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Bartington DG-1 Operation Manual

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OM4448/1
Operation Manual for
DG-1
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Summary of Contents for Bartington DG-1

  • Page 1 OM4448/1 Operation Manual for DG-1 24-bit Digitiser bartington.com...

  • Page 2: Table Of Contents

    List of Figures 1. About this Manual 1.1. Symbols Glossary 2. Safe Use 3. Important Points to Note Before Using DG-1 3.1. Compatible Sensors 3.2. Install the Software Before Connecting the USB Cable 3.4. Accidental Disconnection of the USB Cable 4.

  • Page 3: List Of Figures

    Page 3 of 16 OM4448/1 List of Figures Figure 1: The DG-1 connected to a magnetometer and an accelerometer Figure 2: DG-1 front panel...

  • Page 4: About This Manual

    This document describes the installation, operation and maintenance of the DG-1 from Bartington Instruments. It should be read in conjunction with the product brochure (DS4549) which can be found found on the product page of the Bartington Instruments at: bartington. com. DG-1 software can be downloaded from the software page of the website.

  • Page 5: Safe Use

    DG-1 uses FTDI USB drivers, and these will be installed alongside VisualDG-1. 3.4. Accidental Disconnection of the USB Cable Note: Disconnection of the USB cable whilst the DG-1 is operating may cause the DG-1 to malfunction. Should this occur, stop the PC program, reconnect the USB cable, wait 15...

  • Page 6: Introduction To

    The DG-1 is software controlled with connection to the user’s PC via a USB interface. Prior to data acquisition, the DG-1 is configured using the DG-1 software. A typical arrangement is shown in Figure 1.

  • Page 7: Coupling

    The DG-1 unit contains power supply, amplifiers, filters, three simultaneously triggered 24-bit A/D converters and a USB interface. The DG-1 is powered from the USB port of the users PC/ Laptop, and the DG-1 then supplies power to the users magnetometer.

  • Page 8: Status Led

    Page 8 of 16 OM4448/1 5.1. Status LED The RED status LED will illuminate once the DG-1 is plugged into a USB port. This confirms that the unit has power. 6. Software The DG-1 is supplied complete with dedicated data acquisition software. Consult Bartington Instruments for the minimum hardware requirements and installation instructions.
  • Page 9 The software will inform the user if there are any DG-1s connected to the PC (bottom left of application window. Next, press “Digitiser”, then “Connect”. A window will appear that will automatically detect the DG-1, or multiple DG-1s, connected to the PC. Select the appropriate serial number from the drop-down menu and press OK.

  • Page 10: Selecting A Device (Magnetometer)

    A message may appear, reminding the user to select a “device” before attempting to perform any scans. Press OK. The DG-1 is now connected to the software, and a device can now be selected. Note: If VisualDG-1 is closed down and re-opened, the DG-1 will need to be reconnected using the above proce 8.2.
  • Page 11 OM4448/1 VisualDG-1 cannot automatically detect the magnetometer connected to the DG-1. First, select the magnetometer you have connected to the DG-1. For example, a Mag-03. VisualDG-1 will automatically select the correct voltage “Range” and enable “Aux Power”. The FSD must be selected depending on the measuring range of your magnetometer in nanoTeslas (nT).

  • Page 12: Scanning

    Page 12 of 16 OM4448/1 Once the device and FSD have been selected, press OK. VisualDG-1 is now configured for measurements using default values. Note: If VisualDG-1 is closed down and re-opened, the software will remember the last device settings used.

  • Page 13: Custom Scan Settings

    Page 13 of 16 OM4448/1 The default location for scan data is C:\DG1. To stop the scan, press the black square or press “Scan”, then “Stop”. 8.4. Custom Scan Settings VisualDG-1 has a number of custom scan settings that can be accessed under “Tools”, “Options”.

  • Page 14: Data Storage Location

    Throttle does not apply to the data that is recorded. 8.4.3 Sum Count The DG-1 has a fixed sample rate of 32kHz, per channel (X, Y and Z). 3 ADCs individually handle X, Y and Z respectively. The “Sum Count” controls the averaging of the magnetic field data, and the data output rate as follows: For example, with the Sum Count set to 1, the data output rate will be 32kHz.

  • Page 15: Low Pass Filter

    Page 15 of 16 OM4448/1 8.4.4 Low Pass Filter The DG-1 contains an FIR digital low pass filter with a selectable 5kHz, 3kHz, and 1kHz corner frequency. Press “Enable Low Pass Filter” and select the corner frequency required. 9. Troubleshooting The system works reliably but bad data can be collected if the USB interface is interrupted or initially connected when the DG-1 unit is not switched ON.
  • Page 16 ®The copyright of this document is the property of Bartington Instruments Ltd. Bartington is a registered trademark of Bartington Instruments Limited in the following countries: Australia, Brazil, Canada, China, European Union, India, Israel, Japan, Mexico, New Zealand, Norway, Russia, Singapore, South Korea, Switzerland, Turkey, United Kingdom, United States of America and Vietnam.

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