Original LabQuest Reference Guide
Contents
1. Open or Export dialogs additional storage Open File Cancel open space on an SD card or a USB drive will show up as an En bee additional icons Tap to switch to the SD card or USB drive You will see any existing directories folders on the device Double tap to open a directory Tap the up arrow to go up a directory Tap the LabQuest icon to switch back to the internal storage space You cannot create directories within LabQuest App but you can use directories that already exist on the SD card or USB drive Tip Wait a few seconds before using the File menu after inserting a USB drive or an SD card for the LabQuest OS to find the device or the storage won t show up as available Tip Organize your files on a USB drive or SD card by creating any needed folders on a computer before you use the drive or card with LabQuest LabOuest Reference Meter Screen The Meter screen displays a digital meter for each sensor the current mode and the data collection parameters Several shortcuts are available on the Meter screen Tap on a meter to zero calibrate reverse or change units on its sensor Tap the Mode field to adjust data collection details 0271 Sensors Sensors Menu Sensor Setup Data Collection The Sensors menu gives access to detailed setup on 1 ro crenge Units Calibrate Length controls co Reverse Sensor Setup Use Sensor Setup to configure the internal microphone and internal temperature sensor2. and any analog sensors such as a pH sensor are read In this way the pH asa function SIRS mag of volume can be plotted 1E In any dialog that requires the entry of either text or Length numbers a keyboard will pop up as needed Tap the field into which you want to place text or numbers and Zero l Reverse tap the needed keys e Change Units Each sensor has its own set of available units for display To see the available choice choose Change Units choosing the sensor in question Choosing a new unit will change all existing runs for that sensor to the Serena Suz new unit as well as any subsequent runs You can Sensor Settings change units in the Sensors menu or in the meter O qwertyuiop 789 popup menu ABC asdf gh j kil 415 6 x t zixicivibinim 4 1 2 3 Calibrate te dl Vn 0 DER E Most sensors do not need to be calibrated as a factory 11 LabOuest Reference calibration for that sensor is read from the sensor when LabQuest identifies it However some sensors require calibration Calibration requires that you have two reference conditions available for a sensor For example for a pH jaaa cll jaaa salt cll sensor you might have buffers of pH 4 and 10 We will use that as an example here Choose calibrate selecting the particular sensor as necessary You will see the One point calibration calibration dialog Tap the Calibrate Now button to begin Place the pH sensor in the
3. you ll be prompted to either open or discard the temporary file When LabQuest turns on LabQuest App is restarted cleared of any previous data or sensor setup Care of LabQuest LabQuest Battery The LabQuest screen will dim after a few minutes of no use even during data collection However it will not turn itself off until the battery is almost discharged No data will be lost as LabQuest App will save a backup file before shutting down 23 LabOuest Reference Use only the supplied AC adapter to charge the LabOuest battery The LabQuest uses a high quality lithium ion battery This is the same chemistry used in premium laptop and cell phone batteries and you can expect similar performance There is never a need to condition the battery by regular full discharge charge cycles To optimize battery day to day battery life set the screen brightness to the minimum acceptable level and turn off the LabOuest when it is notin use Disconnect any sensots you ate not actively using Charge the LabQuest overnight before use to start the day with a full charge The battery takes about ten hours to completely charge It is safe to leave the battery charging indefinitely and there is no need to fully discharge the battery before charging Battery life will depend on the sensors used but in most cases you can obtain six or more hours of use of the LabQuest between charging For use with a computer either the battery must be char
4. Events with Entry Label the Entry column as Concentration with units of mol L 6 Start data collection place the lowest concentration cuvette in the spectrometer 7 Tap Keep enter the concentration when prompted 6 Putin the next sample tap Keep and enter that concentration Repeat this step for all samples 9 Tap Stop 10 Inspect your graph of absorbance versus concentration If desired fit a linear function to the data After a linear fit has been performed you can also interpolate between aar data points using Interpolate from the Analyze KG tt 0 menu This lets you estimate the concentration Samples to Average 10 of an unknown sample using a reading on the pee ween meter screen Full Spectrum v Settings for Full Spectrum Mode The Data Collection dialog for Full Spectrum Mode contains several settings for advanced users Data Collection Cancei ok 2 11 39AM 19 LabOuest Reference Sample Time The Sample Time adjusts how long the spectrometer collects light for each sample This value is set by the calibration routine so changing it subsequently will ruin the calibration Altering this value is useful for intensity measurements to keep peaks in range Wavelength Smoothing Wavelength Smoothing adjusts the number of adjacent readings on either side of a given value that are used to calculate an average value Increasing this number will smooth a full spectrum effectively reducing the w
5. Options tap OK to return to the Graph screen Show Graph The Show Graph menu item lets you quickly jump between the two graphs or both graphs 13 LabOuest Reference Strike Through Data Restore Data The Strike Through Data option allows you to ignore selected data Struck data are ignored for analysis and graphing Select a region on the graph then choose Strike Through Data The data are ignored To reverse this action choose Restore Data Autoscale Once Autoscale Once will set the graph ranges so that all points are plotted Zoom In Zoom Out You can view a smaller region of the graph by dragging across it to select and choosing Zoom In Zoom Out will reverse that zoom Analyze Menu A o l Tangent The Analyze menu gives access to additional tools such Integral as tangent lines integrals statistics and curve fits Those boli functions that depend on a set of data will operate on Curve Fit interpolate either the whole graph or just a portion of the data as selected by dragging the stylus across the graph If no ET selection is made the calculation will use the entire Motion Match range Volume mL ji F Pressure DN EEK 04 25PM The analysis information is shown on the right side of the screen Scroll arrows will appear if needed Tap the analysis information to show the values on a detail dialog for ease of reading The functions that include a checkbox for a sensor or column name are toggles To
6. Save lets you give the current LabOuest session a name a tarvas manisi and then writes it to the selected location This location Open File Cancel open could be the internal LabQuest memory an SD card or 4 EDE KEELT a USB drive Delete Delete displays the same list as Open but instead allows you to choose a file for deletion You can delete only one file at a time Export Export is used to create data files in text format for use with other applications A typical use of this is to save a text file to an SD card or a USB flash drive in order to open later in a computer spteadsheet An exported file contains all column values from all runs in the cuttent session View Lab Instructions View Lab Instructions displays a list of the built in laboratory instructions Print Print gt Graph Table My Notes Lab Instructions Screen These options send the chosen object to an attached HP printer Settings Settings controls options for the current session these settings are saved within a LabQuest file Calculated columns may use trigonometric calculations choose degrees or radians here The default is radians Derivative functions which are part of the automatic setup for Motion Detectors can be set to use a varying number of points for the calculation The default of 7 points is good for many experiments but you may want LabQuest Settings to choose a larger number for human scale gt MEELEL LabOuest Reference
7. defined number of events A block unblock pair counts as two events 10 LabOuest Reference Various photogate modes are available to set what LabQuest calculates from the raw block and unblock times The mode labeled None will generate a table of only the raw block and unblock times Mode Motion Timing Motion Timing is used for picket fences and ultra pulley experiments and yields position velocity and acceleration data The distance between block events can be set default values for common objects are already defined for you Mode Gate Timing A speed can be calculated from knowing the block to unblock time from an object of known length passing through a photogate In Gate Timing you enter a length in meters and LabQuest App finds the speed from the block to unblock time interval Mode Pulse Timing If you know the distance between a pair of photogates the block to block time interval can be used to find a speed Pulse timing finds a speed based on the block to block time interval and a distance entered Mode Pendulum Timing The period of a pendulum can be accurately determined if the pendulum bob passes through the gate LabQuest reports the time from a block event to the third block event ignoring the one in between so that a complete period is measured Mode Drop Counting Drop counting mode is a combination digital analog mode Each time a drop through a Vernier Drop Counter is detected a counter is incremented
8. enable the function choose the sensor or column name To disable the function choose the sensor or column name a second time Tangent of NUNES i Integral The Tangent mode enhances the Examine cursor by Statistics adding a tangent line and numeric display of slope as Fi you tap locations on the graph interpolate Model Inte ral Draw Prediction S Motion Match Select a region if needed and then choose Integral followed by the sensor or column name The Integral will be drawn and the numeric result displayed to the right of the graph Statistics Select a region if needed and then choose Statistics followed by the sensor or column name Descriptive statistics will be displayed to the right of the graph If a region is selected brackets are drawn to indicate the region used for calculations 4 EEK E 14 LabOuest Reference Curve Fit Curve Fit allows you to automatically fit a chosen function to your data If a region of the graph is selected only that region is used for fitting If there is no selection the entire width of the graph is used Choose the desired fit equation from Proportional Linear Quadratic Power and Natural Exponent On choosing the fit equation LabQuest will perform the fit and display the coefficients and Root Mean Square Curve Fit Error RMSE Tap OK to return to the main Graph Np A ESINES ET scteen Choose Curve Fit again to remove the fit Tip The RMSE root mean square e
9. pH 4 solution Let the reading stabilize a few seconds or until you see only PS small variations Use the keyboard to enter a 4in the Reading 1 known value field and tap Keep Place the pH sensor in the pH 10 solution Enter 10 in the Reading 2 field After the reading settles tap Keep Tap OK to complete the calibration 2 04 13PM The one point calibration option allows you to calibrate with only one reference This only introduces an offset in the reading but this is sometimes all that is needed Calibration of the Stainless Steel Temperature Probe and Surface Temperature Probe are not supported in LabQuest at this time The Units selection in the Calibration dialog allows you to alter the units of your calibration There are additional tabs on the Calibration dialog Equation lets you view or alter the numerical calibration information Tap Apply if you make changes to use the new values Storage lets you choose how the new calibration will be saved For example if you perform a calibration and want to go back to it later have the storage option checked to save the calibration with the LabQuest file Tap OK save the LabQuest file Later open that file and the calibration will be used The Sensor Info tab contains information from the auto ID chip on the sensor if present Tip Use Logger Pro to write custom calibrations back to the sensor so that the calibration will be used automatically whenever the sensor is us
10. 2 LabOuest Reference Hardware Keys on LabQuest The front panel of LabOuest contains keys that allow you to perform many tasks without a stylus The Collect button duplicates the on screen collect button The remaining buttons are e Escape Dismisses a menu ot dialog and takes no action e Screens Cycles through the screens of LabQuest App e Menu Pulls down the first menu available to see additional menus use the right arrow key Pugs e Home Displays the Home menu e OK Executes the selected action OK e Cursor keys Use these arrow keys to move through a menu or between A menus or to move the examine cursor across a graph The power button at upper left is used to place the LabQuest in a low power state and to wake it from that state The LabQuest is not completely off when in the low power state and so the battery will eventually discharge when left in this state If you have unsaved data when you press the LabQuest power button LabQuest App will prompt you to either save or discard the data before turning off Or if you press and hold the power button for more than five seconds LabQuest will turn off discarding any unsaved data LabQuest protects your data in low battery situations Shortly before the battery lacks sufficient charge to power LabQuest LabQuest App will end any data collection in progress and save data to a temporary file Later when LabQuest is recharged and LabQuest App restarts
11. Column Clear All Data Strike Through Data New Calculated Column creates a new column whose PES values are based on other columns by a mathematical formula For example you might define a calculated column as the inverse square of another column A calculated column can be used in graphs or in further calculated columns 28 i 04 30PM Data Column Options Data Column Options allow you to set the column name units and display precision Delete Data Column Delete Run and Clear AU Data a Delete Data Column Delete Run and Clear All Data allow you to remove columns runs or all of your data A Strike Through and Restore Data allow you to non Significant destructively ignore and restore data Select a row or rows in the data table and then use these commands You can also select data in a graph and use the same commands E a d 04 31PM 16 LabOuest Reference The Edit item allows you to copy and paste values from one place to another In particular you might copy a range of values and paste them into notes on the next screen called the Notes screen Tip To make a graph of data from other sources enter values in two manual columns and then plot them in a LabOuest graph Notes Screen The Notes screen is a place to enter and view text and images LabQuest includes over fifty prepared activities for use by students and you can enter your own notes as you perform an experiment wi M
12. M is included on the LabQuest CD It is also available for download from www vernier com labquest updates 24 LabOuest Reference The LOM is computer software that can be used to demonstrate the functions of a LabQuest on a computer Tip Use LOM to project the LabQuest for a group presentation The emulator performs almost all functions of the LabQuest itself including collecting data from a LabQuest unit connected to the computer Tip Use LQM to make screen shots for written documentation Most of the screen shots in this guide were made using LQM LQM is currently available for Windows XP and Vista only A Macintosh version is planned Update LabQuest Internal Software The LabQuest is a computer running its own version of the Linux operating system and the LabQuest App the Periodic Table and other features are programs that run in the operating system The LabQuest App will be updated from time to time to introduce new features and to improve performance Most users will want to run the latest version available Free updates ate available from www vernier com labquest updates Determine Internal Software Version From the Home menu choose Control Panel gt System Information Install LabQuest Updates Consult instructions at www vernier com labquest updates for details LabQuest devices can be upgraded either by placing certain files on a USB drive or SD card of using a computer Upgrade LabQuest using a
13. Power controls screen brightness and the time to dim screen A brighter screen users more battery power Reboot Restarts LabQuest Sound Sound controls sound output volumes for both the internal speaker and for any externally connected speakers System Information Displays the version numbers of installed software wee SV APARTO MAHON x There are multiple tabs in this display The Device tab Devi includes a button marked Display License that will t kel tas Bart Maar show the full text of the GPL software license The LabQuest App v1 1 0 _b 20080327 i A A A Copyright Vernier Software amp Technology 2007 Region tab contains a choice of display languages www vernier com Other Vernier Applications A Calculator v1 0 0 b 20080129 Time 8 Date Control Panel v110 b 20080318 M NGI Middleware Library v1 1 0 b 20080229 This item contains settings for time and date When NGIO Device Manager v1 1 1 b 20071219 8 NGIO Library 113 b 20080318 LabQuest is connected to a computer the internal 4 04 41PM clock is set automatically Set LabQuest Language LabQuest App can display menus in English French Italian Spanish and German To set the device Y mi System Information x language open the Control Panel described above and choose System Information Select the Region tab and choose the desired language A restart will be required pays Spanish French German Italian amp 04 42PM 2
14. USB drive 1 Browse to www vernier com labquest updates 2 Follow the link there to the update download and follow instructions found on the download page Upgrade LabQuest using a computer Computer based upgrades will be available beginning with Logger Pro 3 6 1 available in summer of 2008 25 LabOuest Reference Specifications LabQuest device 55 5 4 5 5 gt 4 4 a ce 5 a 7 cm x 5 3 cm 8 9 cm diagonal touch screen 320 x 240 pixel color graphic display Mass 350 g including battery 416 MHz Application Processor LED backlight Easily visible outdoors Excellent graphing and analysis capabilities Stylus and touch screen for navigation and user input 4 push buttons for quick function access 5 button navigation cluster On off switch On screen keyboard plus easy ability to take notes during experiments 50 embedded experiments Periodic table application Software stopwatch application Six channels for Vernier sensors USB Standard A port USB mini AB port DC power jack SD MMC expansion slot Audio In Microphone Out Rechargeable high capacity Li ion battery DC charging powering through external adapter included Data Acquisition SNS NS RN Works with most existing Vernier sensors 100kHz data collection rate one sensor 40 MB on board data storage with expansion through SD MMC card or USB drive 12 bit resolution Built in air temperature sensor microphone Additional LabQuest Not
15. Vernier LabQuest Reference Guide Version 1 1 A ee F gt Vernier LabOuest Reference LabOuest Reference Welcome to Vernier LabQuest LabQuest Reference Guide This is the LabQuest Reference Guide It is an extended guide to using the Vernier LabQuest Also available is the shorter LabQuest Quick Start Guide included in print in the LabQuest box An updated version of this Reference Guide may be available at http www vernier com labquest updates This guide is written for the second release of the LabQuest software version 1 1 released in April 2008 There will be additional updates to the LabQuest App and the LabQuest operating system See Install LabQuest Updates later in this guide for instructions The LabQuest Hardware Find the power button in the upper left corner and press it If the screen does not light after a moment connect the power adapter to LabQuest and to a power soutce LabQuest is controlled both by the touch screen and by the hardware keys below the screen The button you will use most often is the collect button PD located just below the screen On the left side of LabQuest are the audio ports and the power port used to recharge the battery On the right side are two digital sensor ports used for Motion Detectors Drop Counters and other digital sensors The top edge of LabQuest has four ports for sensors such as pH Temperature and Force Also on the top edge are a stylus st
16. alEsle File Notes The rough wood block displayed much highersliding friction than the metal bock To open one of the prepared activities choose View Lab Instructions from the File menu and select the desired file More than fifty popular experiments in Chemistry Physics Biology Earth Science and Water Quality are available GS qwertyuiope 7s9 Notes Menu ABC als di figih jikiI 4 s 6 x t zixicivibinim 1 2 3 The Notes menu allows you to toggle between the Lab HW 00 dns clams Instructions and your own notes called My Notes The 91 S d 04 32PM menu also gives access to standard edit commands of Cut Copy Paste and Clear All To enter text in My Notes tap the keyboard icon on the bottom row of the screen You can also attach a standard USB keyboard to the LabQuest and use that to enter text Special Sensors A few sensors deserve special instructions They are the two internal sensors and the USB based spectrometers Internal Microphone Configure the internal microphone using Sensor Setup found in the Sensors menu Tap the checkbox for Internal Microphone and tap OK At this point the microphone is used just like an external sensor Internal Temperature Sensor Configure the internal temperature sensor using Sensor Setup found in the Sensors menu Tap the checkbox for Internal Temperature and tap OK At this point the temperature sensor is used just like an external sensor Howeve
17. avelength resolution Samples to Average This sets the number of temporal samples taken to calculate an average Increasing this value can improve the signal to noise ratio Wavelength Range The Wavelength Range can be reduced before a calibration to optimize the calibration for that wavelength range The particular spectrometer model determines the default wavelength range Additional LabQuest Tools Across the bottom of the screen are icons for Collect Home Scientific Calculator Keyboard Sounds Battery and the current time Wi File Sensors Tapping the Home icon displays a menu for launching applications Periodic Table Sound Recorder and Stopwatch applications are also available You do not need to quit LabQuest App to launch another A 5 LabOuest App application Sound Recorder ra Table i i T Stopwatch A standard scientific calculator is called by tapping the SO Eerikral Parl Calculator icon The calculator uses algebraic notation You can use this calculator at any time to dismiss it tap the Calculator icon again You can copy a calculator result and paste it into the Notes tab doer A QWERTY keyboard is called and hidden by tapping the keyboard icon Often you will not need to summon the keyboard as it will be displayed whenever alphanumeric input is required The Speaker icon allows you to adjust the volume of sounds produced by LabQuest Tap the Battery icon to see a status report of bat
18. ds 7 Point Protectors Autoscale from 0 does the same but includes the Connect Points origin Manual scaling will respect values entered in the range limits unless incoming data falls outside the range In this case the range will expand to include the E Ee 4 04 25PM data To enter range limits tap in each field and use the keyboard to enter numeric values Dismiss the keyboard by tapping the keyboard icon The Point Protectors option will mark some but not all of the points with a mark such as a circle or diamond This allows easy identification of a trace by the corresponding mark in the graph legend On by default turning off the point protectors may be desirable if only one trace is being viewed The Connect Points option connects data points with straight line segments These lines help the eye follow the data trend but in some cases are not appropriate On by default unchecking Connect Points will leave only the actual points on the graph Columns being graphed on the y axis are checked If multiple runs are present you can quickly choose which runs are plotted by tapping to place checkmarks in the runs you want to see LabQuest can display either one or two graphs The two graphs share a common x axis column and range Tap the diamond next to Graph 1 Y Axis or Graph 2 Y Axis to show or hide the settings for that axis If no column is selected for Graph 2 only one graph will be drawn When you are done setting Graph
19. e latest spectrum will be retained Change Wavelength After observing a full spectrum sample or if you already know the desired wavelength setting return to the Meter screen Tap the meter and choose Change Wavelength to reach a dialog where you can enter the desired wavelength in nm This setting is used for modes other than Full Spectrum so that the LabQuest App reports the current reading at the selected wavelength This reading would then be collected as a function of time or events Example Spectrometer Application Beer s Law To illustrate the sequence of steps commonly used with a spectrometer consider setting up a Beer s law experiment where the ultimate goal is a graph of absorbance versus concentration of a sample of nickel sulfate at the wavelength of peak absorption Making use of the details already given earlier the general steps are as follows 1 Prepare a selection of various concentrations of nickel sulfate including a zero concentration cuvette with only the solvent 2 Calibrate the spectrometer using the zero concentration blank cuvette 3 Place one of the non zero concentration cuvettes in the spectrometer and measure the absorbance as a function of wavelength From this graph select the desired wavelength 4 Set the chosen wavelength for further single wavelength data collection LabQuest App chooses the wavelength of maximum absorbance by default 5 Change the data collection mode on the Meter tab to
20. ed with LabQuest Zero Zero will set the current sensor reading to zero by adding an offset to the current reading Not all sensors allow zeroing Reverse Some sensots read both positive and negative For example the Force sensor reads positive when it is pulled and negative when compressed Choosing the Reverse option will swap the sion of the readings Not all sensors can be reversed Graph Screen LabQuest App automatically switches to the Graph screen when data collection begins 12 LabOuest Reference There are several important shortcuts on the Graph screen After collecting data tap on the graph itself to read values from the examine cursors Read values in the readouts to the right Tap the file cabinet icon to store a run choose between stored runs with the menu to the left of the cabinet icon Graph Menu In the Graph menu itself you can choose what is plotted how the graph is scaled choose point protectors or connecting lines and choose data to ignore by striking through the values You can choose to display two smaller graphs if desired Graph Options For full control over how the data are graphed choose Autoscale Autoscale from Manual i X Axis Column 0 Graph Options Here you can choose the columns used frime pe T for the x and y axes and the top bottom and left right E seent vass limits Selecting Autoscale will cause the graph range to adjust to the data range after data collection en
21. es LabQuest does not work with certain sensors Wireless Dynamics Sensor System WDSS Bluetooth support is planned but is not available at this time Digital Control Unit DCU LabQuest does not support the DCU at this time Go Temp LabQuest does not support data collection from a Go Temp Go Link LabQuest does not support the Go Link Connect analog sensors directly to an analog port on LabQuest Go Motion LabQuest does not support a USB connection to Go Motion Use a Motion Detector cable MDC BTD instead 26 LabOuest Reference The original release of LabOuest App 1 0 released fall 2007 did not support spectrometers radiation monitors blood pressure sensors or rotary motion sensors The internal microphone was not available for data collection LabQuest does not support any kind of wireless networking at this time LabQuest does work with most older Vernier sensors An adapter DIN BTA is required for sensors with a round 5 pin DIN connector Such sensors will not auto ID but can be set up manually using Sensor Setup found in the Sensors menu Curriculum Resources from Vernier Software amp Technology See www vernier com cmat for a complete list of curricular materials available for LabQuest Activity books contain multiple versions of activities prepared for LabQuest computer based data collection using Logger Pro and other data collection platforms Troubleshooting Reset Your LabQuest If
22. experiments or a smaller number for cart based experiments Both settings return to the default on choosing New from the File menu or after turning on the LabQuest Out Quit will exit the LabQuest App Only advanced users need this feature as other applications can be run simultaneously with LabQuest App Print from LabQuest LabQuest will print to many Hewlett Packard printers including LaserJet 1160 LaserJet 2015 Officejet Pro K550 LaserJet 1200 DeskJet 4160 DeskJet 6940 LaserJet 2420 DeskJet 460 DeskJet 930C See www vernier com labqprinters for an up to date list of compatible models Connect a compatible printer to the full size USB port on LabQuest and turn on the printer The Print menu item is located in the File menu From Print you can choose to print just the graph the data table your own notes the lab instructions or the screen as it is currently displayed If LabQuest does not find a compatible printer an error message will be displayed on attempting to print Use an External SD Card or USB Flash Drive with LabQuest LabQuest will recognize additional storage space in a asi gt i connected SD Secure Digital card or a USB flash drive The drive or card may be formatted in FAT16 or fG FAT32 the most common Windows and Mac OS O 2md qmbs formats for reading and writing LabQuest cannot read JU ns D heliumspectrum qmbl NTES or HFS formatted drives prer 7 retaryambi owo2 2008 JM In the Save
23. ged or the LabQuest must be connected to AC power The LabQuest cannot operate on USB power alone When the LabQuest is turned off the USB connection will however slowly charge the battery The long term life of the battery will vary but you can expect about three hundred to four hundred full charge discharge cycles before the battery will need to be replaced In this count a charge from half way to a full charge would count as half of a charge cycle Exposure to temperatures over 35 C will significantly reduce battery life As a battery reaches the end of its useful life the run time will become shorter and shorter Eventually the run time will be too short for your application and you will want to replace the battery Rechargeable batteries are considered a consumable and as such are warranted for one year In typical school use however the batteries will last for three years or more Replacement batteries order code LQ BAT are available from Vernier at low cost Recycling information is available at www tbrc org LabQuest Case and Screen The LabQuest is water and shock resistant Do not submerge in liquids Wipe clean with a damp cloth only do not use any solvents including ammonia or glass cleaners Stylus Tether LabQuest includes two styli and a tether If desired you can attach the tether to a stylus and the LabQuest Additional styli are available from Vernier The LabQuest Emulator The LabQuest Emulator LQ
24. he same File menu used to open existing files save data into a file print and perform other tasks TE File SETE New ime Based Rate 50 0 samples s Length 1005 Open Save Delete Export File Menu The File menu is similar to the File menu on a computer Here you can save and open files print change settings and quit the application LabQuest App can read and write files to LabQuest memory a sort of virtual hard disk Files contain experimental setup data analysis and notes Files allow you to retain a collection of past work either for later referral View Lab Instructions Print Settings A A d 03 39PM 6 LabOuest Reference on the LabOuest or for download to a computer If you only want to download the current LabQuest session to computer it is not necessary to save a file Connect LabQuest to a computer and launch Logger Pro or Logger Lite New New will reset data collection mode and calibrations to defaults and will clear any existing data You will be prompted to save any unsaved data Open Open displays a list of the files available on your LabQuest Initially this list is empty Choose a file by tapping it and then tap OK Files may be located in the JQ 03 14 2008 LabQuest flash memory an SD card or a USB drive LD 2md qambi 03 14 2008 pD helium qmbl Monday Lj heliumspectrum qmbl Monday Save 7 nanrun gmbi 04 02 2008
25. i File Sensors wi File Sensors ime Based Rate 50 0 samples s Length 1005 CH 1 Force f Be 03 27PM wi a File Graph Analyze NN EHKI ON EEK 03 28PM The LabQuest is both hardware and software The software called LabQuest App is the data collection heart of your LabOuest When you wake a LabOuest using the silver power button the LabOuest App is started What follows is a brief introduction to LabOuest App See the section titled Additional LabQuest App Features for more information Take some data using the steps in the previous section and then try some LabQuest analysis features Use the Stylus to Examine Your Data Tap on the graph itself near some feature of interest on your graph The Examine cursor jumps to the nearest data point of the x value you tapped Cursor lines highlight the x and y axis values and the right side readouts display the associated numerical values of the ON 4 03 29PM LabOuest Reference point You can make fine adjustments to the cursor location by using the left and right cursot keys below the screen The Analyze menu enables additional ways to inspect your data Tap Analyze and then tap Tangent Now tap neat an interesting place on your graph a tangent line is drawn in addition to the examine cursors On the right side of the graph the numerical value of the slope is shown w U ju 2 To turn off the Tangent functi
26. le in a Boyle s law experiment one wants to know the pressure as a function of the volume of gas TE In this case the Events with Entry mode is used When Data Collection setting up this mode you can enter a name and units s alw elr t y ulilolp 7 8 9 for the entry column such as Volume Scroll down to ABC asdfghjkii 456 x see the option Average over 10 seconds This setting SRR A SSeS eee tt V jm jO0j will cause LabQuest to take a ten second average for N EI each reading which is particularly useful for water quality studies Once data collection is started with the collect button a Keep button appears Tap the Keep button to record the sensor value and then LabQuest a will prompt for the Entry value Sensor values are plotted versus the Entry values No time information is recorded in Events with Entry mode z Volume Mode Selected Events j D 04 10PM Selected Events is like Events with Entry except that entries of 1 2 3 are entered automatically for you No time information is recorded in Selected Events mode Mode Photogate Timing Photogates require a different set of timing options When a photogate is detected LabQuest switches to Photogate Timing mode Within Photogate Timing there are additional modes End data collection settings in Photogate Timing have two choices either the collection runs until the user taps stop or the collection can be set to end after a
27. nce or Intensity as a function of wavelength This graph allows you to inspect the entire spectrum for features often for further analysis by choosing to collect data at only one wavelength Spectrometer Calibration Calibration requires a cuvette filled with only the solvent used for your sample 1 Tap the meter on the Meter Screen and choose fiiia Calibrate ajad 9 2 Place the clear cuvette in the spectrometer Change Wavelength 3 Wait for the lamp warmup period to elapse ated acd Skipping the warmup period may result in poor wi File Sensors calibration 4 amp 0 11 39am 4 Tap Finish Calibration After a moment the message Calibration Completed will be displayed Ea eos 5 Tap OK to accept the calibration or Cancel to discard Place a blank cuvette in the device This calibration will persist through the session in LabQuest App Once the spectrometer is calibrated you can proceed to make absorbance or transmittance measurements in any of the appropriate data collection Disable Calibration Use Raw Values Calibrate Spectrometer OK A 11 39AM 18 LabOuest Reference modes View Full Spectrum Once a spectrometer is calibrated place a sample in the cuvette holder Tap Collect Absorbance Transmission or Intensity will be displayed as a function of wavelength The spectrum will be updated as guickly as possible with the previous spectrum replaced by the current one When you tap Stop th
28. nnected to or sponsored by us 28
29. o your computer using the included USB cable The mini end connects to LabQuest and the full size end connects to an available USB port on your computer The LabQuest can be used with a computer in two ways Data can be collected directly to Logger Pro or Logger Lite or you can retrieve previously collected data from the LabQuest to either program Collect Data with LabQuest Directly to Logger Lite or Logger Pro 1 Connect a sensor to LabOuest Something simple like force or temperature is a good choice 2 Launch Logger Pro or Logger Lite The computer will detect the LabQuest and the attached sensor and display a graph ready for data collection 3 Click the Collect button in Logger Pro or Logger Lite to collect data Automatically Transfer Data from LabQuest to the Computer If you collect data in LabQuest App and you then connect the LabQuest to a computer Logger Lite or Logger Pro will automatically detect the presence of the remote data and offer to retrieve it The sensor used must be auto ID capable LabOuest Reference Collect some data on LabQuest so you can try this Then connect the LabQuest to your computer and launch Logger Lite or Logger Pro The computer application will detect the LabOuest and its data and display a dialog indicating that remote data are available Follow instructions in that and subsequent dialogs to download data to the computer LabQuest Browser Logger Pro and Logger Lite allow y
30. of a connected sensor e The number of samples could lead to performance issues Performance of LabQuest App is reduced when collecting over 10000 samples Red Unsupported level e The Rate is faster than a connected device and or sensor configuration can possibly handle e The Rate is slower than a connected device and or sensor configuration can handle e The Number of samples exceeds the storage available LabOuest Reference e The Number of samples exceeds 2000 at rates faster than 80 kHz The number of samples always includes the pre trigger samples Mode Triggering Triggering is only available in Time Based mode When enabled LabOuest will wait for a trigger condition to be met before beginning data collection For example you might wait to collect data until a force sensor is rising over 2 N The sensor name the level and the direction of change increasing or decreasing can all be set here A limited number of points before the trigger condition is met can also be saved with your data Mode Advanced Settings The Advanced field allows you to enable Oversampling which samples the sensor at a rate higher than the number of samples per second you set and then averages those readings Also you can enable Repeat mode which starts a new run as soon as the current run has ended Mode Events with Entry Sometimes experiments do not depend on time but r Ega depend on the setting of some other guantity Fot RR ER examp
31. on choose it again from Time 5 the Analyze menu D 03 34PM Select a Region for Statistics Some analysis functions allow you to select a range of data To select a range use the stylus to drag across the region of interest Now you can perform tasks like integrals statistics or curve fits Try this Drag across a feature on your graph and then select Statistics from the Analyze menu choosing the particular sensor or column Force N mean 7 7732 std dev 0 19955 samples 164 The graph now shows the selected region and descriptive statistics are displayed to the right of the graph You can remove the statistics display by choosing Statistics again from the Analyze menu DN 03 37PM Select a Region for Curve Fit Curve fits can also start with a selection fie M Tangent Otherwise the entire aha Statistics eraph is used To perform a Curve fit Interpolate drag across a region Model of the eraph if you K Draw Prediction Motion Match want to make a 5 i a Time s i E i Volume mL A 014 316 mL selection Then A i 12 52PM GO EEK 11 35AM choose Curve Fit from the Analyze menu In the new screen you will see your graph as well as a menu of fit equations Display the equations by tapping the down arrow to the right of the list Tap Linear to perform a linear fit to your data The fit coefficients are shown To place the fit on your main graph tap OK The fit and its statistic
32. or notices These licenses give you the right to redistribute and or modify the software The software is distributed in the hope that it will be useful but WITHOUT ANY WARRANTY without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE See the GNU General Public License for more details Complete source code for the open source software is available on request from Vernier Software amp Technology Contact us at info vernier com or by writing to Source Code Request Vernier Software amp Technology 13979 SW Millikan Way Beaverton OR 97005 USA Source code will be made available for download or you may request a CD ROM of the code A shipping and handling fee will be charged for a CD ROM The exact terms of GPL LGPL and some other licenses are provided to you with the source code distribution You may also read the license at http www gnu org licenses Vernier Software amp Technology 13979 S W Millikan Way Beaverton OR 97005 2886 Toll Free 888 837 6437 503 277 2299 FAX 503 277 2440 info vernier com www vernier com Measure Analyze Learn Revised April 29 2008 Logger Pro Logger Lite Vernier LabQuest Vernier LabPro Go Link Vernier EasyLink and other marks shown are our trademarks or registered trademarks in the United States All other marks not owned by us that appear herein are the property of their respective owners who may or may not be affiliated with co
33. orage slot a full size USB port for printers USB drives and other peripherals an SD card slot for memory expansion and a mini USB port for connecting LabQuest to a computer On the underside are the battery compartment and a stylus tether attachment point Turn off your LabQuest by pressing the power button for about a second For longest use charge your LabQuest overnight Items Included with LabQuest LabQuest unit Printed LabQuest Quick Start Guide A CD or CDs containing e computer software e LabQuest Reference Guide e flash introduction USB cable Power adapter Stylus 2 Stylus tether kit LabOuest Reference Collect Data with LabQuest Here s how to quickly collect some data with your new LabQuest 1 Wake up your LabQuest by pressing the silver power button on the upper left corner If your LabQuest does not wake your battery may be discharged Connect the LabQuest to its power adapter and continue 2 Connect an analog sensor auto ID capable to one of the ports on the top edge of LabQuest Something simple like a temperature light or force sensor is best LabQuest will set itself for data collection with that sensor Note the live readout on the Meter screen 3 Press the Collect button just below the LabQuest screen Data collection will begin and a graph will show your data being plotted in real time Charge your LabQuest overnight for a full battery charge LabQuest App Introduction J
34. ou may choose to subsequently save the data as a Logger Pro ot Logger Lite file Tip If sensors are still connected when a LabQuest file is opened in Logger Pro or Logger Lite the sensors will be ignored To enable the sensors choose New from the File menu in the computer application Another option is to Import data from the LabQuest Import differs from Open in that only the data in the LabQuest file are added to the current computer session This allows you to compile data from multiple LabQuest sessions into a single computer session for graphing and comparison Tip Compile class results from multiple LabQuest files or multiple LabQuests by repeatedly importing data into a single Logger Pro or Logger Lite file Manually Move Data from Computer to LabQuest Data and or sensor configurations can be saved to the LabQuest from your computer Open a computer file or set up the computer for the data collection details you desire LabOuest Reference Choose Save As from the LabQuest Browser found in the File menu and enter a desctiptive file name Any data and the sensor configuration will be stored on the LabOuest as a LabOuest file Any features in the computer file not existing on LabOuest such as embedded images video analysis graph annotations or most calculated columns will be ignored on LabQuest Delete Data on LabQuest The LabQuest Browser includes a Delete function Choose Delete from the LabQuest Browse
35. ou to copy files back and forth between the LabQuest and your computer as well as delete files on the LabQuest unit Access these functions from the LabQuest Browser found on the File menu in Logger Lite or Logger Pro Manually Transfer Data from LabQuest to Computer In addition to the automatic detection of recent data in LabQuest by Logger Pro or Logger Lite described in the preceding sections you can also download any saved data from LabQuest to the computer After an experiment is complete on LabQuest choose Save from the LabQuest File menu Give the experiment an identifying name You may save multiple LabQuest files on LabQuest this way Tip When taking data in the field store experiments as files on the LabQuest To do this choose Save from the File menu and give the experiment a descriptive name Choose either the LabQuest or optionally a USB drive or SD card as the location This way you can save as many experiments as you like Later you can either use LabQuest Browser in Logger Pro ot Logger Lite to open the files or connect the USB drive or SD card to your computer and open the files directly in Logger Pro or Logger Lite On the computer choose Open from the LabQuest Browser which is found in the File menu Select the desired file from the LabQuest and open it Your LabQuest file will be opened on the computer including any data notes and data collection configuration Only one file can be opened at a time Y
36. r and select the file you want to remove from LabQuest Tip Use the LabQuest Browser to mass delete files from LabQuest Click to select multiple files and click Delete This is the only way to delete more than one file at a time Remote Setup of LabQuest from Logger Pro Logger Pro allows you to configure LabQuest for data collection from the computer Set up Logger Pro as desired for your sensors data collection rate and duration Choose Remote Setup LabQuest from the Experiment menu Disconnect the LabQuest when prompted Collect data on LabQuest using its screen and keys Notes This feature is not available in Logger Lite and is equivalent to setting up LabQuest using LabQuest App controls Additional LabQuest App Features This section reviews the features and functions of the LabQuest App in detail First the overall LabQuest screen and then the four tabs and their special contents are described Ji File Sensors The LabQuest App Screen There are four tabs across the top of the LabQuest screen the Meter Graph Table and Notes tabs Tap a tab to display its screen Across the bottom of the screen ate icons for Collect Home Calculator Keyboard Sounds Battery and the current time The Battery icon is not shown on the LabQuest Emulator used to make these screen images The bottom row d Ee ES 03 27PM icons are always visible but the tabs are only present when LabQuest App is active All four tabs share t
37. r since the sensor is internal to the LabQuest it cannot respond rapidly to changing temperatures It is designed only to measure ambient temperatures and the associated slow change The data rate is limited to no faster than one point every 20 seconds Spectrometers LabQuest App supports the following USB Spectrometers e Vernier SpectroVis SVIS 17 LabOuest Reference e Vernier Spectrometer V SPEC e Ocean Optics Red Tide SPRT VIS SPRT UV VIS ESRT VIS e Ocean Optics USB2000 e Ocean Optics USB4000 SP VIS SP UV VIS LabQuest may require the user of a powered USB hub with some SP VIS units All spectrometers are auto ID connect a device and select New from the File menu of LabQuest App if the spectrometer is not immediately found Spectrometers have their own specialized data vos 378 5 Wavelength nm 948 7 collection modes and units They can measure A EDE Absorbance Transmittance and Intensity Absorbance and Transmittance units require calibration with a clear cuvette before you can collect data Intensity report the raw light intensity detected as a function of wavelength and so does not require calibration Once the data collection units are chosen a data collection mode can be chosen Modes appropriate for spectrometers are Time Based Events with Entry Selected Events and the default Full Spectrum In Full Spectrum mode the LabQuest App will display the chosen units Absorbance Transmitta
38. reference information on the elements Tap an element to see details close the detail window using the upper right close button Stopwatch The Stopwatch Application is a simple timer Tap the j E IE EI start button to begin timing tap it again to stop Subseguent taps will continue to start and stop the timer Tap the middle reset button to return the timer to zero The copy button will place the current time on the clipboard for pasting into the Notes screen of LabQuest App ot into the calculatot f File Sensors HEIKI Control Panel E Rate The Control Panel gives access to settings on i Offline Force Length LabQuest To dismiss a control panel tap the close button in the upper right corner of the screen get AAEN M alibata Screan 5 Sound as e koma klaad He Periodic Table Calibrate Screen 9 Reboot ZS Stopwatch Sound lt Use this if the screen does not respond to taps in the i Tine amp Date SETE k o System Information id nd dy 04 39PM locations you expect Dfi 21 LabOuest Reference Tip If the screen calibration has been changed so that you cannot tap on menus use the hardware keys to display the home menu cursor keys to highlight Control Panel press right arrow to display the submenu then cursor keys to highlight Calibrate Screen Select that item by pressing OK This will start the calibration routine without relying on the touch screen Light amp Power Light amp
39. rror is a measure of how well the fit matches the data The smaller the RMSE the close the data are to the fitted line The RMSE has the same units as the y axis data Once you have a fit on the main graph you can choose Interpolate from the Analyze menu Tap on the graph to read values from the fitted curve as opposed to reading from the data as a function of the x axis value Turn off Interpolate by selecting it again Model Model allows you to manually fit a chosen function to your data Choose Model and then choose a function The parameters A B and C are adjustable Change them by direct entry or by using the up and down arrows to the right of the values Tap OK to place the model on your main graph A B i 04 27PM Tip If no function appears when modeling your parameters are defining a curve that is outside of the plot window Draw Prediction Ae ANTO Analyze f Tangent Integral Statistics The Draw Prediction choice gives you a free hand sketch tool superimposed over a graph This can be used for a variety of purposes but most often is used to sketch a prediction of how a graph will appear once A data are subseguently collected Choose Draw saa a Model Prediction and then Graph 1 or 2 as desired You will oes eee then see a sketching screen Drag the stylus across the ag New Position Match screen for smooth curves ot tap the screen to connect 1 E se the taps with straight line segments The Reset but
40. s as well as legacy non auto ID sensors For each channel in use select a sensor name and then select new units as desired Most sensors are auto ID and so you will not need to set them up this way CH 1 bus Range Force 30 N vin aje CH 2 No Sensor Data Collection CH 3 No senzor The Data Collection menu allows you to set data collection mode and parameters Choose between time foc 77 based events with entry and other data collection INT Internal Temperature modes For time based experiments set the experiment ff NT Internal Microphone length and data rate You can get to the same settings Sensor Setup by tapping the Mode field on the Meter tab LabQuest chooses appropriate rate and experiment length based Time Based on the sensors connected but you can override the Time Based defaults in this dialog Events with Entry Selected Events a A Photogate Timing Mode Time Based Data Collection ae Time based data collection is the default mode where ccm oli si sr A A b Advanced sensor readings are recorded at regular time intervals The rate and duration of the experiment can be set The areas total number of samples to be collected is displayed A A KETT Under some circumstances the Rate and Length fields will highlight in yellow or red Yellow Warning level e The Rate is faster than the recommended fastest rate of a connected sensor e The Rate is slower than the recommended slowest rate
41. s are shown on the main screen Once you have performed a curve fit you can use the Interpolate function to read values off of the fitted function Choose Interpolate and tap on the graph The examine lines now locate a position on the fitted function and coordinates along the fitted line are shown to LabOuest Reference the right of the graph You can tell that LabOuest is in the Interpolation mode by the sguare cursor shown at the Examine point To remove the fit choose Curve Fit again from the Analyze menu Multiple Runs You can collect several runs for comparison Tap the file cabinet icon E the run will be stored and the graph cleared Collect another run by pressing the Collect button Your new run is displayed on the graph To see yout first run tap the button reading Run 2 and select either Run 1 or All Runs In this way you can gather multiple runs for comparison and view just the ones you want SY 03 38PM Use LabQuest with a Computer Software Requirements Your LabQuest comes with computer software Use either Logger Lite 1 4 or newer or Logger Pro 3 6 or newer with LabQuest If you already own Logger Pro 3 updates to Logger Pro are available for free download at www vernier com tech lpupdates html A compatible version of computer software is included with your LabOuest Install the software from the included CD if you do not have compatible software already installed Connect the LabOuest t
42. tery power 20 LabOuest Reference Hint The battery icon updates every few minutes As a result it might appear that a LabQuest left charging while off has not successfully charged You can force the display to update by connecting and disconnecting the AC power supply while LabQuest App is runnine or just by waiting a few minutes Set the time and date by tapping the time display at lower right Usually this is not necessary as LabQuest time is synced to the computer s clock on connecting to Logger Lite or Logger Pro Accessory Applications Several accessory applications can be launched from the Home menu It is not necessary to leave the LabQuest App to use these accessories to return to LabQuest App either close the accessory using the close button in the upper right corner of the screen or switch to the LabQuest App using the window button in the upper left corner Sound Recorder The sound recorder is used to capture short audio clips typically for voice notes To record a clip tap the round green record button To stop tap the square red stop button Play the clip back using the green play button The disk button allows you to save the clip which can later be opened using the open file folder icon The blank page icon clears out any current audio clip Tip Use Sound Recorder to quickly make audio notes on experiments v PERIODIC TABLE OF ELEMENTS x Periodic Table The Periodic Table contains standard
43. ton will remove your sketch if you need to start over Tap OK to place your sketch on the main graph To remove a prediction choose Draw Prediction again from the Analyze menu Posi m 5 Curve Fit ra E 2 u a 15 LabOuest Reference Motion Match The Motion Match menu item 1s only available if a Motion Detector is connected You have a choice of a new Position or Velocity match In each case LabQuest generates a random target graph for matching exercises Only the selected graph Position or Velocity is shown in match mode You may collect data over the target graph as many times as you like To see a new target graph choose New Position Match or New Velocity Lule Match again Remove Match removes the target graph _ E 2 BP a amp B i 05 19PM Table Screen The Table screen shows a data table view of your experiment There are several shortcuts on this screen e Tap the Run Name field initially called Run 1 Run 2 and so forth to edit the name of the run e Tap a column header Time Force etc to change the column name display precision or units Table Menu The Table menu allows you to create modify or delete columns of data Anything in columns can be graphed New Manual Column eee New Manual Column creates an em column into New Calculated Column pty A Fort Data Column Options which you can enter or generate values directly eee ta Delete Run New Calculated
44. your LabQuest stops responding reset it There are three ways to reset the LabQuest Try these in the order listed below 1 Soft Reset For a low impact restart tap the Home icon on the bottom panel select Control Panel and then select Reboot 2 Medium Reset Reboot from the Control Panel as in the Soft Reset above When the screen goes black press the Reset button on the back of the LabQuest right below where the stylus slides into place Use the stylus to press and hold the button for a several seconds 3 Hard Reset The last thing to try is the reset button on the back of the LabQuest right below where the stylus slides into place Use the stylus to press and hold the button for a couple of seconds Note Do not use a Hard Reset unless both the screen and hardkeys are not responding Get Additional Help Additional help on using your LabQuest is available at www vernier com labquest You may also contact Vernier directly at 888 837 6437 in the United States or using info vernier com If your LabQuest was purchased outside the United States please contact your distributor for assistance 2 LabOuest Reference License Information This product contains certain open source software originated by third parties that is subject to the GNU General Public License as published by the Free Software Foundation GNU Library Lesser General Public License LGPL and different and or additional copyright licenses disclaimers
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