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1. USER MANUAL SCHMIDT HAENSCH GMBH 8 CO 2 006 UNIPOL UNIVERSALPOLARIMETER Method 1 A 23 11 2006 14 85 Angle measurement 2 969 Belgique Belgi Espana Fisher Scientific t l 0388671414 t l 056 260 260 tfno 91 515 92 34 Bioblock fax 03 88 67 11 68 056 260 270 fax 915159235 Part of Thermo Fisher Scientific bioblock vente thermofisher com bioblock belgium thermofisher com bioblock ventasethermofisher com Parc d innovation BP 50111 F67403 illkirch cedex www bioblock com www bioblock be www es fishersci com 5C 007 AENSCH NN Opto electronic Measuring Instruments since 1864 2006 SCHMIDT HAENSCH UJ UNIPOLES EF INFORMATIONS All rights reserved Reproduction of this manual in any pos sible way without written permission of SCHMIDT HAENSCH GMBH is prohibited Content may change without notice Every effort has been made to achieve accura cy in this manual SCHMIDT HAENSCH GMBH is not responsi ble for mistakes regarding the content of this manual or consequences resulting from those SCHMIDT HAENSCH 0 5 INFORMATIONS 2 Cr SYMBOLS at Navigation symbol Indicates submenus and sequences of operation Key Indicates which key has to be pressed A Hint Important information Please read carefully LA EE UNP CONTENT 1 INTRODUCTION 07 INTRODUCTION2. Quartz control plates have pro ven themselves good for that matter When one measures their rotation in the device one knows the wavelength of the device Fortunately the ORD of quartz is almost iden tical with the ORD of sucrose Therefore po SCHMIDT HAENSCH es Opto electronic Measuring Instruments since 1864 larimeters in the sugar industry can be easily calibrated by using quartz plates If the wave length of the device had shifted a little bit the quartz will display the same value as the sucro se samples If then the conversion factor of the displayed rotation in degrees angle is changed so that the quartz plate will display the value which is given in its verification protocol then the sugar samples will be measured correct again Trough that the wavelength of the polarimeter was indeed not corrected but the display in degrees sugar is correct again and that is what counts An alternative way is to readjust the wavelength of the device The procedure for that is relative ly complicated and demands accurate working Therefore this should only be performed by trained people 2 2 TEMPERATURE EFFECTS The rotation of quartz increases with tempera ture T A plate which reads 40 000 at 20 has to read 40 006 21 In opposite the rotation of a sucrose solution decreases with temperature Rotation T Rotation 20 0 C 1 0 4 71 10 T 20 0 The solution which re
3. default method which can be selected out of four defined methods Sets one of the four available methods to be the one which is currently used active Selection from one of the four possible user de fined methods If activated here a method can be used for measuring If deactivated here a method is dis abled for the user User defined label of the method Measurements of rotation or specific rotation see chapter 4 8 Output of angle or scales on the working screen auto automatic measuring manual measuring after pressing Start manual print manual measuring and printout remote 1 2 operation over PC oets hotkeys for this method De activating of information in head of printout De activating of single printer columns Number of repeated measurements Time between two measurements s oelection for output of dilutions none 1 1 1 4 oets settings back to factory default Copies and saves the active method SETTINGS 19 UUNIPOLENS 6 7 DEFAULT VALUES Default values Temperature lemperature Tube length T coef ppm C Tubes lt return Temp coef ppm C Tubes Press Enter to edit 6 8 SCALES Scale 1 10 Scale 1 Active Active Name Units Name Format length D g ts Unit Last digit Factor Coef Set Z lt return Format length Digits after decimal point Press Enter to leave the Submenu Last digit Fact
4. 00 no parity odd parity even parity 1 Stop Bit 2 Stop Bits Starts the program Starts the program Printer code Printer type ASCII Top space Left space Line space 3 Chers lt return 10 1 Press Enter to edit 0 default NEN SCUMIOT t HAENSCH 0 2 UNIPOLE 6 11 SERVICE Test Hardware Test hardware Operating hours No measurements Use microswitch Limit too dark Limit dark Dark repeat lt zur ck LED Test Temperature Test Press Enter otor slow to activate selected menu LL Motor fast tress Test Delay Polarimeter Menu structur Statistik Heap Strings lt return Stress test Druck sin Press Enter Protokoll to activate selected menu Struktur Heap Test Polar E Se Strings LED test Preamp test Temperature test Motor slow Motor fast stress test Protocol lt return Operating hours No Measurements Use micro switch Press Enter to activate selected menu it too dark Limit dark Dark repeat 0M SCHMIDT HAENSCH Opto electronic Measuring Instruments since 1864 Starts the program Starts the program Input of number for slow motor rotations Input of number for fast motor rotations Starts the program 15 20 Starts the program Starts the program Starts the program Starts the program 7934 94 Display of hours of operation Display n
5. 01 01 2006 18 48 After setting zero the user is requested to start the measurement For that the sample is placed in the sample chamber and the sample chamber cover is closed Pressing START Will start the measurement Angle SCHMIDT HAENSCH Opto electronic Measuring Instruments since 1864 POLATRIMETER 13 2 UNIPOLE 4 7 STATUS There two different ways which UniPol L can be operated Normal The Normal status allows every user to perform changes in the menu With this setting the de vice is open for all users That means after tur ning on nobody has to log on The changing of settings is user independent GLP The GLP Good Laboratory Praxis Status ser ves the user depending operation of the polari meter After turning on the user has to log on with his username and password The user can only chose from a list of users who have already been inserted by the administrator Changes in the menu can only be performed by the admi nistrator The GLP status is set in the security menu It can only be changed by the admini strator under MAIN MENU SECURITY STATUS SCHMIDT HAENSCH Opto electronic Measuring Instruments since 1864 4 8 MODES The universal polarimeter can measure in two different ways Rotation Measurement of the rotation of the plane of pola rization by the sample in Z Alpha Measurement of the speci
6. H Opto electronic Measuring Instruments since 1864 IN POLARIMETRIE 6 BIUNIPOLIW Polarimeters work with polarised light This is not very demonstrative because the human eye can not distinguish polarised light from un polarised light A polarisation filter looks like a simple neutral grey filter But if one holds two polarisation filters in a row then there is a certain rotation in which no light can pass the combination of the filters If then one of the filters is turned 90 then light can easily pass both Physicists say only light of a certain polarisation plane can pass through a polarisation filter If the passing planes of both filters are perpendicular to each other then no light can pass through the combination Some materials like quartz or sucrose solutions are called optically active because they are able to rotate the polarisation plane Polarime ters are measuring devices which measure the rotation that is caused by optically active test samples In a polarimeter two polarisation filters are placed in a row so that no light can pass If an optically active test sample is placed between those filters then some light can pass becau se the plane of polarisation has been rotated If now one of the polarisation filters is rotated just so far that no light can pass anymore then the optical rotation of the sample has been mea sured directly That means a polarimeter actual
7. IN POLARIMETRY 8 10 2 2 1 WAVELENGTH EFFECTS 9 2 2 TEMPERATURE EFFECTS 10 2 3 TUBE LENGTH 10 INITIAL OPERATION 11 3 1 SETTING UP 11 3 2 CONNECTORS 11 OPERATION OF THE POLARIMETER 12 15 4 1 KEYBOARD 12 4 2 DISPLAY 13 4 3 HOTKEYS 13 4 4 TURNING ON OFF 14 4 5 SETTING ZERO 14 4 6 MEASURING 14 4 7 STATUS 15 4 8 MODES 15 HOW TO DEFINE METHODS 16 i 5 1 WHAT IS A METHOD 16 5 2 PRESET METHODS 16 5 3 HOW TO DEFINE METHODS 16 5 4 HOW TO SELECT METHODS 16 SETTINGS 17 23 6 6 1 MENU OVERVIEW 17 6 2 MAIN MENU 18 6 3 PASSWORD 18 6 4 GENERAL SETTINGS 19 6 5 CALIBRATION 19 6 6 METHODS 20 6 7 DEFAULT VALUES 21 6 8 SCALES 21 6 9 SECURITY 22 6 10 COMMUNICATION 22 6 11 SERVICE 23 7 OUTPUT 25 7 1 PRINT OUTPUT 25 APPENDIX 27 8 A1 ERROR DESCRIPTION 27 TENE SCHMIDT HAENSCH 2006 SCHMIDT HAENSCH UNPOLENS APPLIANCES POLARIMETRIC CONCENTRATION AND PURITY ANALYSIS IN FOOD PHARMACEUTICS COSMETICS AND CHEMISTRY UNIPOL L FULLY AUTOMATIC POLARIMETER e For routine measurements e Discontinued measurements e Automated multiple measurements with statistical evaluation e Operation over PC Remote mode possible e Conformity with the European and American pharmacopoeias e GLP GMP appropriate documentation e 4 measuring methods and 10 extra scales programmable 00 99 9 NE SCHMIOT 5 HAENSCH 0 5 5 UNIPOLE If polarimeter tubes or quartz test tubes with buil
8. O edit Method A 5 4 HOW TO SELECT METHODS 4 2165 1 or is pressed while the user is not within a menu then the user is asked to select Angle a method After accepting with a ENTER the default screen is shown again Now the desired method can be selected by using the arrow keys again and the measurement can be initi ated with START The user will be able to provide a batch and sample ID for the printout protocol The first line in the display will always show the 1 method which is currently in use start SCHMIDT HAENSCH Opto electronic Measuring Instruments since 1864 W TO DEFINE METHODS 15 EEBIUNIPOLIW 6 SETTINGS General Date Time Year Month Day Hour Minute Language English German Company name 1 manual input Gore pnma Calibraion Reset Setzer NENNEN Wavelengh emergarzva Calibration 0 Display Logfile _ Aktive Method input method name Method 1 4 Aktiv Methods Name manual input Mode Degree Alpha Display Angle Scale 1 4 Measurement Mode auto manual manual print remote 1 2 Hotkeys selection assingning keys Printout Selection printout Printeed Columns Selection printed columns Repeat count input repeat count Repeat delay input repeat delay Set to standard reset Copy Method Selection Method Temperature input temperature Tub
9. Z degrees sugar The international sugar scale ISS is divided linear that means a rotation of 17 313 is the same as 50 007Z IN POLARIMETRIE 7 2 UN POL 2 1 WAVELENGTH EFFECTS The polarimeters of the sugar industry use four standard wavelengths These wavelengths re sult in the following specific rotations a and rotations of normal solutions in a 200 mm test tube a DESCRIPTION WAVELENGHT 9 nm 546 23 78 4178 40 777 sodium yellow 589 44 34 6260 34 626 632 99 57 2144 29 751 882 60 28 5306 14 836 Exact definitions concerning the international sugar scale can be found in Specification and Standard SPS 1 1998 Polarimetry and the International Sugar Scale in the ICUMSA Me thods Book In the example the influence of the wavelength on the rotation the so called optical rotation dis persion ORD becomes apparent An offset of only 0 03 nm causes a difference of 0 01 in rotation That is why light sources with a small bandwidth between the half po wer points have to be used Rotation T Rotation 20 0 C 1 0 1 44 10 T 20 0 Usually halogen lamps with in terference filters are used These filters can be produced with an adequately small band width however their central wavelength is not hundred percent stable in perpetuity To determine the exact current working wave length the polarimeter has to be tested with a well known sample
10. administrator has to enter his personal password before being able to work with the device The user cannot perform any changes if the device is in GLP mode 1234 default The second security level is secured through the administrator password With this password the administrator is able to adjust all necessary settings he administrator password is supplied by SCHMIDT HAENSCH in a separate envelope Several settings of UniPol L can be set in the submenus The op tions listed here are parameters which can only be changed by the administrator If the polarimeter is in Nor mal mode then the user can perform changes in the menu However not all menu items are available for the user Especial ly settings concerning security are inaccessible The following pages will give short explanations for several settings XXSAKKUNIPOLEES 6 4 GENERAL SETTINGS Jate Time General Date Time Language Company name 1 Company name 2 lt return Language Company name 1 2 Press Enter to activate selected menu 6 5 CALIBRATION Reset Wavelength Calibration Reset Wavelength Calibration Log lt return Press Enter to start the program Cali ration Log SCHMIDT HAENSCH Opto electronic Measuring Instruments since 1864 Year Month Day Hour Minute English German Both values under Company name 1 2 will ap pear on the p
11. ads 40 000 at 20 C has to read 39 981 at 21 Please note that there are three different influ ences on the measured value of solutions The UC IN POLARIMETRIE 8 UNIPOLES __ LE test tubes which are filled up to 100 cm3 are calibrated for 20 Also the length of the test tube depends on the temperature Furthermore the optical activity of the solution changes with temperature From these three influences only the last one is included in the formula above The examples show that during calibration of a polarimeter it is essential that the temperature is taken into consideration If a calibration with quartz is done in a laboratory at 22 C and later a normal solution is measured without conside ration of the temperature the solution is going to read only 99 88 Z instead of 100 00 Z 2 3 TUBE LENGTH The degree of rotation is linear to the length of the test tube Usually tubes with 200 mm length are used For 100 mm tubes the value in the menu under DEFAULT VALUES TUBE LENGTH has to be changed ze SCHMIDT HAENSCH persto Opto electronic Measuring Instruments since 1864 ION IN POLARIMETRIE 9 UNIPOL 3 INITIAL OPERATION 31 SETTING UP The universal polarimeter UniPol L should be set up on a stable vibration free worktop in a preferably dry environment The device is con nected to the provided power supply UniPol L can be connected to a prin
12. are short cut keys which allow the user to make changes or perform tasks faster and easier without having to leave the current menu The hotkey menu can be opened by pressing ALPHA keys Reset Concentr Stop UST Method Dilution Print Men exit POLATRIMETER 12 UUWEUNIPOLES B 4 4 TURNING ON OFF The on off switch is on the right side of the Serial no 12345 polarimeter After switched on UniPol L auto matically performs a brief self test The process pos of the start up procedure is shown graphically on the display If the polarimeter is in GLP mode a user has to be selected and confirmed with a password The clear identification of a user serves for se curity If measurement protocol is printed the user s name will appear in it Administrator 7 4 5 SETTING ZERO Before the first measurement can be started ieee Bacar vans methods have to be defined and the polarimeter Mises has to be set to zero The creation of methods sample tube or will be further explained in chapter How to de ids fine methods After pressing sy START the user will be re quested to remove the test tube or fill it with wa ter Confirmation with will start the calibration process A status bar in the bottom section of the display will show the progress of Dr cke Enter the process water 4 6 MEASURING Method 1 A
13. e lenght input tube lenght Default values Temp coef ppm C input temp coef Tubes Selection tubes Scales selection scale 110 Status Normal GLP O o Security Administrator input users Communication Configuration Programm Load Save Test Port Test echo Printer manual input manual input manual input manual input Service Test hardware Polarimeter LED Test TemperatureTest Motor slow Motor fast Stress Test Protocol Operating hours display operating hours weMemwemens CIE _ AA UNIPOLES 6 2 MAIN MENU Enter Menu 01 01 200 Serial no 12345 User name Administrator 1 6 3 PASSWORD Password Administrator password General Calibration Methods Main menu Default values General Calibration Methodes Scales Default values Scales Security Security Communication Service Communication Press Enter to activate Service selected menu Pressing i MENU leads to the main menu The menu is password protected with a number code The main menu can be navigated by the up and down arrow keys and submenus can be selected and entered with 89 ENTER Each change in the menu requires the administrator to log in UniPol L is password protected on two levels If the device is in GLP mode a user who has been authorised by the
14. fic rotation from the ro tation and the concentration 4 9 SCALES User defined scales can be defined and saved under the menu item Scales 7 MAIN MENU SCALES User defined scales can be for ex ample for glucose invert sugar or miscellane ous optically active chemical substances THE POLATRIMETER 14 UNIPOLI rri e 5 HOW TO DEFINE METHODS 5 1 WHAT IS A METHOD 5 2 PRESET METHODS A method includes all important parameters for UniPol L is shipped with four factory set me a certain measuring procedure The one time thods definition of these settings has the advantage that each measurement of a certain measure ment procedure has the same output format on the display Thus those settings have to be adjusted only once A method includes para meters like mode rotation or specific rotation format for displaying the results units dilution hotkeys and printing properties NUMBER NAME DISPLAY 2 B saeir 4 b spez rot a angle printout Methodes 5 3 HOW TO DEFINE METHODS 4 Before measuring with the universal polarimeter Method 1 UniPol L of SCHMIDT HAENSCH GmbH at 2 least and up to four methods have to be de uel ed fined If the device is in GLP mode then these return changes have to be performed by the admini strator All parameters that have to be changed Press Enter are described in the chapter Settings L
15. in gt COMMUNI CATION are correct RINT OUTPUT 23 cENMUNIPOLIE LH APPENDIX A1 ERROR DESCRIPTION NUMBER DESCRIPTION HELP 01 Value too small to display or value lower than the allo Change format length wed range Value too large to display or value smaller than the Change format length allowed range Value out of allowable range Value was not Statistic value has error _ There is no module which can deliver that value Scale value smaller than the possible RI range Scale value larger than the possible Rrange Scale value smaller than the possible temperature range Scale not active Please activate the scale Scales ScaleXY Active yes Scale definition is incorrect Tube coding is wrong pe Quartz platte in the sample room Tube lenght not known Please define it in the menu DEB Too much light overdrive of preamplifier ge SCHMIDT HAENSCH GMBH amp CO OPTO ELECTRONIC MEASURING WALDSTRASSE 80 81 13403 BERLIN GERMANY TELEPHONE 49 0 30 41 70 72 0 TELEFAX 449 0 30 41 70 72 99 E MAIL SALES SCHMIDT HAENSCH DE WEBSITE WWW SCHMIDT HAENSCH DE
16. ly measures an angle The angle of optical rotation of diluted sub stances which are measured in test tubes de pends on the Kind of sample Concentration of the sample Length of the tube Temperature Colour of the light wavelength SCHMIDT HAENSCH Opto electronic Measuring Instruments since 1864 2 INTRODUCTION IN POLARIMETRY The according formula has been found by the French physicist Jean B Biot in the 19th centu ry The BIOT formula says that c a 10000 with concentration g 100 cm3 solution rotation in degrees angle a specific rotation length of the test tube mm The specific rotation depends on temperature and wavelength with some samples also from the concentration itself Please mind that the unit of concentration is g 100cm3 and not g 100g Let us for example take the specific rotation of a watered sample of sucrose at 20 and a wavelength of 589 44 nm that is the balan ce point of both yellow sodium spectral lines which was defined by the ICUMSA Internatio nal Commission for Uniform Methods of Sugar Analysis to be a 66 588 0 002 o0 if one takes 26g in 100 cm3 and a 200mm sample tube then this will result in a rotation of 34 626 0 0017 which can be seen easily when using the for mula This sucrose solution is called normal so lution and it is defined to have an optical rotation of 100 00
17. or Coef Set Z SCHMIDT HAENSCH Opto electronic Measuring Instruments since 1864 Jo Input of default temperature for measurements without temperature sensor Input of used tube length Expansion coefficient of the test tube Selection of already input tube sizes Selection and activation of scales If activated a scale can be selected for usage in the working screen User defined label of the scale Input of desired unit of the defined scale Number of all characters which are printed Number of digits after decimal point Rounding of last digit x g 100 ml The concentration which reads the highest va lue on the scale For sugar and a 200mm test tube it is x 26g Further explanation under appendix A2 Sca les Sets the correct coefficient for Z according to the given wave length SETTINGS 20 UNIPOLE 6 9 SECURITY Status inistrator User 1 10 Active Press Enter User to edit 610 COMMUNICATION Configuration Serial port Serial Port 1 Baudrate Parity Baudrate Stop bits Test port Test Echo Parity lt return Stop bits Press Enter Test Port to edit _ Test echo Printer Printer type Top space Left space Line space Char size GLP Normal page 14 For changing the administrator password For adding users of the device For de activating users Input of a username Input of user dependent password Startet das Programm Load Save 96
18. rintout Sets the device to zero as reference As the interference filters suffer from age and environment depending alteration it might be necessary in some cases to readjust the wave length This is performed by adjusting the inter ference filter by turning a screw which can be reached through the back side of the device The menu helps the user by letting him mea sure the quartz after each step of adjusting to check the current value and keep on adjusting until the desired value is reached By pressing ENTER the value is saved Log file of all calibrations performed The results of the last 10 calibrations and zero settings are documented SETTINGS 18 UNIPOLEN 6 6 METHODS Methodes Default Method Default method Active method Method 1 Method 2 Method 3 Method 4 return Active Method ethod 1 4 Press Enter to edit Active Method A Method 3 01 01 2006 01 20 Name o ode Display Angle 0 00 Temp 20 0 C Conz 26 00 Measurement Mode Tube 2 00mm Abs 0 0 Start measurement eys Method 1 Printout Active Name Mode d columns Display Meas mode Printout Printed columns R peat delay Repeat COUNT Repeat delay Dilution Dilution Set to standard Copy method lt return standard Enter to leave the submenu Press SCHMIDT HAENSCH Opto electronic Measuring Instruments since 1864 Jo Sets the
19. t in temperature sensor are used the current temperature of the test sample or the quartz will be shown on the display With measurements of sucrose or wavelength of the polarimeter by using a quartz control tube the temperature corrected measurement value in Z will be dis played automatically SPECIFICATIONS SCALE Optical Rotation International Sugarscale Concentration User defined MEASURING RANGE 90 259 MEASURING UNIT Angle Z Concentration 96 User defined 1 INTRODUCTION The fully automatic digital polarimeter of SCHMIDT HAENSCH comes in a new modern style case and is equipped with an improved version of the well known software from the ATR series Among other options it is possible to input test sample identification numbers and to request a statistical evaluation of the results of multiple measurements User defined proto cols can be directly send to a printer The resolution of the UniPol L is conform to the regulations of the European and American phar macopoeias A GLP GMP appro priate measuring protocol can be send to the PC or printer The Uni Pol L is usually shipped with 589 nm wavelength A different wave length can be installed for special applications 0 05 Z 0 01 MENT TEMPERATURE PREZISION WAVELENGHT 589 44 nm iltemaivoly 546 578 639 nm DATA IN OUTPUT 1 parallel 1 PS2 jotmeentm _ 85 260 V 50 60 Hz SCHMIDT HAENSC
20. ter or a PC by using the serial port The device is ready for use immediately after turning on 3 2 CONNECTORS The polarimeter has connectors on the back side which are shown in the following figure 1 Main adapter 2 Fuse 1 5 A 3 Boot button 4 Bar Code Scanner 5 Parallel 6 Com1 Printer 7 Com2 WY SCHMIDT HAENSCH Opto electronic Measuring Instruments since 1864 2006 SCHMIDT HAENSCH mUNIPOLES 4 1 KEYBOARD thods Key assignments Menu Pressing y MENU brings up the main menu To be able to make changes there a user has to log on with a password first The settings which are listed in the table page 17 can be changed in the menu A detailed description of the settings can be found in chapter 6 Alpha By pressing ALPHA it is possible to switch between number and character input Characters are chosen by pressing the assigned key multiple times Both upper case and lower case characters can be input Print The PRINT key allows printing measuring re sults and sample data if a printer or a PC is con nected SCHMIDT HAENSCH Opto electronic Measuring Instruments since 1864 Negative numbers are input with the 4 OPERATION OF THE POLARIMETER The keyboard is illustrated in this figure The number keys are used mainly for numerical input Through pres sing the Alpha key characters can be used for example to label me key z
21. umber of measurements performed so far De activates the switch of the sample chamber cover 3 10 3 default VENE serves 22 NNNNUNIPOLIEARHS LE The following figure shows a typical printout In principle the UniPol L is able to communicate directly with a printer or to send the output to a PC 7 PRINT OUTPUT The picture below shows which parameters have to be changed in the menu gt METHODS PRINTOUT amp METHODS PRINTED COLUMNS to customise the print output for user needs agenti 01 01 2006 serialnumber 12345 Method A User name Administrator Charge ProbenID 01 01 06 00 05 01 01 06 00331 Benut Benutzer Administrator tout 0 00 20 0 0 0 200 0 02 E Daterrime 0 00 20 0 0 0 200 0 00 t SerialNo 0 00 20 0 0 0 200 0 02 t Method 0 00 20 0 0 0 200 0 02 t Company 0 00 20 0 0 200 0 02 t User 0 00 204 0 0 200 0 02 E Babch t SampleID 0 00 24 0 0 0 0 01 Mittelwert t cal data 0 0011 0 900 0 00 0 0077 Std Abw t Header t Statistics Printed columns Angle Temperature Abs Tube length Press Enter to edit SCHMIDT HAENSCH Opto electronic Measuring Instruments since 1864 pom printer code Output Timeout printer lt return Press Enter to leave the Submenu Yes For sending data to a Computer it is neces sary that all parameters
22. y The dot is used for decimal digits Arrow Keys i 1 and are used for navigating through the menu items i has two functions 1 During data input this key is used as back space to delete single digits or characters from right to left 2 After measuring this key will bring up detai led information about the measurement Enter ENTER confirms the current selection In a lot of submenus it will bring up information in the bottom display section Start Pressing they START key will start the mea surement NOF THE POLARIMETER 11 k AUNIPOLES L1 4 2 DISPLAY The display is divided into three sections Na vigation selection display and operating assi stance The sections are separated from each other by dual lines The upper section of the display displays the current position in navigating the menu It ser ves as an orientation guide The centre section shows the options and va lues as well as output information It can be na vigated by using the arrow keys and settings are set by using the number and character buttons The bottom section displays general operating assistance It helps the user with giving correct input and operating UniPol L in general It also shows the next steps zm SCHMIDT HAENSCH pet Opto electronic Measuring Instruments since 1864 Methodes Press Enter to edit Method A 4 3 HOTKEYS Hotkeys
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