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1. Powerful Software Smart Sensors J O J C O O D Ea gt Me D v o V v Am O LL r CO 80205 2650 E 40th Ave e Denve Phone 303 320 4764 e Fax 303 322 7242 www geotechenv com e a eo a ent a Se ME EEE e e oe u eS u Sees ee o o o o r m m o e e mo nnn En f f T a a2 ae E e e o o o oe meee a BEEPS DS ff 2 eee eae ee ee mi Em o oe e o oe e oe cm ee L me oe e oe e e e e e e e o oe e e e e o o E m m ib oe o a l ee E TD mm m o o E e e e o _ m m e m mH EE Rr e TO E O E HF E CO E M E O ek ae a ee e e a e e me e e e e o o o ee ee e o o e e oe e e e o oe oe e oe ee ee e e ee ee ee ae ee technology i NexSens Technology Inc TABLE OF CONTENTS E Sensor OPETAN sairia ssa ana tae E E 3 1 1 DEL Temperature Sensor ar assa pilas a E E 3 Paw WOrpr pbb Temperaire SENSOR anit E E NT 3 LEZ Malano pr Sensor MeaSu FCMS sina ion eliana basta o radar dd a gee seaadntauaes 4 Lio Maintenance and Caicara sida asia ed Ega li spc rbd caia Ab Sana doa aaa tesguaeenigen 7 kiA pH Sensor Troubleshooting Guide assepsia EE R 9 2 SOWE OV CT OOM nr i rE ENE TEO AEE EENET E Il 2 1 VY Chis eed Wy EI A ho Sti adia a aie a see eoee 11 Zed WataV alidation and RE V1C W ssaicsires ceive sohedeucdehreUasaunedatintonisinutedntadne tuned sanidade 14 Za Chancino SOU Ware SCHNE Suena iets ech elds asa ia ai actos AG 16 Dee O CICICEn IDEAL partia reat2. Controller WQ Sensor User s Manual 31 NexSens Technology Inc Right click on the device and select Update Driver This will restart the Found New Hardware Wizard Go back to step one and follow to install the driver E Device Manager File Action View Help 8 2 ARA 3 Floppy disk controllers JA Floppy disk drives gj Human Interface Devices E IDE ATA ATAPI controllers gt Keyboards gt Mice and other pointing devices Monitors BB Network adapters Ports COM amp LPT MB Processors amp SCSI and RAID controllers Sound video and game controllers System devices Universal Serial Bus controllers USB USB F USB F USB F VIAR Scan for hardware changes troller VIAR troller val Properties Update Driver Disable R Uninstall Launches the Hardware Update Wizard for the selected device If you need further assistance call a NexSens Support Representative at 937 426 2151 or email us at info NexSens com I nstallation for Windows Vista In Windows Vista driver installation is automatic You may see a small screen pop up on the bottom right hand corner of the screen for the first few seconds the device is plugged in after which it will appear in the software WQ Sensor User s Manual 32 r ee tt 1328 Parkway Court Beavercreek Ohio 45432 937 426 2703 www nexsens com
3. Enter the calibrated value 4 Click the Calibrate button again to complete the change A short animation with the letter C will display on the bottom left hand corner of the screen Temperature and mV values cannot be calibrated except for calibration of ORP This calibration is stored on the sensor which means that the sensor can be calibrated on one computer and still returned calibrated results no matter which other computers it is used on Refer to the calibration guidelines in the sensor sections earlier in this manual for information on when and what values to calibrate with CEF a7 aw ZII aT SE File Sensors Settings Library Calibrate d by NexSens Technology WQ Sensor User s Manual 13 NexSens Technology Inc 2 2 Data Validation and Review Good Laboratory Practice Files WQSensors software automatically records every calibration to a Good Laboratory Practice GLP file The GLP file will include the time data sample readings and diagnostic data for each calibration This file is stored on the sensor and will carry over from PC to PC U CEF ay aw ZII td File Sensors Settings Library d by NexSens Technology WQ Sensor User s Manual 14 NexSens Technology Inc Data Reports Data is stored inside WQSensors software project files and can be viewed in graphical statistical and tabular formats To view this data click the View button then click the Report button Select the desired report options a
4. affect its safety or effectiveness Authorized U S Service Centers Corporate Headquarters NexSens Technology Inc 1328 Parkway Court Dayton Ohio 45432 Phone 937 426 2703 Fax 937 426 1125 E Mail support nexsens com WQSensors User s Manual 22 NexSens Technology Inc Appendix C Computer Requirements WQSensor Software requires the following minimum system configuration Pentium class PC 64 MB RAM 100 MB hard drive 2MB video card CD ROM drive for Software installation Adobe Flash Windows 2000 SP1 or higher or Windows XP Appendix D Step by Step Driver I nstallation After installation of the WQSensor Software USB communicate with the sensor will be enabled When the adapter is plugged in for the first time Windows will automatically recognize it and start the Found New Hardware wizard See the following sections for details Installation for Windows 2000 When the USB adapter is plugged in for the first time Windows will detect and start the Found New Hardware Wizard Found New Hardware Welcome to the Found New Hardware Wizard This wizard helps you install a device driver for a hardware device To continue click Next WQ Sensor User s Manual NexSens Technology Inc 2 Check the Search for suitable driver for my device option Click Next to continue Found New Hardware Wizard Install Hardware Device Drivers a device driver is a software
5. program that enables a hardware device to work with Sy an operating system This wizard will complete the installation for this device oy USB Device device driver is a software program that makes a hardware device work Windows needs driver files for your new device To locate driver files and complete the installation click Next What do you want the wizard to do Search for a suitable driver for my device recommended Display a list of the known drivers for this device so that can choose a specific driver lt Back Cancel 3a If the WQSensor installation CD is in the CD ROM drive place a check mark in the CD Rom drives option and click Next This is the recommended method if the WQSensor CD is available Windows will scan the CD and automatically install the driver 3b If the WQSensor software is unavailable or the software has been downloaded from the internet Check Specify a location and click Next Found New Hardware Wizard Locate Driver Files Where do you want Windows to search for driver files Search for driver files for the following hardware device oy USB Device The wizard searches for suitable drivers in its driver database on your computer and in any of the following optional search locations that you specify To start the search click Next If you are searching on a floppy disk or CD ROM drive insert the floppy disk or CD before clicking Next Optional
6. 08 5 14 31 PM 98 03 7 89 26 43 3 13 2008 5 14 32 PM 98 1 7 9 26 43 08C06142 DO DO 3 13 2008 5 14 33 PM 98 1 7 9 26 43 3 13 2008 5 14 34 PM 9e 1 zo 26 43 3 13 2008 5 14 35 PM 98 1 7 9 26 43 3 13 2008 5 14 36 PM 98 1 io 26 43 3 13 2008 5 14 37 PM 98 1 7 9 26 43 3 13 2008 5 14 38 PM 198 1 79 26 43 3 13 2008 5 14 39 PM 98 1 7 9 26 43 WQ Sensor User s Manual 15 NexSens Technology Inc 2 3 Changing Software Settings Customizable options are available in WQSensors software in the Application Settings menu Show introduction animation This option specifies whether to display the opening animation that plays each time WQSensors software is started Un checking this box will disable the software from playing the animation each time Remember last menu location This option specifies whether the WQSensors software should reload the last menu opened each time the WQSensors software starts Un checking this box will make the Sensors menu the default page when starting WQSensors software This feature is useful if a specific Library menu table or formula is used often Convert Celsius to Fahrenheit This option specifies whether to display temperature values in Celsius or Fahrenheit Un checking this box will display all temperature readings in degrees Fahrenheit Show mV values This option specifies whether the Sensors menu should display the mV readings from the sensors Un checking this box w
7. Technology Inc Making pH Measurements The quality of results depends on the quality and accuracy of the measurement technique and standards used Measurement Techniques Fresh buffer with ISA Stir all standards and samples consistently either manually or with stir plate WQ Sensor User s Manual 5 NexSens Technology Inc Calibrating pH Sensors When calibrating the WQ pH sensor you will have the option to perform a 1 point 2 point or 3 point calibration The pH values of the calibration buffers should bracket the pH of the sample For maximum accuracy a 3 point calibration is recommended 1 point calibration The 1 point calibration should be used only if adjusting a previous 2 or 3 point calibration 2 point calibration The 2 point calibration calibrates the pH probe using a buffer in the pH 7 range and another buffer in either the pH 4 or 10 range A 2 point calibration can be used if the pH of the sample is known to be either above or below 7 3 point calibration A 3 point calibration is recommended The 3 point calibration ensures maximum accuracy over the range of pH values The 3 point calibration uses a buffer in the pH 7 range and two additional buffers in the pH 4 and 10 range 1 Connect the WQ pH sensor to the PC via the USB connector 2 Rinse electrode with distilled or de ionized water blot dry and then place in the first Standard Current readings will appear on the screen 3 When rea
8. Unit Conversion SO ee SEE EE sip ala of ele Fle SEE EEE mb ecia cee ers 3y NexSens Technology mo EEE CASACOS SE Settings Library Help Chemical F Environmental Mechanical Electrical 3y NexSens Technology WQ Sensor User s Manual 18 NexSens Technology Inc 2 5 Help and Support WQSensors software integrates the internet into part of its functionality Software updates technical support and other information can be obtained in the Help menu CEF a7 aw EZ II td File Sensors Settings Library heip Manuals About NexSens Shop INFO Updates can also I by NexSens Technology Technical questions or comments NexSens technical staff can be reached right inside of the program Click on the Help button in the Help menu to send an email directly to NexSens technical support Be sure to include a name and email address that they can contact you with If you would prefer to be contacted by phone include that in the message along with your phone number CEF ag avi AI SE File Sensors Settings Library Help Updates Manuals About NexSens Shop d by NexSens Technology Note An internet connection is not required to run WQSensors software WQ Sensor User s Manual 19 NexSens Technology Inc 2 6 Working with Project Files When WQSensors software first runs it defaults to Project 1 This is simply a default name for the default project file Each project file cont
9. WQSensor software is unavailable or the software has been downloaded from the internet Check Specify a location and click Next Found New Hardware Wizard This wizard helps you install software for NexSens wOSensor wOQ TEMP If your hardware came with an installation CD lt 4 or floppy disk insert it now What do you want the wizard to do Install the software automatically Recommended St of specinc location advanced Click Next to continue Click Browse and go to the location of the driver By default the driver is located in C Program Files NexSens WQSensor Driver waqsensor inf Found New Hardware Wizard Please choose your search and installation options Search for the best driver in these locations Use the check boxes below to limit or expand the default search which includes local paths and removable media The best driver found will be installed Search removable media floppy CD ROM Include this location in the search C Program FilestNex5 ens iw JS ensorDriver Don t search will choose the driver to install Choose this option to select the device driver from a list Windows does not guarantee that the driver you choose will be the best match for your hardware Click Ok Browse For Folder B WQSensor 5 tmp O devlib H FirmwareUpdate 5 SampleDatabaseWalkthrou SoftwareUpdate il To view any subfolders click a plus sign abov
10. ains information about every sensor that was connected to the computer while that file was open as well as any data that was collected during that time as well CLE EG um E2025 YT 27 ees ieee Sensors Settings Library New Open Rename by NexSens Technology Creating new project files To create a new project for a specific experiment or study click the New button in the File menu and enter a project name Click OK when finished CEF ag aw EZITE p Sensors Settings Library Open Rename d by NexSens Technology WQ Sensor User s Manual 20 NexSens Technology Inc Open an existing project TO open a previously created project select Open from the File menu Select the project to open and click OK WQSensors software will begin using that project file as the current project CEF ag aw EZITE p Sensors Settings Library Rename d by NexSens Technology Renaming project files To rename the current project select Rename from the File menu Enter a new name and click OK To rename projects other than the current one simply select Open and select the project to be renamed from the list of existing projects This project can then be renamed on this tab ia ag SALA 2S eee i ene Sensors Settings Library red by NexSens Technology WQ Sensor User s Manual 21 NexSens Technology Inc Appendix Appendix A Material Safety Data Sheets Material Safety Data Sheets can be found at http w
11. ar dp aca Dr cheated DORA AA r DRA A Atlee 18 Za Fe ANG SU PO aran pp tan acacia 19 26 Workin with Project Piles aa do amd Si Sera ec de is a 20 PROTA cansa E RE RA E SR DO as aia 22 Appendix A Material Safety Data Sheets nseeneseesseessseseeessersserssersserssserssersserssessseesseess Ze Appendix B Warranty and Service cccccsessccceeeeceeecceseccnesccceuscceesccuesseseeseneeseseusseneesenes 22 Appendix C Computer Requirements rae aneia naaa aaraa aaea sanaaa drana iai 23 Appendix D Step by Step Driver Installation cc ccccccsesccceceeeeeeeceneceaeseceeeseeeenseeaeeeeaes 23 What is a WQSensor WQSensors offer the latest in smart sensor technology with direct computer interface An integral USB connector offers a simple hassle free connection without meters batteries or power supplies displaying the data in real time directly onto the PC Common water quality parameters include temperature dissolved oxygen pH ORP NO3 NH and Cl Every sensor ships with WQSensor Software which offers a simple graphical interface to the Smart sensors The software includes the popular NexSens SCIENCE LIBRARY with an interactive periodic table unit converter and other useful science utilities Download a FREE copy today Software Installation WQSensor Software is distributed on CD ROM The setup program starts automatically when the CD is inserted If the program does not load automatically you can manual
12. dings stabilize press the Calibrate button and click on the pH reading Enter the value of the first standard and press the Calibrate button 4 Rinse electrode with distilled or de ionized water blot dry and place in the second beaker Wait for the readings to stabilize this should take under 60 seconds 5 When readings stabilize press the Calibrate button and click on the pH reading Enter the value of the second standard and press the Calibrate button 6 Rinse electrode with distilled or de ionized water blot dry and place in the third beaker Wait for the readings to stabilize this should take under 60 seconds 7 When readings stabilize press the Calibrate button and click on the pH reading Enter the value of the third standard and press the Calibrate button The calibration process is now complete The probe should be calibrated at least once a week WQ Sensor User s Manual 6 NexSens Technology Inc 1 1 3 Maintenance and Care Sensor Module Assembly DH Double junction gt Temperature Wi Sensor N Y Reference L ii junction q Glass bulb WQ Sensor User s Manual X USB Connection NexSens Technology Inc Sensor Storage Short Term Storage Between measurements store the pH electrode in a beaker containing pH 4 00 buffer Long Term Storage When storing for longer periods store the pH electrode in the storage bottle which came with the electrode The storage bottle sho
13. e WQ Sensor User s Manual 28 NexSens Technology Inc 3 If the following dialog box appears click Continue Anyway Hardware Installation PIN The software you are installing for this hardware NexSens WOSensor has not passed Windows Logo testing to verify its compatibility with Windows xP Tell me why this is i testing Is important Continuing your installation of this software may impair or destabilize the correct operation of your system either immediately or in the future Microsoft strongly recommends that you stop this installation now and contact the hardware vendor for software that has passed Windows Logo testing Continue Anyway STOP Installation 4 Windows will search for the driver Found New Hardware Wizard Found New Hardware Wizard Please wait while the wizard searches Please wait while the wizard installs the software op NexSens WOSensor wOQ TEMP e NexSens WOSensor Cy im Setting 4 system restore point and backing up old files in case your system needs to be restored in the future Completing the Found New Hardware Wizard The wizard has finished installing the software for aa NexSens WOSensor Note The above steps only need to be completed successfully once Click Finish to close the wizard Finish WQ Sensor User s Manual 29 NexSens Technology Inc If for any reason the followin
14. e WQ BOT WQSensor storage bottle e WQSensor LITE Software amp Knowledge Library CD e WQSensor Quick Start Guide WQ pH Sensor Specifications pH Range 0 14 pH Temperature Measurement O to 50 C Temperature Accuracy 0 2 C Junction Type Double J unction Size Electrode length 155 mm Body Diameter 12 mm Cap Diameter 16 mm Cable Length 6 ft WQ Sensor User s Manual 3 NexSens Technology Inc 1 1 2 Making pH Sensor Measurements Preparing pH Sensors for Measurement WQ pH sensors are shipped with the pH bulb moist Prior to using your WQ pH for the first time follow these three steps to condition your electrode 1 Remove the protective cap or boot from the bottom of the electrode and rinse the electrode with distilled or de ionized water Note Keep the protective cap or boot for use later during storage 2 Place the electrode in a beaker containing 4 0 pH buffer or 4 0 M KCI Soak for 20 minutes 3 After conditioning the electrode for 20 minutes rinse the electrode with distilled or de ionized water The electrode is now ready for calibration and to measure pH Note When handling pH electrodes rinse the electrodes with distilled water before and after measuring a sample Blot the end of the electrode with lint free cloth to remove excess water Never wipe the electrode to remove excess water wiping can create static charges that interfere with correct pH measurement WQ Sensor User s Manual 4 NexSens
15. g window appears Hardware Update Wizard Cannot Install this Hardware There was a problem installing this hardware a USB Device An error occurred during the installation of the device The driver cannot be installed because it is either not digitally signed or not signed in the appropriate manner Contact your hardware vendor Click Finish to close the wizard Finish The driver will need to be reinstalled Typically Windows will not redisplay the Found New Hardware wizard automatically again Therefore Windows Device Manager will have to be used The Device Manager can be accessed by going to the Start menu and clicking on Control Panel Click on the file labeled System C Control Panel Joe Re File Edit View Favorites Tools Help Es i A Search E Folders z Address Ip Control Panel O lx Go accessibility Options af Speech SE Add Hardware tg symantec LiveUpdate Add or Remove Programs 4g System ag Administrative Tools wl Taskbar and Start Menu E Automatic Updates B User Accounts E Windows CardSpace E Windows Firewall Cj Folder Options 22 Wireless Network Setup Wizard EA Fonts Game Controllers Dy Internet Options Java eakeyboard CR mail Mouse O Network Connections bi Network Setup Wizard Es Phone and Modem Options Ss Power Options gPrinters and Faxes EM program Updates Regional and Language Options Sy Scanners a
16. ill disable the display of mV values mV readings are diagnostic information and are not required to take measurements They are useful however in determining sensor performance and calibration CEF ag aw EZITE File Sensors Settings Library Interval Application WQ DO Sensor 1 by NexSens Technology WQ Sensor User s Manual 16 NexSens Technology Inc Changing Log Interval The intervals at which the sensor logs data can be changed in the Software Logging Interval menu Clicking the Interval button on the Settings menu displays the current log interval in seconds To change the interval enter a new value and click Apply CEF 7 aw EZITE File Sensors Settings Library Interval Application WQ DO Sensor NexSens Technology Please see the Logging Data section for starting and stopping this feature WQ Sensor User s Manual NexSens Technology Inc 2 4 Science Library The WQSensor software Library menu is a desktop reference for water wastewater and environmental professionals It s packed with tables calculations and many conversions Features include e Converting units of measure Calculating flow over a weir Determining the inside diameter of PVC pipe Finding the ammonia tolerance level for rainbow trout Determining the atomic weight of bromine Finding the concentrations of elements in sea water And much more CEF a7 aw ZII td File Settings Environmental Mechanical Electrical
17. lems arise it could save hours of troubleshooting Errors may result from contamination of prepared standards Keep all standards tightly covered when not in use WQ Sensor User s Manual 9 NexSens Technology Inc Samples If the electrodes work properly in standards but not in samples there may be interfering ions complexing agents or substances which could affect responses If possible determine the composition of the samples and use the appropriate complexing agents for interfering ions Check that the value of the solution is within the operating range of the probe Be sure that the expected concentration of the sample is within the measurement range of the probe Technique Closely follow the methods described in the Making pH Measurements WQ Sensor User s Manual 10 NexSens Technology Inc 2 Software Operation 2 1 Working with Data After running WQSensors software and connecting a WQSensor real time data can be viewed in the Sensors menu When a single sensor is connected it will be displayed as shown The serial number of the sensor as well as the time of last obtained reading is displayed on the bottom of the screen CEF ag aw EZITE E File gensors Settings Library Calibrate Log oy NexSens Technology If multiple sensors are connected they will be displayed in a tabular format as shown Numerical buttons on the bottom of the screen allow scrolling through each panel of four sensor
18. ly start the setup process by running Setup exe from the CD ROM drive We suggest that you accept the default options presented by the WQSensor Software setup program Uninstalling WQSensors Software If you need to uninstall WQSensor Software click Settings in the Start Menu Select Control Panel followed by Add Remove Programs Follow the step by step instructions to remove WQSensor Software and all associated files WQ Sensor User s Manual 2 NexSens Technology Inc 1 Sensor Operation 1 1 pH amp Temperature Sensors 1 1 1 WQ pH pH amp Temperature Sensor WQSensor probes come ready to go and with most of the accessories you will need Additionally you will need pH buffers and calibration beakers or containers These items should be located in any lab where WQSensors will be used or they can be purchased from a local chemical supplier These supplies may also be purchased from a NexSens Technology dealer http www nexsens com company where_to_buy htm WQ pH Sensors Constructed with impact resistant polycarbonate gel electrolyte double junction and full pH range glass this WQSensor is ready for thousands of measurements An integral temperature sensor automatically compensates pH readings for Sample temperature An internally stored unique ID and GLP file ensures quality data and tracks calibration status pH Package Includes e WQ pH pH amp temperature sensor with 6 feet of cable and integral USB connector
19. nd Cameras E Scheduled Tasks Security Center ER SigmaTel Audio B Sounds and Audio Devices WQ Sensor User s Manual 30 NexSens Technology Inc The System Properties dialog box will appear Go to the Hardware tab and click Device Manager System Properties System Restore IL Remote General Computer Name i Advanced Device Manager The Device Manager lists all the hardware devices installed a on your computer Use the Device Manager to change the properties of any device Drivers Driver Signing lets you make sure that installed drivers are ro compatible with Windows Windows Update lets you set up how Windows connects to Windows Update for drivers Hardware Profiles ss Hardware profiles provide a way for you to set up and store zi different hardware configurations Hardware Profiles 4 Device Manager File Action View Help e amp zmag 4 Floppy disk controllers J Floppy disk drives iy Human Interface Devices 4 IDE ATA ATAPI controllers ae Keyboards Mice and other pointing devices Monitors BB Network adapters Ports COM amp LPT MB Processors amp SCSI and RAID controllers Sound video and game controllers System devices Universal Serial Bus controllers USB Root Hub USB Root Hub USB Root Hub YIA Rev 5 or later USB Universal Host Controller YIA Rev 5 or later USB Universal Host Controller YIA USB Enhanced Host
20. nd then click Generate CEF ag aw EZITE File Sensors Settings Library 3y NexSens Technology H2skon Haxon mee E 08C06142 DO NEXSENS Sample Date Time DOSat DO Temperature technology lem mg L le l 3 13 2008 5 14 08 PM 98 04 7 89 26 42 3 13 2008 5 14 10 PM 98 04 17 89 26 42 3 13 2008 5 14 11 PM 98 04 17 89 26 42 3 13 2008 5 14 12 PM 98 04 7 89 26 42 3 13 2008 5 14 13 PM 98 04 17 89 26 43 3 13 2008 5 14 14 PM 98 04 7 89 26 43 3 13 2008 5 14 15 PM 98 03 7 89 26 43 3 13 2008 5 14 16 PM 98 03 17 89 26 43 3 13 2008 5 14 17 PM 98 03 7 89 26 43 08C06142 DO DOSat 3 13 2008 5 14 18 PM 98 03 7 89 26 43 3 13 2008 5 14 19 PM 98 03 7 89 26 43 3 13 2008 5 14 20 PM 98 03 7 89 26 43 3 13 2008 5 14 21 PM 98 03 7 89 26 43 3 13 2008 5 14 22 PM 98 1 io 26 43 3 13 2008 5 14 23 PM 98 1 7 9 26 43 3 13 2008 5 14 24 PM 98 1 7 9 26 43 3 13 2008 5 14 25 PM 98 03 7 89 26 43 3 13 2008 5 14 26 PM 98 1 7 9 26 43 3 13 2008 5 14 27 PM 98 1 7 9 26 43 3 13 2008 5 14 28 PM 98 1 7 9 26 43 3 13 2008 5 14 29 PM 98 1 7 9 26 43 Date Range Report Summary Start Date 3 13 2008 5 14 08 PM Project Project_13 End Date 3 13 2008 5 14 35 PM Author NexSens Technology Devices in Report ima Description 08C06142 DO Data Graph violslalnlalwlmim DOSat 5 14 08 PM 51413PM S1418PM 51423PM 5 1428PM 5 14 33 PM 3 13 2008 5 14 30 PM 98 1 7 9 26 43 Date 3 13 20
21. s CEF ag aw 28925 2 File Sensors Settings Library Calibrate Log 07B12345 TEST Last 2 13 2008 10 05 43 AM 07B12345 TEST Last 2 13 2008 10 05 43 AM Lo ED 3y NexSens Technology WQ Sensor User s Manual 11 NexSens Technology Inc Logging Data Data can be logged either as single measurements or as a stream of measurements over user specified time intervals This interval can be specified by clicking the Interval button in the Settings menu Logged data can be viewed by clicking the Report button in the View menu To log a single data point click on the left hand side of the Log button The left side of the button will turn blue and a short animation with the letter L will display on the bottom left hand corner of the screen CEF ag AEDI td File Sensors Settings Library Calibrate red by NexSens Technology To start logging continuous measurements at the user defined interval click on the right hand side of the Log button The entire button will turn blue and at the log interval a short animation with the letter L will display on the bottom left hand corner of the screen CEF EF aw EZITE td File gensors Settings Library Calibrate d by NexSens Technology WQ Sensor User s Manual 12 NexSens Technology Inc Calibrating Sensor Readings To calibrate Sensor Readings 1 Click on the Calibrate button 2 Select the parameter reading to calibrate as shown below 3
22. search locations Hoppy disk drives CD ROM drives MV Specify a location I Microsoft Windows Update E e Pp Back Cancel WQ Sensor User s Manual 24 NexSens Technology Inc Click Browse and go to the location of the driver By default the driver is located in C Program Files NexSens WQSensonr Driver waqsensor inf Click Open Locate File am SCS SPreinstaller exe setup ini silib sys wasensor inf E wqasensor sys P wasuninZk exe P wasunin exe My Computer Was wasensor inf o lt H My Network P Setupinomaton inf Click OK to continue Found New Hardware Wizard a a C Program Files NexSens driver Da 4 Once Windows has successfully found the driver click Next Found New Hardware Wizard Driver Files Search Results The wizard has finished searching for driver files for your hardware device WQ Sensor User s Manual 25 NexSens Technology Inc 5 Click Finish in the following window Make sure that the driver has been successfully installed Found New Hardware Wizard Completing the Found New Hardware Wizard LY NexSens WOSensor Windows has finished installing the software for this device To close this wizard click Finish i Bancel Note The above steps only need to be completed successfully once WQ Sensor User s Manual NexSens Technology Inc Installation for Windo
23. sing a soft cloth to gently wipe the pH glass remember that pH glass is extremely delicate and breaks very easily Inorganic Salts Wash in 0 1M HCl or EDTA DO NOT SOAK rinse with distilled water Greasy Films Wash in acetone or methanol DO NOT SOAK wash with liquid soap then rinse with distilled water After cleaning place the electrode in the sensor storage solution or pH 4 buffer for 15 minutes prior to use WQ Sensor User s Manual 8 NexSens Technology Inc 1 1 4 pH Sensor Troubleshooting Guide Problems may arise due to errors with Electrode function Standards Samples Technique Follow the steps below to isolate the source of the problem Electrode Function For pH there should be a difference of 150 to 210 mV between pH 4 and 7 as well as between pH 7 and 10 Observing the mV values provides the best means for checking electrode performance mV values are recorded during the calibration procedure Check calibration values in the glp file or follow the procedure in the calibration section If the mV difference is not within the normal range follow the Cleaning and Reconditioning procedures described in the Cleaning and Reconditioning section If the electrode slope is still outside the normal range after this procedure please contact the NexSens Technical Service Department for assessment Standards The quality of results depends greatly upon the quality of the standards Use fresh standards when prob
24. uld contain either commercially prepared storage solution or a 1 1 solution of pH 4 buffer and 4M KCI Ensure that the foam or cotton ball in the storage bottle is thoroughly wetted with storage solution to maintain a moist environment around the pH bulb and junction Do not store the electrode in distilled or deionized water this will cause ions to leach out of the glass bulb and render your sensor useless After storage you may notice white KCI crystals deposited on your electrode Such salt formation will not interfere with measurements Simply rinse the electrode with distilled water to remove the crystals and blot dry before use Cleaning and Reconditioning As the WQ pH sensor ages it may exhibit sluggish or noisy readings The following procedures may improve performance Reference Electrode Problems A blocked reference junction is the most common problem of pH measurements Symptoms include a slow response off scale and noisy readings Soak the WQ pH sensor in a beaker of warm water 50 C for 15 minutes to remove dried gel or Salts from the junction Then place in a beaker of warm 4M KCI solution Set aside until it returns to room temperature The gel should be moist and the junction flow should be restored Glass Bulb Problems The glass bulb of the pH probe will get dirty over time We suggest the following solutions for cleaning Protein Wash in a solution of liquid soap about 1 2 teaspoon per 200mL warm water u
25. ws XP When the USB adapter is plugged in for the first time Windows will detect and start the Found New Hardware Wizard i Found New Hardware NexSens WQSensor WQ TEMP 1 Select No not this time and click Next when the Found New Hardware Wizard appears Found New Hardware Wizard Welcome to the Found New Hardware Wizard Windows will search for current and updated software by looking on your computer on the hardware installation CD or on the Windows Update Web site with your permission geseeeeneccessccesescescsssesseecsessscessssesscssenes m Can Windows connect to Windows Update to search for software Yes this time only Yes now and every time connect a device O No not this time Click Next to continue Cancel SS 2a If the WQSensor installation CD is in the CD ROM drive then click the Install the Software automatically option and click Next This is the recommended method if the WQSensor CD is available Windows will scan the CD and automatically install the driver Found New Hardware Wizard This wizard helps you install software for NexSens wOSensor wWOQ TEMP If your hardware came with an installation CD lt 4 or floppy disk insert it now What do you want the wizard to do Install from a list or specific location Advanced Click Next to continue WQ Sensor User s Manual NexSens Technology Inc 2b If the
26. ww nexsens com support msds htm Appendix B Warranty and Service NexSens Technology Inc warrants WQSensors against defects in materials or workmanship for a period of 6 months from the date of delivery to the original customer This warranty Is limited to the replacement or repair of such defects without charge when the instrument is returned to NexSens Technology Inc Damage due to accidents misuse tampering lack of reasonable care loss of parts failure to perform prescribed maintenance or accidents of nature are not covered This warranty excludes all other warranties express or implied and Is limited to a value not exceeding the purchase price of the instrument Limitation of Warranty This warranty is not applicable to any NexSens Technology Inc product damage or failure caused by i failure to install operate or use the product in accordance with NexSens Technology Inc written instructions ii abuse or misuse of the product iii failure to maintain the product in accordance with NexSens Technology Inc written instructions iv any improper repairs to the product v use by you of defective or improper components or parts in servicing or repairing the product or vi modification of the product in any way not expressly authorized by NexSens Technology Inc Warning NexSens Technology Inc products are not authorized for use as critical components in any life support system where failure of the product is likely to
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