Operating manual pHotoFlex / pHotoFlex Turb Handheld photometer ba75491d04 07/2006
Accuracy when going to press Firmware Method data Analysis specifications Operating manual The use of advanced technology and the high quality standard of our instruments are the result of continuous development. This may result in differences between this operating manual and your instrument. Also, we cannot guarantee that there are absolutely no errors in this manual. Therefore, we are sure you will understand that we cannot accept any legal claims resulting from the data, figures or descriptions.
pHotoFlex / pHotoFlex Turb Contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.1 1.2 1.3 1.4 1.5 2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.1 2.2 3 4.4 4.5 4.6 07/2006 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connecting the LabStation . . . . . . . . . . . . . . . . . . . . . . .
Contents pHotoFlex / pHotoFlex Turb 4.6.5 4.6.6 4.7 4.8 4.9 4.10 4.11 4.12 4.13 5 5.2 5.3 4 58 62 62 62 63 65 68 69 70 71 71 72 72 72 73 73 75 76 76 77 77 78 78 79 80 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.1 Inserting/exchanging the batteries . . . . . . . . . . . 5.1.2 Retrofitting the accumulator pack . . . . . . . . . . . Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2.1 Cleaning the cell shaft . . . . . . .
pHotoFlex / pHotoFlex Turb Contents 7.1 7.2 7.3 7.4 8 91 91 93 93 94 94 Accessories, options . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 8.1 8.2 9 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.1.1 pHotoFlex (Turb) . . . . . . . . . . . . . . . . . . . . . . . . 7.1.2 LabStation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Photometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pH value / ORP voltage . . . . . . . .
Contents 6 pHotoFlex / pHotoFlex Turb ba75491d04 07/2006
pHotoFlex / pHotoFlex Turb Overview 1 Overview 1.1 General features The compact pHotoFlex (Turb) handheld precision photometer enables you to carry out the following measurements quickly and reliably: ! Photometric measurements – Concentration measurements – Absorbance measurements – Transmission measurements ! pH measurements ! Turbidity measurements (pHotoFlex Turb).
Overview pHotoFlex / pHotoFlex Turb Note 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. 1.2 Keypad .
pHotoFlex / pHotoFlex Turb Overview In the Photometry measuring mode: Select a program for concentration measurement .
Overview pHotoFlex / pHotoFlex Turb 1.3 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 darkness. Example Measuring mode \ measured parameter Photometry \ Concentration 1.29 mg/l NH4-N 2: A5/25 MC 16 mm 01.02.05 15:12 1.4 10 Program and citation form Diameter of the cell and measuring range Status line with date and time 0.20 - 8.
pHotoFlex / pHotoFlex Turb Overview 1.5 LabStation (optional) With the LabStation, which is available as an accessory, you can conveniently use the pHotoFlex (Turb) in the laboratory.
Overview 12 pHotoFlex / pHotoFlex Turb ba75491d04 07/2006
pHotoFlex / pHotoFlex Turb Safety 2 Safety This operating manual contains basic instructions that you must follow during the commissioning, operation and maintenance of the meter. Consequently, all responsible personnel must read this operating manual carefully before working with the meter. The operating manual must always be available within the vicinity of the meter. Target group The meter was developed for work in the field and in the laboratory.
Safety pHotoFlex / pHotoFlex Turb 2.1 Authorized use This meter is authorized exclusively for carrying out the following measurements in the field and laboratory: ! Analysis of substances in water and aqueous solutions using round cells ! 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 TECHNICAL DATA must be observed.
pHotoFlex / 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 TECHNICAL DATA. If the instrument was transported from a cold environment to a warm environment, the formation of condensate can lead to the faulty functioning of the instrument. In this event, wait until the temperature of the instrument reaches room temperature before putting the instrument back into operation.
Safety 16 pHotoFlex / pHotoFlex Turb ba75491d04 07/2006
pHotoFlex / pHotoFlex Turb Commissioning 3 Commissioning 3.1 Scope of delivery ! Handheld photometer, pHotoFlex Turb or pHotoFlex ! 4 batteries, 1.
Commissioning pHotoFlex / pHotoFlex Turb Use original power packs only (see chapter 7 TECHNICAL DATA). 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 batteries or accumulator pack (see section 4.4).
pHotoFlex / pHotoFlex Turb Commissioning 3.3 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 laboratory, connect the LabStation and place the pHotoFlex (Turb) in the LabStation. Connecting the LabStation (optional) 6 5 4 3 2 1 1 If necessary, replace the Euro plug (1) on the power pack (2) by the country-specific plug suitable for your country.
Commissioning pHotoFlex / pHotoFlex Turb 4 Connect the power pack to an easily accessible power socket. 5 Place the pHotoFlex (Turb) in the LabStation. LabStation 6 20 Connect a pH electrode to the socket on the pHotoFlex (Turb) through the cut-out (6) as necessary.
pHotoFlex / pHotoFlex Turb Commissioning 3.4 Initial commissioning Perform the following activities: ! For – accumulator operation: insert the accumulator pack (see section 5.1.2) – 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.
Commissioning 22 pHotoFlex / pHotoFlex Turb ba75491d04 07/2006
pHotoFlex / pHotoFlex Turb Switching on Operation 4 Operation 4.1 Switching on the meter Press the 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. Start Photometry Turbidity pH & ORP i pHotoFlex V 0.24 After a few seconds, the meter automatically switches to the measuring mode and measured parameter used last.
Operation Display illumination with battery and accumulator pack operation pHotoFlex / pHotoFlex Turb During operation with batteries or accumulator pack the meter automatically switches off the display illumination if no key is pressed for 30 seconds. The illumination is switched on again with the next keystroke. 4.2 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. 1 Push the dust cover (1) upward.
pHotoFlex / pHotoFlex Turb Operation Inserting a 16 mm cell 1 Put the fold-out cell shaft (2) in an upright position until it locks into place. 2 2 Pull up the height adapter (3). The cell shaft is extended. 3 3 Open the external light cover (4) of the cell shaft.
Operation pHotoFlex / pHotoFlex Turb 4 Insert the 16 mm cell (marking points forward) so that it is positioned on the bottom of the cell shaft. 5 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. Otherwise, external light can falsify the measurement result.
pHotoFlex / pHotoFlex Turb Operation 4.3 General operating principles This section contains basic information on the operation of the pHotoFlex (Turb). Operating elements, display Operating modes, navigation An overview of the operating elements and the display is given in section 1.2 and section 1.3. An overview of the operating modes of the pHotoFlex (Turb) and the navigation through menus and functions can be found in section 4.3.1 and section 4.3.2. 4.3.
Operation Menus and dialogs pHotoFlex / pHotoFlex Turb The menus for settings and dialogs in courses contain further submenus. 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. Menus are opened by confirming with . Example: Configuration Photometry Turbidity pH & ORP System Info ! Settings Settings are indicated by a colon.
pHotoFlex / pHotoFlex Turb Operation Example: pH & ORP i Buffer recognition TEC i Immerse sensor in buffer 1 Set temperature: Continue 25 °C The i symbol indicates info texts, e.g. messages, notes or instructions Note The principles of navigation are explained in the two following sections by reference of examples: ! Setting the language (section 4.3.3) ! Setting the date and time (section 4.3.4).
Operation pHotoFlex / pHotoFlex Turb 4.3.3 Navigation example 1: Setting the language Note 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. 1 In the measured value display: Open the Configuration menu with
pHotoFlex / pHotoFlex Turb Operation 8 4.3.4 To make further settings, switch to the next higher menu level with . or Switch to the measured value display with (short pressure). The instrument is in the measurement mode. Navigation example 2: 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.
Operation pHotoFlex / pHotoFlex Turb 3 Select and confirm the Time menu with <▲> <▼> and . A display for the entry of numerals with the number keys opens up. Time 14:53:40 4 Enter the time using the number keys. The digit to be changed is displayed underlined. Note In the case of wrong entries, you can cancel the procedure with . After canceling with , it is possible to enter all digits once again. The new digits are only taken over by confirming with .
pHotoFlex / pHotoFlex Turb Operation 4.3.5 Photometry Menu overview Measured parameter Concentration % Transmission Absorbance Programs Dilution Analysis timer On Off Reset Turbidity i No settings pH & ORP Measured parameter pH ORP Calibration Calibration record required. Cal. type TEC NIST/DIN Calibration interval 1 ... 999 d Unit for slope mV/pH % Man. temperature -20 ...
Operation System pHotoFlex / pHotoFlex Turb Language Deutsch English Français Español Measured value memory Display RS232 download Data filter Filter ID PROG Date Delete i 4 of 1000 occupied i Filter: No filter Display Illumination Auto off On Off Contrast 0 ... 100 % Brightness 0 ... 100 % Baud rate 1200, 2400, 4800, 9600, 19200 Output format ASCII CSV Time hh:mm:ss Reset Interface Continue ... / Date/time Date Date format Continue ...
pHotoFlex / pHotoFlex Turb Operation 4.
Operation pHotoFlex / pHotoFlex Turb Menu item Setting Description Continue ... / Switchoff time 10, 20, 30, 40, 50 min, 1, 2, 3, 4, 5, 10, 15, 20, 24 h The automatic switchoff switches the meter off if no entry is made for a specified period of time (Switchoff time). This saves the batteries or accumulator pack. Continue ... / Beep On Off Switch on/off the beep on keystroke 4.4.
pHotoFlex / pHotoFlex Turb Operation Menu item Setting/function Description RS232 download - Downloads to the interface all measurement datasets that correspond to the filter settings. The download is ordered according to the date and time. The process can take several minutes. To terminate the process prematurely, press . Data filter see section 4.8.2 Allows to set filter criteria in order to display and download datasets to the interface.
Operation pHotoFlex / pHotoFlex Turb 4.4.2 Display In the Configuration / System / Display menu, you set the display features: ! Switching on/off the display illumination (Illumination) ! Display contrast (Contrast) The settings can be found in the Configuration / System / Display menu. To switch to the Configuration menu, press the
pHotoFlex / 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 ... Date/time menu. To switch to the Configuration menu, press the
Operation pHotoFlex / pHotoFlex Turb 4.5 Photometry 4.5.1 General information Photometric measurements serve to determine chemical substances in liquid samples. For this determination, the substance to be determined has to be present in a form that is suitable for photometric measurement. At the same time, possible disturbing factors have to be excluded.
pHotoFlex / pHotoFlex Turb Preparatory activities Operation Perform the following preparatory activities when you want to measure: 1 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. 2 For measurement, place the pHotoFlex (Turb) on a horizontal surface. 4.5.
Operation pHotoFlex / pHotoFlex Turb 4.5.3 Measuring the concentration 1 Press the key (long pressure) repeatedly until the Photometry measuring mode is selected. 2 Press the key (short pressure) repeatedly until the measured variable, Konzentration is selected.
pHotoFlex / pHotoFlex Turb Operation Photometry \ Concentration i Insert sample i Start measurement with 1: A5/25 MC 16 mm NH4-N 0.20 - 6.51 mg/l 01.02.05 15:12 4 Insert the cell (see section 4.2). 5 Start the measurement with . Measurement is started. The result is displayed. Photometry \ Concentration [BV] 0.74 1: A5/25 MC 16 mm 4.5.4 A blank value measured by the user is used mg/l NH4-N 0.20 - 6.51 mg/l 01.02.
Operation Measuring the blank value pHotoFlex / pHotoFlex Turb 1 Press the key (long pressure) repeatedly until the Photometry measuring mode is selected. 2 Press the key (short pressure) repeatedly until the measured variable, Concentration is selected. 3 Select a program with as necessary. Note The following measurement of the blank value applies only to the selected program. If no program is selected, the message i No program selected. appears on the display.
pHotoFlex / pHotoFlex Turb Operation Measure blank value i 2: A5/25 MC i Cell = 16 mm i Absorbance = 0.301 i Blank value measurement successful! 8 4.5.5 Confirm the result with . The blank value measurement is completed. The meter is ready to measure. or: Discard the result with . Subsequently, carry out a new blank value measurement.
Operation pHotoFlex / pHotoFlex Turb Photometry \ Absorbance i Insert sample i Start measurement with 16 mm 610 nm 01.02.05 15:12 5 Clean the cell (see section 5.2.2). 6 Insert the cell (see section 4.2). 7 Start the measurement with . The measurement result is displayed when the measurement is finished. Photometry \ Absorbance 0.532 16 mm 4.5.6 610 nm 01.02.05 15:12 Zero adjustment The zero adjustment, i. e.
pHotoFlex / pHotoFlex Turb Operation Photometry \ Adjustment Zero adjust. Measure blank value Delete blank value 4 Using <▲> <▼> and , select and start the Zero adjust. function. The menu-guided zero adjustment starts. Follow the instructions on the display. Zero adjust. i Insert zero cell (dist. water) Cell Start measurement 16 mm 5 Insert the cell (see section 4.2) 6 Set another cell with <▲> <▼> and as necessary.
Operation pHotoFlex / pHotoFlex Turb 4.5.7 Displaying program data Programs You can view the most important data of all methods. The method data is ordered according to the program number. 1 Open the Configuration / Photometry / Programs menu. The display shows the most important data of the selected program. Programs 1: A5/25 MC 0.20 - 8.
pHotoFlex / 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. If you want to manually enter time intervals, use the Timer function (see section 4.5.9).
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 concentration of the diluted test sample is within the measuring range of the method (see photometry analysis manual). Thus a valid measurement is possible. After entering the factor for the dilution the meter converts the concentration to that of the undiluted sample.
pHotoFlex / pHotoFlex Turb Operation 4.6 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. Temperature measurement For reproducible pH measurements, it is essential to measure the temperature of the test sample.
Operation pHotoFlex / pHotoFlex Turb 4.6.2 Measuring the pH value 1 Perform the preparatory activities according to section 4.6.1. 2 Immerse the pH electrode in the test sample. pH & ORP \ pH 6.94 25.0 °C [AR] 01.02.05 15:12 3 AutoRead (Drift control) Criteria 52 Press the key (short pressure) repeatedly until the measured variable, pH is selected. The AutoRead function (drift control) continually checks the stability of the measurement signal.
pHotoFlex / pHotoFlex Turb Operation 4.6.3 Measuring the ORP voltage Note ORP electrodes are not calibrated. However, you can check ORP electrodes using a test solution. 1 Perform the preparatory activities according to section 4.6.1. 2 Submerse the ORP electrode in the sample. pH & ORP \ ORP 157 mV 25.0 °C [AR] 01.02.05 15:12 3 AutoRead (drift control) Criteria The AutoRead function (drift control) continually checks the stability of the measurement signal.
Operation Settings/functions pHotoFlex / pHotoFlex Turb The settings can be found in the Configuration / pH & ORP menu. To switch to the Configuration menu, press the
pHotoFlex / pHotoFlex Turb Operation 4.6.5 Why calibrate? When to calibrate? Calibration pH electrodes age. This changes the asymmetry (zero point) and slope of the pH electrode. As a result, an inexact measured value is displayed. Calibration determines the current values of the asymmetry and slope of the electrode and stores them in the meter. Thus, you should calibrate at regular intervals.
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: 1-point Determined values Displayed calibration data Asy ! Asymmetry = Asy ! Slope = Nernst slope (-59.16 mV/pH at 25 °C) 2-point 3-point Asy Slp. ! Asymmetry = Asy Asy Slp. ! Asymmetry = Asy ! Slope = Slp.
pHotoFlex / pHotoFlex Turb Sample printout of a record Calibration evaluation Operation 31.10.03 16:13 pHotoFlex Ser. no. 12345678 Calibration pH & ORP Calibration date 31.10.03 16:13:33 Calibration interval 7 d AutoCal TEC Buffer 1 4.01 Buffer 2 7.00 Buffer 3 10.01 Voltage 1 184.0 mV 24.0 °C Voltage 2 3.0 mV 24.0 °C Voltage 3 -177.0 mV 24.0 °C Slope -60.2 mV/pH Asymmetry 4.0 mV Sensor +++ After calibrating, the meter automatically evaluates the calibration.
Operation Preparatory activities pHotoFlex / pHotoFlex Turb Perform the following preparatory activities when you want to calibrate: 1 Connect the pH electrode to the meter. The pH measured value display is displayed on the screen. 2 Keep the buffer solutions ready. Adjust the temperature of the buffer solutions, or measure the current temperature if you measure without a temperature sensor. 4.6.
pHotoFlex / pHotoFlex Turb Operation 5 Using <▲> <▼>, select Continue and press . The buffer is measured. The measured value is checked for stability (AutoRead). pH & ORP \ Calibration i Buffer value = 7.00 i U = 3 mV i Temperature = 24.8 °C Terminate AutoRead 6 Wait for the end of the AutoRead measurement or accept the calibration value with . The calibration display for the next buffer appears.
Operation Continuing for two-point calibration (Cal. type TEC) pHotoFlex / pHotoFlex Turb 8 Thoroughly rinse the electrode with distilled water. 9 Immerse the electrode in buffer solution 2. 10 If the Set temperature menu item appears, measure and enter the temperature of the buffer manually (measurement without temperature sensor). 11 Using <▲> <▼>, select Continue and press . The buffer is measured. The measured value is checked for stability (AutoRead).
pHotoFlex / pHotoFlex Turb Continuing for threepoint calibration (Cal. type TEC) Operation 14 Thoroughly rinse the electrode with distilled water. 15 Immerse the electrode in buffer solution 3. 16 If necessary, measure the temperature of buffer 3 manually, then enter and confirm it with <▲> <▼> and in the Set temperature setting. 17 Using <▲> <▼>, select Continue and press . The buffer is measured. The measured value is checked for stability (AutoRead).
Operation pHotoFlex / pHotoFlex Turb Venting the sample Avoiding or removing air bubbles 4.7 Turbidity 4.7.1 General information Air bubbles in the sample affect the measuring result to a massive extent 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 turbidity.
pHotoFlex / pHotoFlex Turb Operation to mark the optimum position of the cell once it is determined. This shortens each measurement or calibration procedure with this cell considerably. The marking can, e. g., be done on a label on the cap of the cell. 6 4.7.3 Mark the optimum position of the cell. The cell is prepared for the shortened measuring and calibration procedures. Measuring turbidity Caution Never pour any liquids directly into the cell shaft. Always use a cell for measurement.
Operation pHotoFlex / pHotoFlex Turb 7 Align the cell: ! Marked cell – Align the marking on the cell cap with the marking on the cell shaft. – Press and for a short time hold the key until the measured value is displayed. ! Unmarked cell (see page 62) – Press and hold the key. – Slowly and in small steps turn the cell by one complete rotation (by 360 °). After each step wait for a short time until the displayed measured value is stable.
pHotoFlex / pHotoFlex Turb Operation 4.7.4 When to calibrate? Calibration ! Regularly every 90 days ! With a temperature change Calibration procedures and calibration standards For the menu-guided three-point calibration you need the following three calibration standards in the mentioned order: Standard no.
Operation pHotoFlex / pHotoFlex Turb 4 Align the cell: ! Marked cell: – Align the marking on the cell cap with the marking on the cell shaft. – Press and time hold the key until the measured value is displayed. ! Unmarked cell (see page 62) – Press and hold the key. – Slowly and in small steps turn the cell by one complete rotation (by 360 °). – After each step wait for a short time until the displayed measured value is stable.
pHotoFlex / pHotoFlex Turb Operation Turbidity i Insert sample i Press and hold i Align sample Note If i Calibration error! was displayed as the calibration result, a note appears on the display to recalibrate before measuring. Should a valid calibration not be possible the meter also offers to continue measuring with the last valid calibration data.
Operation pHotoFlex / pHotoFlex Turb 4.8 Storing The meter has 1000 storage locations for measurement datsets. You can transmit measured values (datasets) to the data storage with the key. Each storage process transmits the current dataset to the interface at the same time. The number of storage locations that are still free is displayed in the Store menu. The number of storage locations that are occupied is displayed in the System \ Measured value memory menu.
pHotoFlex / pHotoFlex Turb Operation 4.8.1 Storing measurement datsets Proceed as follows to transmit to the data storage and simultaneously output to the interface a measurement dataset: 1 Press the key. The Store display appears. Store (996 free)s i 02.02.2005 11:24:16 0.00 mg/l PO4-P BV PROG 1 ID: Store (ID: 1: 1 2 Using <▲> <▼>, and the number keys, change and confirm the ID number (ID) as necessary (0 ... 999). 3 Using or , confirm Store.
Operation pHotoFlex / pHotoFlex Turb 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 correspond to the adjusted filter criteria. The settings can be found in the Configuration / System / Measured value memory /Data filter menu. To switch to the Configuration menu, press the
pHotoFlex / pHotoFlex Turb Operation 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. Display of a dataset 02.02.2005 11:24:16 ID: 1 7.000 (pH) 24.
Operation pHotoFlex / pHotoFlex Turb 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. Note Erasing individual datasets is not possible. If all storage locations are occupied, however, it is possible to overwrite the oldest dataset at a time. A security prompt appears before a dataset is overwritten. 4.
pHotoFlex / pHotoFlex Turb Operation Socket assignment 3 4 2 6 5 1 RS 232 REC 4.9.2 1 RTS 2 RxD 3 TxD 4 DTR 5 SG 6 CTS 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. The baud rate is selected in the menu, Configuration / System / Interface / Baud rate.
Operation pHotoFlex / pHotoFlex Turb 1 Output format, CSV 2 3 4 5 6 7 8 9 10 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.
pHotoFlex / pHotoFlex Turb Operation 12 Data Description Unit of 11 ! °C / °F ! nm 13 4.9.4 Measured value status of 11 VALID, INVALID, UFL, OFL Transmitting data The following table shows which data are transmitted to the interface in which way: Data Operation / description Current measured value ! Press . Stored measured values Calibration record (pH electrode) ! Simultaneously with every manual storage process. ! Display stored dataset and press .
Operation pHotoFlex / pHotoFlex Turb 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. ! Settings for pH & ORP (see section 4.10.3) ! Settings for Photometry (see section 4.10.
pHotoFlex / pHotoFlex Turb Operation 4.10.2 Resetting the photometer settings With the Photometry / Reset function, all photometer settings are reset. Setting Default settings PROG 0 Cell size 16 mm Measured parameter Konzentration Wavelength 436 nm Blank values all erased 4.10.3 Resetting the pH settings Note The calibration data are reset to the default settings together with the measuring parameters. Recalibrate after performing a reset.
Operation pHotoFlex / pHotoFlex Turb 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 i Prog.: V 0.07 i Ser. no.: 04280003 4.12 Software update With a software update you obtain the current software with all new programs and method data (see appendix).
pHotoFlex / pHotoFlex Turb Operation 4.13 Administrating user-defined methods User-defined programs can be ! entered ! read out ! erased. 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 software (see operating manual LSdata) or with the aid of a terminal program (section 4.13.1).
Operation pHotoFlex / pHotoFlex Turb 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 display. Thus, it is also possible to send command lines. Terminal programs are available for different operating systems by different manufacturers. Windows (version 95 to XP) contains the "HyperTerminal" terminal program.
pHotoFlex / pHotoFlex Turb Operation 6 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 programming procedure is canceled. To store the program under the selected number, first erase the program stored under the number. After successful transmission, the terminal program writes "!>". If the transmission failed, the terminal program writes "!>".
Operation pHotoFlex / pHotoFlex Turb 10 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 "!>".
pHotoFlex / pHotoFlex Turb Maintenance, cleaning, disposal 5 Maintenance, cleaning, disposal 5.1 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. The ± signs on the batteries must correspond to the ± signs in the battery compartment.
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). 1 2 3 1 Open the battery compartment: – Unscrew the two screws (1) on the underside of the meter, – Remove the lid of the battery compartment (2). 84 2 If necessary, take four old batteries out of the battery compartment.
pHotoFlex / pHotoFlex Turb Maintenance, cleaning, disposal 5.2 Cleaning Occasionally wipe the outside of the meter with a damp, lint-free cloth. Disinfect the housing with isopropanol as required. Caution The housing components are made out of synthetic materials (polyurethane, ABS and PMMA). Thus, avoid contact with acetone and similar detergents that contain solvents. Remove any splashes immediately. 5.2.1 Cleaning the cell shaft If liquid is in the cell shaft (e.g.
Maintenance, cleaning, disposal pHotoFlex / pHotoFlex Turb 5.3 Disposal Packing This meter is sent out in a protective transport packing. We recommend: Keep the packing material. The original packing protects the meter from transport damages. Batteries/accumulator pack Remove the batteries or accumulator pack from the meter (see section 5.1). Dispose of the batteries or accumulator pack at a suitable facility according to local legal requirements.
pHotoFlex / pHotoFlex Turb Display, LoBat Instrument does not react to keystroke RS232 interface does not react What to do if... 6 What to do if... 6.1 General errors Cause Remedy – The batteries or accumulator pack are largely depleted – Insert new batteries Cause Remedy – Software error – Operating condition undefined or EMC load unallowed – Processor reset: Press the and key simultaneously.
What to do if... pHotoFlex / pHotoFlex Turb 6.2 Measuring range undercut or exceeded Photometry Cause Remedy – Program not suitable – Select program with suitable measuring range – Dilute the sample Obviously incorrect measured values Cause Remedy – Measurement disturbed by external light – Close the external light cover. – Cell not correctly inserted – Insert the cell so that it is positioned on the bottom of the cell shaft.
pHotoFlex / pHotoFlex Turb Measured value display ---(calibration error) What to do if...
What to do if...
pHotoFlex / pHotoFlex Turb Dimensions Weight Mechanical structure Technical data 7 Technical data 7.1 General data 7.1.1 pHotoFlex (Turb) approx. 236 x 86 x 117 mm approx. 0.6 kg (without batteries) Type of protection IP 67 Electrical safety Protective class III Test certificates cETLus, CE, FCC Ambient conditions Allowable relative humidity Power supply ba75491d04 07/2006 Storage - 25 °C ... + 65 °C Operation 0 °C ...
Technical data pHotoFlex / pHotoFlex Turb Serial interface Guidelines and norms used Connection of the cable AK 540/B or AK 540/S Baud rate adjustable: 1200, 2400, 4800, 9600, 19200 Baud Type RS232 Data bits 8 Stop bits 2 Parity None Handshake RTS/CTS Cable length max. 15 m EMC EC guideline 89/336/EEC EN 61326-1/A3:2003 FCC Class A Instrument safety EEC guideline 73/23/EEC EN 61010-1 :2001 UL3101-1 CAN/CSA-C22.2 No. 1010.
pHotoFlex / pHotoFlex Turb Technical data 7.1.2 Dimensions Weight approx. 236 x 82 x 170 mm approx. 0.6 kg 7.2 Optical measuring principle Interference filter LabStation Photometry LED photometer with filter 436 nm, 517 nm, 557 nm, 594 nm, 610 nm, 690 nm Accuracy: Photometric reproducibility 0.005 or better Photometric resolution 0.001 Warm-up time none Measuring time Measured parameters Measuring range User-defined programs Resolution Transmission ba75491d04 07/2006 ± 2 nm approx.
Technical data pHotoFlex / pHotoFlex Turb 7.3 Measuring ranges, resolution pH value / ORP voltage Variable Measuring range Resolution pH - 2.00 ... + 16.00 0.01 U [mV] - 1000 ... + 1000 1 T [°C] - 5.0 ... + 100.0 0.1 T [°F] - 23.0 ... + 212.0 0.1 Manual temperature input Variable Range Increment Tmanual [°C] - 20 ... + 100 1 Accuracy (± 1 digit) Variable Accuracy pH * ± 0.01 + 15 °C ... + 35 °C U [mV] ±1 + 15 °C ... + 35 °C T [°C] ± 0.3 0 °C ... + 55 °C T [°F] ± 0.
pHotoFlex / pHotoFlex Turb Accessories, options 8 Accessories, options 8.1 WTW accessories Description Model Order no. LabStation pHotoFlex LS 251 301 Accumulator with pHotoFlex power pack pHotoFlex BB 251 300 3 empty cuvettes, 28 x 60 mm LKS28-Set 251 302 Calibration standard kit for Turb 430 IR/pHotoFlex Turb Kal.
Accessories, options Thermoprinter pHotoFlex / pHotoFlex Turb You can connect the P3001 to the pHotoFlex (Turb) in the following ways: Description Model Order no.
pHotoFlex / pHotoFlex Turb Accessories, options 8.
Accessories, options 98 pHotoFlex / pHotoFlex Turb ba75491d04 07/2006
pHotoFlex / pHotoFlex Turb Lists 9 Lists This chapter provides additional information and orientation aids. Abbreviations Specialist terms ba75491d04 07/2006 The list of abbreviations explains the indicators and the abbreviations that appear on the display and in the manual. 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.
Lists pHotoFlex / pHotoFlex Turb Abbreviations 100 °C Temperature unit, degrees Celsius °F Temperature unit, degrees Fahrenheit Asy Asymmetry Cal Calibration d Day h Hour j Year K Temperature unit, Kelvin LoBat Batteries almost empty (Low battery) m Month mV Voltage unit mV/pH Unit of the electrode slope (internat. mV) NIST/DIN Automatic pH calibration with buffer solutions prepared according to NIST or DIN 19 266 pH pH value s Second S Slope (internat.
pHotoFlex / pHotoFlex Turb Lists 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. Analysis specification The exact proceeding to carry out the detection procedure is described in the analysis specification. Asymmetry Designation for the offset potential of a pH electrode.
Lists pHotoFlex / pHotoFlex Turb Junction LED Measured parameter 102 The junction is a porous body in the housing wall of reference electrodes or electrolyte bridges. It forms the electrical contact between two solutions and makes electrolyte exchange more difficult. The expression, junction, is also used for ground or junction-less transitions. Light Emitting Diode LEDs are used as the light source in the pHotoFlex (Turb). The measured parameter is the physical dimension determined by measuring, e. g.
pHotoFlex / pHotoFlex Turb Program Reset Resolution Slope Standard solution Lists In the pHotoFlex (Turb), methods with the relevant method data are stored as programs. Programs are called up via the assigned program number. Restoring the original condition of all settings of a measuring system. Smallest difference between two measured values that can be displayed by a meter. The slope of a linear calibration function. The standard solution is a solution where the measured value is known by definition.
Lists 104 pHotoFlex / pHotoFlex Turb ba75491d04 07/2006
pHotoFlex / pHotoFlex Turb 10 Index Index A Accumulator pack charging time .....................................17 Air ..........................................................62 Aligning and marking a cell .......................62 Analysis specification ...............................40 Analysis timer ..........................................49 Asymmetry of the pH electrode .................55 Authorized use .........................................14 Automatic switchoff ............................
Index pHotoFlex / pHotoFlex Turb P U pH calibration evaluation .......................... 57 Photometric determinations ...................... 40 Power pack ............................................. 17 Print ....................................................... 75 Program ................................................. 40 Programs ............................................... 48 User-defined programs ............................ 48 Z Zero adjustment ......................................
pHotoFlex / pHotoFlex Turb Appendix: 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. A free serial interface (COM port) on your PC and the AK 540/B interface cable is required for this.
pHotoFlex / pHotoFlex Turb 108 ba75491d04 07/2006
Wissenschaftlich-Technische Werkstätten GmbH Dr.-Karl-Slevogt-Straße 1 D-82362 Weilheim Germany Tel: Fax: E-Mail: Internet: +49 (0) 881 183-0 +49 (0) 881 183-100 +49 (0) 881 183-420 Info@WTW.com http://www.WTW.
