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Related Manuals for Fields at Work ExpoM-ELF
Summary of Contents for Fields at Work ExpoM-ELF
- Page 1 ExpoM - ELF User Manual Version 1.1...
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Page 2: Table Of Contents
Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz ExpoM - ELF User Manual Contents 1 Description ..........................4 2 Case and Interfaces ........................4 Overview .......................... 4 Multi-color LED ........................ 5 3 Using ExpoM - ELF ........................6 Starting a Measurement ....................6 Setting a Marker ....................... - Page 3 Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz 5.4.1 Raw Measurement File (.mmm file) ..................11 5.4.2 Export Timeline (to Excel or CSV) / GPS track (KML) ..............11 5.4.3 Export a Single Spectrum / Time Domain Recording ..............11 Application Settings .......................
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Page 4: Description
A micro USB interface (4), a charging indicator LED (5) and the ON/OFF switch (6) are located on the lower side of the case. Important Note: ExpoM-ELF is delivered with a protective rubber cover on the Micro-USB receptacle. It is recommended to always put the cover on the USB interface when no cable is plugged in. This prevents unintentional electrostatic discharges (ESD) from disturbing ongoing measurements and minimizes wear and tear of the contacts. -
Page 5: Multi-Color Led
Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz 2.2 Multi-color LED Status information about the operation of the device is given via the multi-color LED. The following table shows an overview about the color code and its corresponding behavior. -
Page 6: Using Expom - Elf
Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz 3 Using ExpoM - ELF 3.1 Starting a Measurement As soon as the device is turned on by means of the ON/OFF switch it starts to measure and log the data using the last device settings. The device can be turned on and off at any time. When ExpoM - ELF is powered on, the new measurements are appended to the existing log file preserving all previously recorded data. -
Page 7: Battery Management
Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz 4 Battery management 4.1 Charging the Battery The USB interface is used to recharge the internal battery or power the device from an external power source. Unless fully charged, the battery is recharged as soon as the device is connected to a powered USB source (Wall adapter, PC, laptop etc.). -
Page 8: Expom - Elf Utility (Pc Software)
Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz 5 ExpoM - ELF Utility (PC Software) 5.1 General Information The ExpoM - ELF Utility software is required for transferring and displaying the measurement data from the ExpoM - ELF to a PC and for changing the various device settings. This software requires a Windows operating system (Windows 7 and newer). -
Page 9: Measurement Data Section (2)
Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz 5.2.2 Measurement Data Section (2) This section is used to manage the measurement data. It allows to download or clear the memory content of a connected device. The currently displayed measurement can also be saved to a raw file to be loaded and viewed later without a connected device. -
Page 10: Single Measurement Analysis: Settings And Export (8)
Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz settings. Any change in the timeline settings, including the FFT windowing option, requires the timeline to be updated (Compute Timeline) for the changes to be visible. 5.2.8 Single Measurement Analysis: Settings and Export (8) These settings control the appearance of the single measurement plot. -
Page 11: Saving And Loading Measurement Data
Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz Figure 3: Connecting to ExpoM - ELF When the correct COM port is selected, the connection to ExpoM - ELF can be established with a click on the Connect button. Please wait for the ExpoM - ELF device to finish the initialization process (this is signalized by a color sequence of the multi-color LED) before attempting to establish a connection. -
Page 12: Application Settings
Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz 5.5 Application Settings The application settings allow to customize the list of frequencies displayed in the timeline and the corresponding color. These settings are stored locally and automatically when ExpoM - ELF Utility is started. -
Page 13: Firmware Update
Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz The Data Logger options allow to choose which of the bands shall be measured during automatic data logging. The selected bands are all measured one after another within the selected measurement interval. Please note that the minimum recommended measurement interval is higher when more than one band is selected (see 6.6). -
Page 14: Data Format (Timeline Export)
Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz Figure 6: Firmware update procedure 5.7 Data Format (Timeline Export) The software allows to save the measurement data as Excel (.xlsx) and CSV. The organization and information content of the two files is the same for both file formats. -
Page 15: Gps Data
Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz 5.7.6 GPS Data The recorded GPS data consists of the following 7 parameters: invalid: no valid GPS data available GPS fix 2D: 2D only (no accurate altitude information) 3D: full GPS localization... -
Page 16: Technical Specifications
Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz 6 Technical Specifications 6.1 Frequency Bands and Measurement Range Detection method Time-domain sampling (4096 samples) with digital processing and filtering Sensors Tree axis TMR sensor; Hall sensors Measurement interval User-selectable; from 4 seconds to 6000 seconds in steps of 0.25 second 6.2 Bandwidth and Resolution... - Page 17 Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz Figure 8: Typical noise floor: MF band (DC – 10 kHz) Figure 9: Typical noise floor: HF band (DC – 100 kHz) Figure 10: Typical noise floor: High-B band (DC – 1 kHz)
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Page 18: Accuracy And Drift
Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz 6.4 Accuracy and Drift Temperature Drift Basic Accuracy Typical DC Offset Band Axis Crosstalk 25°C ±10°C 25°C ±10°C °C °C to +50 ± 3% ± 5 μT < 30 dB °C Sensitivity: 0.1% /... -
Page 19: Battery Management
Fields at Work GmbH, Sonneggstrasse 60, 8006 Zürich, Schweiz 6.8 Battery Management Battery Built-in rechargeable Li-ion battery Typical operating time > 24h (10 sec measurement interval, GPS disabled) Micro-USB interface Charging USB compliant chargers are supported (≥ 1.5A recommended) A full charge takes about 2 h.
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