Getting Started With LabTutor

Getting Started with LabTutor®This document was, as far as possible, accurate at the time of release. However, changes may have been made to the software and hardware it describes since then. ADInstruments Pty Ltd. reserves the right to alter specifications as required. Latebreaking information may be supplied separately. Trademarks of ADInstruments LabTutor®, LabAuthor®, LabChart®, PowerLab® and MacLab® are registered trademarks of ADInstruments Pty Ltd. The names of specific recording units, such as PowerLab 15T, are trademarks of ADInstruments Pty Ltd. Chart and Scope (application programs) are trademarks of ADInstruments Pty Ltd. Other Trademarks Apple, Mac and Macintosh are registered trademarks of Apple Computer, Inc. Windows, Windows XP and Windows Vista are either registered trademarks or trademarks of Microsoft Corporation. All other trademarks are the property of their respective owners. Product: MLS040 LabTutor Version: 3.0 Document Number: U-MLS040/W-UG-030A Part Number: 5393 Copyright © May 2009 ADInstruments Pty Ltd. Unit 13, 22 Lexington Drive, Bella Vista, NSW 2153, Australia All rights reserved. No part of this document may be reproduced by any means without the prior written permission of ADInstruments Pty Ltd. Web: www.adinstruments.com Technical Support: [email protected] Documentation: [email protected] ADInstruments Pty Ltd. ISO 9001:2000 Certified Quality Management System Reg. No. 1053 ii Getting Started with LabTutor Contents Safety Notes 1 Introduction About this Guide . . . . . . . . . . . . . System Requirements . . . . . . . . . . Installed Components . . . . . . . . . . Functional Description . . . . . . . . . Experiments. . . . . . . . . . . . . . . . PowerLab Check . . . . . . . . . . . . LabTutor Resources . . . . . . . . . . . Software and Experiment Updates Getting Started with LabTutor . . . LabTutor Instructor’s Material . . LabAuthor Software . . . . . . . . . Hardware Owner’s Guides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 13 14 14 14 15 16 17 17 17 17 18 18 18 2 Software Installation Installing the Software . . . . . . . . . . Microsoft .NET Framework . . . . LabTutor Software . . . . . . . . . . LabTutor Experiments . . . . . . . Check for Updates . . . . . . . . . Configuration . . . . . . . . . . . . Further Considerations . . . . . . . . . Remote Experiment Installation . . Remote Experiment Configuration Security . . . . . . . . . . . . . . . . Administrator Deployment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 . . . . . . . . . . . 20 21 21 21 23 24 25 25 25 25 25 3 Hardware Basics PowerLab Description The Front Panel . The Back Panel . The Bio Amp Cable . . The PowerLab Self-test Contents 27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 28 32 34 35 iii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Starting LabAuthor . . . . . . . . . . . . . . . . 48 . . . . . . . . . 37 . . . . . . . . . . 42 . . . . . . . . . . . . . . . . . . . . . . . . . . Front-ends . . . . . . . . . . . . . . . . . . . 47 . . . . . . . . . . Pods . . . . . . . . . . . . . . . . . . . . . . Transducers . . . . . . . . Exiting the LabTutor Kernel . . . . . Starting an Experiment . . . . . . . . . . . . . . . . . . . . . 40 . . . . . . . . . Configuring LabTutor Experiments Experiment Details . . . . . . . . . . . . . . The Experiment Files Cache . . . Individual/Group Logins . . . 40 . . Starting the PowerLab . . . Managing Cached Experiment Files. . . . 37 4 Using LabTutor User Login Scenarios . . . . . . . . . . . . Clearing the LabTutor Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 . . . . . . . . . . . . . . . . . . 48 . . . . . . . . . . . . . . Exporting Experiment Data . . . . . . . . . . . . . Customizing LabTutor Experiments Starting LabTutor . . . . . . . . . . . . . . . . Shared Logins . . . . . . 48 . . . . . . . . . . . . . . . . . . . . . . . . . . . Report Options . . . . . . . 36 . . . . Starting the LabTutor Kernel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Example Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 . . . . . . . . . . . . . 43 . . . . . . . . . . 40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Connecting the Hardware PowerLab . . . . . . . . 37 . . . . . . . . . . . . . . . 36 . . . . . . . . . . . . . . . . . . . . . . . 39 . 40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 . . . . . . . . . . . . . . . . . . . . . . . . 42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 . . . . . . . . . . . . . . . . . . . . . . . 48 A LabTutor Panels B Troubleshooting Index 49 55 63 iv Getting Started with LabTutor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 . . . . . . . . . . . . . . . . . . . . . . . 41 . . . . . . . . . . . . . . . . . . . . . . . curing or alleviation of disease. That is. Where a product meets IEC 60601-1 it is under the principle that: • • it is a more rigorous standard than other standards that could be chosen.Safety Notes Statement of Intended Use All products manufactured by ADInstruments are intended for use in teaching and research applications and environments only. ADInstruments products are NOT intended to be used as medical devices or in medical environments. injury or handicap. Furthermore no product is intended for the prevention. The choice to meet IEC 60601-1 is in no way to be interpreted to mean that a product: • • • is a medical device. no product supplied by ADInstruments is intended to be used to diagnose. treat or monitor a subject. Safety Notes 5 . or is safe to be used as a medical device. and it provides a high safety level for subjects and operators. may be interpreted as a medical device. Several points must be observed for safe operation of the Bio Amp: • All Bio Amp front-ends (except for the ML138 Octal Bio Amp) and PowerLab units with a built-in Bio Amp are supplied with a 3-lead or 5lead Bio Amp subject cable and lead wire system. These symbols appear next to those inputs and output connectors that can be directly connected to human subjects. The ML138 Octal Bio 6 Getting Started with LabTutor . Bio Amp Safety Instructions The Bio Amp inputs displaying any of the safety symbols are electrically isolated from the mains supply in order to prevent current flow that may otherwise result in injury to the subject. • CF (cardiac protected) symbol. This means that the input connectors are suitable for connection to humans provided there is no direct electrical connection to the heart. and carry one or more of the safety symbols below. • Warning symbol. ! BF symbol: Bodyprotected equipment CF symbol: Cardiacprotected equipment Warning symbol: ‘see documentation’ The three symbols are: • BF (body protected) symbol. The exclamation mark inside a triangle means that the supplied documentation must be consulted for operating. cautionary or safety information before using the device. Further information is available on request.Safety Symbols Devices manufactured by ADInstruments that are designed for direct connection to humans are tested to IEC 601-1:1998 (including amendments 1 and 2) and 60601-1-2. This means that the input connectors are suitable for connection to human subjects even when there is direct electrical connection to the heart. Do not use faulty cables. a cardiac condition. Do not hold one electrode in each hand. Always commence stimulation at the lowest current setting and slowly increase the current. or those that have exhibited intermittent faults.• • Amp is supplied with unshielded lead wires (1. Stimulation must not be applied across the chest or head. This may result in a safety hazard. The Isolated Stimulator output must not be used with individual (physically separate) stimulating electrodes. • • • • • Safety Notes 7 . Do not attempt to measure or record the Isolated Stimulator waveform while connected to a subject using a PowerLab input or any other piece of equipment that does not carry the appropriate safety symbol (see Safety Symbols above). Bio Amps are only safe for human connection if used with the supplied subject cable and lead wires. or a history of epileptic episodes must not be subject to electrical stimulation. Never use damaged Bio Amp cables or leads. The Isolated Stimulator output of a front-end signal conditioner or PowerLab with a built-in isolated stimulator is electrically isolated. Injury can still occur from careless use of these devices. Using the Bio Amp to record signals during defibrillator discharges may damage the input stages of the amplifiers. However. Using electrodes without electrode cream can result in burns to the skin or discomfort for the subject.8 m). Damaged cables and leads must always be replaced before any connection to humans is made. Subjects with implantable or external cardiac pacemakers. Stop stimulation if the subject experiences pain or discomfort. Isolated Stimulator Safety Instructions ? WARNING The Stimulator HC is NOT for human connection. they can produce pulses of up to 100 V at up to 20 mA. Always use a suitable electrode cream or gel and proper skin preparation to ensure a low-impedance electrode contact. Several points must be observed for safe operation of the Isolated Stimulator: • • • • • The Isolated Stimulator output must only be used with the supplied bar stimulus electrode. All Bio Amp front-ends and PowerLab units with a built-in Bio Amp are not defibrillator-protected. Collateral standard: Safety requirements for medical systems. Failure to do so may compromise the inherent safety measures designed into PowerLab equipment. Therefore. stimulation must be stopped. only equipment complying with IEC606011 should be present. At the first sign of a problem. For a replacement transformer plug pack please contact your nearest ADInstruments representative. Within this 1. A yellow flash indicates an ‘out-of-compliance’ (OOC) condition that may be due to the electrode contact drying up.Always check the status indicator on the front panel. While it is not possible to cover all arrangements of equipment in a system. Accompanying documents for each piece of equipment in the system should be thoroughly examined prior to connection of the system. Always ensure that there is good electrode contact at all times. It will always flash green each time the stimulator delivers a current pulse. • General Safety Instructions To achieve the optimal degree of subject and operator safety. • Always be alert for any adverse physiological effects in the subject. The following guidelines are based on principles outlined in the international safety standard IEC60601-1-1: General requirements for safety . The plug pack complies with medical safety requirements. consideration should be given to the following guidelines when setting up a PowerLab system either as stand-alone equipment or when using PowerLab equipment in conjunction with other equipment. An electrode impedance meter can be used for this task. Connecting a system in this way obviates the provision of additional safety measures and the measurement of leakage currents. under no circumstances should any other transformer be used with the Stimulus Isolator.8 m radius from the subject (so that the subject cannot touch it while connected to the system). The ML180 Stimulus Isolator is supplied with a special transformer plug pack.8 m radius. Electrodes that are left on a subject for some time need to be checked for dry contacts. some general guidelines for safe use of the equipment are presented below: 8 Getting Started with LabTutor . This personal computer should be certified as complying with IEC60950 and should be located outside a 1. either from the software or by flicking down the safety switch on the front panel of the built-in Isolated Stimulator or the ML180 Stimulus Isolator. PowerLab systems (and many other devices) require the connection of a personal computer for operation. Reference to this standard is required when setting up a system for human connection. Individual connection of each piece of equipment to fixed mains socket-outlets is the preferred means of connection. If spillage occurs. Do not touch the subject to which the PowerLab (or its peripherals) is connected at the same time as making contact with parts of the PowerLab (or its peripherals) that are not intended for contact to the subject. If multiple portable socket outlets are used. The entry of liquids into equipment may also compromise the isolation barrier. The isolation barrier may be compromised if manufacturer’s cleaning instructions are not followed. Avoid using multiple portable socket-outlets (such as power boards) where possible as they provide an inherently less safe environment with respect to electrical hazards. Only CF-rated APPLIED PARTS must be used for direct cardiac connection. Additional multiple portable socket outlets or extension cords shall not be connected to the system. but may also be supplied as a dedicated safety earth conductor. APPLIED PARTS may be recognized by the BF or CF symbols which appear in the Safety Symbols section of these Safety Notes. This is generally provided from the power outlet through a power cord. Many electrical systems (particularly those in metal enclosures) depend upon the presence of a protective earth for electrical safety. Never connect parts which are marked as an APPLIED PART to those which are not marked as APPLIED PARTS. Only connect those parts of equipment that are marked as an APPLIED PART to the subject. The integrity of the protective earth connection between each piece of equipment and the protective earth should be verified regularly by qualified personnel. the manufacturer of the affected equipment should be contacted before using the equipment. The ambient environment (such as the temperature and relative humidity) of the system should be kept within the manufacturer’s specified range or the isolation barrier may be compromised. Cleaning and sterilization of equipment should be performed in accordance with manufacturer’s instructions. Power cords should never be modified so as to remove the earth connection. they are subject to the following constraints: • • • They shall not be placed on the floor.• • • • • • • • • • Any electrical equipment which is located within the SUBJECT AREA should be approved to IEC60601-1. They shall only be used for supplying power to equipment which is intended to form part of the system. Safety Notes 9 . subject leakage and auxiliary currents and power cable integrity can all be performed on the PowerLab system without having to remove the covers. Internal diagnostic software performs system checks during power up and will report errors if a significant problem is found. Your PowerLab system can be periodically checked for basic safety by using an appropriate safety testing device. Do not attempt to service the device yourself. If the PowerLab system is found not to comply with such testing you should contact your PowerLab representative to arrange for the equipment to be checked and serviced. and must be kept away from laboratory chemicals. insulation resistance. Environment Electronic components are susceptible to corrosive substances and atmospheres.Cleaning and Sterilization ADInstruments products may be wiped down with a lint free cloth moistened with industrial methylated spirit. Refer to the manufacturer’s guidelines or the Data Card supplied with transducers and accessories for specific cleaning and sterilizing instructions. Tests such as earth leakage. earth bond. Follow the instructions for the testing device if performing such tests. Storage Conditions • • Temperature 0–40 °C Non-condensing humidity in the range 0–95%. 10 Getting Started with LabTutor . There is no need to open the instrument for inspection or maintenance. Preventative Inspection and Maintenance PowerLab systems and ADInstruments front-ends are all maintenance-free and do not require periodic calibration or adjustment to ensure safe operation. Operating Conditions • • Temperature 5–35 °C Non-condensing humidity 0–90%. and doing so within the warranty period will void the warranty. Unwanted equipment bearing the Waste Electrical and Electronic Equipment (WEEE) Directive symbol requires separate waste collection. either forward to a recycling center or contact your nearest ADInstruments representative for methods of disposal at the end of its working life. For a product labelled with this symbol.Disposal • • Forward to recycling center or return to manufacturer. WEEE Directive symbol Safety Notes 11 . 12 Getting Started with LabTutor . Chapter 1 Introduction 13 . The installation of the software is described in Chapter 2. The use of the LabTutor software and the PowerLab are described in Chapter 4. This chapter gives an overview of the LabTutor software and experiments. The PowerLab hardware is described in Chapter 3.1 Introduction The LabTutor® software and PowerLab data acquisition hardware are designed specifically for laboratory teaching and include specially prepared experiment files. 0 Service Pack 2 or 3.labdat files.NET Framework 2. or better A USB interface for communication with the PowerLab.0.About this Guide This guide describes LabTutor v3. in Chapter 4. It provides: • • • • An overview of the LabTutor system. Installed Components The following LabTutor components are installed on each computer: • • The LabTutor Kernel.0.5 Service Pack 1 Microsoft Internet Explorer 7. 14 Getting Started with LabTutor . including HTML and . or later. System Requirements System requirements for satisfactory performance of LabTutor and LabAuthor are: • • • • • • Microsoft Windows Vista Service Pack 1 (32-bit or 64-bit versions) or XP Professional Service Pack 2. 4/26 and 26T. as the default browser 1 GB RAM A computer and monitor that support a 1024 x 768 color display. in this chapter Instructions for installing and setting up LabTutor. the PowerLab 15T. 2/26. in Chapter 2 A description of. or later Microsoft . in Chapter 3 Instructions for using LabTutor. and connection information for. The interactions between these components are described below. and associated files LabTutor experiments. labdat data file associated with the page.NET Remoting Child Panel Child Panel . and recording from. and performs the following functions: • • • provides the data to display in the panels of experiment pages controls all setup of. if it’s not already running.NET remoting over TCP/IP. the page panels (ActiveX components) referenced in the HTML are displayed according to associated configuration specifications (Figure 1–1). and settings changes. to the . Communication between the LabTutor Kernel and experiment page panels uses . Figure 1–1 Schematic overview of LabTutor LabTutor Kernel Data documents Internet Explorer Data Panel . The LabTutor Kernel loads the . Opening the page also causes the LabTutor Kernel to start.labdat files PowerLab Chapter 1 Introduction 15 . the PowerLab saves newly recorded data.labdat file.Functional Description The following description is a brief overview of how the LabTutor components operate together. When a LabTutor experiment page is opened by the Internet Explorer browser. their positioning in the page. Panels are described in more detail in Appendix A. and a Report page that summarizes the results and can be submitted to tutors electronically. The data to be displayed in the panels. and detailed panel options contained in embedded XML fragments. LabTutor panels are ActiveX controls which interact dynamically with the LabTutor Kernel. They contain all necessary instructions and questions for students. page 49. calibration of transducers. Each experiment page (Figure 1–2) is an HTML document that contains text and LabTutor panels.Experiments LabTutor experiments are multi-page HTML documents that support particular student tasks. and any initial settings. interactive components to display data and accept student inputs and answers. making of PowerLab settings and the input of comments or student answers to questions. Note that PowerLab images in experiments automatically update to match the model of PowerLab that is connected.labdat data file. are obtained through the LabTutor Kernel from the associated . The HTML document specifies which types of panels should be displayed. Figure 1–2 Structure of a typical experiment page Title and Navigation LabTutor Panel Text Instructions LabTutor Panel LabTutor Panel LabTutor Panel Footer 16 Getting Started with LabTutor . LabTutor panels allow the display of sampled data. such as rattling. 3. LabTutor Resources Software and Experiment Updates ADInstruments software is continually being improved and updated. experiment collections and individual experiments are available for download using the Check for Updates dialog. is installed with the LabTutor software. 1.PowerLab Check Please do not connect the PowerLab to a power outlet or a computer until you have checked it as described below. go to: Start > All Programs > ADInstruments > LabTutor > Check for Updates Alternatively. To locate this dialog. open the dialog by clicking Check for Updates… in the Configure LabTutor Experiments utility. go to: Start > All Programs > ADInstruments > LabTutor > Configure Experiments The latest versions of LabTutor software and experiments are also available from the downloads section of the ADInstruments Education website (www. New and updated LabTutor experiments are regularly released and the latest versions of LabTutor and LabAuthor software. 2. Check that there are no obvious signs of external damage. or the PowerLab seems to be damaged in any way. go to: Start > All Programs > ADInstruments > LabTutor > Getting Started with LabTutor Chapter 1 Introduction 17 . contact your authorized ADInstruments representative. To locate it. Check that there are no obvious signs of internal damage. To locate this utility.adinstruments. Check that all items in the accompanying packing list are included in the box.com/downloads/education/) Getting Started with LabTutor A PDF version of Getting Started with LabTutor. If anything is missing. this document. LabTutor Instructor’s Material The following resources are installed with each LabTutor experiment (when the Install instructors material checkbox has been selected in the Install LabTutor Experiments window): • • • Instructor’s Reference Student Laboratory Handout Pre-lab Quiz. To locate the Instructor’s material. Note that using transducers other than those suggested is not recommended. or create your own new experiments. The Instructor’s Reference for each experiment includes setup information for tutors. Specific instructions for performing experiments are contained within the actual experiment pages. go to: Start > All Programs > ADInstruments > LabTutor > LabTutor Experiment Files and look in the folder of the experiment you are interested in. LabAuthor Software LabAuthor software provides an easy-to-use tool for editing and creating LabTutor experiments. You can access the LabAuthor Help at: Start > All Programs > ADInstruments > LabTutor > LabAuthor Help Hardware Owner’s Guides PDF versions of the PowerLab and front-end owner’s guides are installed with the LabTutor software. You can edit any of the preconfigured physiology. They provide detailed descriptions and specifications for each device and can be found in the following location on the C: drive: Program Files \ ADInstruments \ LabTutor \ Documentation \ Hardware Reference 18 Getting Started with LabTutor . pharmacology or biology LabTutor experiments. once installed. Chapter 2 Software Installation 19 . A printed copy of the software license is supplied with the PowerLab and a copy is installed into the documentation folder during the installation process. Please note that each purchased copy of the software only licenses you to use the software on one computer at any one time.2 Software Installation This chapter describes the installation of the LabTutor software. The LabTutor Setup window (Figure 2–1) should appear soon after inserting the CD-ROM.NET Framework and Service Pack (if required) LabTutor software LabTutor experiments Check for updates Configure experiments Figure 2–1 The LabTutor Setup window 20 Getting Started with LabTutor . The Setup window displays messages and guides you through the install process in the following order: • • • • • Microsoft . at least. Note that the Student version of the Setup window has a simplified appearance. Note that LabTutor requires Windows XP Professional with Service Pack 2. See “Administrator Deployment” on page 25 for further details.Installing the Software The supplied ADInstruments Software Installer CD-ROM contains an autorun installer that installs LabTutor and supporting software and documents. locate the Startup file on the CD-ROM and double-click it. If not. Note also that the LabTutor MSI installer supports administrator deployment from the command line for silent. and that you are required to use an administrator account for the installation. first-time or updated installs. Begin installing the experiments on the Installer CD-ROM by clicking LabTutor Experiments in the LabTutor Setup window (Figure 2–1). However. Note that: • You can install the latest experiments directly from the ADInstruments website by clicking Check for Updates… (see Check for Updates. by clicking .NET Framework in the LabTutor Setup window (Figure 2–1) and following the on-screen instructions. 21 Chapter 2 Software Installation . if you wish to install the newer version to a different location. 3. The installer may also prompt you to move your existing experiment files to a shared documents folder. LabTutor Experiments 1. If they are not. you should log on with the same account as was used to originally install the experiments. Begin installation by clicking LabTutor in the LabTutor Setup window (Figure 2–1) and follow the instructions in the window that appears.NET Framework Messages in the setup window indicate whether the . This is to ensure that folder permissions will allow files to be replaced. Select your preferred language for experiments. as necessary. The Install LabTutor Experiments window (Figure 2–2) lists all experiments available on the CD-ROM. Enter license details. • If you are updating experiments. the older version must be uninstalled first. 2. Install the . this is to avoid experiment file access issues. Check Install LabAuthor if you intend to edit existing. LabTutor Software 1. Note that if you are also installing LabAuthor. you must install these components before you install LabTutor. then you should enter the LabAuthor license code. p. the installer will upgrade LabTutor to the newer version without the need to uninstall the older version. If you have an older version of LabTutor installed. Installing Microsoft .NET Framework.NET Framework and associated Service Packs takes about 10 minutes and may require the computer to be restarted. and click Install.NET Framework and Service Pack are already installed. including one of the license codes provided on the LabTutor CD case. and displays the status of any currently installed experiments. or to create new. experiments. 23).Microsoft . 2. go to Start > All Programs > ADInstruments > LabTutor > LabTutor Experiment Files and look in the folder of the experiment that you are interested in. •Any customized experiments. 5. for example Human Physiology. in which case: •Course details and the example data password from the previously configured Index pages are retained. for example. are backed up to a folder in the Experiment Files folder. Note that to locate the instructor’s material once it is installed. you should select the Install instructors material checkbox. To change the location of experiments to be checked. If you are installing experiments to an instructor’s computer. if available. Instructor’s material is installed by default if LabAuthor is installed. To install or update individual experiments click the Experiments tab. click Browse… . 4.3. and where new experiments should be installed. with layout or image changes. The default install location for the Experiment Files folder is: Windows XP: Windows Vista: C:\Documents and Settings\All Users\Shared Documents\ADInstruments\LabTutor C:\Users\Public\Public Documents\ADInstruments\ LabTutor Experiments are typically installed as experiment collections. if you wish to reuse your existing Index pages. 6. 22 Getting Started with LabTutor . You should only clear the Update checkbox for LabTutor Index Pages. otherwise click Install… for the collection you wish to install. You can install or update experiments individually if required. By default. LabTutor Index pages are installed when experiments are installed or updated. Click the Download LabTutor installer link to download the installer for later use. Click Check for Updates… in the LabTutor Setup window (Figure 2–1) to display the Check for Updates dialog (Figure 2–3). displays the status of the currently installed experiments in the selected location allows you to reinstall up-to-date experiments. and: • allows you to select the location of currently installed experiments to be checked. for each available language version. Chapter 2 Software Installation 23 . click the Update… or Install… button next to it. and where downloaded experiments should be installed. To begin download and installation of an experiment collection or individual experiment.Figure 2–2 The Install LabTutor Experiments dialog Check for Updates If you have an internet connection. • • • Click Update… or Reinstall… to update or reinstall LabTutor. by clicking Browse… lists the experiments available from the ADInstruments website. The dialog displays the status of the currently installed LabTutor software. if necessary. See “LabTutor Experiments” on page 21 for further installation details. it is recommended that you check for updated versions of the LabTutor software and experiments once installation is completed. Figure 2–3 The Check for Updates dialog Note that you can open this dialog at a later time by choosing Start > All Programs > ADInstruments > LabTutor > Check for Updates. Configuration After installation is complete, the administrator should configure LabTutor. With the Configure LabTutor Experiments utility, you can configure the course details that appear on the initial LabTutor pages, the experiments that are available and the order that they appear in the List of Experiments, and the experiment Report options. See “Customizing LabTutor Experiments” on page 47 for more details. • • Click Configure Experiments… in the LabTutor Setup window (Figure 2–1) to open the Configure LabTutor Experiments utility. If you decide to configure the experiments, course details or Report options at a later date, go to Start > All Programs > ADInstruments > LabTutor > Configure Experiments. After installation, the administrator can, if required, copy the ‘Clear Student Experiment Data’ shortcut into the Windows Startup folder so that cached experiment data is cleared automatically when a user logs in. This shortcut to the Manage Student Experiment Data utility is installed into Program Files\ ADInstruments\LabTutor\Utilities and uses the /deleteall parameter. 24 Getting Started with LabTutor Further Considerations Remote Experiment Installation LabTutor is able to open experiments from locations other than the local machine, such as file servers and web servers. This allows experiments to be shared efficiently by students. Note that the student data is cached locally as usual, and that data recording still occurs with the locally connected PowerLab. Note that to install LabTutor experiments, you must use a computer that has LabTutor installed on it. The easiest way to make experiments available from a server is to first install the experiments on a computer that has LabTutor installed and then copy them to the server. Remote Experiment Configuration Users can configure the LabTutor experiment files that are stored on a server, if they have sufficient administrative privileges to do so, by clicking Browse... in the Configure LabTutor Experiments utility. See “Experiment Details” on page 42. Security In general, student users should not be allowed to change the LabTutor configuration, alter installed LabTutor experiments, or run the LabTutor utilities. Administrators should enforce this by setting appropriate permissions for the Program Files\ADInstruments\LabTutor folder, the Utilities sub-folder and the Experiment Files folder. Administrator Deployment The LabTutor MSI installer supports administrator deployment from the command line for silent, first-time or updated installs. A typical silent install command line would be: C:\\WINDOWS\system32\msiexec.exe -i LabTutorSetup_v3.0.msi -qn USERNAME=yourname COMPANYNAME=yourorganization LICENSECODE=yourlicensecode where: -i means install the following MSI file, and -qn means no UI; options are -qb (basic UI), -qb! (basic UI, no cancel). Chapter 2 Software Installation 25 The following assigned properties are supported, with allowed values as described: Property USERNAME COMPANYNAME LICENSECODE INSTALLLOCATION INSTALLLEVEL Description defaults to Windows installation username defaults to Windows installation organization, which can be empty LabTutor or LabAuthor license code defaults to C:\Program Files\ADInstruments\LabTutor 1 = LabTutor, 2 = LabTutor+LabAuthor, 3 = LabTutor+LabAuthor+LabAuthor desctop shortcut. 2 and 3 require a LabAuthor license code. No other msiexec command line options or properties are supported. Note that there are two msiexec programs on Vista 64-bit (one for 32-bit installers and one for 64-bit installers), which is why the full path to msiexec must be specified. 26 Getting Started with LabTutor 3 Hardware Basics This chapter describes the basic features of the PowerLab. and the connections made to it. Note that the LabTutor software supplied with the PowerLab should be installed before you connect the PowerLab to your computer. Chapter 3 Hardware Basics 27 . Further details and specifications can be found in the PowerLab owner’s guides installed with the software. This section describes the front panel features: • • • • • • • Power and Status indicators Trigger connector Output BNC connectors Input BNC connectors Input DIN connectors Isolated Stimulator safety switch. 28 Getting Started with LabTutor . indicators and output connectors Bio Amp connector.PowerLab Description The following sections describe the features on the front and rear panels of 15T. Table 3–1 shows the number of each type of connector found on the different PowerLab models. 4/26 and 26T model PowerLabs. and indicators for various functions. 2/26. Table 3–1 Types and numbers of connectors for various PowerLab models Connectors Input BNC Input DIN pod Output BNC Trigger BNC I2C Digital input Digital output Audio output Bio Amp Isolated Stimulator 15T 0 2 2 0 0 0 0 0 1 1 2/26 2 2 2 1 1 1 1 0 0 0 4/26 4 4 2 1 1 1 1 0 0 0 26T 0 4 2 1 1 1 1 1 1 1 The Front Panel The front panel of the PowerLab (Figure 3–1) provides the connectors for obtaining external signals and delivering stimuli. Figure 3–1 The front panels of the PowerLab 15T (top) PowerLab 4/26 (middle) and PowerLab 26T (bottom) Power and status indicators Safety switch Isolated Stimulator indicators Analog output BNC connectors Power and status indicators Analog input DIN connectors Isolated Stimulator. subject cable connector Trigger Analog output BNC connectors Analog input DIN connectors Power and status indicators Analog input DIN connectors Safety switch Isolated Stimulator status and OOC indicators Trigger Analog output BNC connectors Isolated Stimulator. safetyshrouded output sockets Bio Amp input. subject cable connector Chapter 3 Hardware Basics 29 . safety-shrouded output sockets Analog input BNC connectors Bio Amp input. Input BNC Connectors Input BNC connectors allow you to record external signals by connecting transducers with BNC cables to the PowerLab’s input channels. The trigger can also be configured to respond to a contact closure. when present. See Table 3–2 for details. Each input has independently adjustable gains with variable low pass filtering and AC/DC coupling. 30 Getting Started with LabTutor . Pod connectors. Do not attempt to record from both the BNC and DIN connectors of the same input. The analog inputs can record signals from microvolts to a maximum of ±10 V. which allow the connection of ADInstruments pods (a type of signal conditioner) or those transducers designed for direct connection. This gives bipolar (positive and negative signals on the different BNC connectors) or independent output. This input can handle voltages of up to ±12 V. you can use the BNC connector of one input and the DIN connector of another input at the same time. or the signals will interfere with each other. However. where the difference between positive and negative input signals is recorded. When the trigger threshold is crossed. The threshold voltage (the voltage above which the trigger circuit activates) is 1. The Power indicator is a blue LED that simply shows that the PowerLab is getting power. depending on the software settings. The Output BNC connectors can deliver a voltage signal from the PowerLab. The Status indicator flashes different patterns and colors. Trigger Connector The trigger BNC connector allows you to use an external signal to synchronize recording with an external event. depending on the state of the PowerLab. Output Connectors WARNING PowerLab inputs and outputs are not electrically isolated (except for Bio Amp input and Isolated Stimulator outputs). Applying more than ±15 V to the analog inputs can damage the circuitry. and is pre-configured for each LabTutor experiment. described above. and can be used as: • • • Single-ended inputs. where the difference between the signal and ground is recorded. the trigger indicator will glow.Indicators The Power and Status indicators on the front panel should turn on when the PowerLab starts up. Input DIN Connectors The input DIN connectors are also an interface to the PowerLab’s input channels. at the same time.2 V for at least 5 μs. Differential inputs. Please ensure you have read the safety instructions at the front of this manual. Correct safety procedures must be observed when using this input. The signals from this connector are recorded on input channels 3 and 4 of the PowerLab. are supplied with the PowerLab. Green indicates delivery of a stimulus pulse whereas yellow indicates an OOC (out-of-compliance) condition. the safety switch should be turned off. which provide isolated current-controlled stimulus of 0–20 mA. Gain ranges of ±20 μV to ±50 mV are available with a variety of high and low pass filters. There are two indicator LEDs. If the Isolated Stimulator is not being used. A suitable stimulating cable is supplied with the PowerLab. Bio Amp Connector The Bio Amp connector provides access to dual isolated differential amplifiers with a common ground. Correct safety procedures must be observed when using this output. Turn the safety switch off to make connections safely while the PowerLab is on. Chapter 3 Hardware Basics 31 . with a compliance of up to 100 V. suitable for connection to this input. EMG and EEG) can be recorded using the subject cable and lead wires supplied with the unit. Bioelectrical potential signals (such as ECG.Isolated Stimulator Output The Isolated Stimulator output consists of dual safety-shrouded 4 mm sockets. A subject cable and lead wires. See the PowerLab owner’s guide for details. Please ensure you have read the safety instructions at the front of this manual. The Back Panel The back panel of the PowerLab (Figure 3–2) provides sockets to connect the PowerLab to the computer and the power source. This section briefly describes the back panel features: • • • • • • • Figure 3–2 The back panels of the PowerLab 15T (top) PowerLab 4/26 (middle) and PowerLab 26T (bottom) Audio connector I2C connector USB connector Serial connector Digital input and output connectors Ground connector Power switch and socket. and to other devices. USB connector Earthing post Power socket and switch I2C connector USB connector Digital output connector Earthing post Audio output connector I2C connector USB connector Digital input connector Power socket and switch 32 Getting Started with LabTutor . Digital Input and Output Connectors The digital input and output ports (PowerLab 26T only) let you monitor and control external devices. The eight lines of the connector allow control of up to eight devices. I2C Connector The I2C port is a connector on the back panel of the PowerLab that provides power and control signals to ADInstruments front-ends. to control the placement of electrodes. The eight lines of the connector allow monitoring of up to eight devices. The audio output is particularly useful when monitoring nerve firings. Chapter 3 Hardware Basics 33 . The digital output can turn on and off external devices. externally powered speakers or sent to an audio amplifier. or it can signal to some other external devices. and indicator lights. your computer must have USB connectors or a PCI USB card to use the PowerLab.Audio Output Connector The audio output connector provides a stereo audio signal from channels 3 and 4 (the Bio Amp inputs). See the PowerLab owner’s guide for connection details. for instance. relays. It should not be used to connect to the computer. This signal can be monitored with headphones. You can safely disconnect or reconnect the PowerLab while the computer remains on. USB Connector The PowerLab connects to your computer by USB cable. The digital input monitors changes in the state of external devices. Note that cables connected to either the digital input or digital output must be less than 3 m in length in order to maintain EMC compliance. respectively. You should not attempt to use the I2C port to control other devices as it is designed for use only with ADInstruments front-ends. However. with the PowerLab. when a digital input changes to a particular state. for example you can insert a predefined comment automatically during recording. Serial Connector The serial connector is to allow for future enhancements to your PowerLab system. for example pumps. ADInstrumentsLabTutor software should not be running while you do this. Therefore. such as EEG flat electrodes and dry earth straps. The PowerLab 26T and 15T are supplied with a 5-lead Bio Amp cable and lead wires. The power supply is universal. A three pin IEC power socket is used to connect the PowerLab to a three pin earthed (grounded) power cable. with 5 leads attached To electrodes To Bio Amp input The supplied leads click into place in the cable yoke. If the ground connector post is used. The Bio Amp cable is of the sort often used for ECG or EMG studies. and abrasive gel for lightly abrading the skin before the electrodes are attached. and can use all common international mains power supplies (auto-switching. a Tronomed D-1540 cable. the power cord ground connection should not be used: a power cord with no ground connection should be used instead. Figure 3–3 The Bio Amp cable yoke. 100–240 V AC. it uses a shared ground signal for the Bio Amp channels (channels 3 and 4). Power Connection The switch on the back panel turns the PowerLab on and off.Ground Connector The earthing (grounding) stud is an equipotential bonding connection post compatible with the DIN 42801 standard. The Bio Amp Cable Connections are made to the Bio Amp inputs using the supplied Bio Amp cable and leads. The cable plugs into the six-pin input socket on the front panel: a notch in the plug ensures that polarity is correct. and have snap connectors at the other end to connect to typical ECG electrodes. 50/60 Hz). Also available are disposable and reusable electrodes. earthed socket and that the earth is connected. The leads are color-coded for ease of identification. Only the supplied cable and leads should be used as other cables may not meet safety requirements. 34 Getting Started with LabTutor . ADInstruments supplies other types of lead wires that connect to the Bio Amp cable yoke. electrode paste. electrode cream (for reusable electrodes). You should ensure that your power outlet is a three pin. which has a cable yoke for five leads. and observe the Power and Status indicators on the front panel while the PowerLab is starting up. Do not attempt to repair the PowerLab yourself. and waiting for a command from the computer. • • The Power indicator should glow blue while the PowerLab is on. Table 3–2 Status indicator states Status Indicator Off Green Yellow Four red flashes then one yellow Red flashes Meaning Idle and not yet initialized by the software. refer to the ADInstruments website (www. If the PowerLab does not seem to be getting power. Check the connections and cables. Restarting the PowerLab should clear a temporary problem. then there is a problem with the power source. Connect the PowerLab to a power outlet using the power cable that came with your unit. then the PowerLab has detected an error during the self-test. Turn on the PowerLab by pressing the switch located on the rear of the unit. initialized. If the Status indicator stays green. It will repeat until the PowerLab is turned off. The PowerLab has detected an internal fault during the power-up test.adinstruments. Chapter 3 Hardware Basics 35 . or the Status indicator flashes red. 2. Sampling. Idle. Turn on the power at the wall. The PowerLab can now be switched off and connected to the computer. or communicating with the computer. It will repeat until the PowerLab is turned off.The PowerLab Self-test The PowerLab performs a diagnostic self-test each time it is switched on. If the Status indicator is flashing red. The PowerLab has detected a low-level software or hardware fault. even after restarting.com/support/tsupport/education) or contact your authorized ADInstruments representative. The Status indicator should flash yellow and then stay green. you should test that your PowerLab is functioning properly. the internal diagnostic check has completed successfully. as follows: 1. If the Power indicator does not glow blue when the power switch is turned on. power cable or PowerLab itself. Before connecting it to the computer for the first time. Connecting the Hardware PowerLab Before you connect the PowerLab to your computer you should have already installed the software from the Software Installer CD-ROM (see Chapter 2 for details). • Use the supplied USB cable to connect the USB port on the back panel of the PowerLab to a USB port on the computer. and then turn on the PowerLab. Doing so may invalidate the warranty. • Do not disconnect the PowerLab from your computer while the LabTutor software is active as this may cause errors. or to an active USB hub connected to the computer (see Figure 3–4). and to a power supply. Return the unit to your ADInstruments representative for repair. if necessary. Figure 3–4 Connecting the PowerLab to the computer USB icon PowerLab Computer or hub connection USB cable 36 Getting Started with LabTutor . • Connect the PowerLab to a power outlet using the power cable that came with your unit. Turn on the power at the wall.Faulty Equipment The PowerLab has no user-servicable parts inside. The PowerLab must be connected to the computer on which LabTutor is to be used. Do not attempt to open or repair the unit yourself. Front-ends ADInstruments front-ends. In general. Connecting Pods Connect the transducer to the socket on the rear panel of the pod. such as the Stimulator HC. low cost signal conditioners that can be used with pre-calibrated transducers. and the BNC output connector on the rear panel of the front-end connect to one of the input connectors on the front panel of your PowerLab. provide additional features to extend the recording ability of the PowerLab system (but not with the PowerLab 15T). Please consult the documentation supplied with the transducer for further details of how to connect them to the PowerLab. Chapter 3 Hardware Basics 37 . transducers connect to the front of the front-end. The amplification and filtering that the front-end provides is combined with that of the PowerLab and presented in the software as a single set of controls. Because calibration settings are pre-configured for particular transducers.Transducers Only those transducers designed for direct connection should be plugged into the DIN connectors on the front panel of the PowerLab. Do not connect other devices such as front-ends to the BNC connector of the same input used by the pod. Connecting Front-ends Before connecting a front-end to the PowerLab. Pods ADInstruments pods are small. first make sure that the PowerLab is turned off. Then connect the I2C output of the PowerLab to the I2C input of the front-end. Connect the 8-pin DIN cable from the pod to a PowerLab pod port (or a pod port of a Pod Expander connected to the PowerLab). You may need to use a smart connector with the DIN connectors of some models of PowerLab. All ADInstruments front-ends are operated under the full control of the software. Pods plug directly into the DIN connectors on the front panel of the PowerLab and are operated under full software control. using the I2C cable supplied with the front-end. Second and subsequent front-ends can be daisy-chained to the first (Figure 3–5). it is recommended that only the transducer supplied for use with an experiment be used. Figure 3–5 Connecting single and multiple front-ends to PowerLabs Front-end I2C input Front-end analog output Front-end I2C inputs PowerLab I2C output PowerLab I2C output Front-end I2C output 38 Getting Started with LabTutor . Chapter 4 Using LabTutor 39 .4 Using LabTutor This chapter provides general instructions for using and customizing LabTutor. Note that specific instructions for each experiment are contained in the experiments themselves. Guidance on using LabAuthor can be found in the LabAuthor Help. Each student has an individual login. each student requires repeated access to their individual experiment files. Students must each have individual logins. Shared Logins In this scenario. or group of students. or a group of students share the same login. Students need not have logins at all. Managing Cached Experiment Files An experiment files cache contains a folder for each LabTutor experiment that is viewed. Two possible scenarios for managing user logins are: • • Students have no logins at all. or all students share the same login. Instructors can: • • manage how the cache is cleared export data from the cache for their own use. completes an experiment in a single session and does not require repeated access to the same experiment files. or all students may share the same login. The Experiment Files Cache When experiment pages that contain LabTutor panels are viewed for the first time the following file structure is created on the C: drive (if not already present): 40 Getting Started with LabTutor . or a group of students must share the same login.User Login Scenarios How students log on to the computers that run LabTutor has consequences for how cached LabTutor experiment files are managed. Students are able to review their previous work in subsequent sessions. Individual/Group Logins In this scenario. or a group of students require access to the same experiment files. Before a student begins a session the cache of experiment files left by the previous student must be cleared so that the current student is able to view the installed experiment files rather than the cached files left by a previous student. each student. select the experiment you would like to export the data from. In the dialog that appears (Figure 4–1). and click Export Data… (see Figure 4–1). it is the cached experiment data that is displayed. open the Manage Student Experiment Data utility. • Exporting Experiment Data Instructors can export student experiment data as LabChart data files (. possibly because they have been inactive LabTutor exits. Note that placing the mouse cursor over the title of an experiment displays details of when that experiment was started. If an experiment is revisited. This ensures that the installed experiment files are not altered. or as their own example data. Chapter 4 Using LabTutor 41 . or when other changes are made. Clearing the LabTutor Cache The data for each LabTutor user is stored in the experiment files cache.Windows XP: Documents and Settings\<user name>\Application Data\ ADInstruments\LabTutor Experiment Cache Windows Vista: Users\<user name>\Application Data\ADInstruments\ LabTutor Experiment Cache When data are recorded. When all students share the same login. LabTutor automatically saves student data to the cache when: • • • • sampling stops other data has been entered or changes made the documents close. it is the cached experiment files that are updated.adicht) for use in the ADInstruments LabChart application. This is a shortcut to the Manage Student Experiment Data utility and uses the /deleteall parameter to remove all cached experiment data for the current user. To export the data. select experiments with data to be cleared and click Delete Data. Options for clearing the cache include: • Choosing Start > All Programs > ADInstruments > LabTutor > Manage Student Experiment Data. You can only export from one experiment at a time. this cache must be cleared before each student session. so that each student is able to work with clean copies of the installed experiment files. Using the Clear Student Experiment Data shortcut in the Program Files\ ADInstruments\LabTutor\Utilities folder. Then: • • • • • • Choose the if more than one Click Browse… to configure another set of experiments. The order and availability of experiments on the List of Experiments page (LabTutor. department name and organization name) on the Welcome to LabTutor page (index. Click on an experiment title and use the Move Up and Move Down buttons to reorder the list.html) and the List of Experiments page (LabTutor. 42 Getting Started with LabTutor . or after manually adding or removing experiments. Edit the course details as required. such as experiments stored in a different location. Note that you should configure the initial experiment pages whenever you install or uninstall LabTutor experiments. Enter a password for controlling access to example data (see page 46).html). • • To configure these details choose Start > All Programs > ADInstruments > LabTutor > Configure Experiments to open the Configure LabTutor Experiments utility (Figure 4–2). Select the checkboxes for the experiments you wish to be available on the List of Experiments page.Figure 4–1 The Manage Student Experiment Data dialog Configuring LabTutor Experiments Experiment Details Instructors can configure the following: • The course details (course title.html). The password that controls appending example data. it is converted into Rich Text Format (. to a location selected by the student. when configured. the identifying details in the subject line and body of the email include text from the Identification panel at the top of the Report. Email either the Report. Figure 4–3 Experiment Report page buttons Chapter 4 Using LabTutor 43 .Figure 4–2 The Configure LabTutor Experiments utility overlaid on the Welcome to LabTutor page Report Options The buttons at the bottom of the Report page of each experiment (Figure 4–3). Print just the Report. allow students to: • Submit just the Report. in HTML format. or the whole experiment. by email. or the whole experiment. Save either the Report. • • • When just the Report is exported. with graphics preserved. A dialog allows the student to select a destination if more than one has been specified in the Report Options dialog (see page 44). When it is emailed.rtf). to an address supplied by the student. ltexs file to unpack the contents to a specified location and then access the experiment. Instructors can configure: • • • • the availability of the Report page buttons the availability of export formats when the Email and Save buttons in the Report are clicked the destination addresses available when the Submit button in the Report is clicked the server to use when the Submit and Email buttons in the Report are clicked. Figure 4–4 The Report Options dialog 44 Getting Started with LabTutor .ltexs). which has a link to the first page of the experiment. in a self-contained experiment file (. Open the .When the whole experiment is saved or emailed. To configure the Report page buttons. Note that you should do this after first installing the LabTutor experiments. Note that the self-contained experiment can only be used on a computer with LabTutor installed. the experiment files are packaged along with an associated HTML file. click Report Options… in the Configure LabTutor Experiments utility (Figure 4–2) to display the Report Options dialog (Figure 4–4). When the Email button in the Report is clicked. the Save button is enabled in the Report. Note also that with LabTutor 3. At least one of Experiment report (RTF) or Whole experiment must be checked. Experiments that were released before June 2007 will not show this button.4.) or a comma (. Email When Email is checked. the Report is attached to an email in Rich Text Format (.rtf). If more than one destination has been specified in the Submit destinations area of the Report Options dialog (Figure 4–4). the Submit button is enabled in the Report.). at the top of the Report. LabTutor 1. The Report is exported in Rich Text Format (. the Email button is enabled in the Report. Save When Save is checked. When the Save button in the Report is clicked. the Report is sent as an HTML file to the default printer. Note that the Print button is only available in experiments released for. If both export types are available a dialog (Figure 4–5) allows the student to choose the format to be used. in the subject of the email is sent via the specified SMTP server. Multiple addresses may be entered by separating them with a semi-colon (. clicking the Submit button displays a dialog from which a destination can be selected. Multiple addresses may be entered by separating them with a semi-colon (. the Print button is enabled in the Report. When the Submit button is clicked. and later. either the whole experiment or just the Report is emailed to an address supplied by the student.rtf). or after. The email: • • • uses the From address value as the sender address includes the first line of text from the Student Identification panel. Microsoft Word need not be installed to support Report printing.Submit When Submit is checked. Chapter 4 Using LabTutor 45 . either the whole experiment or just the Report is saved to a location supplied by the student.). with graphics preserved. When the Print button in the Report is clicked.) or a comma (.0. Print When Print is checked. Experiment Report (RTF) Use Experiment report (RTF) to enable this export type when either the Email or Save button in the Report is clicked. ) to specify this Windows service. If both export types are available a dialog (Figure 4–5) allows the student to choose the format to be used.Figure 4–5 The dialog for choosing export type when both are enabled Whole Experiment Use Whole experiment to enable this export type when either the Email or Save button in the Report is clicked. xx@xx. The example data is 46 Getting Started with LabTutor . The experiment is exported as a selfcontained experiment package. and is included to satisfy some mail servers.) or a comma (.xx). Remove and Edit… buttons to modify the list of destinations. The address need not exist and would not normally be able to be replied to. An address may not be required if the SMTP forwarding service of your Windows operating system is installed. From Address The From address is used as the sender’s email address when the Submit or Email buttons are clicked. smtp.). Use the Add.xx). Enter the address using the correct format (i. Enter a period (. The name field might include details such as a course number or lab stream identifier.xx. or when they are unable to record data for all exercises. The address must be in the correct format (i. The default address is [email protected]. SMTP Server The SMTP server is the network address of the outgoing mail server (SMTP). Multiple addresses may be entered for each name by separating them with a semi-colon (.xx). Example Data Example data is provided for students to append to their own data when they are unable to complete the experiment with the data they have recorded. The addresses must be in the correct format (i.e. At least one of Experiment report (RTF) or Whole experiment must be checked. Submit Destinations The email addresses in the Submit destinations area are those to which Reports are submitted when the Submit button is clicked.e. [email protected]. To append the example data for the currently open experiment: 1. Details of PowerLab operation are contained in the Owner’s Guide supplied with it. Turn on the PowerLab using the power switch on the rear panel. and are distinguished in the LabTutor panel by a frame. and then Starting an Experiment. Starting the PowerLab Before starting the PowerLab. Guidance on using LabAuthor can be found in the LabAuthor Help. the drivers for it must be installed. check that it is connected to a power outlet. Enter the password in the dialog that appears. Click Add Data to append the example data to the student’s data.stored in the experiment files. Starting LabTutor Begin a LabTutor session by: • • Starting the PowerLab. to suit your institution’s particular experimental procedures for example. Simply follow the on screen instructions as the driver files are already on your hard drive. Access to example data is password controlled. and to the computer using a USB cable. 3. Chapter 4 Using LabTutor 47 . Customizing LabTutor Experiments Instructors may wish to: • • • edit the text in experiment pages. Right–click on the Start button in the LabTutor panel and choose Add Example Data… 2. add or delete questions and Answer panels in Report pages. Note that when a PowerLab is first switched on after installing LabTutor. Note that the password controlling access to the example data is set in the Configure LabTutor Experiments utility (see page 42). These task are performed using the LabAuthor application that can be installed with LabTutor. create completely new experiments. 30 seconds after you close all LabTutor experiment pages. Starting the LabTutor Kernel Opening an experiment will launch the LabTutor Kernel. or • double-clicking the LabTutor Experiments desktop shortcut. by either: • choosing Start > All Programs > ADInstruments > LabTutor > LabTutor Experiments. If the LabTutor Kernel is unable to find a PowerLab at startup. Note that LabTutor must be used with Internet Explorer. on the Welcome to LabTutor page. You can exit it by right-clicking on the LabTutor icon in the task bar and choosing Exit LabTutor Kernel. if present. 3. For guidance on how to use LabAuthor please consult the LabAuthor Help.Starting an Experiment With Internet Explorer as the default web browser. 48 Getting Started with LabTutor . If an experiment page is opened in another browser an alert is displayed. Starting LabAuthor Begin a LabAuthor session by either: • • choosing Start > All Programs > ADInstruments > LabTutor > LabAuthor. or double-clicking the LabAuthor desktop shortcut. an alert is displayed (see page 56). Click the appropriate link on the List of Experiments page to display the first page of the required experiment. Exiting the LabTutor Kernel The LabTutor Kernel exits automatically. Click Enter. 2. Display the Welcome to LabTutor page. you start a LabTutor experiment as follows: 1. A P P E N D I X A P P E N D I X A A LabTutor Panels This appendix describes the panels that may appear in LabTutor experiment pages. Appendix A LabTutor Panels 49 . Note that the controls available in each panel may be limited to just those required for that stage of the experiment. 50 Getting Started with LabTutor . Next. or if there is no selection. Calibration Panel The Calibration panel is used to convert measured voltages into suitable values and units for display. If the relationship between the displayed voltage and the measured property is known. A two-point calibration can be made using recorded measurements or using a known linear relationship for a transducer. To calibrate using recorded measurements for two known conditions. The comment is added at the currently selected point in the data. or to all channels. then the raw values can be typed directly into the left-hand boxes and the converted values into the right-hand boxes. select the point or area in the waveform corresponding to the other condition. and may apply to a single channel. and can be displayed later in the experiment. click the arrow button for point 2 and type the known value into the right-hand box. The text is saved. Converted values may be preassigned and unable to be changed.Answer Panel The Answer panel is used to enter text. first select the point or area in the waveform corresponding to one condition. at the end of the data. click the arrow button for point 1 and then type the known value into the righthand box. Answer panels can contain a title bar. such as on the Report page. Comment Panels The Comment panels are used to enter comments into the LabTutor panel either during or after recording. Y-axis and data sets. The first line of text in the Student Name field is appended to the subject of the email when the Report is submitted. and the user login and computer name. The graph updates as values are added to the table. Appendix A LabTutor Panels 51 . When using a line or scatter graph. These are displayed in the Legend Panel. or as table values are edited. The panel also displays the session start time and the current time. if applicable. Scatter’ or ‘Line’) and to enter a graph title and labels for the X-axis. LabTutor can fit a curve to the data and calculate some statistics. on the right side. The Student Defined Graph allows students to choose the graph type (‘Bar’. Identification Panel The Identification panel appears on Report pages and allows students to enter identifying details such as their name. such as the r2 value and the Sum of Squared Errors.Graph Panel The Graph panel is used to display a relationship between two or more columns of values from an associated Table panel. Graphs may have a second Y-axis scale. Channel separator . Horizontal scroll bar .starts and stops recording.rescale the data in the channel to zoom in or out. Time axis compression buttons . Amplitude axis . Click its home position to return it.restores the amplitude axis and horizontal compression to the original settings. Auto Scale button .the black line between channels which can be dragged to adjust the display area for each channel.drag in various ways to rescale the channel. The extent of appended data is indicated by a bar at the top.deletes selected data from all channels.can be dragged onto the data trace so as to make relative measurements. Data points in the panel can be selected for display in Value panels. Go to End of Data button Scaling buttons . Start/Stop button .LabTutor Data Panel The LabTutor panel is used to display sampled data.scales each channel so that the currently visible data use as much of the channel height as possible. 52 Getting Started with LabTutor .adjust the scale of the time axis. The following controls may be available: • • • • • • • • • • • Delete Data button . Default Scale button . Marker .is used to review previously recorded data. Comments and live data readouts are displayed. even while recording. The Stimulator is only usable. the PowerLab. If a curve is fitted to the data. Stimulator Panels The Stimulator panels are used to control settings for the Stimulator connected to. and the Stimulate button is only enabled. the panel displays details such as the function type and the fitted equation. Appendix A LabTutor Panels 53 .Legend Panel The Legend panel is used to identify the data sets in an associated Graph panel. or built into. Spirometry Panel The Spirometry panel is used to enter a constant value to compensate for breath-dependent drift when integrating the flow signal from the Spirometer or Spirometer pod. during sampling. Simplified forms of the Stimulator panel are used when fewer stimulus parameters need adjustment by the student. Readout Panel The Readout panel displays a continuous real-time readout of data during sampling. Cells with a blue background are locked. A value in a Value panel can be pasted or dragged into a Table panel cell. Cells with a white background are editable. 54 Getting Started with LabTutor . The value can also be dragged into a Table panel cell. before starting recording. Clicking the icon at the right of the Table title bar copies all the data in the table so that it can be pasted into another application. such as into a Table panel cell. The button title is customizable to suit the attached hardware. transfers the data value at that point to the Value panel. or on the time axis. either because they contain labels or they perform calculations on values from other cells of the table. Clicking on the value in the Value panel copies the value to the clipboard so that it can be pasted elsewhere. such as a pod. Zero Inputs Button The Zero Inputs button is used to zero the offset in the signals from all signal conditioners attached to the PowerLab. Value Panel The Value panel is used to obtain data values from the waveform of a particular channel. Clicking on a data point of the recording.Table Panel The Table panel is used to display data values and to perform calculations. p. 60 Another Student’s Data Appears in Experiments. p. p. 56 PowerLab Required for Experiments. p. p. 56 PowerLab Unavailable Alert. If these hints do not help solve an issue then please contact your ADInstruments representative. p. 58 Connection to PowerLab Lost. 61 No Password Protection for Example Data. General Problems. 61 Report Buttons Inoperative.A P P E N D I X B B • • • • • • • • • Troubleshooting This appendix sets out the steps that students and instructors can follow if they encounter trouble running LabTutor experiments. p. 57 Disabled Controls. p. p. 59 LabTutor Panels Don’t Display. and these situations are also indicated. There are situations where it may be necessary to seek further assistance with a particular problem. 62 Appendix B Troubleshooting 55 . This restarts the LabTutor Kernel. 4. 2. 3. or replacing it with another that is known to be good. is worthwhile if the instructions above don’t help. then click the Restart button. Exit the LabTutor Kernel. and be turned on. A final step is to reinstall LabTutor. Re-open the experiment (this will relaunch the LabTutor Kernel). 56 Getting Started with LabTutor . should first be addressed as follows: 1. Check that the PowerLab is connected. which has previously worked.General Problems In general. and turn it off and on again. Exit Internet Explorer. any difficulties with running a LabTutor experiment. Note that reinstalling experiments will overwrite (replace) any customizations that have been made to any experiment page. PowerLab Unavailable Alert Symptoms: The following message is displayed in the Introduction page of an experiment when LabTutor is started and no PowerLab is detected: Explanation: A PowerLab must be connected to the computer running LabTutor. then reinstalling the experiment is the next option. Solution: Connect the PowerLab to the computer and turn it on. If this does not help. for LabTutor to be able to record data and perform other functions. Checking the USB cable. and the following message is displayed. recording and entry of experimental data is unavailable.. Clicking Start. Solution: Students and instructors should follow the instructions in the PowerLab Unavailable dialog.PowerLab Required for Experiments Symptoms: Controls in LabTutor panels are disabled. displays the following dialog: Explanation: LabTutor experiments can be displayed but cannot be started unless a PowerLab is connected to the computer running LabTutor and is turned on. If no PowerLab is available. the Start button changes to Start.. that is: connect the PowerLab to the computer and switch it on. Appendix B Troubleshooting 57 . then click Restart in the dialog to restart the LabTutor Kernel... that is: connect the PowerLab to the computer and switch it on. 58 Getting Started with LabTutor .Disabled Controls Symptoms: Some controls in LabTutor panels are disabled and the Start button changes to Start. Solution: Students and instructors should follow the instructions in the PowerLab Unavailable dialog. then click Restart in the dialog to restart the LabTutor Kernel... controls that affect PowerLab function will be disabled. displays the following dialog: Explanation: A PowerLab must be connected to the computer running LabTutor. Clicking Start. or perform other functions. for LabTutor to be able to record data... and be turned on. If no PowerLab is available. Click Restart in the dialog to restart the LabTutor Kernel. Solution: Check that the PowerLab is turned on and the Power indicator on the front panel is lit.Connection to PowerLab Lost Symptoms: When Start is clicked. The USB connection may have been lost or the PowerLab may have lost power supply. the following error message appears: Explanation: The LabTutor Kernel is no longer connected to the PowerLab. Check that the PowerLab is connected to the computer with a USB cable that is known to work well. Appendix B Troubleshooting 59 . although it was previously. B. perhaps through manual editing. Solution: A. There are multiple variants of the following message: Explanation: A. An administrator should reinstall LabTutor. Various versions of this message indicate that the experiment or associated files have been corrupted. and a warning message is displayed instead. 60 Getting Started with LabTutor . C. Open the experiment with Internet Explorer 7. Either LabTutor files or the experiment Template files have been corrupted. A. or later. B. or later.0.LabTutor Panels Don’t Display Symptoms: LabTutor panels do not display in experiment pages. C. B.0. An administrator should reinstall the LabTutor experiments. C. The experiment has been opened in a browser other than Internet Explorer 7. 41). 61 Appendix B Troubleshooting . Explanation: The experiment has already been performed with the same user login.Another Student’s Data Appears in Experiments Symptoms: Experiment pages unexpectedly contain data. See “Experiment Details” on page 42. p. Solution: Run the Configure Experiments utility to set the Example data password. No Password Protection for Example Data Symptoms: After right-clicking the Start button and choosing Add Example Data… the following dialog is displayed: Explanation: A password has not previously been set in the Configure LabTutor Experiments utility. A blank password is permitted. Solution: Delete the cached data for the experiment and then restart the LabTutor experiment (see Clearing the LabTutor Cache. Note that the experiment must be closed before cached data can be deleted. B. Solution: A.Report Buttons Inoperative Symptoms: A. B. The Report options have not been configured. p. 17). p. The Submit or Email buttons on the experiment Report page are shaded out and an error message appears when these buttons are clicked. Click Report Options… in the Configure LabTutor Experiments utility (see Report Options. An updated version of the experiment must be installed. The experiment is compatible with a version of LabTutor prior to LabTutor 1. 62 Getting Started with LabTutor . Explanation: A. Open the Check for Updates dialog and download the latest version of the experiment (see Software and Experiment Updates. B. The Print button is unavailable. 43).4. 37 transducer 37 F front panel 28–31 G graph panel 51 I identification panel 51 Install LabTutor Experiments 21 installation 20–24 Check for Updates 20. 41 calibration panel 50 Check for Updates 17 cleaning the hardware 10 clearing experiment data 41 comment panel 50 Configure LabTutor Experiments utility 17. 44 configuring experiments 24. 42. 23 Index 63 . 42 Report options 43 connecting the PowerLab by USB 36 connections digital 33 ground 34 pod 30. 23 exporting experiments 43 student data 41 C cached experiment data 40.Index A administrator deployment 25 answer panel 50 audio output 33 D deleting data 52 digital input and output 33 DIN input 30 B back panel 32–34 Bio Amp cable 34 input 31 bipolar output 30 BNC input connectors 30 output connectors 30 E example data appending 47 password 42 exiting the LabTutor Kernel 48 experiment page structure 16 experiments cache clearing 41 configuring 42 remote configuration 25 remote installation 25 self-contained 44 starting 48 updates 17. 23 spirometry panel 53 starting a LabTutor session 47–48 experiments 48 the LabTutor Kernel 48 the PowerLab 47 Status indicator 30. 25 Configure LabTutor Experiments 20. 24 instructor’s material 18. 35 stimulator panels 53 storage 10 student defined graph 51 student identification panel 51 system requirements 14 M maintenance 10 MSI installer 25 N . 22 Isolated Stimulator output 31 safety switch 31 I2C port 33 starting 47 transducer connection 37 printing the Report page 45 R readout panel 53 reinstall 23 remote experiment installation 25 remote experiments configuration 25 removing experiment data 41 Report Options dialog 43–46 reports configuration 43 exporting 43 printing 45 L LabAuthor 18 installing 21 starting 48 LabTutor components 14 resources 17–18 starting a session 47–48 updates 17 LabTutor panel 52 legend panel 53 live readout panel 53 logins 40 S safety 7 Safety Notes 5–11 security 25 self-contained experiments 44 self-test 35 serial port 33 software 18 software updates 17.NET Framework installation 21 P pod connection 37 connectors 30 Power indicator 30. 35 PowerLab back panel 32–34 check for damage 17 computer connection by USB 36 description 28–34 faults 36 front panel 28–31 pod connection 37 pod connectors 30 power connection 34 safety 7 self-test 35 T table panel 54 transducer connection 37 trigger input 30 64 Getting Started with LabTutor .command line-driven 20. 36 V value panel 54 version 14 Z zero inputs button 54 Index 65 .U update experiments 17. 23 USB port 33. 66 Getting Started with LabTutor .