Documentation. Installing and Maintaining the MeasureNet Laboratory

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1 Documentation Installing and Maintaining the MeasureNet Laboratory

2 Contents Introduction... 4 Network Components...5 Introduction... 6 Station... 7 Controller Spectrometer PC Product Dimensions Hardware Installation...17 Introduction Network Layout Assembling the Network Software Installation...28 Introduction Configuring the Lab PC Installing the Lab PC Software...34 Installing the Remote Monitor Installing the Update Manager MeasureNet Software...43 The MeasureNet Software MeasureNet PC Software Remote Monitor Update Manager Online Data Storage...52 Introduction Online Use Uploading Data in the Laboratory...63 Probes...68 Introduction Multi-Function Colorimeter Conductivity Drop Counter ph Probe Pressure Probe Temperature Probe Voltage Probe Spectroscopy...84 Introduction

3 Setup Using the Spectrometer Spectrometer Configuration Quick Start Guide...95 Introduction Sample Manipulation Troubleshooting Introduction Appendices Broadcast/Demo Operation Mode Quizzes

4 Introduction The goal of this document is to provide the user with a complete understanding of the MeasureNet system. This is accomplished with discussion of the system from its discreet parts through its assembled form. The guide may be used for preforming a complete or partial installation, using the system, and determining specifications of individual probes. It is written with the lab instructor in mind but is also useful for institution IT. The form of this document is linear, beginning with an unassembled network, continuing through installation, and finally detailing use. For a specific institution, it is easy to navigate to a location that is relevant to particular needs. If there is any section that does not fulfill your specific needs, be sure to contact MeasureNet at 4 Introduction

5 Network Components

6 Introduction The MeasureNet network consists of several integral components, namely the workstations, the Unity Controller, and the PC. Networks can also have one or two spectrometers. This chapter evaluates these components and their configuration in detail. If you are installing the MeasureNet hardware, this section has important information concerning product dimensions and connectors. Components This section will cover the layout of the following components: 6 Station Controller Spectrometer PC Network Components

Station The station (Figure 1) is an integral part of the network and is the interfacing device for the student. It is from the workstation that the student carries out their experiments.

7 Station The station (Figure 1) is an integral part of the network and is the interfacing device for the student. It is from the workstation that the student carries out their experiments. An individual network can host up to 15 workstations. An procedural example for navigating the station can be found in the Quick Start Guide section. Front View Figure 1: The MeasureNet station. Components 7 A. Display. The display is the main source of information for the user. B. Power button. The ON/OFF button. C. Function keys. The function keys, or F-keys, are the primary keys in navigating the station menu system. D. Main menu keys. These keys are important for selecting particular options with experiments as well as navigating the station. E. Numeric keypad. The keypad is for entering particular data related to experiments, such as setting particular variables within an experiment. Network Components

8 Rear/Bottom View The bottom of the workstation is where all of the probe connectors are located as well as the power and network connectors. Also on the bottom of the workstation are the DIP switches for setting the station number and adjusting the display contrast. Figure 2: The back of the MeasureNet station. Components 8 A. DB15 connector. This 15 pin connector is used for connecting MeasureNet probes. In particular, the drop counter and the balance both connect to this connector. B. DB9 connectors. These connectors are used for connecting MeasureNet probes. There are two of these nine-pin connectors;you can plug in two probes at once, or two of the same probe using the Dual Input Adapter described in the probe section. (One exception to multiple probe connections is the colorimeter, where the second DB9 connector must be free empty. Described in the Multi-Function Colorimeter section.) C. BNC connector. This connector is standard for ph probes, and will work with the MeasureNet ph probe as well as most other standard ph probes. Voltage may also be measured using the BNC connector. Note that the input voltage for the BNC connector is ± 2.5 volts. D. Power connector. This is where the power source plugs in. MeasureNet provides the 5V power supply necessary for powering the the station. E. Network connectors. The network cable plugs into either one of these network connectors. F. Station number. The DIP switches are used for assigning station numbers. Below is an in depth overview of setting the station number (Figure 3). G. Contrast control. This controls the contrast for the station display. Use a small screwdriver to adjust the contrast. Network Components

Setting the Station Number Each workstation on a network must have a unique number. The station number is controlled by a set of DIP switches on the rear of the station.

9 Setting the Station Number Each workstation on a network must have a unique number. The station number is controlled by a set of DIP switches on the rear of the station. Figure 3 shows the DIP switch positions for each station number. White above black means that that switch has been flipped up. For example, station 2 would have the leftmost switch in the down position while the second switch is flipped up. The remaining switches are all in the down position. Figure 3: DIP switch configurations and their corresponding station number. 9 Network Components

10 Controller The controller is the 'brain' of the network. It is the starting point, as well as the hub to the lab PC. Front View Figure 4: The MeasureNet controller. A. Display. The display on the controller shows whether the controller is on, the controller version number, as well as any status information conveyed by pressing the F1 key (Figure 4). B. Power Button. Turns the controller on, off. C. Function keys. These buttons are for specialized uses of the controller. Pressing the F1 button will give you important controller information. Pressing F5 then F4 will restart the controller. Rear View The rear of the controller has all the connectors. Most important, there is the power connector, the Ethernet connector, and the CAN connectors. Figure 5: The back of the MeasureNet controller. 10 A. CAN connectors. There are two CAN connectors on the back of the station (Figure 5). The connector to the right of A (without the cap) is used to connect to the stations. The connector to the left of the A (covered) is used for a second spectrometer, described in detail in the spectroscopy section. B. Ethernet port. This port is used to connect the controller to the PC via Ethernet cable. C. Power connector. For plugging into an outlet. MeasureNet will provide you with the correct power supply. Network Components

Spectrometer The spectrometer is connected to the network much like the workstations. If used, a second spectrometer connects to the network in a different fashion, described in the Spectroscopy.

11 Spectrometer The spectrometer is connected to the network much like the workstations. If used, a second spectrometer connects to the network in a different fashion, described in the Spectroscopy. Front view Figure 6: The MeasureNet spectrometer. 11 A. Display. The display is the main source of information for the user. B. Power button. The ON/OFF button. C. Funtion keys. These keys preform specific tasks while interfacing with the spectrometer. D. Numeric keypad. The keypad is for entering particular data related to experiments, such as setting particular variables within an experiment. Network Components

12 Rear View Figure 7: The back of the spectrometer. 12 A. Light source power connector. The light source provided by MeasureNet plugs into the back of the spectrometer via this connector. B. Power connector. The spectrometer plugs into an outlet with the power supply provided by MeasureNet. C. Network connector. The network cable plugs into either one of these network connectors and then into the junction box. If it is the second spectrometer on the network, the cable connecting in this port feeds straight from the controller. This is discussed in detail in the Spectroscopy section. D. Contrast adjuster. This hole has a knob inside adjustable with a small screwdriver. This is useful if the station screen is too dark or washed out. E. Fiber optic connector. The fiber optic cable from the light source plugs into this connector. Network Components

13 UV/VIS Light Source The UV/VIS light source is used for absorption measurements. For emission measurements, the fiber optic cable is used alone. The nominal wavelength range is nm. Figure 8: The spectrometer lamp source. 13 A. Optical fiber cable. The fiber optic cable provided plugs into the cell holder of the lamp and then into the back of the spectrometer in the port labeled Fiber Input. In Figure 7 it is labeled E. B. Cell holder. The cell holder is where you insert the cuvet containing a solution. It can be zeroed with the provided opaque cuvet (E in Figure 8). C. Lamp. The lamp is used for absorption measurements. The nominal wavelength range is nm. D. Power cable. This cable plugs into the back of the spectrometer (Figure 7 A). E. Zeroing cuvet. The spectrometer kit includes a filled cuvet used for zeroing the spectrometer. Also included is a set of empty cuvets Network Components

14 PC The PC is the main interface for the lab instructor. All the data from each student workstation is saved on the PC through the MeasureNet Software. The main functions of the PC are to collect and display data, store the data locally and on the cloud, and interface with a printer. To learn more about the MeasureNet Software, see the software section of this guide. Connecting to Controller The PC is connected to the network through the controller by means of an Ethernet cable. This process is outlined in the Software Installation section. Connecting to Printer Your institution should ensure that the lab PC is connected to a printer in order to print graphs and other experiment information. 14 Network Components

Product Dimensions These dimensions are essential for

mount orientations, pictured in Figure 9 and Figure 11.

15 Product Dimensions These dimensions are essential for knowing what space is necessary for installing the MeasureNet network. Station and Spectrometer The station and spectrometer have the same dimensions. Both can be preconfigured in either desk mount or wall mount orientations, pictured in Figure 9 and Figure 11. Desk Mount Figure 9: The station. Figure 10: Desk mount dimensions. Wall Mount Figure 11: The station 15 Figure 12: Wall mount dimensions. Network Components

16 Controller Figure 13: The controller. Figure 14: The controller dimensions. Stand The stand is an optional component of the MeasureNet system. It is only be used for stations in the wall mount configuration. Figure 15: The stand. 16 Figure 16: The stand dimensions. Network Components

17 Hardware Installation

Introduction This chapter is a step by step guide for installing the MeasureNet network in the

It will cover how the network is to be positioned, how to correctly connect the stations to the

Necessary Tools All the tools and resources necessary for installing the MeasureNet network are

The stations and controller are interconnected using telephone wire (Figure 17). Connector.

Cable stripper and crimper. This is used to assemble the telephone wire (Figure 19).

This device tests the assembled cables in order to ensure there are no faults (Figure 20).

18 Introduction This chapter is a step by step guide for installing the MeasureNet network in the chemistry lab. It will cover how the network is to be positioned, how to correctly connect the stations to the controller, all the tools necessary for installation and how to use them, and installing the controller. If the network has already been installed, then skip to the Software Installation chapter. Necessary Tools All the tools and resources necessary for installing the MeasureNet network are included with the system: Cable. The stations and controller are interconnected using telephone wire (Figure 17). Connector. These are RJ11 connectors used at either end of the cable (Figure 18). Cable stripper and crimper. This is used to assemble the telephone wire (Figure 19). Cable tester. This device tests the assembled cables in order to ensure there are no faults (Figure 20). Junction Box. These join the wires connecting the stations (Figure 21). Ethernet cable. This cable is used to connect the PC with the controller (Figure 22). Controller connector. This nine-pin connector is how the stations connect to the controller (Figure 23). Figure 17: Network cable. Figure 18: Connector. Figure 19: Crimper/stripper. Figure 20: Cable tester. Figure 21: Junction box. Figure 22: Ethernet cable Figure 23: Controller connector. 18 Hardware Installation

Network Components The basic MeasureNet network consists of stations, a controller, a PC, and optionally a

Components and relevant dimensions are listed below: 19 Station. Stations are the main interface for the students.

Stations can be mounted in either desk-mount or the wall-mount configuration (Figure 24). Spectrometer.

It also can be mounted either in the desk-mount or wall-mount configuration (Figure 26). Unity Controller.

The stations are connected to the controller by the controller connector and the PC is connected by an Ethernet

The power supplies for the station and spectrometer are different; the station uses a 5V power supply (Figure 25)

19 Network Components The basic MeasureNet network consists of stations, a controller, a PC, and optionally a spectrometer. A network can support up to fifteen stations and two spectrometers. Components and relevant dimensions are listed below: 19 Station. Stations are the main interface for the students. The probes, power supply, and network cable all plug into the station. Stations can be mounted in either desk-mount or the wall-mount configuration (Figure 24). Spectrometer. The spectrometer has dimensions which are identical to the station. It also can be mounted either in the desk-mount or wall-mount configuration (Figure 26). Unity Controller. There is one controller per network. The stations are connected to the controller by the controller connector and the PC is connected by an Ethernet cable (Figure 27). Power supplies. The power supplies for the station and spectrometer are different; the station uses a 5V power supply (Figure 25) while the spectrometer uses a 12V supply (Figure 28). Stands. The stand is an optional part of the network which is associated with wall-mount stations. These stands come equipped with Velcro which is also on the back of the stations (Figure 29). Figure 24: Station. Figure 25: Power supply. Figure 26: Spectrometer. Figure 27: Controller. Figure 28: Controller power supply. Figure 29: Stand. Hardware Installation

Network Layout This section discusses how to place a MeasureNet network in a lab and explores various methods for wiring up your stations and your controller.

20 Network Layout This section discusses how to place a MeasureNet network in a lab and explores various methods for wiring up your stations and your controller. Placement The stations, spectrometers, and the controller need to be physically positioned in the lab in order to prepare for wiring the network. The placement of these components is essential for estimating the length of cable used to connect the stations and the controller. The stations are available in two distinct configurations: desk mount and wall mount. Consult the network components to verify which configuration you have. Wiring Parallel The MeasureNet network is wired using the 'parallel' connection method (Figure 30). This method utilizes the junction boxes where multiple stations and other junctions boxes can be interconnected. This effectively creates a network with four or five junction boxes which connects the controller, stations, and spectrometers.. Figure 30: MeasureNet network with Parallel wiring. 20 Hardware Installation

21 Daisy-Chain This wiring method should only be used to set up a temporary network, and should not be used in a permanent installation. This method works well for quickly setting up a test network, but has weaknesses that make it unacceptable for a permanent installation. In a 'daisy-chain' network, there is no backbone. Each unit is directly connected, thus removing the need for any junction boxes. It also creates a weaker network, as disconnecting a station will also disable any stations connected to it. (Figure 31). Figure 31: MeasureNet network with Daisy-Chain wiring. NOTE 21 Do not use Daisy-Chain for use in your institution's lab. This wiring method is only for testing. A permanent network with this setup will fail. Hardware Installation

Assembling the Network This chapter instructs the user in assembling and connecting all the various hardware components to form a working network.

22 Assembling the Network This chapter instructs the user in assembling and connecting all the various hardware components to form a working network. Tools listed in the Necessary Tools section are required for installation. Controller The controller is the brain of the network and therefore where the network begins. Tools Controller cable (Figure 33). Junction box (Figure 34). Setup 1) On the back of the controller, plug the controller cable into the connector pictured in (Figure 32) A. Figure 32: Back of the controller. The controller cable plugs into connector A. 2) Plug the RJ11 end into the junction box. Figure 33: The controller cable connector. The DB9 plugs into the controller and the RJ11 into the junction box. 22 Figure 34: Place the RJ11 end in the junction box. Hardware Installation

Cables The cables need to be constructed (terminated) in order to connect the remainder of the network. These connect the stations to the junction boxes. Tools Cable. RJ11 connectors.

Setup 1) Cut the cable to the desired length, in this case the length from the junction box to the station, using the single blade on the back of the crimping tool (Figure 35).

23 Cables The cables need to be constructed (terminated) in order to connect the remainder of the network. These connect the stations to the junction boxes. Tools Cable. RJ11 connectors. Cable stripper and crimper. Cable tester. Setup 1) Cut the cable to the desired length, in this case the length from the junction box to the station, using the single blade on the back of the crimping tool (Figure 35). Figure 35: The stripper/crimper tool. A is the 6P crimping slot you will use and B is the wire stripper. 2) If needed, use the blade on the back of the crimper to straighten up the cut on the wire. 3) Strip both ends of the cable ¼ of an inch by inserting the end of the cable into the dual blade section of the stripper, clamping the handle, and pulling the cable out (Figure 36). Figure 36: Stripped wire. 4) Insert the stripped cable end into a RJ11 connector, making sure that the cable is pushed in as far as possible. 5) Place the RJ11 end with the inserted wire into the appropriately sized crimper hole and squeeze the handle until the locking mechanism releases. This ensures a complete crimp (Figure 37). 23 Hardware Installation

The order of the colored wires must be the same in both ends of the cable (Figure

24 Figure 37: Crimping RJ11. 6) The same crimping process is performed on the opposite end of the cable. The order of the colored wires must be the same in both ends of the cable (Figure 38). Figure 38: Note the configuration of the wires inside both connectors. 7) Test the cable. To use the tester, plug one end of the cable into the six pin jack of the larger tester box while and plug the other end into the bottom of the smaller box (Figure 39). Figure 39: The cable tester in use. 24 Hardware Installation

25 8) Turn the tester on via the power switch on the larger test box. 9) A good cable will result in LEDs two through five on both tester boxes to simultaneously blink in ascending order. 10) A bad cable will blink two through five in reverse order. 25 Hardware Installation

26 Stations Once the cables are crafted and tested, the stations are placed in their appropriate locations around the lab. This section will use an example lab where there are twelve stations total two stations per lab bench. Refer to Figure 40 while following these instructions. Tools Terminated cables. Junction boxes. Stations. Setup 1) 2) 3) 4) 5) Position the stations within the lab as desired. Place a junction box in between the two stations. From the junction box that is connected to the controller, run a cable to the first lab bench. Plug this cable into the junction box located at the lab bench. Connect the junction box to the station. One end of the cable is placed into one of the five RJ11 connectors on the junction box while the other is inserted in the bottom of the station in the port labeled Network. 6) Hook up the second station in the same way. 7) The junction box at the lab bench should now have three network cables plugged into it: one from the controller and one from each station. 8) A new cable is now run from this junction box to the next lab bench, meaning there is a forth network cable plugged into the junction box at the first bench. 9) Installation of the remaining network follows this same pattern. 10) A spectrometer may be located anywhere on the network; the network cable leading to the spectrometer may branch from any existing junction box. For a more in depth discussion on the spectrometer, including installing a second spectrometer, visit Spectroscopy. 26 Hardware Installation

27 Figure 40: An example network with two stations per bench. 27 Hardware Installation

28 Software Installation

29 Introduction Once the network has been wired together, it is necessary to install MeasureNet software on the PC. This section covers installing the MeasureNet software and configuring the lab computer to allow the PC to communicate with the controller. It covers installation for Windows 7. If the software has already been installed and you are looking for use instructions, see the MeasureNet Software section. There are three programs that come with your MeasureNet system: 29 Lab PC software. The Lab PC software is central to the functioning of the network. The data from individual workstations are gathered and manipulated by the Lab PC software. This software has the ability to collect, save, display, and print data, as well as a variety of other tasks. The lab manager interfaces with this software and has the capability to monitor any experiment in the lab. Remote Monitor. The Remote Monitor software allows the monitoring of any experiment from any location and from any computer with this software installed. Update Manager. The Update Manager provides updates to the controller software. Software Installation

Configuring the Lab PC Before the MeasureNet Software can be installed on the lab PC, it is necessary to configure the PC to communicate with the controller. Necessary Equipment Network controller.

30 Configuring the Lab PC Before the MeasureNet Software can be installed on the lab PC, it is necessary to configure the PC to communicate with the controller. Necessary Equipment Network controller. Ethernet cable. Windows 7 computer with either two Ethernet ports or one Ethernet and one wireless port. Figure 41: The back of the controller. The Ethernet will plug into the port labeled B. Setup 1) Ensure that the PC is on and has an Internet connection. 2) Ensure the the controller is powered off. 3) Insert the Ethernet cable into the Ethernet port on the back of the controller, labeled B (Figure 41) and then into the Ethernet port on the back of the PC in the port labeled A (Figure 42). Figure 42: PC with two Ethernet ports. One will connect to the controller, while the other connects to the internet. 30 Software Installation

Configuring Windows 1) Go to the control panel (Figure 43).

3) Go to Network and Sharing Center (Figure 45).

31 Configuring Windows 1) Go to the control panel (Figure 43). Figure 43: Control Panel. 2) Make sure the control panel is in small icon view (Figure 44). Figure 44: Small icon view. 3) Go to Network and Sharing Center (Figure 45). Figure 45: Network and Sharing Center. 4) On the left, click Change Adapter Settings (Figure 46). 31 Software Installation

Figure 46: Change Adapter Settings. 5) You should see several icons for connections.

1) Unplug the cable from the computer that goes to the Internet. 2) A red X will appear under the connection that goes to the Internet. Remember this connection name (Figure 47).

6) To eliminate confusion, it is best that you change the name of your adapters to To controller and To Internet.

32 Figure 46: Change Adapter Settings. 5) You should see several icons for connections. If you connect to the Internet with a wireless connection, you can skip to the next sub section (Installing the Lab PC Software). 1) Unplug the cable from the computer that goes to the Internet. 2) A red X will appear under the connection that goes to the Internet. Remember this connection name (Figure 47). Figure 47: The X indicates that this is the Internet connection. 3) Plug your network cable back into the same port. 6) To eliminate confusion, it is best that you change the name of your adapters to To controller and To Internet. If you would prefer not to, then skip to the next sub section of instructions. 1) Right click on the connection going to the Internet and hit Rename. 2) Type in the appropriate name and hit enter. 3) Do the same for the connection going to the controller. 7) Right click on the connection that goes to the Internet and choose properties (Figure 48). Figure 48: Select properties. 8) In the dialogue that pops up, click the sharing tab (Figure 49). 32 Software Installation

.. (Figure 50) Figure 50: Check Allow other network users to connect.

33 Figure 49: Select the Sharing tab. 9) Check Allow other network users to connect through this... (Figure 50) Figure 50: Check Allow other network users to connect... 10) Click OK. 11) Start up the Unity Controller and let it boot completely before continuing. 33 Software Installation

34 Installing the Lab PC Software The lab PC software is integral to the MeasureNet system. This section walks through the installation process. Necessary Equipment Lab PC with administrative access MeasureNet software zip file Installation 1) Navigate to the folder containing the MeasureNet zipped file (Figure 52). Note that this file might have a different name such as the name of your university. Figure 51: MeasureNet zip file. 2) Right click on the file and click Extract All... Figure 52: Extract All. 3) In the pop up that opens, uncheck Show extracted files when complete and press Extract (Figure 53). 34 Software Installation

Figure 53: Extract. 4) Once the files have been extracted, there will now be a MeasureNet zip file as well as a MeasureNet folder.

In this folder, you might come across multiple directories. Each of these are for each MeasureNet lab that is present at your institution.

Inside will be a sticker which will have a name identical to one of the folders in your current directory.

35 Figure 53: Extract. 4) Once the files have been extracted, there will now be a MeasureNet zip file as well as a MeasureNet folder. Double click the folder (Figure 54). Figure 54: MeasureNet folder. 5) Double click on the Lab Software folder. In this folder, you might come across multiple directories. Each of these are for each MeasureNet lab that is present at your institution. In order to determine which network you are installing for, open the front cover on the controller. Inside will be a sticker which will have a name identical to one of the folders in your current directory. 6) After determining which network you are working with, select the corresponding folder by double clicking it (Figure 55). Figure 55: Lab Software network folder. 7) Inside this folder there are a few folders and files. The one you are interested in is labeled setup (application file). Double clickit to start the installer (Figure 56). 35 Software Installation

36 Figure 56: Setup Application file. 8) This invokes the Installer window. Click Next (Figure 57). Figure 57: Installing. 9) On the next screen press Next again (Figure 58). Figure 58: Next. 10) On the following screen press Install. This step may take some time (Figure 59). 36 Software Installation

37 Figure 59: Install. 11) Once installation has completed, press finish. The Lab Software will launch (Figure 60). Figure 60: The Lab Software is installed. 37 Software Installation

38 Installing the Remote Monitor This section walks through installing the Remote Monitor. Necessary Equipment Lab PC with administrative access MeasureNet software zip file Installation 1) 2) 3) 4) Navigate to the folder containing the MeasureNet zipfile. Right click on the file and click Extract All... In the pop up that opens, uncheck Show extracted files when complete and press Extract. Once the files have been extracted, there is now a MeasureNet zip file as well as a MeasureNet folder in the folder. Double click the MeasureNet folder. 5) Double click on the Remote Monitor folder. 6) Inside this folder there is a multitude of folders and files. select the file labeled setup (application file). Double clicking it starts the installer (Figure 61). Figure 61: Setup Application file. 7) This invokes the Installer window. Click Next (Figure 62). Figure 62: Installing. 8) On the next screen press Next again (Figure 63). 38 Software Installation

39 Figure 63: Next. 9) On the following screen press Install (Figure 64). Figure 64: Install. 10) Once installation has completed, press close. 39 Software Installation

40 Installing the Update Manager This section walks through installing the Update Manager. Necessary Equipment Lab PC with administrative access MeasureNet software zip file Installation 1) 2) 3) 4) Navigate to the folder containing the MeasureNet zipped file. Right click on the file and click Extract All... In the pop up that opens, uncheck Show extracted files when complete and press Extract. Once the files have been extracted, there is a MeasureNet zip file as well as a MeasureNet folder in the folder. Double click the MeasureNet folder. 5) Double click on the Update Manager folder. 6) Double click on the file labeled setup (application file) to start the installer (Figure 65). Figure 65: Setup Application file. 7) This invokes the Installer window. Click Next (Figure 66). Figure 66: Installation. 8) On the next screen select I Agree and click Next (Figure 76). 40 Software Installation

41 Figure 67: I Agree. Next. 9) On the following screen press Next again (Figure 68). Figure 68: Press Next once more. 10) Click next again to begin the installation (Figure 69). 41 Software Installation

$NOTE Leave the Path to PC Software Folder as is if using a 32-bit Windows. If using 64-bit, make sure the path is C:\Program Files(x86)\MeasureNet.$

42 Figure 69: Installation will begin. 11) This opens up a small window (Figure 70). In the section Controller Address, enter the controller name of the network you will be remotely monitoring. The name can be found on the inside cover on the front of the controller. If the name is 'MNET1' then the appropriate address would be 'MNET1.mshome.net'. NOTE Leave the Path to PC Software Folder as is if using a 32-bit Windows. If using 64-bit, make sure the path is C:\Program Files(x86)\MeasureNet. Figure 70: Enter the name of the controller in the 12) first field, then press OK. 13) Once installation has completed, press finish. 42 Software Installation

43 MeasureNet Software

44 The MeasureNet Software This section details the usage of the MeasureNet Software. It assumes that the software has already been properly installed and configured, as outlined in the Software Installation section. There are three unique programs provided with MeasureNet: The MeasureNet PC Software. The MeasureNet PC Software is central to the use of the MeasureNet system. It gathers and prints the data from the workstations, as well as allowing for monitoring of individual stations. It is installed and run on the PC to which the Unity Controller is connected. The lab instructor interacts with this software. The Remote Monitor. The Remote Monitor, as the name suggests, allows for the monitoring of the MeasureNet lab from a computer outfitted with the MeasureNet PC software at a remote location. The Update Manager. The Update Manager is an updater for the controller software. NOTE 44 Microsoft Excel 2007 or newer must be installed on the PC running the MeasureNet PC Software in order to run properly. MeasureNet Software

45 MeasureNet PC Software The MeasureNet PC Software must be running whenever the lab is in use. It acts as the thinking unit of the network. First Time If this is the first time you are using themeasurenet PC Software, follow this procedure to ensure appropriate use of the software. 1) Make sure that every station as well as the spectrometer is off. 2) Turn on the PC if it is off. 3) Press the power button on the controller and wait for the controller to turn on (about 90 seconds). 4) Launch the MeasureNet PC Software. To do this, double click on the desktop icon labeled MeasureNet PC Software. 5) Ensure that the controller is on by noting that the circle beside Controller in the lower left of the MeasureNet software is filled green (Figure 71). If not, make sure to closely reference the Configuring the Lab PC section above. 6) Turn on the stations. Each station should display Station is online. On the MeasureNet software, the corresponding station number circle should be filled in gray. 7) Turn on the spectrometer. The spectrometer will display *******ONLINE*******. On the MeasureNet Software, the circle beside Spectrometer in the lower left should be filled green. Lab Use In order to use the MeasureNet stations in a lab environment, the MeasureNet PC Software must be running. All functions the station does are interpreted by the MeasureNet software, including saving data sets, printing graphs, as well as allowing the instructor to monitor the progress of each station. Figure 71 provides an overview of the MeasureNet PC Software: 45 MeasureNet Software

Figure 71: The MeasureNet PC Software screen. Features 46 A. Start New Session. This button is used to initiate a new Data folder and also to log into the online web storage.

46 Figure 71: The MeasureNet PC Software screen. Features 46 A. Start New Session. This button is used to initiate a new Data folder and also to log into the online web storage. See Online Data Storage for an in depth overview of this feature. The Data folder for this section is listed below the button, along with an indicator stating whether this session is saving to the web. B. Network Status. If the MeasureNet PC Software is configured and running properly, the Controller indicator will be lit green. If Microsoft Excel is installed, the Excel indicator will be lit green. If there is a spectrometer on, the spectrometer indicator will be lit green. C. Station Status. This gives the status of each station on the network, with the indication colors listed along the bottom. You can interact with the station numbers in this section. By hovering your mouse over the station number, a pop up informs you what experiment the station is in. By clicking the station number, the station is queued in the Downloads section, described next. D. Downloads Section. This section allows interaction with downloaded data sets acquired from a station. There are three viewing options; view all sets from the current session, from the current date, or from any date. Make sure to reclick the station number after changing the 'List files from' option. E. Graph Section. This graphs the data set selected in the Downloads section to the right. Double click to select a data set to be graphed. MeasureNet Software

47 Menus Files. Open Data Files Folder. Open the current data files folder. See Data Files. Print Codes. Use this menu to view an in depth description of the various print codes available in the MeasureNet software. Controller. (Re)Initialize Communication. Used to reconnect to the controller if disconnected. Broadcast Mode. Feature allowing all stations to be controlled with a single station. Note Broadcast/Demo Operation Mode. Turn Stations Off. Turns off all stations connected to the network. Quizzes. This menu brings up options for quizzes. Note Quizzes. Monitor Station. This menu option allows monitoring any station that is monitoring or collecting data. Clicking on this menu opens up a pop up with a graph. Double click the station number within that pop up to see what that station is currently observing (Figure 72). Figure 72: The Monitor Station pop up. 47 Spectrometer. Show Calibration Constants. This displays the calibration constants of the spectrometer currently connected to the network. Change Spectrometer Configuration. This menu provides a means for changing various spectrometer settings. This is covered more in depth in the Spectroscopy section. MeasureNet Software

48 Web Data Storage. This menu has a number of submenus related to Web Data Storage. This is covered fully in the Online Data Storage section. Help. Online Documentation. This opens up the default browser with further documentation. About This Program. This menu brings up various specifications about the current MeasureNet setup, including the MeasureNet PC Software version, the controller name, and the controller software version. Open Config Files. Edit MnetConfig. This opens a text document containing critical information for the software to run properly. See MnetConfig. Data Files All of the data saved by a station are placed in a tab separated text file which can be found on the lab PC. Access these text files by going to Files Open Data Files Folder. Every save that has been made by a station is included in this directory. The file name of the data file is determined by the station which saved it and the three digit number entered by the user. For example, a student on station 4 saved an experiment of temperature versus time as 001. The file will appear in the folder as: Sta4001(.txt) Opening this file with a simple text editor such as Notepad will reveal the tab separated file with the values collected during the experiment. In this scenario, the file might look as follows: Time/s Temperature/deg C Pr. Code: 000 Const1: 0 Const2: 0... The text file may be imported by any program that can read tab separated files (e.g., Microsoft Excel). MnetConfig This file is crucial for the MeasureNet software to run properly. Access it from the menu option Help Open Config Files Edit MnetConfig. Opening this file in a simple text editor such as Notepad will reveal a document with various properties. This file is important for troubleshooting the MeasureNet software and should not be manipulated except under specific circumstances (e.g., you may be instructed to open this file by the MeasureNet tech support). 48 MeasureNet Software

Remote Monitor The MeasureNet Lab Monitor, or Remote Monitor, is a program which allows remote monitoring a lab from any desktop PC. Figure 73: The MeasureNet Remote Monitor. Features 49 Chat.

49 Remote Monitor The MeasureNet Lab Monitor, or Remote Monitor, is a program which allows remote monitoring a lab from any desktop PC. Figure 73: The MeasureNet Remote Monitor. Features 49 Chat. By clicking the name of a lab, you begin chatting with that lab. The middle of the screen becomes the chat box as seen in Figure 73. Monitor Lab. Double clicking the indicator light to the left of the lab name opens up the station status window for monitoring stations on that network The mouse pointer in Figure 73 is where to double click. MeasureNet Software

Figure 74: Remotely monitoring the network 'Adam.' 50 Monitor Station. Allows monitoring a station in much the same way the MeasureNet PC Software doe.

50 Figure 74: Remotely monitoring the network 'Adam.' 50 Monitor Station. Allows monitoring a station in much the same way the MeasureNet PC Software doe. While in the station status window (Figure 74), double clicking the status indicator light below the station number opens a dialog displaying the current data and graph. View Downloads. View data file downloads saved on the network currently being monitored. Invoke a list of downloads by either double clicking the station number, or clicking on the 'Select Station #' drop down box as seen in Figure 74. There is the option of viewing downloads from the current session, current date, or any date. MeasureNet Software

51 Update Manager The MeasureNet Update Manager is a program which updates the Controller Software. A pop up bubble will inform you when you need to upgrade the controller in the bottom right on the desktop (to the left of the clock/date). Select the most recent controller version and click Install Update to update the controller. Figure 75: The MeasureNet Update Manager. NOTE 51 There are restrictions on updates. Be sure to read the Software Details section below Available Software to determine if an update is suitable for your institution. MeasureNet Software

52 Online Data Storage

53 Introduction The Online Data Storage allows courses to be organized and accessed on the web, creating a environment where both students and instructors can save lab data and access it outside the chemistry lab. Instructors can create, delete, or modify courses, sections, students, and experiments. Students can upload their lab reports and access them at a later time allowing them to organize and interpret the data. The lab instructor can also see all of the progress each student is making. NOTE 53 If your school does not have Online Data Storage, please skip this section. MeasureNet may be contacted for more information regarding this service. Online Data Storage

54 Online Use This section is intended to be utilized by the department chair or the instructor in charge of operating the MeasureNet system. The chemistry lab manager has options for adding or deleting administrators and courses as well as manipulating options within courses. Logging in 1) Choose a computer that has an internet connection. 2) Enter into a browser. This brings up the login page for the Online Data Storage. 3) Enter the login credentials that you received from MeasureNet. Logging in will opens up the welcome page. 4) Select 'Click here to get started.' This directs to the department page (Figure 76). 5) Click your department to begin setting up courses. Figure 76: The department page. Creating a Course and Adding an Administrator A course must be created. This includes setting the course name and assigning an administrator. 1) To create a course, click 'Edit' on the left of Figure 76. 2) On the following page, click 'Add Course' on the right of Figure 77. This opens a pop up window where the course name is entered (Figure 78). 3) Press OK to submit the course and revert back to the department page. 4) To assign an administrator other than yourself, press 'Edit' again and then click 'Add Administrator.' 5) A pop up window opens where there is the option to add existing administrators or create a new administrator. All fields must be filled before submitting. 54 Online Data Storage

Figure 77: Department page preferences. Figure 78: Adding course pop up. NOTE Any administrator you add will have the same administrative privileges which you have.

55 Figure 77: Department page preferences. Figure 78: Adding course pop up. NOTE Any administrator you add will have the same administrative privileges which you have. Adding an Instructor 1) Click on course name. This directs to a page where the manipulation of instructors list, sections list, and experiments list is possible (Figure 79). 2) Click 'Edit' on the left to open a preference page where adding and deleting instructors, sections, experiments, and students is possible (Figure 80). 3) To add an instructor, click 'Add Instructor' and fill in the empty fields. Instructors have administrative rights over any preferences in a particular course and can edit any of the following preferences from this point on (Figure 81). 55 Online Data Storage

56 Figure 79: The course page. NOTE If you are the administrator of the department but also wish to be an instructor, do not add yourself as an instructor as you already have all the privileges an instructor has. Figure 80: Course page preferences. Figure 81: Adding instructor pop up. Adding an Experiment 1) Click on 'Edit' and then 'Add Experiment' (Figure 82). Make sure that the Id# is unique for each experiment in the course as it is used when preforming experiments in the lab. 56 Online Data Storage

Figure 82: Adding experiment pop up. Adding Students and Sections This section is important as it requires a text file that must be formatted properly. This text file adds both sections and students.

2) Use Microsoft Excel to create the file necessary to upload (Figure 83).

57 Figure 82: Adding experiment pop up. Adding Students and Sections This section is important as it requires a text file that must be formatted properly. This text file adds both sections and students. To alter already established sections, see Editing a Section. Add Students from file 1) Under 'Students' in Figure 80, there is the option to 'Add Students from file'. This file needs to be created. 2) Use Microsoft Excel to create the file necessary to upload (Figure 83). Open Excel and create a database taking the following form: FirstName LastName Password Section 3) These are the headers which are responsible for organizing the data. Use each column as a new field, as seen in the following figure. Ensure that the headers follow this exact formatting, i.e. FirstName has a capital F, capital N, and no space between First and Name. Figure 83: Filling in the file. 4) Once all the students are listed, save the file by clicking File in the top left and selecting 'Save As' from the drop down (Figure 84). Figure 84: Save As. 5) On the save pop up, name the file and click 'Save as type:' drop down box. Scroll until 'Text 57 Online Data Storage

58 (Tab delimited) (*.txt)' is reached and select this option (Figure 85). Click save. Figure 85: Save as type: Text (Tab deliminated) (*.txt) 6) A pop up window opens. Click 'OK'. 7) Another window pops up. Click 'Yes'. The file saves to the directory selected. 8) Note that the figure does not include any data in the Password field. This is acceptable and the Online Data Storage site will automatically generate a password for each student equivalent to the value in the FirstName column. Thus Alpha Student will have the initial login credentials as follows: Username: astudent@mail.edu Password: Alpha 9) Return to the browser and the course preferences page (Figure 80). 10) Click the 'Choose File' button and browse to the folder containing the student file list you just created. 11) Once selected, it shows up to the right of the choose file button. Submit your selection. 12) If the file was formatted correctly, observe that the sections column of the course page has been populated, as seen in Figure 86. If not, then make sure to carefully follow the instructions in this section again. Figure 86: Course with added sections and an experiment. Editing a Section 1) Click on a section to see the list of students (Figure 87). 2) Click edit to tweak the Section name as well as the student list (Figure 88). 3) To change the section name edit the 'Section Name:' field. Figure 87: The section page. 58 Online Data Storage

Add Students Individually 1) 2) 3) 4) Click 'Add Student' on the top right which opens a pop up window (Figure 89). To add a student already existing in the database, click the drop down box.

59 Add Students Individually 1) 2) 3) 4) Click 'Add Student' on the top right which opens a pop up window (Figure 89). To add a student already existing in the database, click the drop down box. There is also an option to add a new student by filling out the empty fields. Leaving the password field blank defaults the student password to the first name. Figure 88: Section page preferences. Figure 89: Add Student. Accessing Students In the section page, click on a student to view their personal details as well as access their lab reports (Figure 90). Important to note is their ID# listed just below the student's name. Students use the ID number to log into the stations during lab. This is discussed at length in Uploading Data in the Laboratory. 59 Online Data Storage

60 Figure 90: The student page. Click 'Edit Personal Information' to change the student's name, address, and password. There is also the option of deleting student files and lab reports (Figure 91). Figure 91: Student page preferences. Accessing and Uploading Lab Reports 1) In the student view page (Figure 90), there is the instruction 'To upload graded lab reports, choose "student view" and then click "edit."' 2) Click on 'student view' to open that experiment page where uploaded Data Files and Lab Report Submissions may be viewed (Figure 92). 3) Click Edit to bring up a preferences page where it is possible for the instructor to remove data files and lab reports and also upload lab reports (Figure 93). 4) To delete files, mark the boxes and press submit 5) To upload files, press Choose File on the right. From there browse and select the file. 60 Online Data Storage

61 Figure 92: Student view. Figure 93: Editing the student page. Extended Experiment Files There exists another feature in the student view titled 'Extended Experiment Files'. This feature allows setting and adjusting 'Alert Settings' for experiments where it is desirable to remotely monitor. Text message alerts are sent if the experiment breeches certain defined parameters. 1) In student view mode, click edit beside Alert Settings in order to set the desired preferences (Figure 94). 2) A pop up window opens asking for your cell phone number and the desired parameters, viz. values on the Y1 and Y2 axis. 3) If the conditions are met, the remote monitor alerts you with a text message. 61 Online Data Storage

62 Figure 94: Extended experiment preferences. 62 Online Data Storage

This saves all the data onto the Wed Data Storage server as well as on the local computer. Start New Session 1) To log into the Web Data Storage site, click Start New Session.

63 Uploading Data in the Laboratory This section is intended to be utilized by the chemistry lab manager. It details connecting to the Web Data Storage site from the MeasureNet PC software and assigning students to stations. This saves all the data onto the Wed Data Storage server as well as on the local computer. Start New Session 1) To log into the Web Data Storage site, click Start New Session. Accept the current folder. 2) The next pop up will ask Do you want to save files online during this session? Click Yes (Figure 95). Figure 95: Click Yes. 3) A log in prompt appears. This is the same log in you use for the measurenet.net site (Figure 96). Figure 96: Log in. This is the same log in you use for the website. 63 Online Data Storage

4) Once logged in, a pop up asks to select a course and section. Select the appropriate section by double clicking (Figure 97). Figure 97: Select the course and section. Double click to initiate.

6) Next it is possible to assign stations to students. Enter the station number in the blank fields under station. Click Accept (Figure 98).

64 4) Once logged in, a pop up asks to select a course and section. Select the appropriate section by double clicking (Figure 97). Figure 97: Select the course and section. Double click to initiate. 5) Another pop up ensues. Enter an experiment number at the top (in this example, 1). A legitimate experiment displays the name of that experiment to the right. 6) Next it is possible to assign stations to students. Enter the station number in the blank fields under station. Click Accept (Figure 98). 7) The students now carry out their experiments at their assigned stations. 8) If it is desired that the students log into the stations themselves, leave these fields blank. Click Cancel instead. See Student Log In. Figure 98: Assign students to stations. Student Log In 1) This section assumes that the MeasureNet software is logged in to the Web Data Storage as 64 Online Data Storage

65 2) 3) 4) 5) 6) 7) detailed in Start New Session. At the station, navigate the menu to OTHER LOG IN. Enter the experiment number (1) and press enter. Confirm the experiment by selecting CORRECT CONTINUE LOGIN. Enter your 4-digit student ID. Confirm your log in by pressing MAIN MENU. The experiment can now be carried out. Saving and Accessing Data 1) Carry out an experiment and save it as directed in the Quick Start Guide. The station display will indicate that the save file has been...saved on the PC AND uploaded to the web. 2) At any PC with internet connection, open the browser and go to measurenet.net. 3) Log in with your credentials. The welcome page is presented. Options a student has includes 'Edit My Information' and access to any experiments available from their course (in the case of Figure 99 '#1 Temp/Time'). Figure 99: Student log in welcome page. 4) Click on #1 Temp/Time to access data uploaded from the station for that experiment (Figure 100). Figure 100: Accessing data. 5) Click the data file, in this case 'Sta1008', to download and save the data text file. 6) Click uploaded lab reports in order to download and view these. 7) Click on Graph to view the data plots from the experiment. This will open in a new tab (Figure 65 Online Data Storage

66 101). Figure 101: Graph. 8) By clicking Edit the student may delete any present data sets or upload any news ones. The student may also upload and remove lab reports. Click submit to confirm the changes (Figure 102). Figure 102: Editing the data files. 9) The student may set personal alert settings while in preferences. Reference Extended Experiment Files to preform this action. 10) Click 'Home' in the top left of the page to return to the welcome page. From there the student may edit their personal information by clicking 'Edit My Information' (Figure 103). Note that their identification number can not be changed. 66 Online Data Storage

67 Figure 103: Editing personal information. 67 Online Data Storage

68 Probes

69 Introduction This section contains information and specifications concerning all of the probes associated with the MeasureNet system. The goal of this section is to ensure proper use and care of the probes as well as providing examples of navigating the station to set up experiments with the probes. A detailed overview of the spectrometer can be found in the Spectroscopy chapter. Contents Multi-Function Colorimeter Conductivity Drop Counter ph Probe Temperature Probe Temperature Probe Voltage Probe Figure 104: The drop counter, one of the probes offered by MeasureNet. 69 Probes

Multi-Function Colorimeter Figure 105: The colorimeter overhead view. A and B are where the cuvets are placed.

This section describes each of these functionalities in detail as well as the specifications of the device.

Alternative cuvets are not guaranteed to fit. When placing the cuvet into the colorimeter, it is important to insert the cuvet properly.

70 Multi-Function Colorimeter Figure 105: The colorimeter overhead view. A and B are where the cuvets are placed. The colorimeter (Figure 107) provides four functionalities: colorimetry, fluorimetry, turbidimetry, and luminescence. This section describes each of these functionalities in detail as well as the specifications of the device. Disposable cuvets fitted for the MeasureNet colorimeter can be found at Fisher Scientific (part number ) and cuvet caps (part number ). Alternative cuvets are not guaranteed to fit. When placing the cuvet into the colorimeter, it is important to insert the cuvet properly. The cuvet holder inside the colorimeter has protruding corners which will allow the cuvet to slide into the holder without the sides of the cuvet touching the edge. Make sure to place the cuvet within these protrusions. If placed correctly, the cuvet slides easily into the holder (Figure 106). Figure 106: Correct cuvet placement. The LED on top of the colorimeter, seen in the figure labeled C in Figure 105, lights up while preforming an experiment. Each color on top indicates which experiment is being carried out. Red, green, and blue for colorimetry, purple for fluorimetry, and white for turbidimetry. The LED does not display any color for a luminescence experiment. 70 Probes

71 NOTE Make sure that there are no other probes connected to the station while preforming any experiment that uses the colorimeter. Colorimetry Colorimetry emits at three wavelengths: LED COLOR Wavelength FWHM/nm Red 645 nm 15 Green 525 nm 30 Blue 470 nm 25 The Multi-function Colorimeter is dual beam, meaning two cuvets will be required to preform colorimetry correctly. One should be a solvent only reference and another the sample or solution. Fluorimetry The colorimeter uses only one beam in order to preform fluorescence measurements. The appropriate cuvet slot for fluorescence is labeled S (Fluor.) and is the right cuvet holder, labeled B in Figure 105. The fluorescent light source has a 370 nm wavelength. To calibrate, zero the device with a non-fluorescing sample such as a cuvet containing the solvent only. Turbidimetry The colorimeter uses only one beam in order to preform turbidimetry experiments. The appropriate cuvet slot for fluorescence is R (Turb.) and is the left cuvet holder, labeled A in Figure 105. The turbidity light source has an 880nm wavelength. A turbidity standard is required to calibrate the turbidimeter. Enter the turbidity value for the standard in NTU (nephelometric turbidity units). Luminescence Luminescence measurements are made using the same side of the device for fluorimetry, the side marked S (Fluor.). To calibrate, zero the device with a non-luminescent sample such as a cuvet containing the solvent only. 71 Probes

72 Figure 107: The multi-function colorimeter. 72 Probes

Conductivity Figure 108: The MeasureNet conductivity probe and amp. The MeasureNet conductivity probe (Figure 108) provides four ranges for measuring conductance of a solution.

73 Conductivity Figure 108: The MeasureNet conductivity probe and amp. The MeasureNet conductivity probe (Figure 108) provides four ranges for measuring conductance of a solution µs, µs, µs, µs. The electrode connects via a 1/8 jack to the amplifier. The conductivity probe operates at the following resolutions: Range Resolution 0-20 µs µs µs 0.01 µs µs 0.1 µs µs 1 µs Preparation for Use 1) 2) 3) 4) 73 Remove the electrode from the storage container by unscrewing the white cap. Do not remove the cap from the electrode as the rubber washer is easily lost. Connect the probe to the amplifier via the 1/8 jack. Be sure to replace the electrode in the the storage bottle after use. Probes

Measurement Procedure 1) Ensure that the conductivity probe is connected to a DB9 connector on the station and that the station is in the correct monitoring state.

74 Measurement Procedure 1) Ensure that the conductivity probe is connected to a DB9 connector on the station and that the station is in the correct monitoring state. 2) Ensure that the electrode is fully plugged into the amp. 3) Press CALIBRATE. There are two calibration options. The first utilizes the MeasureNet temperature probe for collecting the temperature data. The second allows for manual temperature entry. 4) If the first calibration option is selected make sure that the temperature probe is attached. Follow the instructions on the screen. 5) Once the temperature has been collected, the station zeros the conductivity probe. Make sure that the probe is dry. Follow the instructions on the screen. 6) The next prompt is for temperature compensation constant. 7) Finally it asks for the calibration standard value. Enter the appropriate value of the solution and press enter. 8) Put the probe into the solution and stir. At a stable reading press ENTER and DISPLAY. Operation and Care For best results, soak the conductivity probe in distilled water for at least 30 minutes before using in an experiment to prevent drift. Also rinse the probe in distilled water between each experiment. For proper care, the probe should be stored in a container filled with distilled water when not in use as in Figure 109. Do not touch the cell surface with any hard object. Figure 109: The conductivity probe stored in distilled water. 74 Probes

Drop Counter Figure 110: The MeasureNet drop counter. The MeasureNet drop counter (Figure 110) has multiple facets for particular uses. A is the counting slot where drops should be directed.

75 Drop Counter Figure 110: The MeasureNet drop counter. The MeasureNet drop counter (Figure 110) has multiple facets for particular uses. A is the counting slot where drops should be directed. This is the IR sensor which counts drops as they break the signal. The arrows indicate the appropriate path of the drop. The LED below the counting slot (the bottom right of the image) will light up when the device is registering a drop. B is the temperature probe slot. C is the electrode holder. The ph probe offered by MeasureNet fits into this slot so that the tip of the electrode sits within the beaker. The silver rod can be use to atttach the drop counter to a ring stand. There is also a white Teflon thumb screw used to secure the temp probe within the drop counter. Both can be seen in Figure Probes

Preparation for Use Figure 111: MeasureNet probes in action. Figure 111 demonstrates a possible use of the drop counter with various other MeasureNet probes.

76 Preparation for Use Figure 111: MeasureNet probes in action. Figure 111 demonstrates a possible use of the drop counter with various other MeasureNet probes. For a quick setup of the probes in this configuration, follow these steps. 1) Set up the drop counter similar to the configuration seen in Figure 111. Measurement Procedure 1) Ensure that all of the probes are correctly connected to the station and the station is in the correct monitoring state (in this case ph/mv). 2) Pressing the START/STOP key will request the initial buret reading. Enter this by using the numeric keypad. Press ENTER to submit the value. 3) This will bring up the message PRESS START TO COLLECT DATA. Press START again to begin collecting. 76 Probes

77 4) Quickly open the buret stopcock to the desired drip rate. The station is now collecting data relaying from the probes. 5) When the experiment has proceeded to the desired end, shut off the stopcock. 6) Press the START/STOP key to finish collecting data. 7) The station will display FINAL BURET READING. Enter this value using the numeric keypad. Press ENTER to submit the value. 8) Use the FILE OPTIONS menu key to save the data set. Operation and Care Note that for aqueous solutions and typical burets, the drop size is about 0.05 ml. This drop size can be held constant by keeping the drop rate in the range of 0.75 to 1.5 seconds. By ensuring a constant drop rate, you minimize the variation in each drop. Rinse the probe after use to preserve the life of the probe. 77 Probes

78 ph Probe Figure 112: The ph probe tip. The MeasureNet ph probe (Figure 112) is a refillable combination ph electrode with an internal silver/silver chloride reference electrode and a standard BNC connector. It comes with a small bottle in order to keep the tip submersed during storage. Preparation for Use 1) 2) 3) 4) Remove the electrode from the storage container by unscrewing the white cap. Do not remove the cap from the electrode as the rubber washer is easily lost. Rinse the shaft of the probe if there is a white crystalline buildup. Be sure to replace the electrode in the the storage bottle after use. Measurement Procedure 1) Ensure that the ph probe is connected to the BNC connector of the station and that the station is in the correct monitoring state. 2) Clean the the electrode stem and tip with distilled water. Carefully dab the stem and tip with a soft tissue to dry. Make sure to not rub the bulb. 3) Calibrate the electrode by pressing the CALIBRATE key. Use buffer solutions with ph values in which measurements are to made. 4) Clean the buffer solution off by repeating step 2. 5) Place the electrode in the sample solution. Stir and and record the ph reading when ready. Operation and Care Glass electrodes can fail because of scratches, deterioration, or accumulation of debris on he glass surface. Make sure to replace the electrode in the storage bottle after every use in order to maintain the life of the ph probe. Ensure that there is always solution in the storage device. The preferred storage solution is 4 M KCl. Never store the electrode in distilled water for extended periods. 78 Probes

79 Figure 113: The ph probe in storage. 79 Probes

Terminated at the end of the Tygon tubing is a metal luer fitting.

80 Pressure Probe Figure 114: The MeasureNet pressure probe with syringe. The MeasureNet pressure probe (Figure 114) comes with a variety of items which connect to the pressure probe to aid in experimentation. Terminated at the end of the Tygon tubing is a metal luer fitting. Also included is a 20 ml syringe, a 4-way stopcock with leur fittings, and a luer-to-hose barb adapter. All of these items can be seen in Figure 115. Figure 115: The pressure probe and associated components. Figure 116 shows a possible setup using the 4-way stopcock connection. The luer-to-hose barb fitting fits tubing with an inside diameter of 1/8. 80 Probes

81 Figure 116: Pressure probe with 4-way stop cock. Measurement Procedure 1) Ensure that the pressure probe is connected to a DB9 connector on the station and that the station is in the correct monitoring state. 2) Press CALIBRATE and following the instructions on the screen. If atmospheric pressure is not known, a reasonable estimate is about 750 torr. The tubing volume is about 1 ml. 3) Once calibration is complete press DISPLAY. 4) Continue with the selected experiment, such as attaching the syringe. Make sure to turn the syringe onto the luer a minimum amount of force is necessary and too much can damage the threads in the syringe fitting. Operation and Care The pressure probe measures gauge pressure the difference between prevailing atmospheric pressure and the pressure in the object connected to the probe. This is exactly analogous to an openended mercury manometer, in which the pressure in the object connected to one side differs from atmospheric pressure by the amount given by the difference in the heights of the mercury in the two sides of the manometer. All values displayed by the station are gauge pressures. The absolute pressure is found by adding the atmospheric pressure to the gauge pressure. When the probe is calibrated in an experiment, the atmospheric pressure is entered, so that absolute pressures can be determined later. All pressure values are displayed in the units of torr. The pressure probe is designed for the pressure range of 0 ± 750 torr. Exceeding this range by more than a factor of two can cause permanent damage to the sensor. 81 Probes

82 Temperature Probe Figure 117: The MeasureNet temperature probe. The MeasureNet temperature probe (Figure 117) has an internal steel body covered with a dynamic epoxy capable of resisting strong bases and acids and withstanding wear from extreme temperatures. The probe can be used for temperature measurements over the range of -50 C to +125 C. Temperature readings are collected at a precision of C. Measurement Procedure 1) Ensure that the temperature probe is connected to a DB9 connector on the station and that the station is in the correct monitoring state. 2) Calibration is accomplished by placing the temperature probe in a constant-temperature bath of known temperature (in this case a 0 C bath). Press CALIBRATE. Follow the instructions on the screen. 3) Once complete, press display and continue the experiment. Operation and Care Do not bend the the temperature probe; it could cause the epoxy to chip and damage the internals. Use caution when using the probe around heating plates. Rinse the probe after use to preserve the life of the probe. The probe has been tested in the following environments for 12 hours: 6M sulfuric acid, 6M hydrochloric acid, and 6M nitric acid. 82 Probes

Voltage Probe Figure 118: The MeasureNet voltage probe. The MeasureNet voltage probe (Figure 118) is equipped with two alligator clips for connection to DC voltage sources.

83 Voltage Probe Figure 118: The MeasureNet voltage probe. The MeasureNet voltage probe (Figure 118) is equipped with two alligator clips for connection to DC voltage sources. Measurements are restricted to ± 2.5 volts. Measurement Procedure 1) Ensure that the voltage probe is connected to a DB9 connector on the station and that the station is in the correct monitoring state. 2) To calibrate the voltage probe press CALIBRATE. Calibration is accomplished by touching the clips together and pressing ENTER. 3) Continue with your experiment. Operation and Care Exceeding the the allowable voltage range of ± 2.5 volts may damage the MeasureNet station. 83 Probes

84 Spectroscopy

Introduction The MeasureNet spectrometer is a network component which allows emission and absorption measurements in the UV-visible range (~200-850 nm).

85 Introduction The MeasureNet spectrometer is a network component which allows emission and absorption measurements in the UV-visible range (~ nm). Up to two spectrometers can be connected to one network. This section covers important information relevant to the spectrometer including how to set up both the hardware and software as well as important specifications for optimizing use of the spectrometer. Components Figure 119: The spectrometer, UV/VIS source, and fiber optic cable. 85 Spectrometer UV/VIS light source Fiber optic cable 12V power supply Light source power cable 4 UV/VIS frosted cuvets Zeroing cuvet Spectroscopy

Setup There may be two spectrometers on the MeasureNet network. If you are setting up a second spectrometer it will have a slightly different setup covered in Second Spectrometer.

86 Setup There may be two spectrometers on the MeasureNet network. If you are setting up a second spectrometer it will have a slightly different setup covered in Second Spectrometer. Figure 120: The back of the spectrometer. First Spectrometer 1) Plug the 12V power supply supplied with the spectrometer into an outlet and then into the connection labeled B in Figure ) Plug the network cable into the connector labeled C in Figure 120. This network cable should come from a junction box which is connected to the network. For reference, see the Hardware Installation section. 3) Connect the power cable for the light source from connector A (Figure 120) on the back of the spectrometer into the back of the light source (Figure 121 D). 4) Connect the fiber optic cable to the front of the light source (Figure 121 A). It plugs into connector E (Figure 120) on the back of the spectrometer. Figure 121: The light source. 86 Spectroscopy

Figure 122: A spectrometer fully set up. Second Spectrometer If there is a second spectrometer on the network, it is prepared in the same way as the first spectrometer with one exception.

As with the normal hardware installation, this connection may first go through a junction box and then be run with a normal network cable.

87 Figure 122: A spectrometer fully set up. Second Spectrometer If there is a second spectrometer on the network, it is prepared in the same way as the first spectrometer with one exception. The second spectrometer must plug into the network via the second CAN connector on the back of the controller (Figure 123 A). As with the normal hardware installation, this connection may first go through a junction box and then be run with a normal network cable. Refer to the Hardware Installation section if you need to reference how to cut and crimp wire. Figure 123: The spectrometer will plug into the CAN connector to the left of the A on the back of the controller. Specifications The spectrometer preforms light emission and absorption measurements in the nm range at an optical resolution of 1 nm. The spectrometer interprets data as a function of the element number in its diode array. The spectrometer then converts the element number to wavelength using quadratic and cubic polynomials. The quadratic polynomial is used for wavelength calculation and display at the station while the the cubic polynomial is used for wavelength calculation in saved data files. The spectrometer should not need to be recalibrated. Calibration Constants The calibration constants are unique to each spectrometer and convert the diode array element number into its respective wavelength. This section is for a brief overview and reference of where the 87 Spectroscopy

88 constants are located on the lab PC and what to expect when viewing these files. This is for reference only and should not be modified without the aid of MeasureNet personnel. The calibration constants are stored in the file SpcCalib.txt, located in the in the MeasureNet application folder. You can access it from the menu option Files Open Data Files Folder and going one directory up. There may be more than one set of constants in this file depending on the number of spectrometers in the lab. 88 Spectroscopy

89 Using the Spectrometer This section covers using spectrometer hardware, the MeasureNet software, and navigating both the station and spectrometer menus. Preparing the Station A station must be set to spectroscopy in order to utilize the spectrometer. At the station, select SPECTROSCOPY EMISSION or ABSORPTION DISPLAY. Now at the spectrometer, press STATION NUMBER and enter in the station number that is prepped for using the spectrometer. Fiber Optic Cable The fiber optic cable plugs into the back of the spectrometer into the connection labeled E seen in Figure 120. There is a shield around the end of the fiber cable which assists in connecting the cable into the appropriate slot. It should be a snug connection but not overly tight. Never bend or kink the fiber optic cable or it will suffer permanent damage. Cuvets The spectrometer kit comes with a set of cuvets for use with the spectrometer. These cuvets are different from those used with the colorimeter and should not be mixed. Be sure to cap the cuvets before placing inside the cell holder. If more cuvets or cuvet caps are needed, they can be purchased from Fisher Scientific (part number and part number ). Spectrometer Menu In the MeasureNet software, there is a a menu option for the spectrometer. In it are two sub menus: Show Calibration Constants. This displays the calibration constants of the spectrometer currently connected to the network. Change Spectrometer Configuration. This menu provides a means for changing various spectrometer settings (Figure 124). Care When not using the spectrometer, make sure to turn it off. This preserves the lamp in the light source. 89 Spectroscopy

Spectrometer Configuration As the spectrometer lamp ages, its intensity changes. In order to maintain accurate results, it is desirable to adjust the parameters.

90 Spectrometer Configuration As the spectrometer lamp ages, its intensity changes. In order to maintain accurate results, it is desirable to adjust the parameters. You can adjust separate settings for absorption and emission measurements. There is a second set of settings available for use in a different experiment. Use the second set for alternative values. To invoke the spectrometer configuration, go to menu Spectrometer Change Spectrometer Configuration (Figure 124). Figure 124: The Configure Spectrometer pop up. For best absorption measurement results, you need to adjust the Integration Time Code value. It should be common practice to periodically check the intensity value of the lamp. To test and modify the intensity value, consult the following steps. These steps assume that the network is installed and functioning and that the user is familiar with the system. Ensure that the lamp is on before making any adjustments. 1) 2) 3) 4) At a station, direct the menu to SPECTROSCOPY ABSORPTION (1). Go to the spectrometer and enter the station number. Place a cuvet filled with distilled water in the cell holder of the light source. Press INTENSITY CHECK on the spectrometer and observe the number shown on the display. The ideal value is ~3500. If the number is below 3000, or SATURATED then the Integration Time Code is too low or two high, respectively. 5) If an adjustment is necessary, return to the PC and make the appropriate change to the Integration Time Code for absorption in Set 1. Click on Accept and store the values. 6) Return to the spectrometer and press STATION NUMBER. Reenter the station number for the station. Repeat steps 4 6 until the optimum setting is achieved. 7) If you still cannot reach the desired intensity of 3500, refer to the Course Adjustment guide. Course Adjustment Use this section only if adjusting the Integration Time Code does not achieve the optimum setting. 1) Be in INTENSITY CHECK mode on the spectrometer. 2) Note where the fiber optic cable plugs into the light source. 90 Spectroscopy

91 3) There is a small adjustable screw which can be altered using the small Allen wrench provided with the spectrometer. Twist this screw in to decrease the light coming from the lamp and out to increase the light coming from the lamp (Figure 125). 4) After each adjustment, verify the intensity value on the screen. Note that this adjustment is sensitive. 5) It might be necessary to readjust the spectrometer configuration in the MeasureNet software along with the course adjustment. Figure 125: The arrow points to the adjustable screw. 91 Spectroscopy

92 Emission Measurement Adjustment The most important adjustment for emission measurements is the positioning of the optical fiber to capture an appropriate amount of light. How the optical fiber is positioned depends on the light source to be measured. For a steady source (e.g., gas discharge tube), the adjustment is straightforward. For intermittent sources (e.g., flame emissions), the adjustment can only be approximate. Here, we will walk through a case of setting up your spectrometer for steady emission. Be sure you are familiar with navigating the station as described in the Quick Start Guide section. 1) 2) 3) 4) 5) 6) 7) 8) Ensure that the spectrometer has been properly set up as described previously in Setup. Turn on the spectrometer by pressing the ON/OFF button. Be sure you know which station you are using. This guide will assume station 1. Once the station is on and you are in the main menu, navigate to Spectroscopy Emission (1) Display. At this point, the station is prepped for receiving data from the spectrometer, so position yourself at the spectrometer. For this emission experiment, hold the fiber optic cable up to a light source, e.g., the fluorescent lighting in your lab. Disconnect the fiber optic cable from the lamp and cell holder and point it at the light source. The following sequence will walk you through navigating the spectrometer menus: Action Button Press Resulting Display MeasureNet The spectrometer asks which station is collecting data. Enter your station number. This walk through assumes station 1. Enter your Station # Station Number= Sta 1 EMI Z S The top line indicates that the user set up workstation 1 for emission. Z and S refer to ZERO and SAMPLE scans to be made. 1, ENTER The number on the bottom line is the maximum intensity observed. If the intensity is more than 4095 the display will read SATURATED. INTENSITY CHECK Sta 1 EMI Z S Intensity Press Again to Exit 2846 You are now at the previous screen. The intensity should have been adjusted to as large a value as possible without saturating the diode array detector. INTENSITY CHECK Sta 1 Cover the end of the optical fiber cable before pressing ZERO. The screen will temporarily read ZERO TRANSMITTING while taking a reading. ZERO 92 Read to scan EMI Z S Read to scan Sta 1 EMI S Read to scan Spectroscopy

93 Now uncover the end of the fiber and and press SAMPLE. The screen will temporarily read SAMPLE TRANSMITTING while taking a reading. SAMPLE Sta 1 EMI 01 Read to scan 9) Return to the station. The data plot from the spectrometer will now be graphed on the display. 10) The data may now be saved by pressing FILE OPTIONS on the station. 11) The spectrometer is now ready for the next user to carry out an experiment. 93 Spectroscopy

94 Absorption Measurement Adjustment In order to obtain valid absorption spectra it is essential to properly adjust the parameters for absorption measurements. In particular the Integration Time Code must be carefully chosen. The value for the Number to Average has an effect on the signal-to-noise ratio in the absorption spectrum. Absorbance is not a quantity that can be measured directly but instead is calculated from measured intensities of the light passing through the cell and through the reference cell: Absorbance log10(reference Intensity/Sample Intensity) The following example will make use of the shared diode array spectrometer. Be sure you are familiar with navigating the station as described in the Quick Start section of this manual. 1) Ensure that the spectrometer has been properly set up as is described previously in this section. 2) Turn on the spectrometer by pressing the ON/OFF button. 3) Be sure you know which station you are using. This guide will assume station 1. 4) Once the station is on and the you are in the main menu, navigate to Spectroscopy ABSORPTION (1) Display. 5) At this point, the station is prepped for receiving data from the spectrometer, so position yourself at the spectrometer. 6) Ensure that the fiber optic cable is connected to both the lamp and the spectrometer. 7) For absorption experiments, you will need a Sample cuvet containing the solution and a Reference cuvet containing the solvent. 8) The following sequence will walk you through navigating the spectrometer menus: Action Button Press MeasureNet The spectrometer asks which station is collecting data. Enter your station number. This walk through assumes station 1. Enter your Station # Station Number= The top line indicates that the user set up workstation 1 from absorption. Z, R, and S refer to ZERO, REFERENCE, and SAMPLE scans to be made. 1, ENTER Using the zeroing cuvet provided, place it into the lamp holder and press ZERO. The spectrometer screen will go through the following sequences. ZERO Note that the Z disappears. This means that the zeroing step has been carried out and the reference and sample steps still remain. 94 Resulting Display Sta 1 ABS Z R S R S Read to scan Sta 1 ABS ********ZERO******** Sta 1 ABS R S ********ZERO******** ****TRANSMITTING**** Spectroscopy

95 Sta 1 Use the letters on the top line to serve as a reminder of the scan order. Pressing SAMPLE before REFERENCE will produce an error which will require you to restart the scan. ABS R S Read to scan Now replace the zeroing cuvet with the reference cuvet. Press REFERENCE. The screen will go through the same sequence, this time reading REF TRANSMITTING. REFERENCE This time replace the reference with the sample cuvet. The screen will proceed through the same sequence, reading SAMPLE TRANSMITTING. SAMPLE Sta 1 ABS S Read to scan Sta 1 ABS 01 Read to scan 9) Return to the station. The data plot from the spectrometer will now be graphed on the display. 10) The data may now be saved by pressing FILE OPTIONS on the station. 11) The spectrometer is now ready for the next user to carry out an experiment. 95 Spectroscopy

96 Quick Start Guide

97 Introduction This section provides a step-by-step example for using the MeasureNet station. The form of this section is a walk through which explains the keystrokes to navigate the station and the resulting display. This goal of this section is to familiarize yourself with utilizing and interacting with the MeasureNet station. Sample Manipulation The example provided here is Temperature versus Time. The goal of this sample is to provide a walk through exemplifying the navigation of the MeasureNet station. It covers selecting the appropriate experiment, calibrating the probe, collecting data, and saving the data set on the lab PC. It requires that you have the MeasureNet temperature probe. This guide assumes that the network is properly set up and that the controller is on, the lab PC is on, and that the MeasureNet software is running. It also assumes that the station being used is station 1. Please refer to the appropriate section if you are still installing and setting up your MeasureNet laboratory. Make sure that the temperature probe is plugged into one of the DB9 sockets on the station before proceeding. Temperature versus Time Action Button Press Resulting Display Turns on the station. ON/OFF For a list of options Press Main Menu Key Station is online Brings you to the main menu. MAIN MENU F1 F2 F3 F4 F5 F6 F7 VOLTAGE STATION TEMPERATURE ph/mv PRESSURE SPECTROSCOPY COLORIMETRY/FLUOR./TURB./LUM. OTHER Selects temperature. F2 F1 F2 F3 F4 TEMP v TIME PRESSURE & TEMPERATURE TEMP v VOLUME Dual TEMP v TIME Use Adapter 97 #1 Quick Start Guide

98 Select temperature versus time. F1 YOU CHOSE TEMPERATURE..SELECT OPTION.. SETUP CALIBRATE DISPLAY MAIN MENU Calibrate temperature probe. CALIBRATE set graphing limits calibrate probe go to measurement window select measurement type ENTER TEMPERATURE OF CONSTANT TEMPERATURE BATH IN DEGREES CELCIUS THEN PRESS ENTER. _ Use a 0 C bath. Remember that the probe is being calibrated, thus the temperature presented may not be the temperature that you entered. 0, ENTER Once you have a steady value, press ENTER. ENTER Now you specify axes limits to be used in plotting the data on the screen. SETUP New acquisition. F1 98 PUT PROBE IN CONSTANT TEMP BATH. WHEN VALUE STOPS CHANGING PRESS ENTER (VALUE MAY NOT BE ACTUAL BATH TEMP)..SELECT SETUP CALIBRATE DISPLAY MAIN MENU OPTION.. set graphing limits calibrate probe go to measurement window select measurement type F1 SET LIMITS FOR NEW ACQUISITION F2 SET LIMITS TO REPLOT CURRENT DATA Y max * 100.0* Y min 0.0 X max X min 0.0 C SET MAXIMUM TEMPERATURE ON GRAPH to *highlight* limit DISPLAY to accept values Quick Start Guide

99 Here you set the maximum temperature to 30 C and move the *highlight* to X max. 3, 0, ENTER,, Y max Y min 0.0 X max * 500.0* X min 0.0 seconds SET MAXIMUM TEMPERATURE ON GRAPH to *highlight* limit DISPLAY to accept values Set the maximum time to 60 seconds. 6, 0, ENTER Y max Y min 0.0 X max * 500.0* X min 0.0 seconds SET MAXIMUM TEMPERATURE ON GRAPH to *highlight* limit DISPLAY to accept values Takes you to a presentation of the experiment. Left is current data and elapsed time. Center is the Y axes limits. Right is the graph. No data will be plotted until you press START/STOP. DISPLAY Starts collecting data and graphing it on the rightmost box. Notice that the time begins counting. START/STOP temp( C) time(sec) 0.0 temp( C)..... time(sec) When time expires, the station beeps and the screen no longer updates. You may also press START/STOP to manually stop the experiment File options appears in the left box. 0 temp( C) time(sec) 60.0 FILE OPTIONS F1 PRINT standard F2 PRINT custom F3 SAVE F4 CANCEL Quick Start Guide

100 Select save. F3 ENTER FILE NUMBER (3 digits) _ Enter a 3 digit number to save your data. The station notifies you when the data set has been saved. 2, 2, 5, ENTER Sta1225.txt saved on PC. To continue, press DISPLAY. To redisplay data before continuing, press SETUP F2 DISPLAY. At this point you have successfully preformed the experiment and saved the data. From here appropriate actions include pressing DISPLAY to return to the temperature verses time experiment or pressing MAIN MENU to return to the main menu where you can select a new experiment. This sample experiment is a good example of navigating the MeasureNet station. Most other experiments closely follow this sample. It is important that the user reads the information on the display and preforms the instructed keystrokes as with the example above in order to ensure that the experiment is conducted correctly. To see more step by step examples using both the station and spectrometer, see Emission Measurement Adjustment and Absorption Measurement Adjustment. 100 Quick Start Guide

101 Troubleshooting

102 Introduction This section is a compilation of commonly observed issues that users may encounter and their remedies. Refer to it when you have an error that does not lend itself to repair. If this section fails to resolve a particular error, contact MeasureNet. MeasureNet Software/Controller Errors Condition Controller offline (indicator light is blank) Possible Solutions Controller is off. Turn the controller on and restart the MeasureNet software. Ensure that the Ethernet cable is securely connected to both the controller and the PC. The controller name is incorrect in the MnetConfig.txt. Refer to the MnetConfig section of the manual. Press F1. If there is no IP address, restart controller. Ensure that the startup sequence is MeasureNet software followed by controller. MeasureNet Station Errors Condition Station is offline Possible Solutions Controller is off. The controller must be on for the stations to function. Ensure that the network cable is securely plugged into the back of the station. Incorrect station number. Check the back/underside of the station. Make sure that the DIP switch configuration is correct for that station. Refer to the Setting the Station Number section of this guide. Duplicate station. Garbled display There are two or more stations on the network that have the same IP address. Refer to the Setting the Station Number section and ensure that each station as a unique number. Extraneous data Ensure that the probe is properly attached. Duplicate station. PC UNAVAILABLE status 4 ************************* NO DATA STORED PLEASE SELECT ANOTHER FUNCTION This occurs when the station attempts to save data but the MeasureNet software is not running. Start the MeasureNet software on the lab PC. The FILE OPTIONS button was pressed when no data had been collected. ************************* 102 Troubleshooting

103 Spectrometer Errors Condition Spectrometer is offline Possible Solutions Controller is off. The controller must be on for the spectrometer to function. Ensure that the network cable is securely plugged into the back of the spectrometer. Incorrect station number. Check the back/underside of the station. Make sure that the DIP switch configuration is correct for that station. Refer to the Setting the Station Number section of this guide. Sta # *Not Ready* Set up your station ***Sequence Error*** 103 The station has not been prepped for communicating with the controller. See the Using the Spectrometer section of this guide. Occurs when the user tries to preform the reference, zero, sample sequence out of order. Be sure to follow the letter indicator along the top of the spectrometer display. Note the sample Absorption Measurement Adjustment section. Troubleshooting

104 Appendices

105 Broadcast/Demo Operation Mode Broadcast mode enables a network of stations to be controlled by a single unit. In broadcast mode, all stations display the actions of one chosen station. Enter Broadcast Mode 1) Turn on any the stations in the lab. 2) To enter broadcast mode, the lab instructor must enable it in the MeasureNet software via the menu Controller Broadcast Mode Enable. 3) Once the mode has been enabled via the menu, select a station to broadcast. 4) At the station, navigate the menu to select and initiate broadcast mode: OTHER BROADCAST. The screen will read YOU ARE IN CHARGE and instructs you to PRESS MAIN MENU. 5) At this point, every station on the network is now mimicking the broadcasting station. Each action preformed on the lead station is reflected on the rest of the network. Exit Broadcast Mode In order to leave broadcast mode, all stations involved must be turned off and back on. Back at the MeasureNet software, disable broadcast mode by menu Controller Broadcast Mode Disable. 105 Appendices

Quizzes The quiz feature allows the students to take a quiz while positioned at the station. This quiz is created using the MeasureNet software.

106 Quizzes The quiz feature allows the students to take a quiz while positioned at the station. This quiz is created using the MeasureNet software. Multi choice and numerical values are the only answer types supported by the quiz. Creating the Quiz 1) In the MeasureNet software, go to the menu Quizzes Create a Quiz Key. A pop up opens (Figure 126). Figure 126: The create quiz pop up. 2) 3) 4) 5) 6) Enter in a three digit quiz number. Specify how many questions there are in this quiz. Select a question. The quiz feature allows multiple choice and numerical value type questions. Select one. If you choose multiple choice, specify which answer is correct and out of how many possible choices. Note that correct answers are numerical rather than alphabetic. 7) If you choose numerical value, specify the correct answer and allowable deviation. Note that scientific notation is not supported at the station. 8) Save the question. 9) Continue selecting questions and filling in the data until all questions have been saved. 106 Appendices

10) Once all of the questions are completed, a Save the Quiz Key File prompt appears. Save the quiz and close the pop up box. The quiz is now ready to be carried out by the students at the station.

107 10) Once all of the questions are completed, a Save the Quiz Key File prompt appears. Save the quiz and close the pop up box. The quiz is now ready to be carried out by the students at the station. 11) Quiz keys are saved in your current data files files folder. Entering Responses 1) At the station, navigate the menu to quiz: OTHER QUIZ. 2) Enter personal ID. It is recommended that this ID is the same as the ID given in the section Online Data Storage. If not, IDs will need to be assigned to students before the quiz. Press ENTER. 3) Enter quiz number. This is the three digit number entered while creating the quiz. In Figure 126 this number is 101. Press ENTER. 4) The screen begins prompting for responses. The student enters the appropriate response using the numeric keypad and then pressing ENTER to submit the answer. 5) This initiates the station to ask the next question. The student continues to answer in the same manner. 6) Once the student answers all of the questions (5 in quiz 101), the station will continue prompting further questions. Disregard answering further and instead press FILE OPTIONS SAVE. Do not enter a 3 digit file number but instead press ENTER. 7) The screen displays the quiz score immediately to the students. Viewing Responses 1) In the MeasureNet software, go to the menu Quizzes View Results. A pop up opens (Figure 127). Figure 127: The quiz results pop up. 107 Appendices

Cmpt 101 Lab 1 - Outline

Cmpt 101 Lab 1 - Outline Instructions: Work through this outline completely once directed to by your Lab Instructor and fill in the Lab 1 Worksheet as indicated. Contents PART 1: GETTING STARTED... 2 PART