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MicroLite & MicroLab Lite User Guide First Edition December 2008 © Omega Engineering Inc.
Table of Contents INTRODUCTION 1 CHAPTER 1 2 USING THE MICROLITE 1.1. Overview 2 1.2. Getting Started 2 1.3. Reading the MicroLite Display 1.3.1. Data Displays 2 3 1.4. MicroLite Working Modes 4 1.5. USB Port Connection 4 1.6. The MicroLite Battery 1.6.1. Battery Level 1.6.2. Replacing the Battery 1.6.3. Using the MicroLite Magnet 5 5 5 6 CHAPTER 2 7 2.1. MICROLAB LITE MicroLab Lite Software Overview 2.2. Software Installation 2.2.1. System Requirements 2.2.2.
2.5.2. 2.5.3. 2.5.4. 2.5.5. 2.5.6. 2.5.7. 2.5.8. 2.5.9. 2.5.10. 2.5.11. 2.5.12. The Cursor Graph Features Cropping the Data Formatting the Graph Displaying Alarm Levels Changing the Temperature Units Adding Annotations to the Graph Exporting Data to Excel Export File Settings Copying the Graph as a Picture Viewing more than one Data Set on the Graph 15 16 17 17 17 17 17 18 18 18 18 2.6. Analysis Tools 2.6.1. Setting the Analysis Tools Parameters 2.6.2. Histogram 2.6.3. Pasteurization 2.6.4.
Introduction The MicroLite is a compact 16-bit USB data logger designed for accurate temperature monitoring for a wide range of applications. Due to its low cost, the MicroLite can be used as a One Trip Logger, for monitoring temperature of perishable goods during transportation, for example. Other typical applications include warehousing of food, monitoring of controlled environments i.e. in the pharmaceutical industry, and many more.
Chapter 1 Using the MicroLite 1.1. Overview The MicroLite can be used as a standalone device to monitor temperature levels. The MicroLite LCD screen continuously displays the current temperature recordings and the maximum and minimum temperature readings. You can also define minimum and maximum alarm levels for a specific data logging session, and the LCD screen will also show any alarm levels that may have been breached as well as the duration of the alarm.
1.3.1. Data Displays The LCD displays the data in a continuous cycle, alternating in duration according to the order shown in the table below: Time on Screen (seconds) 8 Data Reading 2 Temperature (in Celsius or Fahrenheit) Low alarm duration * 2 High alarm duration * 2 Minimum temperature reading Maximum temperature reading Low battery warning * 2 2 Example of Reading on Screen 25.5 ˚C AL-L 1.55H AL-H 1.05H MIN 23.2 ˚C MAX 30.
Minimum and Maximum Temperature Readings The logger display automatically scrolls through the Min/Max temperature readings while sampling. These readings are simply the minimum and maximum temperature values recorded by the MicroLite up until that point. If your logger has breached an alarm level, look at the MIN and MAX readings to see the extent of the low or high alarm level breach. These readings are constantly updated. 1.4.
MicroLite LCD Status when Connected to USB The USB connection status is always displayed on the MicroLite LCD when connected or disconnected from a USB port. The LCD flashes USB ON once when connected and flashes USB OFF once when disconnected from the USB port. The logger LED (located adjacent to the logger’s USB connector) also lights up green when connected to the USB port.
Figure 2: Closing battery compartment Note: Be sure to place the rubber protector properly back in its place, to maintain the MicroLite’s dust and waterproof IP68 compliancy. As stated previously, replacing the battery will lose the MicroLite’s time/date settings. These can be restored the next time you Setup the logger using MicroLab Lite. After replacing the battery, the MicroLite LCD will display PUSH, indicating it is in Push to Run mode.
Chapter 2 MicroLab Lite 2.1. MicroLab Lite Software Overview The MicroLab Lite software was designed to allow for the programming of the desired data recording specifications for MicroLite, to enable the downloading of recorded data to a PC, and to store, view and analyze the data. The Logger menu handles all communication between the PC and MicroLite, such as programming the desired recording mode, starting or stopping data recording, as well as downloading the data.
5. When the following dialog pops up, click Install. 6. The installation of the driver could take up to one minute or more, depending on the system. 7. Once installed, click Finish to close the USB driver Install Wizard dialog. 8. The main MicroLab Lite InstallShield Wizard now resumes.
9. After a few more seconds, the installation process is completed. Click Finish. 10. Connect the MicroLite to a USB port on your PC. The PC will automatically detect the MicroLite as new hardware. After a few seconds you will see a message stating that the device is ready for use. 11. Double click the MicroLab Lite shortcut on your desktop to launch the software. If the MicroLite is connected to the PC the software will automatically detect it.
The dialog box consists of two main sections: • MicroLite info Comment Click the text box and type a name that will serve to identify the specific MicroLite (e.g. its location). S/N Displays the MicroLite’s serial number. Battery Level Shows the current status of the MicroLite battery. If the indicator is in the red zone the battery should be replaced. MicroLite firmware version Displays the firmware version and the memory capacity, either 8K (8,000) or 16K (16,000) samples.
operate in this mode. If the check box is unselected, MicroLite will operate in Normal run mode and will stop recording when the memory is full. Push to run In Push to run mode, the MicroLite will only start recording data when you use the MicroLite magnet to close the reed relay on the MicroLite’s circuit board, thereby causing the logger to start recording data. This is convenient for when you wish to start recording data soon (but not immediately) following setup, or at an unspecified time. 2.3.2.
2. 3. 4. 5. Click Change Password to open the Change Password dialog box. Enter the current password in the Current Password field. Enter the new password in the New Password field. Enter the new password a second time in the Confirm New Password field to confirm your new password. 6. Click OK. Note: The password must include at least 4 characters and is case sensitive. Temperature Calibration 1. Connect the MicroLite to the PC. 2. Click Logger on the main menu, and then click Calibration. 3.
Figure 6: Communication Setup dialog box The selected COM ports are available for communication. 1. Click Try to connect to establish communication. 2. Click Work offline to work with saved files and no logger detection is required. Note: You can speed up the MicroLite detection process by only selecting the COM which is being used by the MicroLite. 2.3.7. Downloading Data 1. Connect MicroLite to the PC. 2. Open the MicroLab Lite software. on the main toolbar. 3.
If you’ve downloaded data from more than one MicroLite and you want to save all the data sets, select Save all from the File menu. Note: If you want to remove unwanted data before saving, apply the Crop tool (refer to page 17). 2.4. 2.4.1. MicroLab Lite Basics Opening Files 1. Click Open on the main toolbar. 2. To open a file that was saved in a different folder, select a drive and/or folder in the Look in dialog box. 3. Double-click the file you want to open. 2.4.2.
Graph Click Graph to display or remove the graph. The graph displays the data sets plotted vs. time. In order to keep the graph clear and simple, only two Y-axes can be shown on the graph simultaneously. If there are three curves in the graph, one of the Y-axes will be hidden. To make this axis visible, select the corresponding plot with the cursor (refer to page 15). You can identify the Y-axis by its color, which matches the plot color. Table Click Table to display or remove the table.
2.5.3. Zooming Graph Features Click Zoom in on the graph toolbar and drag the cursor diagonally to select the area you want to magnify. Release the mouse button to zoom in to the selected area. Click on the Zoom in button a second time to turn off the Zoom tool. Autoscale Click Autoscale on the graph toolbar for the full data display. Double-click on an individual axis to auto scale it separately. Manual scaling 1. Click Graph properties on the graph toolbar to open the Graph Properties dialog box. 2.
Panning Use the pan tool after zooming any part of the graph that is outside the zoomed area. To do so, click Pan on the graph toolbar, then click anywhere on the graph and drag the graph to view another area. Click Pan a second time to turn off the Pan tool. 2.5.4. Cropping the Data Cropping enables you to trim the edges of a data set. Use it to remove unwanted data. 1. Zoom to the data range you want to keep. 2. Click Graph on the menu bar, and then click Crop.
To move an annotation: 1. Click Move annotation on the graph toolbar 2. Drag the annotation to any location on the graph you choose. 3. Click Move annotation a second time. To edit an annotation: 1. Place the cursor on the point to which the annotation is attached. 2. Click Graph on the menu bar. 3. Click Edit annotation. 4. Edit the annotation in the text box. 5. Click OK. To delete an annotation: 1. Place the cursor on the point to which the annotation is attached. 2. Click Graph on the menu bar. 3.
There are two modes when using the Multi-graph feature: Standard mode The time scale of all data on the graph is the same. The time and date of data recorded in the first data set included on the graph is used. For example, if you have a graph whose data was recorded starting 10:00AM on August 11, then all additional data added to the graph will be displayed with the same recording date.
2.6.2. Histogram Use this tool to create a frequency distribution of the selected data set. To create a histogram: 1. Use the cursor to select a plot on the graph. 2. Click Analysis on the main menu bar, and then click Histogram. MicroLab Lite displays a histogram of the selected data and creates a new entry in the Data Map. Use the Data Map (refer to page 15) to hide the histogram or to return to the original data sets. You can modify the histogram to your needs.
To hide the statistics, click Statistics 2.7. a second time. Toolbar Buttons 2.7.1.
Pan Activates the pan tool Autoscale Returns the graph to full view Graph properties Opens the Graph Properties dialog box Cursor Toggles the first cursor Second cursor Toggles the second cursor 22
MicroLite Specifications MicroLite Hardware Models: OM-MICROLITE-8 - Temperature sensor; 8,000 sample memory OM-MICROLITE-16 - Temperature sensor; 16,000 sample memory Internal Temperature sensor: Range: -40 ˚C to 80 ˚C Resolution: A/D resolution: 16-bit, 0.1°C Accuracy (all ranges): 0.3 ˚C Response time: ~ 20 minutes (Thermal conductor enabling fast response time) Software calibration is possible Outputs: 3-digit 7-segment LCD with decimal point USB 2.
Standards: Water and dust proof IP68 standard compliance (0.
Appendix: Figures FIGURE 1: MICROLITE BATTERY COMPARTMENT FIGURE 2: CLOSING BATTERY COMPARTMENT FIGURE 3: MICROLITE MAGNET HOLDER FIGURE 4: LOGGER SETUP DIALOG BOX FIGURE 5: CALIBRATION DIALOG BOX FIGURE 6: COMMUNICATION SETUP DIALOG BOX FIGURE 7: MICROLITE DATA TABLE FIGURE 8: FUNCTIONS PARAMETERS FIGURE 9: HISTOGRAM SETTINGS 25 5 6 6 9 12 13 19 19 20
WARRANTY/DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product. If the unit malfunctions, it must be returned to the factory for evaluation.
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