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Summary of Contents for Excelitas Technologies MLT-1000
- Page 1 MLT-1000 Multiple Loop Tester MLT-1000 User Manual Document Revision A...
- Page 2 MLT-1000 User Manual Disclaimer Disclaimer Excel Technology Co Pty Ltd reserves the right to make changes to the technology described in this document without notice and advises its clients to obtain the latest version of the relevant information prior to placing an order. Excel Technology Co Pty Ltd warrants its products to the specification detailed...
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Page 3: Table Of Contents
Table of Contents Disclaimer ................................i Overview .............................. 3 1.1 Terminology ............................ 3 1.2 Physical Layout .......................... 4 1.3 Usage .............................. 5 1.3.1 Connecting to the MLT-1000 ..................... 5 1.3.2 Scanning Using the MLT-1000 .................... 6 1.3.3 Configuring Data ........................ 8 1.3.4 Removing Outlier Data (Optional) ..................... 8 1.3.5 Exporting Data ........................... 9 1.3.6 Saving Raw Frequency Data .................... 1 0 1.3.7... -
Page 4: Overview
MLT-1000 User Manual Overview Overview The Excel Technology Co MLT-1000 is a portable field service device for in-pavement loop analysis. It is capable of measuring loop inductance, DC series resistance, Q performance factor and loop resonant frequency for a group of up to eight in-pavement loops. It can also detect open and short circuit conditions. The MLT-1000 is based on Excel Technology Co’s LTM-100 basic loop tester. The MLT-1000 includes additional switching circuitry that allows up to eight in pavement loops to be measured simultaneously. The... -
Page 5: Physical Layout
MLT-1000 User Manual Overview Physical Layout Figure 1.0: a) Top face, b) side face c) Loop end face d) PC end face. Figure 1.1: IDC connector pin layout. Excel Technology Co Page... -
Page 6: Usage
MLT-1000 User Manual Overview The MLT-1000 has a micro-USB connector (Figure 1.0 d)) for connecting to a PC and an IDC16-latched connector (Figure 1.1). The MLT-1000 comes supplied with a 16-way twisted pair flat ribbon cable that interfaces with the IDC16 connector and is used to connect up to eight loop feeder cable pairs to the device via a loop termination panel (Figure 1.2). The MLT-1000 has provision for adapter boards which allow the device to be used with other companies’ loop products. Figure 1.2: Excel Technology Loop Termination Panel. Usage 1.3.1... -
Page 7: Scanning Using The Mlt-1000
MLT-1000 User Manual Overview Figure 1.3: Selecting the appropriate COM port. 1.3.2 Scanning Using the MLT-1000 Before performing a scan the site name, site location, detector type and detector manufacturer can be entered. This metadata will be included when exporting the loop data to the report. Figure 1.4: Scan description dialogue box. Once the desired loops are connected to the device, to initiate a scan, click the Scan Loops button. The user will be prompted to enter a scan description (Figure 1.4) then a five second scan of all connected loops will begin (Figure 1.5). Any empty loop channels will read Open Circuit. Excel Technology Co Page... - Page 8 MLT-1000 User Manual Overview Figure 1.5: MLT Interface during a scan. Figure 1.6: MLT Software Interface. The MLT-1000 rapidly switches between all eight channels and measures frequency and resistance sequentially. The status LED will flash each time all eight channels have been scanned. This process is repeated 30 times per second for five seconds. Figure 1.6 shows the output after a single scan. Excel Technology Co Page...
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Page 9: Configuring Data
MLT-1000 User Manual Overview 1.3.3 Configuring Data If any data should not be included in the exported report, the "Include" checkboxes can be used to select whether or not it should be included. To discard an entire scan, the checkbox next to the scan name can be deselected. To exclude single data rows, use the checkbox on each row (see Figure 1.7). Figure 1.7: MLT software scan output. Each loop can optionally include a description. To add a description, click the empty box in the "Loop Description" column and enter a value. Press the "Enter" key or click out of the box in order to save the value. This value will then be exported along with the full report. This may be used to add identifying... -
Page 10: Exporting Data
MLT-1000 User Manual Overview Figure 1.8: Scan outlier selection. To do this, select the loop that requires manual filtering, then click the View Raw Data button at the bottom of the table containing the data. The greyed out data (highlighted red in Figure 1.8) shows where the software has automatically filtered out outliers. The user can include or exclude additional data points using the checkboxes (highlighted blue in Figure 1.8). 1.3.5 Exporting Data To save the scan results to a report, click the Save To Report button. The report is generated as a comma separated value (CSV) file and can be viewed with any text or spreadsheet editor. The user will be prompted to choose a location to save the file and a filename. Select a save location and file name and click... -
Page 11: Saving Raw Frequency Data
MLT-1000 User Manual Overview Figure 1.9: An example of the generated CSV report. 1.3.6 Saving Raw Frequency Data As an optional feature, it is possible to save the raw frequency data from a scan to assist in the diagnosis of faulty loops. To save the raw frequency data for a scan, click the Save Frequency To CSV button for the desired scan. The user will be prompted to choose a location to save the file and a filename. Select a save location and file name and click Save. The frequency file only stores frequency data for a single scan. To save data for multiple frequency scans, each file must be saved separately. The data saved in this file is only... -
Page 12: Quick Start Steps
The real-time data view is for viewing data only, so data cannot be saved. In order to get a snapshot of data, perform a scan instead. 1.3.8 Quick Start Steps 1. Firmly connect one end of the 16 way flat ribbon cable to the loop termination panel with the other end connected to the MLT-1000. 2. Plug the micro-USB cable into the MLT-1000 and connect it to a PC USB port. The red Power LED will illuminate, indicating that the device is powered. 3. Open the Multiple Loop Tester Interface and select the device from the list of serial ports (press Refresh if the device is not visible). Click Connect and the green Status LED should flash three times, indicating that the device is connected to the PC. 4. Click Scan Loops to initiate a scan. After entering any useful/relevant information about the scan, the device will scan all connected loops (ten times per second for five seconds).
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