For Sales & Service Contact
Contents
1. NexSens Technology Inc Air Calibration The two methods described below may be used to achieve a 100 air saturated environment Method 1 Fill a clean beaker with distilled water Bubble air through the water while stirring for 20 minutes This will saturate the water with air Method 2 Place a small amount of distilled water in the calibration bottle Insert the electrode into the cap of the bottle Place the cap on calibration bottle loosely so that it remains vented to the atmosphere Allow the electrode to sit in the calibration bottle for 20 minutes The air in the bottle will be saturated with water Use either Method 1 or 2 to obtain a 100 air saturated environment for the WQ DO calibration 1 Connect the dissolved oxygen probe to the PC via the USB connector 2 Let the dissolved oxygen probe warm up for 15 30 minutes before calibration During the warm up time place the dissolved oxygen probe in a 100 air saturated environment Method 1 or 2 above 3 After the probe has warmed up for 15 30 minutes in a 100 air Saturated environment click the Calibrate button and click on the DO Saturation reading 4 Enter the barometric pressure reading and click OK to calibrate CEF ag aw ZII 2 E Sensors Settings Library Calibrate Log NexSens Technology WQ Sensor User s Manual 8 NexSens Technology Inc In Situ Calibration If you have a solution of known dissolved oxygen concentration reading verified wi2. www nexsens com company where_to_buy htm WQ DO Sensor Based on the US EPA approved method 360 1 this polarographic WQSensor is designed for laboratory accuracy Probe maintenance is minimal and simple with a screw on cap membrane An integral temperature sensor automatically compensates dissolved oxygen readings for sample temperature An internally stored unique ID and GLP file ensures quality data and tracks calibration and sensor status Dissolved Oxygen Package Includes e WQ DO Dissolved oxygen amp temperature sensor with 6 feet of cable and integral USB connector Dissolved Oxygen storage bottle Electrolyte Filling Solution Polishing Strips Membrane Cap WQSensor Software amp Knowledge Library CD WQSensor Quick Start Guide WQ DO Sensor Specifications Concentration Range 0 to 200 0 20mg L O Temperature Range 0 to 50 C Temperature Accuracy t 0 2 C DO Response Time 98 of full response in 60 seconds at 25 C DO Reproducibility 2 Size Electrode length 150 mm Body Diameter 12 mm Cap Membrane 16 mm OD x 30 mm L Cable Length 6 ft WQSensors User s Manual NexSens Technology Inc 1 1 2 Making DO Sensor Measurements Preparing DO Sensors for Measurements Note When preparing the sensor be careful not to touch the membrane with your fingers The oils on your skin can affect the dissolution of oxygen through the membrane and in turn affect the readings of the sensor l gt A Unscre
3. Connections be Network Setup Wizard I Phone and Modem Options Power Options ba Printers and Faxes El program Updates Regional and Language Options Sy Scanners and Cameras scheduled Tasks Security Center Ra SigmaTel Audio 1 Sounds and Audio Devices WQ Sensor User s Manual 33 NexSens Technology Inc The System Properties dialog box will appear Go to the Hardware tab and click Device Manager System Properties System Restore LL 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 ee Driver Signing lets you make sure that installed drivers are Eo compatible with Windows Windows Update lets you set up how Windows connects to Windows Update for drivers Hardware Profiles Hardware profiles provide a way for you to set up and store ez different hardware configurations Hardware Profiles 4 Device Manager File Action View Help e amp E zmag 4 Floppy disk controllers Floppy disk drives Wi Human Interface Devices IDE ATAJATAPI controllers Keyboards Mice and other pointing devices Monitors BB Network adapters Y Ports COM amp LPT MB Processors amp SCSI and RAID controllers Sound video and gam
4. 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 will 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 CIEL ag aw EZITE File Sensors Settings Library Interval Application WQ DO Sensor 4 by NexSens Technology WQ Sensor User s Manual 19 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 VIP 7 ae 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
5. If the electrode does not read near 0 or near 100 in the respective solutions polish the electrode following the instructions in the Cleaning and Reconditioning section Prepare new solutions and repeat the test If the electrode percentages are still outside the normal range after this procedure the probe may need to be sent in for assessment WQ Sensor User s Manual 12 NexSens Technology Inc Technique 1 Closely follow the methods described in the Making DO Sensor Measurements section 2 Closely inspect the membrane for any punctures tears or fouling 3 Replace DO electrolyte solution in cap with new solution 4 Check for deposits on silver anode or platinum cathode Polish following the instructions in the Cleaning and Reconditioning section 5 Recalibrate Calibrate at a temperature within 102 C of the sample temperature Make sure the correct barometric pressure is entered Adjust salinity value as needed 6 Make sure to stir the probe continuously to provide fresh oxygen to the probe surface 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 a7 a ZII 2 a 2S File Sensors Settings Library Calibrate L
6. La O WA WRESTLE Software Powerful Software Smart Sensors 4 O 4 C O O D O gt Sa D dp o o 2 Y Sa O LL 2650 E 40th Ave e Denver CO 80205 Phone 303 320 4764 1242 e Fax 303 322 www geotechenv com in RI jnc je _ _ SS eee o en eo AEREE e ee ee ae SSS SE p PE technology NexSens Technology Inc TABLE OF CONTENTS i Sensor OPETAN lille 3 1 1 Dissolved Oxygen amp Temperature Sensofs anulare ae 3 1 1 1 WQ DO Dissolved Oxygen amp Temperature Sensor 3 LE2 Makne DO Sensor Mcasur Men orr a A 4 llko Mamntenimce and Cane soraio a E iii 10 1 1 4 Dissolved Oxygen Troubleshooting Guide ila aan 12 F SOMWNarcoOpedoliiunao AEE alia 13 2 1 Molde 13 Zed Data Validation and REVIOW crea 17 2 Chanoine SOU Ware SCHNE Suena a a teldaaadendereeeel a 19 Dee UCI r r logi 21 Za Fe ANG SU PO blr erearnersu archon ni oe id ia ca 22 26 Workme with Project Fieschi ddl ie 23 Anpeidio ae 25 Appendix A Material Safety Data She ts vii 25 Appendix B Warranty and Service o 25 Appendix C Computer Requirements ie 26 Appendix D Step by Step Driver Installation 26 What is a WQSensor WQSensors offer the latest in smart sensor technology with direct computer interface An integral USB connecto
7. ation is performed in a 100 saturated dissolved oxygen environment Air Calibration or in a known dissolved oxygen concentration solution In Situ Calibration In order to ensure proper polarization of the electrodes the probe must warm up for 15 30 minutes before calibrating 30 minutes is recommended The dissolved oxygen sensor should be calibrated as often as possible Each day before use is recommended Calibration drift can be checked by immersing the probe in a 100 saturated environment If the value has changed significantly since calibration recalibrate During air calibrations you will see your 100 saturation value change according to your corresponding barometric pressure and salinity values The saturation value falls below 100 at lower barometric pressures and higher salinities For instance when the barometric pressure drops to 745 mmHg the 100 saturation value will drop to around 98 For the most accurate readings salinity and barometric pressure readings can set in the Settings menu Cia ag SAD ALE ALL he Interval Application To see how salinity and temperature affect the Dissolved Oxygen reading click on the Library menu select Environmental and then Dissolved Oxygen Solubility As you can see at 25 degrees Celsius the difference of Oxygen in mg L can differ as much as 1 5mg L from freshwater 0 ppt salinity to salt water 35 ppt salinity Cia ag aw ALE ALL he WQ Sensor User s Manual 7
8. best match for vour hardware Click Ok Browse For Folder E wWosensor QD tmp D devlib H FirmwareUpdate 5 SampleDatabaseWalkthror O SoftwareUpdate TIT To view any subfolders click a plus sign above WQ Sensor User s Manual 31 NexSens Technology Inc 3 If the following dialog box appears click Continue Anyway Hardware Installation N The software you are installing for this hardware NexSens WOQSensor 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 i 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 2 NexSen
9. e controllers System devices Universal Serial Bus controllers USB Root Hub USB Root Hub USB Root Hub VIA Rev 5 or later USB Universal Host Controller VIA Rev 5 or later USB Universal Host Controller VIA USB Enhanced Host Controller WQ Sensor User s Manual 34 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 9 Device Manager Fie Action View Help 5 2 ARA Floppy disk controllers 12 Floppy disk drives gj Human Interface Devices IDE ATAJATAPI controllers 5 gt Keyboards Mice and other pointing devices Monitors BB Network adapters 5 Ports COM amp LPT MB Processors amp SCSI and RAID controllers Sound video and game controllers 8 System devices Universal Serial Bus controllers USB USB F USB F USB F VIAR Scan for hardware changes troller VIAR troller yan 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
10. e 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 Windows 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 X 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 qurreserazzezaaseneneaneazenaeneznenanesezanesenesenee m Can windows connect to Windows Update to search for software O Yes this time only O Yes now and every time connect a device O No not this time Click Next to continue Cancel n 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 22 or floppy disk i
11. ectrode Function Electrode function can be verified by testing the probe in an oxygen free environment and a 100 air saturated environment The two methods described below may be used to prepare an oxygen free solution Method 1 Fill a clean beaker with distilled water Bubble nitrogen gas through the water for 20 minutes This will remove all oxygen from the water Method 2 Fill a clean beaker with distilled water Add sodium sulfite to the water while stirring until no more of the compound dissolves This will remove the oxygen from the water Prepare an oxygen free solution and a 100 air saturated environment described in the Calibration section Then follow the procedure below 1 Connect the dissolved oxygen probe to the PC via the USB connector 2 Let the dissolved oxygen probe warm up for 15 30 minutes 3 During the warm up time in step 2 place the dissolved oxygen probe in the oxygen free solution Method 1 or 2 above 4 After the probe has warmed up for 15 30 minutes in the oxygen free solution record the saturation value 5 Place the probe in a 100 oxygen saturated environment described in the Calibration section 6 Wait for the readings to stabilize and record the saturation value The accuracy of this probe has been established at 2 in perfect conditions including flawless calibrating standards barometric pressure and salinity In typical laboratory settings the accuracy may be as low as 4
12. exSens 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 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 WOSensors User s Manual 25 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 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 Chec
13. exSens 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 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 ae ZII lt File Sensors Settings Library Calibrate d by NexSens Technology WQ Sensor User s Manual 16 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 a ZII lt File Sensors Settings Library di by NexSens Technology WQ Sensor User s Manual 17 NexSens Technology Inc Data Reports Data Is stored inside WQSensors software p
14. for rainbow trout Determining the atomic weight of bromine Finding the concentrations of elements in sea water And much more CEF a7 ae ZII ft File Settings Environmental Mechanical Electrical Unit Conversion AEEA FAE CEE Fle SEE EEE mb ecia cee ers 3y NexSens Technology na BEN LLLE IELAI EA ie Settings Library Help Chemical F Environmental Mechanical Electrical 3y NexSens Technology WQ Sensor User s Manual 21 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 a 2 II ft File Sensors Settings Library heip Manuals About NexSens Shop INFO Updates can also I d 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 aw EZITE File Sensors Settings Library heip 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 22 NexSens Technolog
15. he Membrane Cap may be placed on the electrode but do not tighten Store all parts securely in the original box When ready to use the probe again follow the instructions in the Preparing DO Sensors for Measurement section WQ Sensor User s Manual NexSens Technology Inc Cleaning and Reconditioning Over time deposits will develop on the silver anode and platinum cathode due to the reduction of oxygen These deposits are easily removed with the polishing strips supplied in your WQ DO sensor package l 2 Unscrew Membrane Cap at the bottom of the electrode Rinse the internal anode cathode element with distilled water blot dry Use the polishing strips provided with your sensor to polish the platinum cathode and silver anode Platinum cathode Place polishing strip on tip of sensor apply light finger pressure and twist in a circular motion Silver anode Wrap the polishing strip around anode and twist in a circular motion After polishing thoroughly rinse with distilled or de ionized water and blot dry Replace the Membrane Cap and fill the new one with DO electrolyte Finger tighten until snug Do not over tighten Rinse the assembled electrode with distilled water WQ Sensor User s Manual 11 NexSens Technology Inc 1 1 4 Dissolved Oxygen Troubleshooting Guide Problems may arise due to errors with e Electrode function e Technique Follow the steps below to isolate the source of the problem El
16. k the Search for suitable driver for my device option Click Next to continue Found New Hardware Wizard Install Hardware Device Drivers Pa te device driver is a software 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 4 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
17. n 08C06142 DO Data Graph ololyuiloalulplulnie DOSat 5 14 08 PM 5 14 13PM 5 14 18PM 5 14 23PM 5 1428PM_ 5 14 33 PM 3 13 2008 5 14 30 PM 98 1 7 9 26 43 Date 3 13 2008 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 13 13 2008 5 14 33 PM 98 1 7 9 26 43 3 13 2008 5 14 34 PM 98 1 7 9 26 43 3 13 2008 5 14 35 PM 98 1 7 9 26 43 3 13 2008 5 14 36 PM 198 1 17 9 26 43 3 13 2008 5 14 37 PM 98 1 7 9 26 43 3 13 2008 5 14 38 PM 98 1 z9 26 43 13 13 2008 5 14 39 PM 98 1 7 9 26 43 WQ Sensor User s Manual 18 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
18. nsert it now What do you want the wizard to do Install from a list or specific location Advanced Click Next to continue J WQ Sensor User s Manual NexSens Technology Inc 2b 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 This wizard helps you install software for NexSens wOSensor wOQ TEMP If your hardware came with an installation CD 22 or floppy disk insert it now What do you want the wizard to do O Install the software automatically Recommended IST OF specinc location AdYanceo 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 Files NexSens WGSensor Driver 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
19. og di by 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 sensors WQ Sensor User s Manual 13 NexSens Technology Inc Cia 7 aw EZITE OT 2 File Sensors Calibrate Log WQ Sensor User s Manual Settings Library NexSens Technology 14 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 ae ZII ft 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 47 aw EZITE ft File gensors Settings Library Calibrate d by NexSens Technology WQ Sensor User s Manual 15 N
20. r 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 NO 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 manually 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 WQSensors User s Manual 2 NexSens Technology Inc 1 Sensor Operation 1 1 Dissolved Oxygen amp Temperature Sensors 1 1 1 WQ DO Dissolved Oxygen amp Temperature Sensor WQSensor probes come ready to go out of the box Accessories and maintenance items may be purchased from a NexSens Technology dealer http
21. roject 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 and then click Generate CEF ag aw EZITE File Sensors Settings Library 3y NexSens Technology H2skon Haxon n a 08C06142 DO NEXSENS Sample Date Time DOSat DO Temperature technology A 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 7 89 26 42 3 13 2008 5 14 11 PM 98 04 17 89 26 42 3 13 2008 5 14 12 PM 198 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 13 13 2008 5 14 15 PM 198 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 198 03 7 89 26 43 08C06142 DO DOSat 3 13 2008 5 14 18 PM 198 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 198 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 l7 9 26 43 3 13 2008 5 14 23 PM 198 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 Descriptio
22. s WOSensor Note The above steps only need to be completed successfully once Click Finish to close the wizard Finish WQ Sensor User s Manual 32 NexSens Technology Inc If for any reason the following window appears Hardware Update Wizard Cannot Install this Hardware There was a problem installing this hardware 2 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 Joka de File Edit View Favorites Tools Help id PI Search Wea Folders z Address Control Panel e el Go accessibility Options af Speech SE Add Hardware tg symantec LiveUpdate Add or Remove Programs 49 System ag Administrative Tools wl Taskbar and Start Menu EAN Automatic Updates 80 User Accounts FF Windows CardSpace E Windows Firewall 4 Folder Options 22 Wireless Network Setup Wizard EA Fonts Game Controllers Internet Options Java Keyboard CB mail Mouse Network
23. 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 search locations Floppy disk drives CD ROM drives MV Specify a location M Microsoft Windows Update Tir ecvccccesccsvcvscssecesssccsesceesecsssesseesssosesesceeees lt Back Cancel WQ Sensor User s Manual 27 NexSens Technology Inc Click Browse and go to the location of the driver By default the driver is located in C Program Files NexSens WQSensor Driver wqsensor inf Click Open Locate File am SCS BPreInstaller exe setup ini silib sys wasensor inf E wqasensor sys wasunin2k 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 E C Program Files NexSens driver bi 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 28 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 gt NexSens WOSensor Windows has finished installing th
24. th another calibrated meter or WQ DO Sensor you can calibrate per the mg L 1 Connect the dissolved oxygen probe to the PC via the USB connector 2 Let the dissolved oxygen probe warm up for 15 30 minutes before calibration During the warm up time place the sensor into the known solution and allow the probe to Stabilize 3 After the readings are stable press the Calibrate button and click on the mg L reading 4 Enter the known mg L reading and click the Calibrate button again CEF ay a EZ IIE AT 2S File Sensors Settings Library Calibrate Log d by NexSens Technology If measuring dissolved oxygen in solutions that contain amounts of salinity such as salt water make sure the salinity setting is changed in the Settings menu WQ Sensor User s Manual 9 NexSens Technology Inc 1 1 3 Maintenance and Care Sensing Module Assembly Silver anode Platinum cathode Sensor Ti e Screw on cap membrane Sensor Storage Short Term 1 3 days The assembled electrode should be stored in a moist environment such as in the provided calibration storage bottle cup or in a beaker of water When storing in calibration storage cup place a small piece of sponge inside Moisten sponge with distilled or de ionized water Long Term Completely disassemble the electrode Rinse the anode cathode element and Membrane Cap with distilled or de ionized water Blot dry all of the parts T
25. w Membrane Cartridge at the bottom of the electrode Rinse the Membrane Cartridge with distilled water blot dry Rinse the internal anode cathode element with distilled water blot dry Fill Membrane Cartridge with the provided DO Electrolyte solution Replace the filled Membrane Cartridge Finger tighten until snug Do not over tighten Rinse the assembled electrode with distilled water Place the electrode in the electrode holder Immerse the tip of the electrode in de ionized water and stir the water for 5 minutes This will properly clean the electrode Dissolved Oxygen Sensor Platinum Seria cathode cap membrane i y _ USB Connection O Sensor tip WOSensors User s Manual 4 NexSens Technology Inc Making Dissolved Oxygen Measurements The quality of results depends on the quality and accuracy of the measurement technique and standards used The following guidelines are recommended L After plugging the sensor in allow the probe at least 15 to 30 minutes before calibrating or measuring Polarographic probes such as the WQ DO sensor need time to warm up to ensure proper polarization of the electrodes To ensure that the membrane has no air bubbles in the electrolyte solution always prepare the sensor as stated in the preparation section above The membrane caps are designed to release all air while the module is being installed Do not allow any air bubbles to be trapped on the exterior membrane surface as it
26. will read an air bubble as an oxygen saturated sample Calibrate your electrode at temperatures close to the sample temperature even though automatic temperature compensation ATC is used The temperature sensor on the side of the sensor if submerged can be used to the sample temperature This will reduce the error margin It is Important during measurement to stir the solution as oxygen consumption by the probe can momentarily reduce the oxygen concentration at the probe surface Stirring can be done manually or with a stir plate The Micro stirrer WQ STIR snaps onto any WQ sensor and Is a convenient way to provide motion near the probe surface Membranes wear out over time The life of the membrane will depend on the environment in which it is used Check regularly for any punctures tears or fouling residue WQSensors User s Manual 5 NexSens Technology Inc Measurement Techniques Allow a 15 30 minute warm up time before calibration or measurement Calibrate at temperature close to sample temperature within 10 C Temperature Check to make sure that sensor temperature sensor is submerged x SIA aeons erry alla ia a a Probe surface Micro stirrer Stir continuously to provide oxygen at probe surface either manually or with stir plate WQSensors User s Manual NexSens Technology Inc Calibrating Dissolved Oxygen Sensors The WQ DO sensor requires only a 1 point calibration Calibr
27. will appear in the software WQ Sensor User s Manual 35 e ee tt 1328 Parkway Court Beavercreek Ohio 45432 937 426 2703 www nexsens com
28. xSens Technology WQ Sensor User s Manual 24 NexSens Technology Inc Appendix Appendix A Material Safety Data Sheets Material Safety Data Sheets can be found at http www 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 N
29. y 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 contains 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 aw E2025 YT 27 ees i Sensors Settings Library New Open Rename d 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 CEL ag aw EZITE p Sensors Settings Library Open Rename d by NexSens Technology WQ Sensor User s Manual 23 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 ssf 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 aw EZ 2S a 2S eee i ene Sensors Settings Library red by Ne
Download Pdf Manuals
Related Search