Addressable Thermistor String Reader
Contents
1. E OKON The World Leader in Vibrating Wire Technology 48 Spencer Street Lebanon NH 03766 USA Tel 603 448 1562 Fax 603 448 3216 E mail geokon geokon com http www geokon com Addressable Thermistor String Reader User s Manual No part of this instruction manual may be reproduced by any means without the written consent of Geokon Inc The information contained herein is believed to be accurate and reliable However Geokon Inc assumes no responsibility for errors omissions or misinterpretation The information herein is subject to change without notification Copyright O 2015 by Geokon Inc Doc Rev 0 6 2015 Warranty Statement Geokon Inc warrants its products to be free of defects in materials and workmanship under normal use and service for a period of 13 months from date of purchase If the unit should malfunction it must be returned to the factory for evaluation freight prepaid Upon examination by Geokon if the unit is found to be defective it will be repaired or replaced at no charge However the WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of being damaged as a result of excessive corrosion or current heat moisture or vibration improper specification misapplication misuse or other operating conditions outside of Geokon s control Components which wear or which are damaged by misuse are not warranted This includes fuses and batteries Geokon manufac2. Display sensor These controls are described below 3 2 1 Temperature in The Temperature in control allows the user to select between temperature displayed in degrees Celsius or Fahrenheit see Figure 23 Sensor Parameters Temperature in Celsius v Celsius Display sensor BS Fahrenheit Thermistor 1 Reading reece 110372 7 Temperature 24 16 lt Figure 23 Temperature in Selections 24 3 2 2 Display sensor Because most Geokon Addressable Thermistor strings are comprised of more than one sensor this control allows the user to select any or all of the sensors for display see Figure 24 Sensor Parameters Temperature in Display sensor Thermistor 1 Reading Resistance 1 0 m Temperature 24 188 lt Figure 24 Display sensor drop down control In addition to the controls described in sections 3 2 1 through 3 2 2 Menu Options see Figure 25 and View Options see Figure 26 allow functionality such as storing saving and clearing data In Generic Readings mode the only Menu Option available is Close String Reader while the only valid View Option choice is String Selection Screen described further in the next section see section 3 3 25 Sensor Parameters Temperature in Celsius Y Display sensor v Thermistor 1 Reading resistance 10346 2 o Temperatur 24 219 oc Close String Reader Figure 25 Menu Options Sensor Parameters Tempe
3. Figure 15 Addressable Installer at root of HHD nnne nennt 17 Figure 16 Thermistor String Reader Install Screen ccccceccsessssscecececessessceceeeescessesesaeeeseeseessessaaeees 18 Figure 17 String Reader Icon in Start Programs sesenta nnns 18 Figure 18 Select Workspace Name nennen nnne ne rh inna nsns essentia nass sss n entia an nns 19 Figure 19 Workspace Folder Selection esses eene nnne nnne nnn nnns 20 Figure 20 Workspace Exist i enia aeree ae ena He ee e ENEE ENEE EECHER Dada 20 Figure 21 No string connection found 21 Figure 22 Default initial screen rette dee ne tei ded en Eed 22 Figure 23 Temperature in Selections nennen enne nn neni nnns nenne nian nns 23 Figure 24 Display sensor drop down Control 24 HALTE E e e EE 25 Figure 26 View Options i Gee neve isis assis eevee elev dee eves 25 Figure 27 String Selection Screen 26 Figure 28 Project Explorer with expanded projects and strings cccsssccccccessssesssaeceeeeessssesseaeeeeess 27 Figure 29 Context Men treten tt Cousin tat ee sue nbn dn Lune edu RN que bn de Rasse RENE ege e 28 Figure 30 Workspace Selection Window eene nnne eene enn nnns nnn 29 Figure 31 List of Workspace Names ener nnne nennen inen netiis nns s sesenta inns nnn 29 Figure 32 Sort Elements Sub Jtems nennen enne nnn nnns sns nn entia sa nass sse n seta a sanas 31 Figure 33 Application Menu 32 Figure 34 Live Readings Men
4. 12 Column 1 2 3 4 5 6 7 8 9 Where Column 1 represents the year when the array was stored Column 2 represents the Julian day when the array was stored Column 3 represents the hour when the array was stored Column 4 represents the minute when the array was stored Column 5 represents the second when the array was stored Column 6 represents the Thermistor reading units either Celsius or Fahrenheit Column 7 represents the sensor temperature in the unit specified in column 6 Column 8 represents the raw Thermistor reading in Ohms Column 9 represents the array number Note The number and definition of columns may change as Export Data Extended Format options are changed see Figure 44 51 A 2 Data Text Report with Column and Report Headers The report below see Figure 49 shown in Excel format for clarity illustrates additional report formatting capability by adding column and report headers Note that this report contains data for only one thermistor node and the date and time appear as one field by using the Y1900 Date Time option This was file was created by storing data while channel 4 was displayed in Live Readings Export was chosen when the string was selected Thermistor Data Project Name Strings String Name myString Thermistor 4 File Name Therm4 20150421 164643 CSV Date and Time Temperature Thermistor Thermistor Array amp Units degrees ohms 4 21 2015 16 46 31 Celsius 23 996 10448 38 1 4 21 20
5. Ground Table 1 USB to RS 485 Connector Pinout nS Thermistor String Reader vd Geokon Project Explorer m IWorkspace ThermSpace i Project Strings e COM Port COMS ei Finding sensors File Eg Application Figure 5 Startup Window Sensor Parameters Temperature in Y Display sensor Thermistor 1 Reading Resistance 11037 82 Temperature 2 757 oc Figure 6 Live Generic Readings 2 2 Installing Windows Mobile Device Center WMDC The installation of the USB to RS 485 Converter drivers and the Addressable Thermistor String Reader Application requires the following e Hand held device HHD running Windows Mobile Classic 5 X or higher 6 X recommended with at least 50 Mbytes of free memory HHD must have either a USB Host socket or a USB OTG socket Windows NET 3 5 Compact Framework CF and NET framework English language Messages package installed on HHD Both CAB file installers are included in the Addressable Thermistor String Reader installer Zip file available on Geokon s web site See section 2 4 2 4 Installing the App e If the host PC s operating system is Vista Windows 7 or Windows 8 then Windows Mobile Device Center should be installed on the host PC see Figure 7 An active connection between the host PC and the HHD must be established either via a physical link or Bluetooth Hand held device wf Connected 9
6. Mobile Device Center should be installed on the host PC see Section 2 2 2 2 Installing Windows Mobile Device Center wmpc Before installation can begin an active connection between the host PC and the HHD must be established either via a physical link USB or Bluetooth 2 4 1 Launching the Installer On the host PC open a Windows Explorer session and click on Pocket PC from the Computer selection see Figure 12 c E jes P gt Computer Pocket PC gt Search Pocket PC Organize v JE Computer amp 0s c gt mg c DVD Drive D SS 156 MB free of 193 MB Ux9 sys Geodata F E Extended Storage S maxtoolkit geodata M P 3 65 GB tree of 368 GB La qualitysystemdocs Geodata C L wtucker geosys10 Z Pocket_PC C A Application Data Figure 12 Windows Explorer window displaying HHD root folder 16 As shown in Figure 12 double click the icon labeled V to navigate to the hand held PC s system root shown in Figure 13 Stax SS gt Computer gt PocketPC gt gt gp EE Organize v BP Computer amp OS C Application Data ConnMgr File folder File folder 2 amp 3 DVD Drive D S sys Geodata F Documents and Settings MUSIC GP maxtoolkit geodata M File folder File folder Loi qualitysystemdocs Geod Loi wtucker geosys10 Z My Documents Program Files Pocket PC File folder File folder ca Application Data J G
7. a matter of good computer technique critical data and configuration files should be periodically backed up e Entire Workspaces can be backed up using file folder copy techniques in Windows Explorer e Although backing up a Workspace automatically includes any data files stored as part of the project element String structure data files can be individually backed up per Sensor using the Data Export function from the File menu After exporting the resulting csv file should be transferred to a desktop PC using the techniques described in section 5 1 50 APPENDIX A Data File Formats A 1 Raw Data Text Report When exporting raw text data is the default for the Extended Format options of the Export Data Menu see section 3 5 2 and Figure 47 2015 111 16 46 31 Celsius 23 996 10448 38 1 2015 111 16 46 37 Celsius 23 997 10447 74 2 2015 111 16 46 41 Celsius 23 997 10447 74 3 2015 112 11 18 18 Celsius 23 632 10617 57 4 2015 112 11 18 22 Celsius 23 632 10617 57 5 2015 112 11 18 27 Celsius 23 632 10617 57 6 2015 112 11 18 32 Celsius 23 634 10616 92 7 2015 112 11 18 37 Celsius 23 634 10616 92 8 2015 112 11 19 42 Ce181u08 23 035 10010 27 9 2015 112 11 18 47 Cel1sius 23 635 10616 27 10 2015 112 11 195 52 CG6151u8 23 030 10015 02 11 2015 112 11 18 57 Ce1sius 23 636 10615 62
8. both the Addressable Thermistor String and the hand held PC are purchased as a system Geokon makes every effort to ensure that the system is completely set up and working before it leaves the factory Other times the user may already own the hand held PC and are setting up their hardware and software for the very first time The steps below attempt to cover all cases and refer the user to the appropriate section when more information is needed For those users that have purchased a complete Addressable system a workspace with the name of ATSR will have been pre defined and the driver for USB to RS 485 converter will already have been installed on the hand held PC Note that the workspace name can be changed at any time or new ones can be created see section 3 3 1 1 When purchasing a complete Addressable system sections 2 2 through 2 5 can possibly be skipped but a quick review is recommended 2 1 Initial Quick Start Sequence The following steps are a guide to the typical operation of the Addressable and if followed should result in a successful sensor measurement A If the driver for the USB to RS 485 converter see Figure 2 has been previously installed then proceed to step B otherwise please refer to Section 2 2 2 2 Installing Windows Mobile Device Center WMDC and Section 2 3 2 3 Installing the USB to RS 485 Converter Driver B If the Addressable Thermistor String Reader Application has been previously installed on t
9. configuration for subsequent 20 application access After workspaces are created all future user access to workspaces is always by name s Select Workspace folder Enter a workspace folder or use the Browse button to navigate to or create a new folder New Workspace Folder ngReader Workspaces AVWRA PS Cancel Eg Select Figure 19 Workspace Folder Selection Note If the newly selected workspace folder contains an existing workspace the string reader will display a dialog asking the user if they want to import the workspace as is or to rename it with the previously specified new workspace Workspace exists 7 12 16 StringReader has detected a workspace Back40 in the folder Application DataGeokon StringReader Workspaces Back40 Press Import to add the existing workspace to the current config Press Rename to rename the existing workspace then import it Press Try Again to select another folder Rename Figure 20 Workspace Exist 21 After the initial workspace is created the App will attempt to find any sensors on a connected string If no remote module can be found then the error message seen in Figure 21 will be displayed By default the application looks for an addressable thermistor string on COM5 but will remember the COM number of the last successful connection If the connection attempt is unsuccessful the newly created workspace will be opened b
10. files although periodically archiving others on a master PC is recommended Connecting the Field PC to a desktop or laptop PC using the supplied USB cable Type A to mini B is straight forward and allows the user to view the Field PC s storage as a flash drive on the desktop laptop you can then simply drag the files around to any folder on the desktop laptop e If you are using Windows XP you will need to download and install the program ActiveSync This application is available for free from the Microsoft site www microsoft com and search for Active Sync download Once installed generally requires a reboot simply connect the USB cable from the Field PC and then open My Computer on the XP machine and see a PDA entry under drives Just double click on it to see the folders in the Field PC e If you are using Windows Vista or Windows 7 Microsoft includes software called Windows Mobile Device Center and you should be able to immediately connect to the Field PC and see it in the Computer window It is not necessary to set up any syncing options although it can easily be accomplished Another Bluetooth partnership can also be set up from your desktop laptop assuming they have Bluetooth modules to the Field PC and transfer files that way All of these options and more are described in the Field PC s Reference Guide 5 2 Backing up configurations To guard against accidental data loss and as
11. 15 16 46 37 Celsius 23 997 10447 74 2 4 21 2015 16 46 41 Celsius 23 997 10447 74 3 4 22 2015 11 18 18 Celsius 23 632 10617 57 4 4 22 2015 11 18 22 Celsius 23 632 10617 57 5 4 22 2015 11 18 27 Celsius 23 632 10617 57 6 4 22 2015 11 18 32 Celsius 23 634 10616 92 7 4 22 2015 11 18 37 Celsius 23 634 10616 92 8 4 22 2015 11 18 42 Celsius 23 635 10616 27 9 4 22 2015 11 18 47 Celsius 23 635 10616 27 10 4 22 2015 11 18 52 Celsius 23 636 10615 62 11 4 22 2015 11 18 57 Celsius 23 636 10615 62 12 Figure 49 Enhanced Data Text Report 52 APPENDIX B Specifications B 1 Hand Held Device HHD NX7 B Specifications 806 MHZ PXA3TO Operating System Windows Mobile 6 1 Classic Included Software Microsoft Office Mobile multiple languages Data Storage 4 GB internal data storage compact Flash slot Type I or II SD SDHC slot SDIO supported user accessible CF and SD slots Color Display 480x640 pixel Anti glare 3 5 VGA resolution sunlight readable 262K color 18 bit TMR Technology with LED backlight Keyboard Dedicated backlit numeric keypad Four way directional buttons using function key Fn discrete keys for Start Menu Left Menu Right Camera ok Return and Power Suspend Ports RS 232C 9 pin D connector 1 x USB host and client Mini AB USB OTG 1 2 host 2 0 client 12 VDC 4 1 Amps Max power in Environmental Tested to MIL STD810F for water humidity sand dust vibration altitude shock and temperature Powe
12. B to RS 485 Connector Pinout eese nennen nninnnen etes inne asa sre ss dana annia 7 Table 2 Folder paths and File Names 1 Introduction The Addressable Thermistor String Reader is made up of two components e The Readout Unit consisting of a Windows Mobile handheld PC running the Addressable Thermistor String Reader Application see Figure 3 e The USB to RS 485 Converter which plugs into the mini USB OTG Host amp Client connector on the hand held device see Figure 2 This converter connects to the addressable Thermistor string to be measured Figure 1 Four node Thermistor String The two components combine to communicate with the addressable Thermistor string see Figure 1 using RS 485 a reliable multi drop electrical communications protocol The automation protocol used to communicate with each Thermistor node is Modbus each node acting as a Modbus slave while the hand held device acts as the Modbus master The RS 485 standard supports up to 32 drops or nodes at lengths up 1200 meters 4000 feet total see Note 1 Note 1 32 nodes is the maximum when the total cable length is 1200 meters In most cases communication to significantly more nodes than 32 is possible when the cable lengths are much shorter than the maximum Figure 2 USB to RS 485 Converter Geokon part 3810A 2 1 1 Features Rugged general purpose reliable readout based on a Windows Mobile handheld PC e All the be
13. Mobile Device Settings Last sync Today at 9 59 AM e Figure 7 Windows Mobile Device Center 10 Windows Mobile Device Center is available as either a 32 bit or 64 bit application from Microsoft and can be downloaded from the links below For 32 bit PCs http www microsoft com en us download details aspx id 14 For 64 bit PCs http www microsoft com en us download details aspx id 3182 Note While the links above are believed to be accurate Microsoft may change the location of its web pages from time to time breaking the above links Download the appropriate WMDC installer then ensure that the HHD is connected to the host PC with the supplied USB cable Launch the WMDC installer and follow the directions displayed The installer will install the application on the Host PC as well as the Window Mobile program needed for communication After installing Windows Mobile Device Center launch the application from the Windows Programs menu If it doesn t automatically initiate a connection click on the on screen button named Connect without setting up your device When connecting with the USB cable the WMDC application should automatically launch and connect each time the hand held is connected to the PC 11 2 3 Installing the USB to RS 485 Converter Driver Nautiz X7 FTDI Driver Install Instructions 1 Establish a connection between the Nautiz and the Host PC see section 2 2 2 2 Installing Windows Mo
14. and 4 2 for more information regarding configuration editing Sort Elements Project String and Sensor explorer elements can be sorted by newest or oldest first by selecting the appropriate Sort Elements sub item see Figure 32 31 nS Thermistor String Reader E Geokon Project Explorer Workspace ThermSpace i Project Strings Een tox C bei Switch Workspace Delete Element Edit Settings Sort Elements COM Port ICOM8 el Sensors found 4 Eg Application Figure 32 Sort Elements Sub Items 32 3 4 Application Menu The Thermistor String Reader Application Menu provides access to additional application functionality It is located in the lower right corner of the main window frame see Figure 33 s Thermistor String Reader Geng t Geokon Project Explorer Workspace ThermSpace L Project Strings Te String myString Live Readings COM About Therm String Reader pila plication Figure 33 Application Menu 33 3 4 1 Live Readings This menu item will only be enabled if a successful connection has been established with an addressable thermistor string A successful connection is indicated by a status Sensors found N at the bottom right of the main screen where N is some number from 1 to 255 see Figure 28 Tapping on the Live Readings menu item displays the sub menu shown in Figure 34 no Thermistor String Reader E Geokon Project Ex
15. and folders Dont show hidden files folders or drives Show hidden files folders and drives Hide empty drives in the Computer folder Hide extensions for known file types Hide protected operating system files Recommended Figure 10 Folder Options View tab shown 14 You can apply the view such as Details or Icons that you are using for this folder to all folders of this type Apply to Folders Advanced settings Files and Folders 7 Always show icons never thumbnails 7 Always show menus Display file icon on thumbnails Display file size information in folder tips Display the full path in the title bar Classic theme only Hide extensions for known file types Hide protected operating system files Recommended Figure 11 Folder Options Apply Button 15 2 4 Installing the App The installation of the Addressable Thermistor Reader Application requires the following e Hand held device HHD running Windows Mobile Classic 5 X 6 X recommended or higher with at least 50 Mbytes of free memory HHD must have USB capability either with a full size host port or an USB OTG port Windows NET 3 5 Compact Framework CF and NET framework English language Messages package installed on HHD Both CAB file installers are included in the Addressable Thermistor installer Zip file available on Geokon s web site e If host PC s operating system is Vista Windows 7 or Windows 8 then Windows
16. be used for each file if desired 42 ne Save File Enter a file name to save the data file to A file extension of csv will automatically be appended to this filename If no folder is specified the file will be saved in the default data folder for the selected hole Tap the Browse button if another folder is desired File Name Therm 1 20150501 144238 Folder Name My Documents Cancel Select Figure 43 Save File Window After all the paths for each file have been specified the Extended Format window will be displayed see Figure 44 sc Extended Format Date and Time Format L Use Excel Y1900 Date Time Format Date Format Year Day v Time Format Array Content Include Raw Readings Report Content _ Include Column Header Text L Include Report Header File Extension Cancel Figure 44 Extended Format Window 43 The Extended Format Window allows additional formatting options to be applied to the data before exporting These options are described below Date and Time Format If the Use Excel Y1900 Date Time Format checkbox is checked the Date and Time format drop down controls below it will be disabled The date and time is saved in a numeric format that can be readily formatted in MS Excel and is equal to the number of seconds since 1 1 1900 the fractional part amounts to the elapsed time the day the measurement took place If the Use Excel Y1900 Date Ti
17. bile Device Center WMDC From the Thermistor String Reader install folder on the PC navigate to the following sub folder Archer Host USB ARMv4VCPDriver then copy the files ftdi ser dll and FTDIPORT INF to the Nautiz folder Windows If the Windows folder cannot be found on the Nautiz see Section 2 3 1 Turn off the Nautiz hold power button until chime is heard and disconnect the host USB cable Turn the Nautiz back on wait for it to fully boot and connect the USB to RS 485 Converter via the adapter cable HHD NX7 1026 to the USB port The converter should already be connected to the Addressable Thermistor String At the prompt for a driver name enter ftdi ser dll do not enter quotes The prompt should disappear As a default the Nautiz uses COM8 for the USB COM driver 2 3 1 Making Windows Folder Visible Installing drivers onto hand held devices typically requires copying file to the Windows folder on the device Usually the folder will not be visible because it is a system folder and default folder options are set to hide system folders With a connection established between the Nautiz and the Host PC see Section 2 2 follow the directions below to make the Windows folder visible 1 Open a Windows Explorer session and click on Pocket PC from the Computer selection 2 Click on the Organize button see Figure 8 3 From the resulting drop down menu click Fol
18. der and search options see Figure 9 to display the Folder Options dialog 4 Click on the View tab of the Folder Options dialog see Figure 10 5 Under Advanced Settings click on Show hidden files folders or drives to enable the Apply button see Figure 11 6 Click on the Apply button to apply the new folder options to Pocket PC 12 A 05 C EM gt amp DVD Drive D c 156 MB free of 193 MB b Ga sys Geodata F Extended Storage gt G maxtoolkit geodata M 7 e 3 68 GB free of 3 68 GB gt GP qualitysystemdocs Geodata C gt amp 9 wtucker geosys10 Z 4 RH Pocket PC 4 cs 4 Application Data 4 ille a Lr 2 items Ee Figure 8 Windows Explorer Pocket_PC shown gt 8 gt Computer Pocket PC X Search Pocket ESSI Organize v SE v e A Cut Copy Ee c 156 MB free of 193 MB E Paste ILE Extended Storage Es Redo 7 e 3 68 GB free of 3 68 GB Select all T Layout Folder and search options 7 lt Delete Rename Remove properties Properties Close Figure 9 Organize Drop down Menu 13 You can apply the view such as Details or Icons that you are using for this folder to all folders of this type ee Folders Advanced settings 7 Always show icons never thumbnails 7 Always show menus Display file icon on thumbnails Display file size information in folder tips Hidden files
19. e elements The highest element within the workspace hierarchy tree is a project Projects allow a String Reader user to group strings into organizational units based on the user s preference A project can reflect a specific site where thermistor strings have been installed such as a construction site dam tunnel etc This organizational feature makes it easy to find string configurations along with related data files The list of strings defined under a project can be viewed by selecting a specific project and expanding its branch in the explorer view click on sign preceding the project name see Figure 28 In the hierarchy of the project explorer strings are child elements of a project string String settings can be edited by selecting the desired string in the explorer tree Once selected string settings can be displayed using Edit Settings from the context menu see Figure 29 Sc Thermistor String Reader g lt Geokon Project Explorer Workspace ThermSpace z Project Strings Ne String myString COM Port ICOM8 el Sensors found 4 ES Application Figure 28 Project Explorer with expanded projects and strings 28 3 3 1 1 Context Menu Using the Project Explorer new workspace elements can be added by with the context menu Access the drop down menu by tapping and holding the explorer element that is to be operated on A menu is then displayed that is context sensitive in that based on the current sel
20. ection the appropriate elements will be enabled and others will be disabled The screen shot shown in Figure 29 depicts the drop down menu with the menu item Add String disabled grayed out since a string element is selected in the Project Explorer and one string element cannot be added to another Additional information for each context menu item follows nS Thermistor String Reader E Geokon Project Explorer Workspace ThermSpace i Project Strings wir mr mar Ohrin m Sr Switch Workspace Delete Element Edit Settings Sort Elements COM Port COM8 el Sensors found 4 Es Application Figure 29 Context Menu Switch Workspace Use this context menu item to open any previously opened workspace select a workspace from the file system or create a completely new workspace Click this menu item to display the Workspace Selection window see Figure 30 Select Morkspace Name Select the workspace to switch to from the list of names below or enter a new name Workspace names PRODUCTION X Cancel el Select Figure 30 Workspace Selection Window Select Workspace Name Select the workspace to switch to from the list of names below or enter a new name Workspace names RODUCTION v newyork whatever testWork PR CDU TION Cancel E Select Figure 31 List of Workspace Names Click on the drop down control to display the NE a
21. eokon a Digital IPI Manager cemail vol reen Microsoft NET CF 3 5 LOG TXT GK 405 VOL File Text Document 144 KB 11 5 KB J GK 604D ppt d z mxip initdb mxip lang vol DE VOL File VOL File StringReader 52 0 KB 28 0 KB 18 items Temp Windows File folder File folder Figure 13 Hand held device root folder contents Next unzip the installer downloaded from Geokon s web site then open a new Windows Explorer window and navigate to the root folder of the installation folder see Figure 14 EECH oe Organize v Include in library Share with v New folder i CN e T eem Name Date modified Type BE Desktop J Archer Host USB 4 21 2015 4 56 PM Filefolder T Downloads IJ dotNET 3 5 CF 4 21 2015 4 56 PM Filefolder E Recent Places Jk Help Docs 4 21 2015 5 31 PM File folder E ThermStrRdrSetup CAB 4 21 2015 4 41PM Cabinet File RE Desktop 53 Libraries F3 Documents v d mm s o en a 4 items Figure 14 Installation Folder Contents 17 Copy the file ThermStrRdrSetup CAB from the installation folder on the PC to the HHD system root folder From the HHD navigate to the system root folder using File Explorer see Figure 15 and tap the file ThermStrRdrSetup to execute the installer sc File Explorer My Device w n ConnMgr n Documents an Ju Extended Stora J MUSIC n My Documents n Program Files Ud Temp Ui Window
22. ere stored The readings stored counter will also be reset to 0 The readings are saved to a file contained in a special data folder under the string configuration folder structure The readings are either saved to a new data file or appended to an existing data file Please refer to the String Configuration section 4 2 for more information Data files can be exported with special formatting at a later time 37 Close String Reader Shuts down the application and breaks the connection to the string The user will be given the opportunity to save any stored data from the current session Sensor Parameters Temperature in M Display sensor Thermistor 1 Reading resistance 10835 9 temperature 23 173 String Selection Screen Figure 39 View Options 3 4 1 1 2 View Options The available View options see Figure 39 are outlined below String Selection Screen This option returns operation to the String Selection Screen where other sensors may be selected edited or created See section 3 3 for more information 3 4 1 2 Live Readings Generic Readings See section 3 2 of this manual 3 4 2 About Therm String Reader Tapping this menu item displays a window containing copyright and version information about the Addressable Thermistor String Reader 38 39 3 5 File Menu The file menu is used to delete and export data files along with viewing of data see Figure 40 se Thermistor Str
23. he hand held PC then proceed to step C otherwise please refer to Section 2 2 2 2 Installing Windows Mobile Device Center WMDC and Section 2 4 2 4 Installing the App C If the Addressable Thermistor String has been connected to the USB to RS 485 Converter then proceed to step D otherwise connect the 4 conductors of the Thermistor string to the converter using the pinout shown in Table 1 D E F G H I J Plug the USB to RS 485 Converter into the appropriate USB connector on the handheld PC Some hand held units use a USB OTG connector which will require an adapter cable such as Geokon s part number HHD NX7 1026 Other units have a full size USB Host connector that the converter will plug directly into Launch the App by tapping on Start from the hand held PC s main window then tap Programs then tap the Addressable Thermistor String Reader icon If this is the first time that the application has been started then see Section 2 5 2 5 Starting the Application the First Time Otherwise proceed to step F After a few seconds the startup screen containing the Project Explorer will be shown see Figure 5 The USB to RS 485 converter typically appears as a COM port on a hand held PC and different manufacturers may have different default settings for instance the Nautiz X7 uses COM8 for the USB COM port while the Archer typically uses COM2 From the Main Window select the appropria
24. ing Reader qn SE Geokon Project Explorer Workspace ThermSpace ki Project Strings Te String myString Delete Data Export Data View Data Close String Reader P s found 4 Application Figure 40 File Menu Options 40 3 5 1 Delete Data Files If a selected string contains data files then tapping on the Delete Data File Menu option displays the window shown in Figure 41 sc Select Files to Delete File Name ThermAll_20150501_144433 dat Therm4 20150501 144343 dat Therm3 20150501 144314 dat Therm2 20150501 144254 dat Thermi 20150501 144238 dat ThermAl 20150422 155804 dat ThermAll 20150422 154938 dat Data File Info File Name ThermAll 20150501 144433 d Path Application Data Geokon Th Last Modified 95 01 2015 14 44 32 Cancel Gs Delete Figure 41 Delete Data Files Window The Delete Data File Menu option allows the deleting of data files from the current sensor selected via the Project Explorer Figure 41 shows the files available for sensor Channel1 A file may be selected or deselected by tapping in the Select column Multiple files may be selected for deleting If a selected file name is too long to fit in the File Name text box tap inside the text box and use the arrow keys on the hand held PC s external keypad to scroll left or right Once all the desired files are selected tapping on Delete will cause the string reader applica
25. lightly longer for all sensors to be updated 35 Sensor Parameters Temperature in Continuous store Display Store sensor amp Store interval sec Live Readings Sensor1 Q 10270 0 Sensor 9C Sensor2 Q 108784 Sensor2 C Figure 36 Live Readings All sensors selected Sensor Parameters Temperature in Celsius v Continuous store Disable v Display Store sensor v G Store interval sec b x Thermistor 1 Reading 2 stored resistance 110256 9 o Temperature Clear Data Save Stored Data Close String Reader Figure 37 Menu Options 36 3 4 1 1 1 Live Readings With Sensor Menu Options The available Menu options see Figure 37 are outlined below Clear Data Allows clearing of all readings stored in the current session for the selected thermistor Tapping this menu option displays the warning shown in Figure 38 Tapping Yes will clear all data from the current session and will reset the readings stored counter to 0 This feature has no effect on previously saved data Sensor Parameters Temperature in Celsius Clear Data This command will clear all stored data from sensor Therm1 Do you want to continue Yes Temperatur 24 424 oc Application Figure 38 Clear Data Warning Save Stored Data Saves all stored data from the current session for the selected thermistor A message is displayed informing the user how many readings w
26. me Format checkbox is not checked the Date and Time formats can be individually set via their respective drop down controls Array Content The array content can be changed to include or exclude the raw reading before conversion by the gage factor of the sensor Report Content The data report can be changed to include or exclude column header text as well as report header text Please refer to Appendix C for an example of column header and report header text The file extension for the generated file can also be changed from csv to txt If txt is selected as the data file extension then all the column data will be separated by tabs instead of commas 44 3 5 4 View Data When the View Data File Menu option is clicked and a sensor has been previously selected the Select File window is displayed see Figure 45 Tap in the Selected column to select a data file for viewing Tap View when done to display the Sensor Reads window see Figure 46 sc Select File to View File Name ThermAll_20150501_144433 dat Therm4 20150501 144343 dat Therm3 20150501 144314 dat Therm2 20150501 144254 dat Thermi 20150501 144238 dat ThermAll 20150422 155804 dat ThermAll 20150422 154938 dat Data File Info File Name Thermi 20150501 144238 da Path Application Data Geokon Th Last Modified 95 01 2015 14 42 38 Figure 45 View Data File Selection Window 45 Sensor Reads Tem
27. nefits of a Windows compatible device Windows file system USB connectivity e Long battery life e Ease of use Reliable and simple connection to an addressable thermistor string e Requires only a 4 wire connection to talk to 32 thermistor sensors e Standard Modbus communication protocol e Inexpensive communication adapter 1 2 Addressable Thermistor String Reader Application The Addressable Thermistor Reader Application the App installs and runs on a ruggedized hand held PC see Figure 3 and is designed to communicate via a USB to RS 485 converter to an addressable string of thermistors Temperature in Display sensor Resistance 11605 22 Temperature 2 1 S 6 3 3 oC Figure 3 Hand held PC running Addressable Thermistor String Reader 1 3 Before using the App The string reader software runs as an application under Windows Mobile 5 or 6 operating system installed on a hand held PC e Please familiarize yourself with the hand held PC and the Windows Mobile OS e It is assumed in the instructions below that you can launch applications from the Start button including File Explorer e It is assumed that you can tap the keyboard icon as needed and use the on screen keyboard to enter text and numbers 2 Setup Installation and Operation The steps described in section 2 1 are an attempt to guide the user through the process of connecting to the sensor launching the App and taking a reading If
28. orer element configuration files such as sensor configuration files and data files The default locations and names for some of these appear in Table 2 Purpose Default Folder Filename Addressable Application Data Geokon ThermStringRdr Config xml Thermistor String Reader preferences and configuration Addressable Application Data Geokon ThermStringRdr Conversions xml Thermistor String Reader conversions Workspace Application Data Geokon ThermStringRdr Workspaces N A repository Project repository Application Data Geokon ThermStringRdr wkspc Workspace Workspaces WRK SPC FLDR String repository Application Data Geokon ThermStringRdr proj Project Workspaces lt WRK_SPC_FLDR gt lt PROJECT_ID gt 2 Sensor repository Application Data Geokon ThermStringRdr string String Workspaces lt WRK_SPC_FLDR gt lt PROJECT_ID gt STRING ID 3 Table 2 Folder paths and File Names 1 WRK SPOC FLDRe is usually the same as the workspace name but is not required to be 2 PROJECT ID can be found in each Projects settings 3 STRING D can be found in each String s settings J Note Manual editing any of the configuration files and or renaming folders above is strongly discouraged and may cause all configuration data to be lost 49 5 1 File Transfer In general the only files generated by the Thermistor String Reader that will have to be transferred are the sensor data
29. pera ture Pero ron me SE E eg 121 14 42 28 Celsius 2015 121 14 42 31 Celsius 24 4 Figure 46 Sensor Reads Window The scrollbar at the bottom of the screen can be used to display columns that are off the current page 3 5 5 Exit Tapping on this menu item will cause the program to cease execution 46 4 Configuring Project Explorer Elements Each Project Explorer Element has settings that can be configured For some like Workspace and Project the settings consist only of a name and description String elements require another parameter that determines how data files are written to Each element s settings can be adjusted using the Edit Settings option from the Context Menu 4 1 Project Configuration Figure 47 depicts the Projects Settings window s Edit Project Settings Project ID Read only value generated when the Project Settings project was created Used internally by Project ID the Addressable Thermistor String idi E Description A group of strings for a Project Name particular job site Use the on screen keyboard to enter a unique and descriptive name for the Date created project Description Using the on screen keyboard enter a brief description pertaining to the project Date created Read only date and time value generated when the project was created Cancel a Menu Figure 47 Project Settings When done editing project settings can be saved via the Menu Save Se
30. plorer Workspace ThermSpace L Project Strings A String myString Figure 34 Live Readings Menu Selections 34 3 4 1 1 Live Readings With Selected String Tapping this menu item will cause the Live Readings screen to be displayed with its parameters initialized for the specific string selected see Figure 35 Sensor Parameters Temperature in Celsius v Continuous store Disable v Display Store sensor Store interval sec E Thermistor 1 Reading w 027510 o Temperature 24 375 oc Figure 35 Live Readings single thermistor selected Note that when a string is selected Live Readings contains a Store button that allows multiple readings to be stored for a particular sensor With each tap on this button a new reading is stored for the selected sensor Each time a reading is Store stored a beep will be heard from the hand held unit A different sensor can be selected for measurement by accessing the drop down box to the right of the Display Store sensor label The new sensor can be chosen from the list of all sensors in the string When ALL is selected for Display Store sensor the display changes the thermistor readings panel to a scrolling list see Figure 36 With strings containing more than 2 sensors a scroll bar will be displayed to the right of the sensor output to allowing the entire string to be viewed A long string may require s
31. r Intelligent 5600 mAh Li Ion battery can be easily changed in the field without tools Wireless Connectivity Internal Bluetooth wireless technology option 2 0 EDR Class 1 range 20 m WLAN Integrated 802 11b g supports AES TKIP WEP WPA and WPA2 Certification amp Standards FCC Class B CE Mark EN60950 RoHS compliant FM approved Class I Div 2 Operating Temperature 30 C to 60 C Storage Temperature 40 C to 70 C Shock Survival Multiple drops from 1 22 m onto concrete Dimensions L x W x H 179 mm 7 x 97 mm 3 8 x 37 mm 1 5
32. rature in Display sensor Y Thermistor 1 Reading resistance 10344 9 Temperature 24 221 String Selection Screen Figure 26 View Options 26 3 3 String Selection Screen The String Selection Screen see Figure 27 contains a number of navigation controls designed to make the job of selecting application elements and functions easier These navigation controls present an organizational view of the active workspace inform the user about the state of the application and provide the user with tools to configure and control Geokon devices s Thermistor String Reader Ping KR Geokon Project Explorer Workspace ThermSpace i Project Strings COM Port SS el Sensors found 4 Ej Application Figure 27 String Selection Screen The String Selection Screen is comprised of several core components Project Element selection tool Context drop down menu Explorer Application Allows display changes and provides information about the Menu string reader application File Menu Data file exporting viewing and deleting options Status Area Displays the active COM Port number and string connection status 27 3 3 1 Project Explorer The Project Explorer is the primary navigation mechanism for moving around the Thermistor String Reader workspace The Project Explorer presents a view of the workspace which includes projects and strings These views reflect the hierarchical relationship between thes
33. rring Data sssscssssscccsssccccssseccessscccessceseees 48 BLN EI 49 5 2 Backing Up COnmgqurauiOns ee 49 APPENDIX A Data File FOPMAats iicsssiicisscdeasscenscistituscenssedseisisovenenasaasebsscorecoseses 50 A 1 Raw Data Text Report sna iiri ic ioc cin a a a e ERE aaa 50 A 2 Data Text Report with Column and Report Headers 51 APPENDIX B Specifications ueeens eoe ora I ax Y Eugen See eege 52 B 1 Hand Held Device HHD NX7 B Specifications EEN 52 Table of Figures Figure 1 Four node Thermistor String cccccccccccsssssssssecececessessnseseseeecsssesesaeeeseescessesaaaeseeeessessensaaeeeeess 1 Figure 2 USB to RS 485 Converter Geokon part 2810A 2 ener enhn 2 Figure 3 Hand held PC running Addressable Thermistor String Reader 3 Figure 4 Incorrect COM port Error Message eene enn nnne nnns nnns nsns nsns nsns nsns nsns nnns 6 Figure 5 Startup Window EEN 8 Figure 6 Live Generic Readings 8 Figure 7 Windows Mobile Device Center 9 Figure 8 Windows Explorer Pocket PC sbhown ener nennen nennen enne 12 Figure 9 Organize Drop down Menu 12 Figure 10 Folder Options View tab sbown enne nnne nennen ennt nns 13 Figure 11 Folder Options Apply Button 14 Figure 12 Windows Explorer window displaying HHD root folder eene 15 Figure 13 Hand held device root folder content 16 Figure 14 Installation Folder Contents enne nnne nennen nnne inn nnns 16
34. s cemail 4 29 15 Microsoft NET 9 16 14 mxip lang 4 29 15 mxip notify 4 29 15 pim 4 29 15 3 ThermStrRdrSe 4 21 15 Figure 15 Addressable Installer at root of HHD If there is a storage card installed in the HHD then the user will be prompted to choose the location for the installation see Figure 16 It is recommended that Device be selected then tap Install with the stylus to initiate the install process 18 sc Start ee E Choose a location to install Geokon Inc StrRdrSetup Device Extended Storage Space Needed 3457 KB Space Available 153630 KB Install Gd Cancel Figure 16 Thermistor String Reader Install Screen The file ThermStrRdrSetup CAB can be now deleted from the system root folder to free up memory The Addressable Thermistor Reader application is now installed and its icon should appear in Start Programs see Figure 17 se Programs S x Notes PHM RegEdit Pictures amp Videos e C w A Remote Search TacLink Deskt a 7 ed ATS Task Tasks ti Pala Manager amp Windows Live Windows Media Figure 17 String Reader Icon in Start gt Programs 19 2 5 Starting the Application the First Time The readout software is launched by tapping the Start button and selecting the icon to the right from the drop down list or clicking on Programs and then clicking the icon to the right When star
35. te COM port for your unit If the COM port selected exists on the hand held but is incorrect for the USB to RS 485 then the App after approximately 40 seconds will change the status display from Finding sensors to Sensors found 0 If the COM port selected is disconnected on the hand held then the error displayed in Figure 4 will be shown Incorrect COM port COM does not exist or is disconnected Please select another COM Port Figure 4 Incorrect COM port Error Message If the COM port selected is correct for the USB to RS 485 converter and the string is properly connected after approximately 40 seconds the status display will change from Finding sensors to Sensors found N where N corresponds to the number of sensors in the string After a few seconds more the Live Generic Readings screen will be displayed see Figure 6 If storing thermistor string output is desired tap on View then String H Selection Screen to select a pre defined string configuration or to create a new string configuration Please refer to section 3 3 3 3 String Selection Screen as well as section 4 2 4 2 String Configuration K To close the App from the Live Readings Screen tap Menu then Close String Reader Thermistor String USB to RS 485 Description Cable Conductor Connector Label Color Red 5V 5 volt power to the string Green B RxD TxD White A RxD TxD Black GND
36. ting the Addressable Thermistor Readout Application for the first time you will be prompted to create a workspace name The workspace name can be any combination of letters and numbers and should be descriptive in nature After creation this name will be displayed in the Project Explorer window sc Select Workspace Name Enter a unique descriptive name for the initial workspace After pressing Select you ll be asked to specify a location for your new workspace Workspace name E Cancel Eg Select Figure 18 Select Workspace Name Once you ve selected the name for your workspace you will be prompted to choose or create a folder on your hand held device where all the workspace elements will be stored As can be seen in Figure 19 the default workspace location is in a folder name the same as the workspace name under a special shared folder reserved for workspaces For Windows Mobile devices this folder is located at Application Data Geokon ThermStringRdr Workspaces The App appends the name of the new workspace to this shared folder see Section 5 5 Files Folders and Transfe rring Data and uses it as the default location for the new workspace The user is free to select their own location either by entering it directly or the Browse button may be used to navigate to a different folder location or to create a new folder see Figure 19 This workspace location will be stored in the App s
37. tion to prompt the user to confirm that they really want to delete the selected files Tap on Yes to finish the deletion 41 3 5 2 Export Data Files The Export menu is used to export sensor data to a folder of the user s choosing see Figure 42 s Select File to Export File Name Selected ThermAll 20150501 144433 dat Therm4 20150501 144343 dat Therm3 20150501 144314 dat Therm2 20150501 144254 dat Thermi 20150501 144238 dat ThermAll 20150422 155804 dat ThermAll 20150422 154938 dat Data File Info File Name Thermi 20150501 144238 da Path Application Data Geokon Th Last Modified 95 01 2015 14 42 38 Cancel it Export Figure 42 Export Data Files Window The Export Data Menu Option allows exporting of data files from the current sensor selected via the Project Explorer Figure 42 shows the files available for sensor Channel A file may be selected or deselected by tapping in the Select column Multiple files may be selected for exporting If a selected file name is too long to fit in the File Name text box tap inside the text box and use the arrow keys on the hand held PC s external keypad to scroll left or right Once all the desired files are selected tap Export to display the Save File window Figure 43 where a new name and folder may be specified for each file If more than one file was selected then a checkbox is displayed allowing the same folder to
38. tring Reader Application sss 3 1 3 Detore using the ADD aede coe dante irte Da t td i aste da deu ua 4 2 Setup Installation and Operation eeeeeee ee eee eee eene nennen 5 2 1 Initial Quick Start Sequence sas serae raten ara aar naa an nn Vae aa 5 2 2 Installing Windows Mobile Device Center WMDOC eeeeennene 9 2 3 Installing the USB to RS 485 Converter Driver eene 11 2 3 1 Making Windows Folder Visible AA 11 2 4 Installing the SAPD miria aaa i AA EE 15 2 4 t La nching the EASEAWE Ate dese etiam e ota P 15 2 5 Starting the Application the First Time ssssssssssssssssssrssssssssnsesesesrererene 19 3 User Interface oido Dee Dea Hte 23 Sel OVEMIEW i gees 23 3 2 Live Readings Screen Generic Readings een 23 3 2 1 TEMPCrature Il erger Eeer 23 322 Display SEN SOM EEN 24 3 3 String Selection Screen BEE 26 JA L Give REAGINGS EE 33 3 4 2 About Therm String Reader eere ene ere tome Urt ol eus 38 3 5 FII MOT ttt ct tc S t t ose d e t Cea 39 3 5 1 Delete Data Files ee tine 40 2 9 2 EXDOrt Datd FMeSsc ur iot o Nise datas be p ate db her nti pate itd 41 32 9 4 VIO EN ese eee e asa pud cec eee tul rs lived eias o a ees aL 44 355 5 EE 45 4 Configuring Project Explorer Elements ecce eee eene eene 46 a Ee wee ege EE 46 42 String mhlG Ura MON EE 47 5 Files Folders and Transfe
39. ttings option Workspace configuration is similar to project configuration in that only the name and description are editable 47 4 2 String Configuration The string settings window manages string configuration much the same as the Project Settings window see Figure 48 s Edit String Settings ID Name Created Addressable String Settings Description Addressable VW Data file options Write data to new file v ADDRO316113034 FirstString string containing 2 sensors 3 16 15 11 30 49 Cancel Ee Menu Figure 48 Addressable String Settings Window In addition to Name and Description String Settings include an additional setting Data file options that defines how the data is stored on the file system each time data is saved from Live Readings With Selected String see Section 3 4 1 1 1 Live Readings With Sensor Menu Options Append data to existing file Write data to new file Create new file then append Writes data to last data file written to appending it sequentially after the last data record Creates new file each time data is stored Creates a new file when data is initially stored then appends data to this file on each subsequent collection 48 5 Files Folders and Transferring Data The Addressable Thermistor String Reader application uses several types of files and dedicated folder locations to keep track of Workspaces and Project Expl
40. tures scientific instruments whose misuse is potentially dangerous The instruments are intended to be installed and used only by qualified personnel There are no warranties except as stated herein There are no other warranties expressed or implied including but not limited to the implied warranties of merchantability and of fitness for a particular purpose Geokon Inc is not responsible for any damages or losses caused to other equipment whether direct indirect incidental special or consequential which the purchaser may experience as a result of the installation or use of the product The buyer s sole remedy for any breach of this agreement by Geokon Inc or any breach of any warranty by Geokon Inc shall not exceed the purchase price paid by the purchaser to Geokon Inc for the unit or units or equipment directly affected by such breach Under no circumstances will Geokon reimburse the claimant for loss incurred in removing and or reinstalling equipment Every precaution for accuracy has been taken in the preparation of manuals and or software however Geokon Inc neither assumes responsibility for any omissions or errors that may appear nor assumes liability for any damages or losses that result from the use of the products in accordance with the information contained in the manual or software Table of Contents lo4esBECI LSRTI Eege 9 BN TEE 1 IT EGO OS eS EE 2 1 2 Addressable Thermistor S
41. u Selections ccsessscccececsssessaeceeecscsesesseaeeeeecsscsseseuaeseesesseeseessaeeeeess 33 Figure 35 Live Readings single thermistor selected enne 34 Figure 36 Live Readings All sensors selected eene nns 35 Figure 37 Menu Optlons retenir tede e ar ee tnt aee suds aped etuer e dee aree et nta du nb deae ea de o Rp ee Enea ee du o 35 Figure 38 Clear Data Warning sese en a nass sn en seti aa a agas sn nn 36 Figure 39 Vlew Options etie a dead ned dase GG ta eode tue eene adn gedet 37 Figure 40 File Menu Options seeseseseeeeeenennnnnnn enne nennen enne tenir nnns inen neta anna sss s enses agas ases 39 Figure 41 Delete Data Files Window sees nennen nennen nennen ener nnns nnn 40 Figure 42 Export Data Files Window ccccccccccscssssssssssecccecsssesssaeseeeescesseseaaeeeeecssessesaaaeeeeeeeseeseaaaeeeeess 41 Figure 43 Save File Window EEN 42 Figure 44 Extended Format Window esses enne nnn nnns snnt ains s ases essetis a snas nn 42 Figure 45 View Data File Selection Wipdow eese nnn nnne nnns 44 Figure 46 Sensor Reads Window eene en nnn natans ensi entia sanas sss ense naga anna ases 45 Figure 47 Project Setting Snine auae ee dak eene ve ae eene ia du idu nee Tevet shasta aed 46 Figure 48 Addressable String Settings Window sese nnns 47 Figure 49 Enhanced Data Text Report 51 List of Tables Table 1 US
42. vailable workspaces see Figure 31 Alternatively a new name can be entered in the workspace name selection box If the Thermistor String Reader recognizes the name as a workspace it has opened before it will simply re open the 29 30 existing workspace If the workspace name is new to the string reader then a workspace folder selection window is displayed see Figure 19 Select the appropriate folder or use the default and a new workspace is created with the name entered above Add Project This menu item allows new projects to be created and added to a workspace After tapping on this Context Menu item the Project Settings Dialog will be displayed and can be edited See section 4 1 for more information regarding project configuration This menu item will only be enabled when the workspace is selected Add String This menu item allows new string configurations to be created and added to a project After tapping on this Context Menu item the Addressable String Settings Dialog will be displayed and can be edited See section 4 2 for more information regarding string configuration This menu item will only be enabled when a project is selected Delete Element Project Explorer Elements can be deleted using this Context Menu item A confirmation dialog will be displayed before the element is deleted Edit Settings This menu item allows configuration editing of the selected Project Explorer Element See section 4 1
43. y default and you will be able to create new project and string configurations for your workspace See Figure 22 nS Thermistor String Reader wd disconnected Please select another COM Port COM Port COM el Finding sensors File Em Application Figure 21 No string connection found 22 nS Thermistor String Reader 7 E Geokon Project Explorer x Project Strings COM Port COM5 sel Sensors found 0 File Gol Application Figure 22 Default initial screen J Note With all subsequent attempts to connect to the thermistor string please ensure that the string is wired to the USB to RS 485 adapter and that the adapter is plugged into the USB port before launching the Thermistor String Reader 23 3 User Interface 3 1 Overview After the applications is launched following a successful connection the Thermistor String Reader will display the screen shown in Figure 6 This is the Live Readings screen and it is shown in Generic Readings mode meaning that thermistor string is not associated with any pre defined string configuration The following sections describe the Thermistor String Reader user interface in greater detail 3 2 Live Readings Screen Generic Readings Figures 6 shows a typical thermistor output in degrees Celsius as well as in ohms In Generic Readings mode the two on screen controls that control sensor measurement are Temperature in and
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