Connect desired sensors to LabPro.
Connect LabPro to the cable from the USB port on the computer.
Open LoggerPro from the desktop.
When the Connect to LabPro window opens, select Connection Port: LabPro-USB and click OK.
Configure Logger Pro for your experiment. Use one of the following options.
Auto-ID Sensors: With auto-ID sensors, such as the stainless steel thermometer, the Logger Pro software will identify your sensor when you start up.
Sensor Dialog: Clicking the LabPro box shows your sensor information, the units, and current readings. By clicking the Auto-ID All Channels button, Logger Pro will identify the sensors connected to your LabPro. If your sensor is not auto-ID, you can simply drag the sensor to the appropriate channel and drop it.
Probes & Sensors Experiment Files: Choose Open from the file menu, then Probes & Sensors. This file contains a folder for each of the Vernier sensors. Open a file with the sensor you want and your system will be configured for this sensor.
Vernier Lab Book Experiment Files: Choose Open from the file menu, then Chemistry with Computers. Choose the experiment file that corresponds to your experiment and open it. Your system will be configured to the appropriate sensor.
Set data collection mode from one of the following choices by going to Experiment, Data Collection on the Toolbar.
Time Based: This is the method you will most commonly use. The data is collected as a function of time. Parameters that can be set include Length (length of time for data collection), and Sampling rate (data points per minute or per second). This method is appropriate for kinetics experiments.
Events With Entry: This method is appropriate for titrations with a pH electrode and certain types of spectroscopy experiments. A data point is recorded whenever the Keep button is clicked (e.g. pH) and the experimenter enters values in a second column (e.g. volume of titrant).
Selected Events: A data point is recorded whenever the Keep button is clicked.
Digital Events: You can set data collection to run continuously (until the Stop button is clicked) or at a pre-determined number of events.
Collect data.
When ready to run your experiment, click the Collect button and Logger Pro will begin plotting data in the graph window.
To stop data collection early, click on the Stop button.
To add time, choose Extend Collection from the Experiment menu.
Store data.
The run labeled "Latest" always contains the most recently collected data and is overwritten when you collect more data. To prevent loss of data choose the Save As or the Store Latest Run option.
To save data permanently so data will be preserved between sessions or when you turn off your computer, selectSave As from the File menu.
The Store Latest Run option in the Experiment menu saves the most recently collected data in memory, allowing you to do another collection without losing the first one. This option does not save data on disk nor preserve it between sessions. It is a good option to use if you are running consecutive experiments and wish to plot both on the same graph. Alternatively, you can open a saved experiment, use the Store Latest Run option, and plot new data on saved graph.
Manage your page and data; customize your presentation.
Moving objects: Select the object by clicking on it once. Move the cursor over the edge of the selected object until the cursor turns into a hand, then hold down the mouse button while grabbing and moving the object.
Resizing objects: Single-click on an object to select it. When an object is selected, its border becomes visible, along with eight resizing handles. Clicking and dragging a resize handle will resize the object in the appropriate direction.
Graph axes: Customize your graph by changing the columns that are displayed by positioning the mouse over the X-axis or Y-axis, clicking, and selecting the data you wish assigned to each axis.
Graph options: Double-click on the graph or select Graph Options from the Options menu to call up the Graph Options dialog box. This allows you to change the graph object appearance, adjust scaling, and select which columns are plotted.
Analyze your data with appropriate functions from the Analyze menu or the Toolbar. Some of the more commonly used functions include:
Examine: This function shows the x- and y-values of the data point closest to the mouse pointer.
Statistics: This function calculates the minimum, maximum, mean, and standard deviation of selected data. To select data, highlight the desired data by holding the left mouse button down and passing it over the desired data in the table or on the graph.
Linear Fit: This function performs a linear regression on selected data and reports slope, intercept, and correlation. Standard deviations and significant figure options are also available by double-clicking on the results box.
Curve Fit: This function fits a user-defined function over the selected data.
Print your graphs and data.
Arrange the objects on the screen as you want them to appear on the paper.
Select Print from the File menu or click the Print button on the toolbar. You can print the graphs and data tables individually by selecting Print Data Table or Print Graph from the File menu.