10).
  • Page 45 ® pHotoFlex Turb Operation Open the menu Configuration/ Photometry / Dilution. The current factor of the dilution is displayed. Dilution 0 + 1 Water + sample i 83: A6/25 MC Open the display for the entry of numerals with <START/ENTER>. Enter the factor of the dilution with the number keys.

  • Page 46: Ph Value / Orp Voltage

    ® Operation pHotoFlex Turb pH value / ORP voltage 4.6.1 General information You can measure the following parameters:  pH value [ ]  ORP [mV] The RS232 interface is not galvanically isolated. When connecting an earthed PC/printer, measurements cannot be performed in earthed media as incorrect values would result! Temperature mea- For reproducible pH measurements, it is essential to measure the tempera-...

  • Page 47: Measuring The Ph Value

    ® pHotoFlex Turb Operation 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 measured parameter pH is selected.

  • Page 48: Settings For Ph And Orp Measurements

    ® Operation pHotoFlex Turb Press the <M> key (short pressure) repeatedly until the measured parameter, ORP is selected. AutoRead (drift The AutoRead function (drift control) continually checks the stability of the control) measurement signal. The stability has a considerable impact on the repro- ducibility of measured values.

  • Page 49: Calibration

    ® pHotoFlex Turb Operation Menu item Possible Explanation setting Calibration / 1 ... 999 d Calibr. interval for the pH elec- trode (in days). Calibr. interval The meter reminds you to cali- brate regularly by the flashing sensor symbol in the measured value display.
  • Page 50 ® Operation pHotoFlex Turb ture dependence of the pH values is taken into account during calibration. Buffer set Name on the dis- pH values at 25 °C play WTW Technical buffer 2.00 solutions 4.01 7.00 10.01 NIST/DIN buffer solu- 1.679 NIST/DIN tions 4.006...
  • Page 51 ® pHotoFlex Turb Operation Calibration record When finishing a calibration, the new calibration values are displayed as an informative message (symbol ) first. You can then decide whether to take over these values for the new calibration or to go on using the old calibration data.

  • Page 52: Carrying Out The Tec And Nist/Din Calibration

    ® Operation pHotoFlex Turb Display Calibration Asymmetry Slope [mV/pH] record [mV] -30 ... +30 -62 ... -61 -56 ... -50 Clean the electrode according to the electrode operating manual < -30 or ... -62 or ---- ---- > 30 ... -50 Perform error elimination accord- ing to chapter 6 W HAT TO DO IF...
  • Page 53 ® pHotoFlex Turb Operation Start the calibration with <CAL/ZERO>. The calibration display appears. pH & ORP \ Calibration i Buffer recognition TEC i Immerse sensor in buffer 1 Continue Immerse the electrode in buffer solution 1. If the Set temperature menu item appears, measure and enter the temperature of the buffer manually (measurement without tempera- ture sensor).
  • Page 54 ® Operation pHotoFlex Turb Single-point calibration: Using < > < >, select Exit with one point calibr. and confirm with <START/ENTER>. The calibration is completed as a single-point calibration. The new calibration values are displayed as a piece of information You have the following options: ...
  • Page 55 ® pHotoFlex Turb Operation pH & ORP \ Calibration i Buffer recognition TEC i Immerse sensor in buffer 3 Exit with 2 point calibr. Continue For two-point calibration, select with < > < > Exit with 2 point cal- ibr. and confirm with <START/ENTER>. The calibration is completed as a two-point calibration.

  • Page 56: Turbidity

    ® Operation pHotoFlex Turb Wait for the end of the AutoRead measurement or Terminate Auto- Read and accept the calibration value with <START/ENTER>. The new calibration values are displayed as a piece of information You have the following options:  Using <START/ENTER>, take over the new calibration values. Subsequently, the calibration record is displayed and output to the interface at the same time.
  • Page 57 ® pHotoFlex Turb Operation Aligning a cell Press the <M> key (long pressure) repeatedly until the Turbidity measuring mode is selected. Clean the cell (see section 5.2.2). Insert the cell (see section 4.2). Align the cell:  Press and keep the <START/ENTER> key depressed. ...

  • Page 58: Measuring The Turbidity

    ® Operation pHotoFlex Turb 4.7.3 Measuring the turbidity CAUTION Never pour any liquids directly into the cell shaft. Always use a cell for measurement. The meter only measures accurately if the cell is closed with the black light protection cap (WTW cells).

  • Page 59: Calibration

    ® pHotoFlex Turb Operation To keep the drift as low as possible, the time for aligning the cell while the <START/ENTER> key is pressed is limited to 30 sec- onds. After this time, the meter starts the measurement or cali- bration automatically.
  • Page 60 ® Operation pHotoFlex Turb Preparing the cali- Perform the following preparatory activities when you want to calibrate: bration Keep the cells with the required calibration standards ready and mark them as necessary (see page 56). Clean the cell (see section 5.2.2). Insert the cell (see section 4.2).
  • Page 61 ® pHotoFlex Turb Operation Align the cell:  Marked cell: – Align the marking on the cell cap with the marking at the cell shaft. – Press the <START/ENTER> key and keep it depressed until the measured value is displayed. ...

  • Page 62: Memory

    ® Operation pHotoFlex Turb Turbidity i Insert sample i Press and hold <START> i Align sample If i Calibration error! is displayed as the calibration result, the dis- play indicates that a new calibration is required before a mea- surement is taken. If a valid calibration is not possible, the meter also offers to continue measuring with the last valid calibration data.

  • Page 63: Storing Measurement Datasets

    ® pHotoFlex Turb Operation  Measured value (pH/mV) pH & ORP:  Temperature value (°C/°F)  AutoRead info (AR) AR appears with the measured value if the AutoRead criterion was met while storing (stable measured value). Otherwise, the AR display is missing. 4.8.1 Storing measurement datasets Proceed as follows to transmit to the data memory and simultaneously output to the interface a measurement dataset:...

  • Page 64: Filtering Measurement Datasets

    ® Operation pHotoFlex Turb 4.8.2 Filtering measurement datasets The functions to display and download stored measurement datasets (see section 4.4.1) refer to all stored measurement datasets that correspond to the specified filter criteria. The settings are in the menu, Configuration / System / Measured value mem- ory / Data filter.

  • Page 65: Output Measurement Datasets To The Rs232 Interface

    ® pHotoFlex Turb Operation Representation of 02.02.2005 11:24:16 a dataset ID: 1 7.000 (pH) 24.8 °C AR ▲ ▼ i Scroll with Further datasets that correspond to the filter criteria are displayed with the < > < > keys. Quitting the dis- To quit the display of stored measurement datasets, you have the following play options:...

  • Page 66: Transmitting Data

    ® Operation pHotoFlex Turb Transmitting data ® To transfer data from the pHotoFlex Turb to a PC or printer, first establish a connection to a PC or printer (see section 4.9.1). With the PC software LS Data you can, without further configuration, transmit or save measurement and calibration data for GLP-compliant data manage- ment to LS Data or transmit them to Excel and thus to LIMS (see section 4.9.2).

  • Page 67: Data Transmission With The Pc Software Ls Data

    ® pHotoFlex Turb Operation Establishing a ® Connect the pHotoFlex Turb to the PC via the RS232 or connection via the LabStation LS Flex/430 (see operating manual LS Flex/430). The connection to the PC is established. The data can be transferred to the PC: ...

  • Page 68: Establishing The Connection To A Printer

    ® Operation pHotoFlex Turb 4.9.4 Establishing the connection to a printer Via the RS 232 interface, you can transmit data to an external printer. The RS232 interface is not galvanically isolated. When connecting an earthed PC/printer, measurements cannot be performed in earthed media as incorrect values would result. Suitable printers ...

  • Page 69: Configuration For The Data Transmission To A Terminal

    ® pHotoFlex Turb Operation 4.9.5 Configuration for the data transmission to a terminal program Via the RS232 interface you can also transmit data to a PC with the aid of a so-called terminal program. When using the terminal program "HyperTerminal", you can load the transfer data automatically with the *.ht file stored on the CD.

  • Page 70: Transmitting Data To A Printer Or Terminal Program

    ® Operation pHotoFlex Turb 4.9.6 Transmitting data to a printer or terminal program With a printer connected or a connection to a terminal program existing, you can transmit data in the following ways: Data Operation / description Individual data  Display the data and press <PRT>. The data being shown on the display are transmit- (e.g.
  • Page 71 ® pHotoFlex Turb Operation Example, The CSV output format delivers datasets separated by ";". output format CSV The data are output in the following order: 4 5 6 0;01.12.11;14:18:07;1;81;O2;[BV];[2 + 1];166;mg/l;VALID;;; 14;03.12.11;07:41:51;3;;;;;24.8;%;VALID;557;nm;VALID 1 Current number of the storage location (or "0" during output from measured value display) 2 Date of storing 3 Time of storing 4 Selected ID...

  • Page 72: Reset

    ® Operation pHotoFlex Turb 4.10 Reset You can reset (initialize) all system and measurement settings. For turbidity measurements, there are no settings that can be re- set. 4.10.1 Resetting the system settings With the System / Reset function, all resettable settings are reset. ...

  • Page 73: Resetting The Settings For Ph Measurements

    ® pHotoFlex Turb Operation 4.10.3 Resetting the settings for pH measurements The calibration data are reset to the default settings together with the measuring parameters. Recalibrate after performing a reset. The following settings for pH measurements are reset to the default settings with the Reset function: Setting Default settings...

  • Page 74: Administrating User-Defined Methods

    ® Operation pHotoFlex Turb A software update comprises  new instrument software  new programs (methods)  revisions of existing methods The current software version can be found on the Internet at www.WTW.com. The proceeding for updating the software is given in the appendix (see section 11).

  • Page 75: Administrating User-Defined Programs With A

    ® pHotoFlex Turb Operation Data Possible entries/examples Unit (unit) e.g. mg/l (max. 7 characters) 0 or 1 Blank required: (No/Yes) 4.13.1 Administrating user-defined programs with a terminal program Generally, a terminal program serves to establish a connection to a device on a data interface and to communicate with the device via a console on the dis- play.
  • Page 76 ® Operation pHotoFlex Turb The individual data sections of the command line are separated by commas. The dot "." has to be used as a decimal separator within a data section. Enter the command line. Finish the command line with Enter. ®...
  • Page 77 ® pHotoFlex Turb Operation 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 a successful transmission, the terminal program writes "!>". After a failed transmission, the terminal program writes "?>". ba75976e07 09/2021...

  • Page 78: Maintenance, Cleaning, Disposal

    ® Maintenance, cleaning, disposal pHotoFlex Turb Maintenance, cleaning, disposal Maintenance The meter is almost maintenance-free. The only maintenance task is replacing the batteries or battery pack. 5.1.1 Inserting/exchanging the batteries NOTE Make sure that the poles of the batteries are positioned correctly. The ±...

  • Page 79: Retrofitting The Battery Pack

    ® pHotoFlex Turb Maintenance, cleaning, disposal Dispose of used batteries according to the local regulations of your country. End users within the European Union are obligated to return used batteries (even ecologically compatible ones) to a collection point set up for recycling purposes.

  • Page 80: Cleaning

    ® Maintenance, cleaning, disposal pHotoFlex Turb If necessary, take four old batteries out of the battery compartment. Connect the cable of the battery pack with the socket (3) on the bot- tom of the battery compartment and insert the battery pack in the bat- tery compartment.

  • Page 81: Cleaning The Cells

    ® pHotoFlex Turb Maintenance, cleaning, disposal 5.2.2 Cleaning the cells Cells have to be clean, dry, and free of fingerprints. Therefore, clean them regularly: Clean the cells inside and out with hydrochloric acid or laboratory soap. Rinse several times with distilled water. Let them dry in the air.

  • Page 82: What To Do If

    ® What to do if... pHotoFlex Turb What to do if... General errors Display, LoBat Cause Remedy – Batteries or battery pack – Insert new batteries almost empty – Charge the battery pack(see section 3.2) Meter does not Cause Remedy react to keystroke –...

  • Page 83: Photometry

    ® pHotoFlex Turb What to do if... Photometry Measuring range Cause Remedy exceeded or – Program not suitable – Select a program with suitable undershot measuring range – Dilute the sample Obviously incor- Cause Remedy rect measured val- – Measurement disturbed by –...
  • Page 84 ® What to do if... pHotoFlex Turb Measured value Cause Remedy display Electrode: ---- (calibration error) – Junction contaminated – Clean the junction – Membrane contaminated – Clean the membrane – Moisture in the plug – Dry plug – Too little electrolyte –...

  • Page 85: Turbidity

    ® pHotoFlex Turb What to do if... Obviously incor- Cause Remedy rect measured val- pH electrode: – not connected – Connect electrode – Cable broken – Exchange the cable or electrode – pH electrode unsuitable – Use suitable electrode – Temperature difference –...

  • Page 86: Technical Data

    ® Technical data pHotoFlex Turb Technical data General data 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 CE, FCC Ambient Storage - 25 °C ...

  • Page 87: Photometry

    ® pHotoFlex Turb Technical data 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 Guidelines EC guideline 89/336/EEC and norms used...

  • Page 88: Ph Value / Orp Voltage

    ® Technical data 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 ... + 212.0 Manual Variable Range...

  • Page 89: Accessories And Options

    ® pHotoFlex Turb Accessories and options Accessories and options Accessories Description Model Order no. LabStation with PC software LSdata, LS Flex/430 251 301 battery pack and universal power pack Batteries for pHotoFlex RB Flex/430 251 300 3 replacement cells, 28 x 60 mm LKS28-Set 251 302 Calibration set for...
  • Page 90 ® Accessories and options pHotoFlex Turb ® You can connect the P3001 to the pHotoFlex Turb in the following ways: Thermoprinter Description Model Order ®  Connection P3001 - pHotoFlex Turb – Cable AK 540/S 902 843  Connection P3001 - LabStation –...

  • Page 91: Optional Extensions Of The Photoflex

    ® pHotoFlex Turb Accessories and options ® Optional extensions of the pHotoFlex Turb The following optional extensions are available in specialist shops: Device/cable Model  Handscanner Datalogic DLC6065-M1 Bar code reader  Handscanner Datalogic Touch65 Connection cable Datalogic CAB-350 Bar code reader - LabStation In addition to the bar code reader, a suitable connection cable is required to operate the bar code reader ba75976e07...

  • Page 92: Lists

    ® Lists pHotoFlex Turb Lists This chapter provides additional information and orientation aids. Abbreviations The list of abbreviations explains the indicators and the abbreviations that ap- pear on the display and in the manual. Specialist terms The glossary briefly explains the meaning of the specialist terms. However, terms that should already be familiar to the target group are not described here.
  • Page 93 ® pHotoFlex Turb Lists Abbreviations °C Temperature unit, degrees Celsius °F Temperature unit, degrees Fahrenheit Asymmetry Calibration Hour Year Temperature unit, Kelvin LoBat Batteries almost empty (Low battery) Month Voltage unit mV/pH Unit of the electrode slope (internat. mV) NIST/DIN Automatic calibration for pH measurements with buffer solutions, produced according to NIST or DIN 19 266 pH value...
  • Page 94 ® Lists pHotoFlex Turb 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 95 ® pHotoFlex Turb Lists Junction The junction is a porous body in the housing wall of reference elec- trodes or electrolyte bridges. It arranges the electrical contact between two solutions and makes the electrolyte exchange more difficult. The expression, junction, is also used for ground or junction-less transi- tions.
  • Page 96 ® Lists pHotoFlex Turb ® 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. Resolution Smallest difference between two measured values that can be dis- played by a meter.

  • Page 97: Index

    ® pHotoFlex Turb Index Index ............ 47 ..40 Absorbance / % Transmission, measuring ............56 .......56 Aligning and marking a cell ............64 Filter .......31 Analysis specification ........99 Firmware update ..........43 Analysis timer ....49 Asymmetry of the pH electrode ....14, 17 Automatic switch-off function .......
  • Page 98 ® Index pHotoFlex Turb ..........43 Programs Rechargeable battery ........13 Charging time ............. 72 Reset ....... 68 RS232 socket assignment ............ 11 Safety ........13 Scope of delivery Single-point calibration ............ 54 Slope ............ 49 ........62 Storing in memory ...........

  • Page 99: Firmware Update

    ® pHotoFlex Turb Firmware update Firmware update ® General informa- With the aid of a PC, you can update the firmware of the pHotoFlex Turb to tion the latest version. You can find available firmware update files for your meter on the Internet. The update program contains: ...
  • Page 100 ® Firmware update pHotoFlex Turb Disconnect the meter from the PC. The meter is ready for operation. After switching the meter off and on you can check whether the meter has taken over the new software version on the start display. ba75976e07 09/2021...

  • Page 101: Appendix

    ® pHotoFlex Turb Appendix: Turbidity values under 1 FNU/NTU Appendix: Turbidity values under 1 FNU/NTU With turbidity values under 1 FNU/NTU, the measured value is strongly influ- enced by the cell and its alignment. To increase measurement accuracy with turbidity values under 1 FNU/NTU, calibration in the 0.02 FNU/NTU standard and later measurement should take place in the same cell.
  • Page 102 ® Appendix: Turbidity values under 1 FNU/NTU pHotoFlex Turb ba75976e07 09/2021...
  • Page 103 ® pHotoFlex Turb ba75976e07 09/2021...
  • Page 104 Xylem also provides a leading portfolio of smart metering, network technologies and advanced analytics solutions for water, electric and gas utilities. In more than 150 countries, we have strong, long-standing relationships with customers who know us for our powerful combination of leading product brands and applications expertise with a strong focus on developing comprehensive, sustainable solutions.

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