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pHotoFlex pH Handheld colorimeter

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1. 15 3 2 Powersupply 15 3 2 1 15 3 2 2 Inserting exchanging the batteries 17 3 3 Initial commissioning 18 4 Operation ass teil ix ewe Y d l kn 19 4 1 Switching on the 19 4 2 Inserting a cell 20 4 3 General operating principles 22 4 3 1 Operating 22 4 3 2 22 44 4 5 4 3 8 Navigation example 1 Setting the language 24 4 3 4 Navigation example 2 Setting the date and time 25 4 35 Menu overview 28 System settings System menu 30 4 4 4 Measured value 31 444 2 Display is tcu Me MR TE 33 443 Interface 33 444 34 CERT 35 4 5 1 35 4 5 2 Settings for photometric measurements 36 76123 01 02 2013 Contents pHotoFlex pH 4 5 3 Measuring the concentration 37 4 5 4 Blank value reagent blank value 38 4 5 5 Standard adjustment user calibration 41 4 5 6 Measuring the absorbance transmission
2. 01 02 05 15 12 3 Press the lt M gt key short pressure repeatedly until the mea sured variable pH is selected AutoRead The AutoRead function drift control continually checks the stability of Drift control the measurement signal The stability has a considerable impact on the reproducibility of measured values The display of the measured pa rameter flashes until a stable measured value is available Criteria With identical measurement conditions the following applies Measured Reproducibility Response time parameter pH value Better than 0 01 gt 30 seconds 50 76123 01 02 2013 pHotoFlex pH Operation AutoRead drift control Criteria Overview 4 6 3 Measuring the ORP voltage ORP electrodes are not calibrated However you can check ORP elec trodes using a test solution 1 Perform the preparatory activities according to section 4 6 1 2 Submerse the ORP electrode in the sample pH amp ORP ORP 157 v 25 0 C 01 02 05 15 12 3 Press the M key short pressure repeatedly until the mea sured parameter OHP is selected The AutoRead function drift control continually checks the stability of the measurement signal The stability has a considerable impact on the reproducibility of measured values The display of the measured pa rameter flashes until a stable measured value is available With identical measurement conditions the fo
3. 43 45 7 44 45 9 PFOGramS se s3 ar nA v Rod betes eee 46 4 5 9 Analysis timer 47 4 5 10 47 4 5 11 Measuring diluted samples 48 4 66 pHvalue ORP voltage 49 4 6 1 Generalinformation 49 4 6 2 Measuring the pH value 50 4 6 3 Measuring the ORP 51 4 6 4 Settings for pH and ORP measurements 51 4 6 5 Calibration 53 4 6 6 Carrying out the TEC and NIST DIN calibration 56 4T COLO usc satel fus n B c ogee 60 4 7 1 Storing measurement datsets 61 4 7 2 Filtering measurement datsets 62 4 7 3 Displaying measurement datsets 63 4 7 4 Downloading the measurement datsets to the H9232 interface 63 4 7 5 Erasing stored measurement datasets 64 4 8 Transmitting data RS 232 interface 64 4 8 1 64 4 8 2 Configuring the RS232 interface 65 4 8 3 Selecting the output format of datasets 65 4 84 Transmitting 67 2 9 RESET i ense ias i ACH eee GU 68 4 9 1 Resetting the system settings 68 4 9 2 Resetting the pho
4. ACCESSONES s4 k3 av tak n n ey SAVA 89 8 1 1 Connection cable 89 8 2 Optional extensions of the pHotoFlex9 DEL cesis 89 9 y a ki ye ee 91 10 Index sa A ki xa san ban h Way y a aw Rowe a eens 97 11 Firmware update 99 12 Contact Information 101 12 1 Ordering amp Technical Support 101 12 2 Service Information 101 76123 01 02 2013 Contents pHotoFlex pH 6 76123 01 02 2013 pHotoFlex pH Overview 1 Overview 1 1 General features The compact pHotoFlex pH handheld precision meter enables you to carry out the following measurements quickly and reliably Photometric measurements Concentration measurements colorimetric measurements Absorbance measurements Transmission measurements pH measurements The pHotoFlex pH handheld meter provides the maximum degree of operating comfort reliability and measuring certainty for all applica tions The proven MultiCal9 calibration procedure supports you when cali brating for pH measurements and the AutoRead function enables pre cise pH measurements 1 Keypad 2 Display 3 Cell shaft folded out for a 16 mm cell to be inserted 4 Socket field 76123 01 02 2013 Overview pHotoFlex pH
5. Calibration interval expired Recalibrate the measuring system 84 76123 01 02 2013 pHotoFlex pH Technical data 7 Technical data 7 1 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 Hl Test certificates cETLus CE FCC Storage 25 C 65 C Ambient conditions Operation 0 C 50 Climatic class 2 Allowable relative Yearly mean 75 humidity 30 days year 95 other days 85 Power Batteries 4 x 1 5 V type AA supply Operating time with approx 5000 measurements battery operation Rechargeable battery 5 x 1 2 V nickel metal hydride NiMH optional type AAA Power pack FRIWO FW7555M 09 15 1432 500 00 Charging device Friwo Part No 1883259 optional Input 100 240 V 50 60 Hz 400 mA Output 9 V 2 1 5A Connection max overvoltage category Il Primary plugs contained in the scope of de livery Euro US UK and Australian 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 8 Stop bits 2 Parity None Handshake RTS CTS Cable length max 15 m ba76123e01 02 2013 85 Technical data pHotoFlex pH Guidelines EMC EC guideline 89 336 EEC and norms used EN 61326 1 A3 2003 FCC Class A In
6. AutoRead Calibration record Displaying and down loading calibration data to interface 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 Displayed calibration data ues 1 point Asy Asymmetry Asy Slope Nernst slope 59 16 mV pH at 25 C 2 point Asy Asymmetry Asy Sip Slope Sip 3 point Asy Asymmetry Asy Sip Slope Sip The calibration line is calculated by linear regression You can display the slope in the unit mV pH or see section 4 6 4 The calibration procedure automatically activates the AutoRead func tion The current AutoRead measurement can be terminated at any time accepting the current value When finishing a calibration the new calibration values are displayed as an informative message symbol first Then you can decide whether you want to take over these values of the new calibration or whether you want to continue measuring with the old calibration data After accepting the new calibration values the calibration record is dis played You can view the data of the last calibration on the display Subse quently you can download the displayed calibration data to the inter face e g to a PC with the PRT key The calibration record of the last calibra
7. Cause Select program with suitable measuring range Dilute the sample 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 Cell contaminated Clean the cell Cell shaft contaminated Clean the cell shaft Dilution set incorrectly Set the dilution Selected program unsuitable Select other program Zero measurement incorrect Perform zero measurement Blank value incorrect 6 3 Cause pH value ORP voltage Remeasure the blank value Remedy Electrode Air bubble in front of the diaphragm Remove air bubble Air in the diaphragm Extract air or moisten diaphragm Gel electrolyte dried out Replace electrode Test sample The pH value lies outside the not possible measuring range 82 ba76123e01 02 2013 pHotoFlex pH What to do if Measured value display calibration error No stable measured value Cause Remedy Electrode Diaphragm contaminated Clean diaphragm Membrane contaminated Clean membrane Moisture in the plug Dry plug Not enough electrolyte Top up electrolyte Electrode obsolete Replace electrode Electrode broken Replace elec
8. Key functions 2 Keypad UNIT 2 R STO ESC START ENTER Select the measuring mode M long keystroke Photometry pH amp ORP Select the measured parameter within a measur ing mode M short keystroke pH amp pH Photometry Concentration Absorbance 6 Transmission CAL ZERO Start calibration measuring mode pH amp ORP Start zero adjustment or blank value measure ment using the Photometry Adjustment menu measuring mode Photometry lt CAL ZERO gt In the Photometry measuring mode Select a pro gram for concentration measurement lt PROG gt START ENTER Open menus confirm entries start measurement lt START ENTER gt A Call up the Configuration menu all settings are made here lt MENU gt 76123 01 02 2013 pHotoFlex pH Overview In the Photometry measuring mode measured parameter Concentration switch over between available citation forms lt FORM gt UNIT In the Photometry measuring mode measured parameter Concentration Switch over between available units lt UNIT gt Switch the measuring instrument on off lt ON OFF gt PRT Output display contents to RS232 interface lt PRT gt Open the Store menu lt STO gt Quick storing lt STO gt lt STO gt Highlight menu items or selection Set values lt A gt
9. 20 Drift control R ORP RRRARARARARARRRRRRRRRRRRARARARARRRRRRRRRRRRARRRRRG 51 Rechargeable battery pH TRU PUE E AA E A 50 charging time 3 15 68 5232 socket assignment 64 62 Firmware update 99 ba76123e01 02 2013 97 Index pHotoFlex pH S Safety sya 13 Scope Of delivery 15 Single point calibration oj 57 Pherae eect ie heats dees acetal 53 Socket field RE RE 10 Storage of measured values storage locations 60 2152 1879 e 60 Switching ON 19 System menu ise Dd 33 general information 36 System settings pet 30 general 30 33 34 T Temperature measurement uoi M dt ct seta dies 49 MOS SOU esce DE 35 Three point calibration DES tere eter De DD ERR 59 TIME dS ec co Muy Siete 47 Transmitting data cione 64 Transmitting measured values 64 Two point calibration 58 0 User defined programs 46 Z Zero adjustment x 44 98 ba76123e01 02 2013 pHotoFlex pH Firmware update
10. AB 25 MC Program number test code 0 20 8 00 mg l Measuring range with unit NH4 N 16 mm Citation form B Scroll with A Y Diameter of the cell This data is also to be found in the photometry analysis manual in the overview of the test sets and in the individual analysis specifications for the test sets Under www YSl com on the Internet you can always find the latest software version with the newest programs and method data for your pHotoFlex pH see FIRMWARE UPDATE User defined programs methods can be stored under program num bers between 900 and 999 You can store up to 100 user defined pro grams see section 4 12 46 76123 01 02 2013 pHotoFlex pH Operation 4 5 9 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 Timerfunction see section 4 5 10 The Analysis timer with the required time interval is automatically dis played at the due point Start the Analysis timer with the lt START ENTER gt key It is not possible to shorten the time intervall An acoustic signal sounds when the adjusted time interval has expired The An
11. The CD ROM contains a configuration file for the HyperTerminal pro gram By double clicking the configuration file ht the HyperTerminal with the required pre settings for data exchange with the meter is opened The pHotoFlex9 pH can administrate the database of user defined pro grams via command lines 1 With the aid of the AK 540 B interface cable connect the pHotoFlex9 pH 540 to the serial interface COM port of the PC see section 8 1 1 2 Make sure the pHotoFlex9 pH is switched on 3 Start the terminal program on the PC 4 Configure the connection settings for the COM interface as necessary 72 76123 01 02 2013 pHotoFlex pH Operation Storing user defined programs i Erasing user defined programs Enter a command line according to the following scheme in the terminal program U 500 14 Program No Model Cell Wave length nm MRB MRE EO Slope Resolution Citation form Unit Blank required Standard adjustment possible Standard adjustment required Example U 500 14 900 Test 16 436 0 0 2 0 0 0 1 0 0 01 test mg 1 0 1 0 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 5 Enter the command line 6 Finish the command line with Enter The data is transmitted to the pHotoFlex9 pH If a program is already stored under the selected number the
12. The settings can be found in the Configuration System Display menu To switch to the Configuration menu press the MENU key Settings Menu item Setting Description Illumination Auto off The display illumination is automatically switched off if no key has been pressed for 30 seconds On Switches the display illumi Off nation on or off permanent ly see section 4 5 9 Contrast 0 100 Changes the display con trast Brightness 0 100 Changes the display bright ness 4 4 3 Interface In the Interface menu you set the features of the interface Transmission speed Baud rate Output format Output format The settings can be found in the Configuration System Interface menu To switch to the Configuration menu press the lt gt key Settings Menu item Setting Description Baud rate 1200 2400 Baud rate of the data 4800 9600 interface 19200 Output format ASCII Output format for data CSV transmission For details see section 4 8 ba76123e01 02 2013 33 Operation pHotoFlex pH 4 4 4 Date time In the Configuration System Continue Date time menu you set the system clock Current time Time Current date Date e 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 MENU key Settings Menu item Setting Descripti
13. 902 758Y USB adapter Ada USB 902 881Y for USB connection on PC 8 2 Optional extensions of the pHotoFlex pH The following optional extensions are available in specialist shops Device cable Model Barcode reader e Handscanner Datalogic DLC6065 M1 e Handscanner Datalogic Touch65 Connection cable Datalogic CAB 350 Barcode reader LabSta tion In addition to the barcode reader a suitable connection cable is required to operate the barcode reader 76123 01 02 2013 89 Accessories options pHotoFlex pH 90 76123 01 02 2013 pHotoFle x pH Lists Abbreviations Specialist terms 9 Lists This chapter provides additional information and orientation aids 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 How ever terms that should already be familiar to the target group are not described here 76123 01 02 2013 91 Lists pHotoFlex pH Abbreviations 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
14. C Temperature unit C F Reset Timer Continued next page 28 76123 01 02 2013 pHotoFlex pH Operation System Language Deutsch English Francais Espanol Measured value Display i RS232 download Data filter Filter ID PROG Date Delete E 4 of 1000 occupied Filter No filter Display Illumination Auto off On Off Contrast 0 100 96 Brightness 100 Reset Interface Baud rate 1200 2400 4800 9600 19200 Output format ASCII CSV Continue Time hh mm ss Date time Date Date format dd mm yy Continue 10 20 30 40 50 min Switchoff time 1 2 3 4 5 10 15 20 24h Continue On Beep Off Info ba76123e01 02 2013 29 Operation pHotoFlex pH Settings functions 4 4 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 Configuration of the interface for PC nterface Setting the date time Date time Setting the switch off time Switchoff time Setting the keyboard sound Beep The settings can be found in the Configuration System menu To switch to the Configuration menu press the MENU key Menu item Setting Description L
15. General information Connecting the meter to the PC Program installation Program start Firmware update 11 Firmware update You can update the firmware of the pHotoFlex9 pH to the latest version with the aid of a Personal Computer You can find available firmware update files for your meter on the Inter net 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 inter face cable is required for this The following is required for connection to a PC a free serial interface COM or USB port on your PC cable or LabStation with cable for connection to PC for direct connection of the meter to the PC the AK 540 B interface cable accessory or for connection with the LabStation an operable LabStation with null modem cable accessory see section 8 1 for connection to a USB interface on the PC a USB adapter accessory Install the firmware update program on your PC For Microsoft Windows 7 administrator rights are required Start the program from the Windows start menu Via the language menu you can change the adjusted language For Microsoft Windows 7 administrator rights are required Proceed as follows 1 Connect the pHotoFlex pH to an interface of the PC Make sure the pHotoFlex9 pH is switched on To start the updating process c
16. Product Return form with cleaning certification The form must be completely filled out for an YSI Service Center to accept the instrument for service The Product Return form may be downloaded at www ysi com and clicking on the Support tab 76123 01 101 Contact Information pHotoFlex pH 102 ba76123e01 02 2013 Xylem zilam 1 The tissue in plants that brings water upward from the roots 2 a leading global water technology company We re 12 500 people unified in a common purpose creating innovative solutions to meet our world s water needs Developing new technologies that will improve the way water is used conserved and re used in the future is central to our work We move treat analyze and return water to the environment and we help people use water efficiently in their homes buildings factories and farms 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 backed by a legacy of innovation For more information on how Xylem can help you go to www xyleminc com BB ji EM EZ mum rl YSI E ER 1725 Brannum Lane Yellow Springs OH 45387 Y S i Tel 1 937 767 7241 800 765 4974 Fax 1 937 767 1058 Email environmental ysi com Web www ysi com a xylem brand
17. Upper lower measuring range limit only with measured value status OFL UFL 10 Unit of 9 Unit of the measured value or Designation of dimensionless measured values e g pH 11 Measured value VALID Measured value valid status of 9 INVALID Measured value invalid UFL Measured value below the lower measuring range limit OFL Measured value above the upper measuring range limit 12 Secondary mea Measuring mode pH amp ORP Temperature sured value Measured parameter Absorbance Transmission Wavelength e 1 a oot parameter Concentration Status standard adjust 13 Unit of 12 e Measuring mode pH amp ORP F e Measured parameter Absorbance Transmission nm 14 Measured value sta VALID INVALID UFL OFL see point 11 tus of 12 66 76123 01 02 2013 pHotoFlex pH Operation 4 8 4 Transmitting data The following table shows which data are transmitted to the interface in which way Data Operation description Current Press lt PRT gt measured value Simultaneously with every manual storage process Stored measured values Display stored dataset and press lt PRT gt All datasets according to the filter criteria via the RS232 download function see section 4 7 2 Calibration record pH electrode Calibration record of a pH electrode with lt PRT gt after calling up from the storage or at the end of a
18. V ESC Switch to the next higher menu level cancel input lt ESC gt Keys with an additional number printed on are assigned doubly This enables to directly enter numbers in special menus Thus you can for example conveniently enter the date and time via the number keys 76123 01 02 2013 Overview pHotoFlex pH Example Identifying the connectors 1 3 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 Photometry Concentration q Measuring mode measured parameter 1 29 mg l L Measured value with unit L Program and citation form 16 mm 0 20 8 00 mg l g Diameter of the cell and Status line with date and time 1 4 Socket field 22 29 22 o 200 X 7 1 23 4 5 1 pH electrode pH temperature sensor Power pack 9 V DC see section 7 1 Contacts for operation on the LabStation oa N RS232 serial interface 1 5 LabStation optional The which is available as an accessory enables you to use the pHotoFlex9 pH conveniently in the laboratory see LabStation op erating manual 10 76123 01 02 2013 pHotoFlex pH Overview Laboratory operation with the LabStation enables the following addi tional functions With photometric measureme
19. a power pack The power pack supplies the meter with low voltage 9 V DC At the same time the rechargeable battery is charged The rechargeable battery is charged even while the meter is switched off The LoBat display indicator appears when the batteries or recharge able batteries is nearly discharged approx 36 hours CAUTION Use original power packs only The line voltage at the operating site must lie within the input volt age range of the original power pack see chapter 7 TECHNICAL DA TA The rechargeable battery should not be completely discharged If you do not operate the instrument for a longer period of time you should charge the rechargeable battery every six months 76123 01 02 2013 15 Commissioning pHotoFlex pH Automatic switchoff Display illumination i Connecting the power pack optional The meter has an automatic switch off function in order to save the bat teries or rechargeable battery see section 4 4 During operation with batteries or rechargeable battery the meter auto matically switches off the display illumination if no key is pressed for 30 seconds The illumination is switched on with the next keystroke again The display illumination can also be switched off completely see section 4 4 2 Power pack and rechargeable battery are available as an accessory see section 8 1 If necessary replace the Euro plug 1 on the power pack 2 by the
20. and are only conditionally resistant against organic solvents Thus avoid contact with acetone and similar detergents that contain solvents Remove any splashes immediately 5 2 4 Cleaning the cell shaft If liquid is in the cell shaft e g due to a spilled cell clean the cell shaft as follows CAUTION Cells can contain poisonous or corrosive substances If the con tent is released follow the danger warnings on the cell If neces sary take corresponding protective measures protective goggles protective gloves etc 1 Switch the pHotoFlex pH off and pull out the power plug 2 Rinse the cell shaft with distilled water ba76123e01 02 2013 79 Maintenance cleaning disposal pHotoFlex pH 5 2 2 Cleaning the cells Cells have to be clean dry and free of fingerprints Therefore clean them regularly 1 Clean the cells inside and out with hydrochloric acid or labora tory soap 2 Rinse out several times with distilled water 3 Let them dry in the air 4 Only hold the cells by the top or by the light protection cap so that the optical path is not impaired 5 Before measuring clean the cell with the enclosed cleaning cloth 5 3 Packing This meter is sent out in a protective transport packing We recommend Keep the packing material The original packing pro il tects the meter against damage during transport 5 4 Disposal Batteries Dispose of used batteries accor
21. country specific plug suitable for your country 2 Connect the plug 3 to the socket 4 of the meter 3 Connect the power pack to an easily accessible power socket 16 76123 01 02 2013 pHotoFlex pH 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 bat tery compartment 1 Open the battery compartment Unscrew the two screws 1 on the underside of the meter Remove the lid of the battery compartment 2 2 If necessary take four old batteries out of the battery compart ment 3 Insert four batteries 3 in the battery compartment 4 Close the battery compartment and fix it with the screws ba76123e01 02 2013 17 Commissioning pHotoFlex pH 3 3 Initial commissioning Perform the following activities e For Battery operation Insert the batteries see section 3 2 2 Rechargeable battery operation insert the rechargeable battery see section 5 1 2 line power operation and charging the rechargeable battery connect the power pack see section 3 2 Operation with LabStation and rechargeable battery Insert the rechargeable battery connect the LabStation and insert the meter in the LabStation see LabStation operating manual Switch on the meter see section 4 1 Set the l
22. essential to measure the tem perature of the test sample You have the following possibilities for measuring the temperature Automatic measurement of the temperature by a temperature sen sor NTC30 or Pt1000 integrated in electrode Manual determination and input of the temperature The meter recognizes whether a suitable electrode is connected and automatically switches on the temperature measurement The display of the temperature indicates the active temperature mea suring mode Temperature Resolution of the Temperature of the test sensor temp display sample yes 0 1 C automatic measurement 1 C manual measurement and entry Perform the following preparatory activities when you want to measure 1 Connect a pH or ORP electrode to the meter 2 Press the lt M gt key long pressure repeatedly until the pH amp ORP measuring mode is selected 3 Press the lt M gt key short pressure repeatedly until the mea sured parameter pH or ORP is selected 4 Adjust the temperature of the solutions and measure the cur rent temperature if the measurement is made without a temper ature sensor 5 Calibrate or check the meter with the electrode ba76123e01 02 2013 49 Operation pHotoFlex pH 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
23. pH value Potentiometry Reset Resolution Slope Standard solution Temperature function Test sample The measurable potential of a symmetrical electrode the membrane of which is immersed in a solution with the pH of the nominal electrode zero point The asymmetry is part of the offset potential The ORP is caused by oxidizing or reducing substances dissolved in water if these substances become effective on an electrode surface e g a gold or platinum surface The pH value is a measure of the acidic or basic effect of an aqueous solution It corresponds to the negative decadic logarithm of the molal hydrogen ions activity divided by the unit of the molality The practical pH value is the value of a pH measurement Name of a measuring technique The signal depending on the mea sured parameter of the electrode is the electrical potential The elec trical current remains constant Restoring the original condition of all settings of a measuring system Smallest difference between two measured values that can be dis played by a meter The slope of a linear calibration function The standard solution is a solution where the measured value is known by definition It is used to calibrate a measuring system Name of a mathematical function expressing the temperature behav ior of a test sample a sensor or part of a sensor Designation of the test sample ready to be measured Normally a test sample is made by proces
24. pH value at which the electro motive force of the pH electrode at a specified temperature is zero Normally this is at 25 C The electromotive force U of the electrode is the measurable electro motive force of an electrode in a solution It equals the sum of all the galvanic voltages of the electrode Its dependency on the pH results in the electrode function which is characterized by the parameters slope and zero point The junction is a porous body in the housing wall of reference elec trodes or electrolyte bridges It forms the electrical contact between two solutions and makes electrolyte exchange more difficult The ex pression junction is also used for ground or junction less transitions The measured parameter is the physical dimension determined by measuring e g pH conductivity or DO concentration The measured value is the special value of a measured parameter to be determined It is given as a combination of the numerical value and unit e g 0 5 5 2 A 373 15 The measuring system comprises all the devices used for measuring e g meter and sensor In addition there is the cable and possibly an amplifier terminal strip and armature Molality Molality is the quantity in Mol of a dissolved substance in 1000 g sol vent MultiCal YSI name stating that a meter provides several pH calibration proce dures ba76123e01 02 2013 93 Lists pHotoFlex pH Offset potential ORP voltage
25. program By entering the program number or by using a barcode reader the stored method data is loaded You can look up an overview of the available methods in the photome try analysis manual and display it on the screen of the pHotoFlex9 pH see section 4 5 8 You can measure the following parameters with the pHotoFlex pH Concentration mg l e Transmission Absorbance 76123 01 02 2013 35 Operation pHotoFlex pH Preparatory activities 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 surface 2 For measurement place the pHotoFlex9 pH on a horizontal 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 e e Switching on or off the analysis timer Resetting the settings for photometric measurements The settings can be found in the Configuration Photometry menu To switch to the Configuration menu press the MENU key Settings Menu item Setting Description Measured parame Concentration Measured parameters in ter Transmission the Photometry measuring Absor
26. program ming 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 gt If the transmission failed the terminal program writes gt To erase user defined programs enter a command line according to the following scheme in the terminal program Erase all user defined Erase one user programs defined program Command line U 520 U 5211H Program No Example U 520 U 521 1 900 7 Enter the command line 8 Finish the command line with Enter The data is transmitted to the pHotoFlex pH The requested data is displayed on the terminal as the result After successful transmission the requested data is displayed on the terminal If the transmission failed the terminal program writes gt 76123 01 02 2013 73 Operation pHotoFlex pH Reading out user defined programs To read out user defined programs enter a command line according to the following scheme in the terminal program Read out all user defined programs Read out one user defined program Command line U 510 U 511 1 Program No Example U 510 9 Enter the command line U 511 1 900 10 Finish the command line with Enter The data is transmitted to the pHotoFlex pH The requested data is displayed on the terminal as the result After successful
27. transmission the terminal program writes gt If the transmission failed the terminal program writes gt 74 76123 01 02 2013 pHotoFlex pH Operation ba76123e01 02 2013 75 Operation pHotoFlex pH 76 76123 01 02 2013 pHotoFlex pH 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 rechargeable battery 5 1 1 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 bat tery compartment 1 Open the battery compartment Unscrew the two screws 1 on the underside of the meter Remove the lid of the battery compartment 2 2 If necessary take four old batteries out of the battery compart ment 3 Insert four batteries 3 in the battery compartment 4 Close the battery compartment and fix it with the screws 76123 01 02 2013 77 Maintenance cleaning disposal pHotoFlex pH i Dispose of used batteries according to the local regulations of your country End users within the European Union are obligated to return used bat teries even ecologically compatible ones to a collection point set up for recycling purposes Batteries are marked with the crossed out wast
28. val ue memory menu To switch to the Configuration menu press the lt MENU gt key 76123 01 02 2013 31 Operation pHotoFlex pH Settings functions Menu item Setting func tion Description Display Displays in pages all mea surement datasets that cor respond to the filter settings Further options Scroll through the datas ets with lt A gt VW Output the displayed da taset to the interface with lt PRT gt Quit the display with lt ESC gt 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 sever al minutes To terminate the process prematurely press lt ESC gt Data filter see section 4 7 2 Allows to set filter criteria in order to display and down load datasets to the inter face Delete Erases the entire contents of the measuring data mem ory independent of the filter settings Note All calibration data remains stored when performing this action All details on the subjects of memory and stored data is found in section 4 7 2 32 76123 01 02 2013 pHotoFlex pH Operation 4 4 2 Display In the Configuration System Display menu you set the display fea tures Switching on off the display illumination umination Display contrast Contrast
29. 01 02 2013 57 Operation pHotoFlex pH Continuing for two point calibration Cal type TEC 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 A W select Continue and press lt START EN TER The buffer is measured The measured value is checked for stability AutoRead pH amp ORP Calibration W Buffer value 10 01 BU 177mV Temperature 24 8 C Terminate AutoRead 12 Wait for the end of the AutoRead measurement or Terminate AutoRead with lt START ENTER gt and take over the calibration value The calibration display for the next buffer appears pH amp ORP Calibration W Buffer recognition TEC mmerse sensor in buffer 3 Exit with 2 point calibration 13 Fortwo point calibration select Exit with 2 point calibration with A W and confirm with lt START ENTER gt The calibration is completed as a two point calibration The new calibration values are displayed as an informative message W You have the following options Accept the new calibration values with lt START ENTER gt Subsequently the calibration record is displayed and output to the interface at the same time To switch to the measured value display
30. 4 7 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 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 8 Transmitting data RS 232 interface Via the RS 232 interface you can transmit data to a PC 4 8 1 Connecting a PC Connect the interface to the devices via the AK540 B PC cable The RS232 interface is not galvanically isolated When connecting an earthed PC measurements cannot be performed in earthed media as incorrect values would result Set up the following transmission data on the PC Baud rate can be selected from 1200 2400 4800 9600 19200 The baud rate must agree with the baud rate set on the PC Handshake RTS CTS PC only Parity none Data bits 8 Stop bits 1s AW 1 RTS 2RxD 9 3 TxD Ve 9 4 DTR 5 SG RS 232 6 CTS REC 64 76123 01 02 2013 pHotoFlex pH Operation 4 8 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 pHotoFlex9 pH and PC You can set the following values for the baud rate on the pH
31. 9 Using lt START ENTER gt or STO confirm Store The dataset is stored The instrument switches to the mea sured value display A measurement dataset is stored quickly by twice pressing STO It 1 is stored with the ID last set If the storage is full You can erase the entire storage see section 4 7 5 or overwrite the oldest dataset with the next storing procedure A security prompt appears before a dataset is overwritten ba76123e01 02 2013 61 Operation pHotoFlex pH 4 7 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 To switch to the Configuration menu press the MENU key Data filter Menu item Setting function Description Filter No filter ID PROG Date ID PROG ID Date PROG Date ID PROG Date Filter criteria Data filter switched off Selection according to ID number Selection according to pro gram Selection according to pe riod Selection according to pro gram and ID number Selection according to pe riod and ID number Selection according to pro gram and date Selection according to ID program and date PROG Date Entry of filter criteria The
32. DIN Automatic pH calibration with buffer solutions pre pared according to NIST or DIN 19266 pH pH value S Second S Slope internat k SELV Safety Extra Low Voltage Sip Slope determined with calibration TEC Automatic pH calibration with YSI technical buffer solutions according to DIN 19267 U Voltage 92 76123 01 02 2013 pHotoFlex pH Lists Adjusting Asymmetry AutoRange AutoRead Calibration Electrode zero point Electromotive force of an electrode Junction Measured parameter Measured value Measuring system Glossary To manipulate a measuring system so that the relevant value e g the displayed value differs as little as possible from the correct value ora value that is regarded as correct or that the difference remains within the tolerance Designation for the offset potential of a pH electrode It is the measur able potential of a symmetrical electrode the membrane of which is immersed in a solution with the pH of the nominal electrode zero point YSI electrodes pH 7 Name of the automatic selection of the measuring range YSI name for a function to check the stability of the measured value Comparing the value from a measuring system e g the displayed val ue to the correct value or a value that is regarded as correct Often this expression is also used when the measuring system is adjusted at the same time see adjusting The zero point of a pH electrode is the
33. NTER gt 4 Select the wavelength with lt A gt W and confirm with lt START ENTER gt Photometry Absorbance li nsert sample li Start measurement with START 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 lt START ENTER gt The measurement result is displayed when the measurement is finished ba76123e01 02 2013 43 Operation pHotoFlex pH Photometry Absorbance 0 532 610 nm 01 02 05 15 12 4 5 7 Zero adjustment The zero adjustment i e measuring and storing the absorbance of a cell filled with water is necessary after the meter is switched on Additionally we recommend to carry out a zero adjustment if the ambi ent temperature has changed Only perform the zero adjustment against distilled water in an optically perfect cell The zero adjustment must be performed separately for each cell type 1 Press the lt M gt key long pressure repeatedly until the Pho tometry measuring mode is selected 2 Press the M key short pressure repeatedly until the mea sured variable Concentration is selected 3 Press the lt CAL ZERO gt key The menu for adjustment measurements opens up Photometry Adjustment Measure blank value Delete blank value 4 Using A lt W gt and lt START ENTER3 gt select and start the Zero adjust functi
34. OPERATIONS MANUAL ba76123e01 02 2013 poHotoFlex pH Handheld colorimeter HEE EE EE ji EE EE EE EE EE m L ammumum a xylem brand pHotoFlex pH il For the most recent version of the manual please visit www ysi com Contact YSI 1725 Brannum Lane Yellow Springs OH 45387 USA Tel 1 937 767 7241 800 765 4974 Email environmental Q ysi com Internet www ysi com Copyright 2013 Xylem Inc ba76123e01 02 2013 pHotoFlex pH Contents pHotoFlex pH Contents 1 OVGIVIGW canteen eae a 7 17 General features 444 7 1 2 Keypad ae oid 8 Td UDISDIG obser Pom eee p sees 10 1 4 10 1 5 LabStation optional 10 2 Safety cus ous xa E e Eos E DO R ce arci ci OR 13 2 1 Safety information 13 2 1 4 Safety information the operating manual 13 21 2 Safety signs on the meter 13 2 1 8 Further documents providing safety information 13 2 2 Safe Operation sas DA A Rea y eas 14 2 2 4 Authorized use 14 2 2 2 Requirements for safe operation 14 2 243 Unauthorized use 14 3 Commissioning 15 3 4 Scope of delivery
35. alysis timer function is switched on or off in the Configuration Photometry Analysis timer menu This setting generally applies to all measurements with methods ac cording to analysis specification 4 5 10 Timer When measuring according to analysis specifications waiting periods often have to be kept between individual steps of the method With the Timer function you manually set a time interval If you want to be automatically reminded of the given time interval use the Analysis timer function see section 4 5 9 The timer is displayed in the measured value display It always displays the remaining time of the adjusted time interval When the adjusted time interval has expired the timer indicates 00 00 00 and an acoustic signal sounds The Timer function is started in the Configuration Timer menu by en tering a time interval 76123 01 02 2013 47 Operation pHotoFlex pH Entering the factor of the dilution 4 5 11 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 Thus a valid measure ment is possible After entering the factor for the dilution the meter converts the concen tration to that of the undiluted sample The display then indicates the measured value of th
36. anguage Deutsch Select the language see English section 4 3 3 Francais Espanol Store Display Memory and database RS232 down functions load see section 4 7 2 Data filter Delete Display Illumination Switch on off the display Brightness section 4 4 2 Reset Resets all system settings to default see section 4 9 1 Interface Baud rate Baud rate of the data in Output format terface see section 4 4 3 Continue Time Settings of time and date Date time Date see section 4 3 4 Date format 30 ba76123e01 02 2013 pHotoFlex pH Operation 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 fora 15 20 24h specified period of time Switchoff time This saves the batteries or re chargeable battery Continue On Switch on off the beep on Beep Off keystroke 4 4 1 Measured value memory In the Measured value memory menu you find functions to display and edit the stored measurement datasets Display the measurement datsets on the screen Display Download the measurement datsets to the RS232 interface RS232 download Set up filter rules for the stored measurement datsets Data filter Erase all stored measurement datsets Delete e Information on the number of occupied memory locations The settings can be found in the Configuration System Measured
37. anguage as necessary see section 4 3 3 Set the date and time as necessary see section 4 3 4 sections of this operating manual you will quickly become familiar with When you set the language date and time according to the mentioned i the simple operation of the pHotoFlex9 pH 18 76123 01 02 2013 pHotoFlex pH Operation Switching on Switching off Automatic switchoff 4 Operation 4 1 Switching on the meter Press the lt ON OFF gt 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 B pHotoFlex V 0 24 After a few seconds the meter automatically switches to the measuring mode and measured parameter used last The measured value display appears here e g measuring mode Pho tometry Photometry Concentration li Select program with lt PROG gt 01 02 05 15 12 With M long pressure change the measuring mode With M short pressure toggle between the different measured pa rameters in the selected measuring mode Press the lt ON OFF gt key The meter has an automatic switchoff function in order to save the bat teries or rechargeable battery see section 4 4 The automatic swi tchoff switches the meter off if no key is pressed for an adjustable period The automatic switchoff is not active
38. ayed 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 6 Carrying out the TEC and NIST DIN calibration procedures The two calibration procedures only differ in the usage of different buf fer sets see section 4 6 5 Make sure the Cal type is correctly set in the pH amp ORP Calibration menu see section 4 6 4 For this procedure use any one two or three YSI technical buffer solu tions in ascending or descending order The TEC calibration is described below With the N ST DIN calibration the NIST DIN buffer recognition and different nominal buffer values are displayed Apart from that the procedure is identical The TEC calibration for pH 10 01 is optimized for the YSI technical buf i fer solution TEP 10 Trace or TPL 10 Trace Other buffer solutions can lead to an erroneous calibration The correct buffer solutions are given in the YSI catalog or on the Internet 1 Press the M key short pressure repeatedly until the mea sured parameter pH or ORP is selected Start the calibration with lt CAL ZERO gt The calibration display appears 2 pH amp ORP Calibration W Buffer recognition TEC mmerse sensor in buffer 1 3 Immerse the electrode in buffer solution 1 4 If the Set temperature menu item appears measure and enter the temperature of t
39. bance mode Programs Display all programs with the corresponding pro gram data see section 4 5 8 Dilution Set the dilution factor see section 4 5 11 Analysis timer On Switch on off the analysis Off timer see section 4 5 9 Reset Reset all settings for the Photometry measuring mode see section 4 9 3 36 76123 01 02 2013 pHotoFlex pH Operation i 4 5 3 Measuring the concentration 1 Press the M key long pressure repeatedly until the Pho tometry measuring mode is selected 2 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 pH concentration measurements Photometry Concentration Photometry Concentration Select program Select program with lt PROG gt with lt PROG gt or with 4 V NH4 N 16mm 0 20 6 51 mg l 01 02 05 15 12 01 02 05 15 12 From the second concentration measurement the data of the program last used is automatically displayed here With A W you can quickly switch between the ten programs last used To select a program you can also read in the program number of an analysis specification with a barcode reader see section 8 2 The fol lowing step 3 is then skipped You can directly start measurement The program number of the test is given in the analysis specification on the l
40. calibration Calibration record of a pH electrode at the end of a calibration procedure is transmitted automatically With the lt PRT gt key you output the data that is being shown on the dis play to the interface displayed measured values stored measurement datsets calibration record 76123 01 02 2013 67 Operation pHotoFlex pH 4 9 Reset You can reset initialize all system and measurement settings 4 9 1 Resetting the system settings With the System Reset function all resettable settings are reset Settings for pH amp ORP see section 4 9 3 Settings for Photometry see section 4 9 2 System settings System setting Default settings Baud rate 4800 Baud Output format ASCII Illumination Auto off Contrast 50 Brightness 50 Switchoff time 30 min Beep On Measuring mode Photometry 68 76123 01 02 2013 pHotoFlex pH Operation 4 9 2 Resetting the photometry settings With the Photometry Reset function all photometry settings are reset Setting Default settings PROG 0 Cell size 16 mm Measured parameter Concentration Wavelength 436 nm Blank values all erased 4 9 3 Resetting the pH settings 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 settin
41. ding to the local regulations of your country see section 5 1 1 Meter At the end of its operational lifetime the meter must be returned to the disposal or return system statutory in your country If you have any questions please contact your supplier 80 ba76123e01 02 2013 pHotoFlex pH What to do if 6 What to do if 6 1 General errors Display LoBat Cause Remedy The batteries or rechargeable battery are largely depleted Instrument does not Cause Insert new batteries Charge the rechargeable battery see section 3 2 Remedy react to keystroke Software error Operating condition undefined or EMC load unallowed RS232 interface Cause Processor reset Press the lt START ENTER gt and lt PRT gt key simultaneously Remedy does not react Software error Operating condition undefined or EMC load unallowed Error message Cause Processor reset Press the lt START ENTER gt and lt PRT gt key simultaneously Remedy Error 0 8 16 16384 nstrument error Repeat measurement Meter defective send meter to YSI for repair and quote the error number 76123 01 02 2013 81 What to do if pHotoFlex pH Measuring range undercut or exceeded Obviously incorrect measured values Measuring range undercut or exceeded 6 2 Photometry Cause Remedy Program not suitable
42. e container symbol Therefore they may not be disposed with the domestic waste 5 1 2 Retrofitting the rechargeable battery NOTE Use original YSI rechargeable battery only Together with the power pack the rechargeable battery is available as an accessory see section 8 1 1 Open the battery compartment Unscrew the two screws 1 on the underside of the meter Remove the lid of the battery compartment 2 78 76123 01 02 2013 pHotoFlex pH Maintenance cleaning disposal 2 If necessary take four old batteries out of the battery compartment 3 Connect the cable of the rechargeable battery with the socket 3 on the bottom of the battery compartment and insert the re chargeable battery in the battery compartment 4 Close the battery compartment and fix it with the screws Dispose of used batteries according to the local regulations of your 1 country End users within the European Union are obligated to return used bat teries even ecologically compatible ones to a collection point set up for recycling purposes Batteries are marked with the crossed out waste container symbol Therefore they may not be disposed with the domestic waste 5 2 Cleaning Occasionally wipe the outside of the measuring instrument with a damp lint free cloth Disinfect the housing with isopropanol as re quired NOTE The housing parts are made of plastic polyurethane ABS and PMMA
43. e display 22 PH e da d aan 53 Measurement dataset e iela 60 d c rer Measuring ORP voltage 51 C p PE sea sine E es 50 Calibration Measuring menu pec e 53 DE VORE AOTER 32 52 Calibration points Measuring the absorbance transmission 43 k Sev dena yin ka 54 Memo DB 31 Cell Menus navigation 23 SOIT NT RM RT NE 20 Messages Leda bue E Ceo pre meade hine neke be diae 24 Cleaning itu irem EQ sa 79 Method patema Ea 35 Concentration measurement 37 Connecting a sensor 10 N DIT ITe Te 22 D 62 Date and time Operating modes 34 Delivery condition P measuring parameters 69 pH calibration evaluation 55 system settings 68 69 Photometric determinations 35 Diluted samples nM 15 eee emet EO droite 48 Program de er eem se Or E dens rusos Awe s 35 arde 10 33 Programs gt 46 Display illumination 10
44. e result of the standard adjustment is dis played and stored As the result the measured value and the adjustment in 96 or Error is displayed Measure standard 304 Cu 1 TP 10 mm E 0 600 mg l Cu 2 000 93 2 10 Confirm the result with lt START ENTER gt The standard adjustment is completed The meter is ready to measure or Discard the result with lt ESC gt Subsequently carry out a new standard adjustment If a standard adjustment is stored for a program the standard adjust ment is automatically used for measurement The usage of the stan dard adjustment is documented together with the measured value and indicated in the measured value display with Cal 42 76123 01 02 2013 pHotoFlex pH Operation 4 5 6 Measuring the absorbance transmission lowing example as it operates in exactly the same way as the absor bance measurement The result of the measurement is displayed in Transmission il The transmission measurement is not described separately in the fol 1 Press the M key long pressure repeatedly until the Pho tometry measuring mode is selected 2 Press the M key short pressure repeatedly until the mea sured variable Absorbance or Transmission is selected Photometry Absorbance Select cell with 4 Y 610 nm 01 02 05 15 12 Select the cell diameter with A W and confirm with lt START E
45. e undiluted sample 1 Select the program for which a dilution factor is to be entered 2 Open the Configuration Photometry Dilution menu The current factor of the dilution is displayed Dilution Water sample 3 Open the display for the entry of numerals with lt START EN TER gt 4 Enter the factor of the dilution with the number keys The factor has to be a whole number between 0 99 5 Confirm the factor with lt START ENTER gt 6 Exit the Dilution menu with lt ESC gt For the following measurements with the selected program the concentration of the undiluted sampled is displayed as the measurement result The entered dilution factor is only valid for the selected program The dilution factor is erased if the meter is switched off a different program number is selected the factor 0 is entered in the Dilution menu If a dilution factor is active itis indicated on the display during measure ment in the form x 1 48 76123 01 02 2013 pHotoFlex pH Operation i Temperature measurement Preparatory activities 4 6 pH value ORP voltage 4 6 1 General information You can measure the following variables pH value e ORP mV The RS232 interface is not galvanically isolated When connecting an earthed PC measurements cannot be performed in earthed media as incorrect values would result For reproducible pH measurements it is
46. easurements without temperature sensor only Temperature unit Degrees Celsius Degrees Fahrenheit Reset Reset all settings for the pH amp ORP measuring mode see section 4 9 3 52 76123 01 02 2013 pHotoFlex pH 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 Thus you should calibrate at regular intervals When to calibrate After connecting another electrode When the sensor symbol flashes after the calibration interval has expired after voltage interruption e g empty batteries empty rechargeable battery Buffer sets for You can use the buffer sets quoted in the table for an automatic calibra calibration tion The pH values are valid for the specified temperature values The temperature dependence of the pH values is taken into account during calibration Buffer set Name on the pH values at display 25 YSI technical buffer solutions TEC 2 00 4 01 7 00 10 01 NIST DIN buffer solutions NIST DIN 1 679 4 006 6 865 9 180 12 454 The buffers are selected in the Configuration pH amp ORP Cal type 4 menu see section 4 6 4 ba76123e01 02 2013 53 Operation pHotoFlex pH Calibration points
47. elements display Operating modes navigation Measured value display For optimum measurement results the cell must always be covered by the external light cover Otherwise external light can falsify the mea surement result 4 3 General operating principles This section contains basic information on the operation of the pHotoFlex9 pH 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 pHotoFlex9 pH and the nav igation through menus and functions can be found in section 4 3 1 and section 4 3 2 4 3 1 Operating modes The instrument has the following operating modes Measurement The display indicates measurement data in the measured value dis play Calibration The display indicates a calibration process with calibration informa tion or a process to carry out a zero adjustment Data transmission The meter transmits measuring datasets or calibration records to the serial interface Configuration The display indicates a menu with further menus settings and func tions 4 3 2 Navigation In the measured value display you can 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 open the menu with MENU switch to the superordinate Start menu with lt ESC gt 22 76123 01 02 2013
48. er may only be supplied with power by the energy sources mentioned in this operating manual The meter may only be operated under the environmental conditions mentioned in this operating manual The meter may only be opened if this is explicitly described in this operating manual example Inserting the batteries 2 2 3 Unauthorized use The meter must not be put into operation if itis visibly damaged e g after being transported it was stored under adverse conditions for a lengthy period of time storing conditions see chapter 7 TECHNICAL DATA 14 76123 01 02 2013 pHotoFlex pH Commissioning Charging time of the rechargeable battery i 3 Commissioning 3 4 Scope of delivery Handheld meter pHotoFlex pH 4 batteries 1 5 V type AA in the battery compartment 1 empty cell 16 mm 2 empty cells 28 mm Microfiber cloth to clean the meter Quick start guide English Key overview Program list CD ROM with detailed operating manual photometry analysis manual with analysis specifications software to program user defined methods Optional Rechargeable battery Optional LabStation with LSdata PC software rechargeable battery and universal power pack The optional parts of the scope of delivery are available as accessories see section 8 1 3 2 Power supply 3 2 1 General information You can operate the meter either with batteries rechargeable batteries or
49. evaluate the measurement results How to carry out the method up to the photometric measurement is de scribed in the analysis specification The pHotoFlex pH contains a database with methods programs Furthermore user defined methods can be entered in the database as well Program In the pHotoFlex9 pH methods with the relevant method data are stored as programs Programs are called up via the assigned program number Test set test A test set contains all reagents that are required for the photometric determination of the sample according to the analysis specification Zero adjustment Adjusting a photometer with a water filled cell The zero adjustment applies to measuring all measured parameters concentration absorbance transmission of a photometer ba76123e01 02 2013 95 Lists pHotoFlex pH 96 76123 01 02 2013 pHotoFlex pH Index 10 Index A Analysis specification 35 Initial commissioning 18 Analysis timer soc eerte iir Tr Er Pepe dE sae 47 Initialization ata 68 Asymmetry of the pH electrode 53 Interface en 33 Automatic switchoff 16 19 AutoRead K d pM MC 2 Key FUNCIONS vec beret Parka bealleyad ka 8 pu saya N a We M E 25 22 2 Measured valu
50. fo texts e g messages notes or instruc tions Set temperature 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 4 3 3 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 pH During initial commissioning the language is set in the menu Configuration System Language 1 In the measured value display Open the Configuration menu with MENU The instrument is in the configuration mode 2 Select the System menu with A WV The current selection is highlighted as white text on a black background 3 Open the System menu with lt START ENTER gt English 24 76123 01 02 2013 pHotoFlex pH Operation 4 Select the Language menu with lt A gt WV The current selection is highlighted as white text on a black background 5 Open the setting of the Language with lt START ENTER gt System Language Store Display Reset Interface Continue 6 Select the required language with lt A gt lt W gt 7 Confirm the setting with lt START ENTER gt The setting is active The menu is displayed in the selected lan guage 8 To make further settings switch to t
51. gs with the Reset function Setting Default settings Cal type TEC Calibration interval 7d Measured parameter pH amp ORP Asymmetry Asy 0 mV Slope Sip 59 16 mV pH Temperature manual 25 C Temperature C ba76123e01 69 Operation pHotoFlex pH 4 10 Meter information The following meter information is listed in the Configuration Info menu Model designation e Software version Version number s of the stored program data Series number of the meter Info E Model pHotoFlex Software V 0 35 Prog V 0 07 Ser no 04280003 4 11 Software update With a software update you obtain the current software with all new pro grams and method data see section 11 A software update comprises new instrument software new programs methods revisions of existing methods The current software version can be found on the Internet under WWW YSl com The proceeding for updating the software can be found in the appendix see section 11 70 76123 01 02 2013 pHotoFlex pH Operation 4 12 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 pH Administration of the method data can be carried o
52. he buffer manually measurement without temperature sensor 56 76123 01 02 2013 pHotoFlex pH Operation 5 Using A lt gt select Continue and press lt START EN TER gt The buffer is measured The measured value is checked for stability AutoRead pH amp ORP Calibration Buffer value 7 00 BU 3mv Temperature 24 8 C O Terminate AutoRead 6 Wait for the end of the AutoRead measurement or accept the calibration value with lt START ENTER gt The calibration display for the next buffer appears pH amp ORP Calibration W Buffer recognition TEC Immerse sensor in buffer 2 Exit with one point calibration 7 For single point calibration select Exit with one point calibra tion with A lt W gt and confirm with lt START ENTER gt The calibration is completed as a single point calibration The new calibration values are displayed as an informative message NM You have the following options Accept the new calibration values with lt START ENTER gt Subsequently the calibration record is displayed and output to the interface at the same time To switch to the measured value display without accepting the new calibration values press M short pressure or lt ESC gt 59 16 mV pH at 25 C and determines the asymmetry of the elec For single point calibration the instrument uses the Nernst slope i trode ba76123e
53. he next higher menu level with lt ESC gt or Switch to the measured value display with M short pres Sure The instrument is in the measurement mode 4 3 4 Navigation example 2 Setting the date and time The meter has a clock with a date function The date and time are indi cated in the status line of the measured value display When storing measured values and calibrating the current date and time are auto matically stored as well Numerals are generally entered via the number keys The correct setting of the date and time and date format is important for the following functions and displays Current date and time Calibration date Identification of stored measured values Therefore check the time at regular intervals 76123 01 02 2013 25 pHotoFlex pH Operation After a fall of the supply voltage empty batteries or rechargeable bat li tery 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 ad yy 1 In the measured value display Open the Configuration menu with lt MENU gt The instrument is in the configuration mode 2 Select and confirm the System Continue Date time menu with lt A gt W and lt START ENTER gt Date time Time 14 53 40 Date 30 10 03 Date format dd m
54. if the power is supplied by the power pack optional if the power is supplied by the LabStation optional e if the Timer or Analysis timer function is on 76123 01 02 2013 19 Operation pHotoFlex pH Display illumination During operation with batteries or rechargeable battery the meter auto with battery and matically switches off the display illumination if no key is pressed for rechargeable battery 30 seconds The illumination is switched on again with the next key operation stroke 4 2 Inserting a cell To be able to insert cells in the pHotoFlex pH the cell shaft has to be prepared to take in a cell 1 Push the dust cover 1 upward The cell shaft for 28 mm cells is open Insert a 28 mm cell see below Insert a 16 mm cell see page 20 Wong 2 Insert the cell so that it is positioned on the bottom of the cell shaft The cell is ready to be measured Inserting a 16 mm cell 1 Put the fold out cell shaft 2 in an upright position until it locks into place 20 76123 01 02 2013 pHotoFlex pH Operation 2 Pull up the height adapter 3 The cell shaft is extended 4 Insert the 16 mm cell marking points forward so that it is po sitioned on the bottom of the cell shaft 5 Close the external light cover 4 The cell is ready to be measured ba76123e01 02 2013 21 Operation pHotoFlex pH i Operating
55. ions mentioned are not taken 2 1 2 Safety signs on the meter Note all labels information signs and safety symbols on the meter and in the battery compartment A warning symbol triangle without text refers to safety information in this operating manual 2 1 3 Further documents providing safety information Observe the safety datasheets of the test reagents when working with photometric test sets 76123 01 02 2013 13 Safety pHotoFlex pH 2 2 Safe operation CAUTION Danger of eye damage by visible and invisible LED radiation In the cell shaft there are light emitting diodes LED of the 1M class Do not look at the radiation using optical instruments With normal authorized use there is no hazard 2 2 1 Authorized use This meter is authorized exclusively for the following measurements Analysis of substances in water and aqueous solutions using round cells Concentration measurement Absorbance and transmission measurement The fields of application are mobile use and use in the laboratory Only the operation and running of the meter according to the instructions and technical specifications given in this operating manual is authorized see chapter 7 TECHNICAL DATA Any other use is considered unauthor ized 2 2 2 Requirements for safe operation Note the following points for safe operation The meter may only be operated according to the authorized use specified above The met
56. ist of available programs and on the packing of some tests un der the barcode 3 Open the Program number display with lt PROG gt enter the required program number with the number keys and confirm with lt START ENTER gt or from the second concentration measurement Select a program out of the last ten programs with A W The program data is displayed If a program number is selected that requires a measured blank value the menu automatically guides to the blank value measurement 76123 01 02 2013 37 Operation pHotoFlex pH Photometry Concentration li Insert sample Start measurement With START 1 A5 25 MC NH4 N 16mm 0 20 6 51 mg l 01 02 05 15 12 4 Insert the cell see section 4 2 5 Start the measurement with lt START ENTER gt Measurement is started The result is displayed Photometry Concentration BV A blank value measured by the user is used 0 74 mg l 1 A5 25 MC NH4 N 16mm 0 20 6 51 mg l 01 02 05 15 12 4 5 4 Blank value reagent blank value A blank value is required for every concentration measurement For some programs methods for concentration measurement the blank values are already stored in the meter They are used automati cally For all other programs the blank value has to be determined sep arately before the first measurement Each stored reagent blank value can be replaced by a blank value de termi
57. lick the OK button N Then follow the instructions of the program The programming procedure takes approx 5 minutes A final message appears after the successful programming procedure The firmware update is completed with this 76123 01 02 2013 99 Firmware update pHotoFlex pH 5 Disconnect the meter from the PC The instrument is ready for operation After switching the meter off and on again you can check on the start display whether the meter has taken over the new software version 100 76123 01 02 2013 pHotoFlex pH Contact Information 12 Contact Information 12 1 Ordering amp Technical Support Telephone 800 897 4151 937 767 7241 Monday through Friday 8 00 AM to 5 00 PM ET Fax 937 767 1058 Email environmental Q ysi com Mail YSI Incorporated 1725 Brannum Lane Yellow Springs OH 45387 USA Internet www ysi com When placing an order please have the following information available YSI account number if available Name and Phone Number Model number or brief description Billing and shipping address Quantity Purchase Order or Credit Card 12 2 Service Information YSI has authorized service centers throughout the United States and Internationally For the nearest service center information please visit www ysi com and click Support or contact YSI Technical Support directly at 800 897 4151 When returning a product for service include the
58. llowing applies Measured Reproducibility Response time parameter ORP voltage better than 1 mV gt 30 seconds 4 6 4 Settings for pH and ORP measurements For pH and ORP measurements the following settings are available in the Configuration pH amp ORP menu e Measured parameter Calibration record display Selecting the calibration type Entering the Calibration interval Selecting the Unit for slope Selecting the Temperature unit Reset 76123 01 02 2013 51 Operation pHotoFlex pH Settings functions The settings can be found in the Configuration pH amp ORP menu To switch to the Configuration menu press the lt MENU gt key Menu item Possible Description setting Measured parameter pH amp mV Calibration Displays the calibration re Calibration record cord of the last calibration Calibration TEC Buffer sets to be used for Cal type NIST DIN pH calibration For details see section 4 6 5 Calibration 1 999d Calibration interval for the Calibration interval pH electrode in days The meter reminds you to calibrate regularly by the flashing sensor symbol in the measured value dis play Calibration mV pH Unit of the slope Unit for slope 96 The 96 display refers to the Nernst slope of 59 16 mV pH 100 x de termined slope Nernst slope Man temperature 20 130 Entry of the manually de termined temperature For m
59. m yy Select and confirm the Time menu with A lt W gt and lt START ENTER gt A display for the entry of numerals with the number keys opens up Time Enter the time using the number keys The digit to be changed is displayed underlined 4 In the case of wrong entries you can cancel the procedure with li lt ESC gt After canceling with lt 5 gt it is possible to enter all digits once again The new digits are only taken over by confirming with lt START ENTER gt Confirm the setting with lt START ENTER gt The time is set 5 26 76123 01 02 2013 pHotoFlex pH Operation 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 lt ESC gt or Switch to the measured value display with lt M gt short pres sure The instrument is in the measurement mode 76123 01 02 2013 27 Operation pHotoFlex pH 4 3 5 Menu overview Photometry Measured parameter Concentration Transmission Absorbance Programs Dilution Analysis timer On Off Reset pH amp ORP Measured parameter pH ORP Calibration Calibration re cord Cal type TEC NIST DIN Calibration inter 1 999 d val Unit for slope mV pH 26 Man temperature 20 130
60. ned by the user You will find more information on blank values in the photometry anal ysis manual A blank value is always stored for the program that has just been called up It remains stored until it is erased menu item Delete blank value or overwritten The Heset function erases all blank values measured by the user and restores the blank values stored in the factory If a blank value measured by the user is stored for a program this blank value is used for measurement The usage of the blank value mea sured by the user is documented and also indicated in the measured value display 38 76123 01 02 2013 pHotoFlex pH Operation Measuring the blank value i 1 Press the M key long pressure repeatedly until the Pho tometry measuring mode is selected 2 Press the M key short pressure repeatedly until the mea sured variable Concentration is selected 3 Select a program with lt PROG gt as necessary The following measurement of the blank value applies only to the se lected program If no program is selected the message No program selected appears on the display 4 Open the adjustment menu with lt CAL ZERO gt Photometry Adjustment Zero adjust Measure blank value Delete blank value 5 Using A W and START ENTER select and start the Measure blank value function The menu guided blank value measurement starts Follow the instructi
61. nts the zero measurement is retained even after switching the pHotoFlex pH off and on again You can connect a bar code reader for the simplified calling up of programs The LSdata software included serves to easily enter user defined programs Operation with power pack and rechargeable battery included in the scope of delivery of the LabStation The rechargeable battery in the pHotoFlex9 pH is automatically charged as soon as the meter is placed in the LabStation 76123 01 02 2013 11 Overview pHotoFlex pH 12 ba76123e01 02 2013 pHotoFlex pH Safety 2 Safety 2 1 Safety information 2 1 1 Safety information in the operating manual This operating manual provides important information on the safe oper ation of the meter Read this operating manual thoroughly and make yourself familiar with the meter before putting it into operation or work ing with it The operating manual must be kept in the vicinity of the meter so you can always find the information you need Important safety instructions are highlighted in this operating manual They are indicated by the warning symbol triangle in the left column The signal word e g Caution indicates the level of danger CAUTION indicates a possibly dangerous situation that can lead to slight reversible injury if the safety instruction is not followed NOTE indicates a possibly dangerous situation where goods might be damaged if the act
62. on The menu guided zero adjustment starts Follow the instructions on the display 44 76123 01 02 2013 pHotoFlex pH Operation Zero adjust li Insert zero cell dist water Start measurement 5 Insert the cell see section 4 2 6 Set another cell with lt A gt W and START ENTER as nec essary 7 Start the measurement of the zero adjustment with lt START ENTER After measuring the result of the zero adjustment is displayed and stored Zero adjust successful successful zero adjustment or Calibration error zero adjustment not successful is displayed as the result The zero adjustment is completed Calibration error was displayed as the calibration result a note au tomatically reminds you of another zero adjustment before the next measurement Measuring is not possible without a valid zero adjustment 8 Confirm the result with lt START ENTER gt The zero adjustment is completed The meter is ready to measure 76123 01 02 2013 45 Operation pHotoFlex pH Displaying program data Updating programs User defined programs 4 5 8 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 pro gram Programs 1
63. on Time hh mm ss Enter the time with the number keys Date Enter the date with the number keys Date format dd mm yy Settings of time and date 34 76123 01 02 2013 pHotoFlex pH Operation 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 measure ment At the same time possible disturbing factors have to be exclud ed Before measurement the sample has to be pretreated in order to bring the substance to be determined into the form that is suitable for mea surement 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 g a di gestion The chemicals required in the analysis specification are available as test sets Suitable analysis specifications for test sets can be found in the pho tometry analysis manual on CD ROM There you will also find further instructions on handling chemicals and on how to proceed when applying the analysis specifications Methods and the corresponding method data for many test sets are stored as programs in the pHotoFlex9 pH A program number is as signed to each
64. ons on the display Measure blank value W 2 A5 25 MC Cell 16 mm li nsert blank sample Start measurement 6 Insert a cell with blank sample see section 4 2 7 Start the measurement of the blank value with lt START EN TER After measuring the result of the blank value measurement is displayed and stored The result is displayed as Blank value measurement suc cessful or Blank value measurement erroneous 76123 01 02 2013 39 Operation pHotoFlex pH Measure blank value 2 A5 25 E Cell 16 mm Absorbance 0 301 Blank value surement successful 8 Confirm the result with lt START ENTER gt The blank value measurement is completed The meter is ready to measure Or Discard the result with lt ESC gt Subsequently carry out a new blank value measurement 40 76123 01 02 2013 pHotoFlex pH Operation Standard adjustment 1 4 5 5 Standard adjustment user calibration With some of the programs methods for concentration measurement you can optimize the calibration curve stored in the meter with the aid of the Standard adjustment function A standard adjustment is only valid if the deviation compared to the original calibration is no more than 30 A standard adjustment is always stored for the program that is pres ently called up A standard adjustment is only deleted if a new standard adju
65. orage locations for measurement datsets You can transmit measured values datasets to the data storage with the lt STO gt 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 dis played the System Measured value memory menu A complete dataset consists of e Date time ID number ID e and the following measurement data depending on the selected measuring mode Measuring Measurement data mode Photometry Program number Measured value Citation form Use of a blank value BV Dilution x 1 pH amp Measured value pH mV Measured temperature value C F AutoRead info AR AH appears with the measured value if the Au toRead criterion was met while storing stable measured value Otherwise the AR display is missing 60 76123 01 02 2013 pHotoFlex pH Operation 4 7 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 STO key The Store display appears Store 996 free S W 02 02 2005 11 24 16 0 00 mg l PO4 P BV PROG 1 ID Store ID 1 2 Using A VW lt START ENTER gt and the number keys change and confirm the ID number D as necessary 0 99
66. orbance 0 200 2 000 Transmission 1 150 100 1 00 9 99 0 01 10 0 150 0 1 76123 01 02 2013 87 Technical data pHotoFlex pH Measuring ranges resolution Manual temperature input Accuracy 1 digit 7 3 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 Variable Range Increment Tmanua C 20 100 1 Variable Accuracy Temperature of the test sample pH 0 01 15 35 U mV 1 15 C 35 C T C 0 3 0 55 T F 0 54 0 C 55 when measuring a range of 2 pH around a calibration point 88 76123 01 02 2013 pHotoFlex pH Accessories options PC 8 Accessories options 8 1 Accessories Description Model Order no LabStation with LSdata PC soft LS Flex 430 251 301Y ware rechargeable battery and uni versal power pack Rechargeable battery for pHotoFlex RB Flex 430 251 300Y 8 1 1 Connection cable You can connect a PC to the pHotoFlex pH in one of the following ways Description Model Order no Connection PC pHotoFlex pH Cable AK 540 B 902 842Y USB adapter Ada USB 902 881Y for USB connection on PC Connection PC LabStation Zero modem cable AK Labor
67. otoFlex pH 1200 2400 4800 9600 19200 The baud rate is selected in the menu Configuration System Inter face Baud rate 4 8 3 Selecting the output format of datasets For downloading data to the interface you can select the output format It is selected in the menu Configuration System Interface Output format The ASCII output format delivers formatted datasets The CSV output format delivers datasets separated by Output format ASCII pHotoFlex Ser no 12345678 31 10 04 09 56 20 ID 1 10 01 pH AR 25 9C pHotoFlex Ser no 12345678 31 10 04 15 48 08 ID 1 PROG 2 1 1 mg l Pb BV 9 1 ba76123e01 02 2013 65 Operation pHotoFlex pH Output format CSV 45 6 8 11 a 4 0 01 12 11 14 18 07 1 81 02 BV 2 1 166 mg 1 VALID 14 03 12 11 07 41 51 3 24 224 557 nm VALID oa ji 12 13 Data Description 1 No Current number of the storage location or 0 during output from mea sured value display 2 Date Date of storing 3 Time Time of storing 4 ID adjusted ID 5 Program number Only for the measured parameter Concentration 6 Citation form Only for the measured parameter Concentration 7 AR Measuring mode pH amp ORP AutoRead BV Measured parameter Concentration Blank value 8 Dilution Only for the measured parameter Concentration 9 Measured value Measured value or
68. pHotoFlex pH Operation Menus and dialogs The menus for settings and dialogs in courses contain further sub menus The selection is made with the lt A gt lt W gt keys The current selection is highlighted as white text on a black back ground e Menus The name of the menu is displayed at the upper edge of the frame Menus are opened by confirming with lt START ENTER gt Example Configuration Photometry Settings Settings are indicated by a colon The current setting is displayed on the right hand side With lt 5 gt the selection of the possible settings is opened Subsequently the setting can be changed with A W and lt START ENTER gt Example English Illumination Contrast Temperature unit Switchoff time Functions Functions are designated by the name of the function They are im mediately carried out by confirming with lt START ENTER gt Example display the Calibration record function in the pH amp ORP Calibration menu pH amp ORP Calibration record Cal type AutoCal TEC Calibration interval 007 d Unit for slope mV pH W 2 00 4 01 7 00 10 01 76123 01 02 2013 23 Operation pHotoFlex pH Messages Information or instructions are marked by the symbol They can not be selected Example pH amp ORP W Buffer recognition TEC mmerse sensor in buffer 1 The B symbol indicates in
69. se menu items are made visible by selecting the filter criteria in the Filter menu 62 76123 01 02 2013 pHotoFlex pH Operation Display of a dataset Quitting the display 4 7 8 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 7 2 Start reading out the data on the display in the menu Configuration System Measured value memory Display 02 02 2005 11 24 16 24 8 C AR Scroll with Y Further datasets that correspond to the filter criteria are displayed with the lt A gt VW keys To quit the display of stored measurement datasets you have the fol lowing options e Switch directly to the measured value display with M short pres sure Leave the display and switch to the higher menu with lt ESC gt or lt START ENTER gt 4 7 4 Downloading the measurement datsets to the RS232 inter face You can download stored datasets to the RS232 interface Only those datasets are downloaded that correspond to the selected filter criteria see section 4 7 2 The datasets are downloaded in the adjusted output format see section 4 8 3 The data download to the interface is started in the menu Configura tion System Measured value memory RS232 download 76123 01 02 2013 63 Operation pHotoFlex pH Socket assignment
70. sing the original sample The test sample and original sample are identical if the test sample was not processed 94 76123 01 02 2013 pHotoFlex pH Lists Analysis specification The exact proceeding to carry out the detection procedure is described in the analysis specification 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 Thus the influence of the basic absorbance of the reagents on photometric measurement is compensated for Cell Vessel to take a liquid sample for photometric measurements The cell material mostly glass must have certain optical features to be suitable for photometry Citation forms Different forms of representing a measured concentration value that can be derived from each other The method to determine phosphate e g delivers a measured value for phosphorous P This measured value can be alternatively quoted in the citation forms PO4 PO4 P or P2O5 Detection procedure The detection procedure designates the general principle of how a sample is brought into a form suitable for measurement Different methods can be based on the same detection procedure LED Light Emitting Diode LEDs are used as the light source in the pHotoFlex pH Method A method comprises a chemical detection procedure and special method data calibration line that is required to
71. stment is carried out the standard adjustment is erased manually the meter is reset to delivery status Reset function If necessary press the lt M gt key several times until the mea sured parameter Concentration is selected 2 Select a program with lt PROG gt as necessary The following measurement of the standard applies only to the selected 1 3 Using lt CAL ZERO gt open the Photometry Adjustment menu Photometry Adjustment Zero adjust Measure blank value Delete blank value Standard adjustment 4 Open the Standard adjustment menu with A lt W gt and lt START ENTER gt last standard adjustment are displayed Here you can also erase the If data of a standard adjustment are already available the data of the Li data of an active standard adjustment 5 Using A lt W gt and lt START ENTER gt select and start the Measure standard function The menu guided standard measurement begins Follow the instructions on the display 76123 01 02 2013 41 Operation pHotoFlex pH Enter nominal value mg l Cu 6 Enter the nominal value of the standard Note Enter the decimal separator with lt START ENTER gt 7 Confirm the entered nominal value with lt START ENTER gt 8 Insert a cell with standard see section 4 2 9 Start the measurement of the standard with lt START ENTER gt After measuring th
72. strument safety EEC guideline 73 23 EEC EN 61010 1 2001 UL3101 1 CAN CSA C22 2 No 1010 1 92 Climatic class VDI VDE 3540 IP protection EN 60529 1991 FCC Class A Equipment Statement Note This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense 86 76123 01 02 2013 pHotoFlex pH Technical data Optical measuring prin ciple Interference filter Photometric reproducibility Photometric resolution Warm up time Measuring time Measured parameters Measuring range User defined programs Resolution Transmission 7 2 Photometry LED photometer with filter 436 nm 517 nm 557 nm 594 nm 610 nm 690 nm Accuracy 2nm 0 005 or better 0 001 none approx 2s Concentration method dependent selectable display form absorbance transmission Abs
73. tion can be found under the Configuration pH amp Calibration Calibration record menu item 54 76123 01 02 2013 pHotoFlex pH Operation Sample of a record 31 10 03 Sensor 16 13 pHotoFlex Ser no 12345678 Calibration pH amp ORP Calibration date 31 10 03 Calibration interval AutoCal TEC 16 13 33 Buffer 1 4 01 Buffer 2 7 00 Buffer 3 10 01 Voltage 1 184 0 mV 24 0 9C 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 Calibration evaluation After calibrating the meter automatically evaluates the calibration The asymmetry and slope are evaluated separately The worse evaluation of both is taken into account The evaluation appears on the display and in the calibration record Sample dis Calibration Asymmetry Slope play record mV mV pH 15 15 60 5 58 i 20 20 58 57 25 25 61 60 5 or 57 56 30 30 62 61 or Clean the electrode according to the electrode operating manual Lu 30 or 62 gt 30 50 Eliminate the error according to chapter 6 WHAT TO DO IF 76123 01 02 2013 55 Operation pHotoFlex pH Preparatory activities Perform the following preparatory activities when you want to calibrate 1 Connect the pH electrode to the meter The pH measured value display is displ
74. tometry settings 69 4 9 3 Resetting the pH settings 69 4 10 Meter information 70 4 11 Software update 70 4 12 Administrating user defined methods 71 4 12 1 Administrating user defined programs with a terminal program 72 Maintenance cleaning disposal 7T 5 1 Maintenance 77 5 1 1 Inserting exchanging the batteries 77 5 1 2 Retrofitting the rechargeable battery 78 5 27 Cleaning a ele sews aci 79 5 2 1 Cleaning the cell shaft 79 5 2 2 Cleaning the cells 80 4 ba76123e01 02 2013 pHotoFlex pH Contents 5 9 Ere butt de M 80 5 4 Disposal eret pse ea we 80 6 81 6 1 General 81 6 2 Photometry secl uso E ER A LAWE A Ay Ge D WD 82 6 3 pHvalue ORP voltage 82 7 Technical data 85 7 1 General data 85 12 Photometiy s este di Wa See eee ar W 87 7 3 pH value ORP voltage 88 8 Accessories options 89
75. trode Socket damp Dry socket Calibration procedure ncorrect solution temperature without temperature sensor Setup correct temperature ncorrect buffer solutions Select buffer solutions suitable for the calibration procedure Buffer solutions too old Cause Use only once Note the shelf life Remedy pH electrode Diaphragm contaminated Clean diaphragm Membrane contaminated Clean membrane Test sample pH value not stable Measure with air excluded if necessary Temperature not stable Temper if necessary Electrode test sample Conductivity too low e g in ultrapure water Use suitable electrode Temperature too high Use suitable electrode Organic liquids Use suitable electrode 76123 01 02 2013 83 What to do if pHotoFlex pH Obviously incorrect measured values Sensor symbol flashes Cause Remedy pH electrode Not connected Connect electrode Cable broken Replace cable or electrode pH electrode unsuitable Use suitable electrode Temperature difference between buffer and test sample too high Adjust temperature of buffer or sample solutions Measurement procedure not suitable Cause Follow special procedure Remedy
76. ut in the LSdata soft ware see operating manual LSdata or with the aid of a terminal pro gram section 4 12 1 You need the following data in any case Data Possible entries examples Program No 900 999 Model Any name max 5 characters Cuvette mm 16 or 28 Wave length nm 436 517 557 594 610 or 690 e g 0 05 measuring range beginning MRE e g 8 00 measuring range end EO Offset e g 0 0 Slope e g 1 0 Resolution 0 0001 0 001 0 01 0 1 1 2 5 10 or 100 Formula citation form e g PO4 P max 9 characters Unit e g mg l max 7 characters Blank required 0 or 1 No Yes Standard adjustment possi 0 or 1 ble No Yes Standard adjustment re 0 or 1 quired No Yes 76123 01 02 2013 71 Operation pHotoFlex pH 4 12 1 Administrating user defined programs with a terminal program Generally a terminal program serves to establish a connection to a de vice on a data interface and to communicate with the device via a con sole on the display Thus it is also possible to send command lines Terminal programs are available for different operating systems by dif ferent manufacturers Windows version 95 to XP contains the Hyper Terminal terminal program It is in the program menu under accessories For more detailed information please refer to the user information of the terminal program
77. without accepting the new calibration values press M short pressure or lt ESC gt 58 76123 01 02 2013 pHotoFlex pH Operation Continuing for three point calibration Cal type TEC 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 lt A gt W and START EN TER in the Set temperature setting 17 Using A W select Continue and press lt START EN TER The buffer is measured The measured value is checked for stability AutoRead pH amp ORP Calibration W Buffer value 4 01 BU 184 Temperature 24 8 C Terminate AutoRead 18 Wait for the end of the AutoRead measurement or Terminate AutoRead with lt START ENTER gt and take over the calibration value The new calibration values are displayed as an informative message W You have the following options Accept the new calibration values with lt START ENTER gt Subsequently the calibration record is displayed and output to the interface at the same time To switch to the measured value display without accepting the new calibration values press M short pressure or lt ESC gt 76123 01 02 2013 59 Operation pHotoFlex pH Measurement dataset 47 Storing The meter has 1000 st

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