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OM-USB-5201 User's Guide
Functional Details
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External power required for data logging
Due to processing limitations, data logging is not allowed when the OM-USB-5201 is attached to an active USB
bus. The OM-USB-5201 must be connected to the standalone power supply to perform data logging.
External power supply
The external power supply is used to power the OM-USB-5201 during data logging operations. This power
supply is a 2.5 W USB power adapter.
Disconnecting the OM-USB-5201 from the computer
You don't need to shut down your computer to disconnect the OM-USB-5201. Refer to the instructions below
when disconnecting the OM-USB-5201 from your computer's USB port.
When running Windows XP, use the Unplug or Eject icon on the computer's taskbar to safely stop the OM-
USB-5201 before you unplug the device. To do this, right-click on the icon, select the OM-USB-5201 and click
Stop
. Windows will notify you when it is safe to disconnect the device from your computer.
When running Windows 2000, the Unplug or Eject icon does not appear in the taskbar when the OM-USB-5201
is connected to the USB port. Do not disconnect the OM-USB-5201 from the computer when the device's LED
is flashing (transferring data), or data may be lost. When you disconnect the device, an Unsafe Removal of
Device warning may appear. However, no data is lost on the device when you remove the OM-USB-5201 when
the LED is steady green. This information applies to all OM-USB-5201 devices, regardless of the firmware
version installed.
Transferring binary data after a logging session
Data is stored on the memory card in binary files. After logging measurements, you can transfer the files to your
computer by reconnecting the OM-USB-5201 to a USB port on your computer or by removing the
CompactFlash card from the OM-USB-5201 and using a card reader connected to your computer.
Note that when installed with firmware version 3 and later the OM-USB-5201 appears as a Mass Storage
Device when connected to a USB port on your computer, so you can copy files using Windows Explorer.
Converting binary data after a logging session
If your OM-USB-5201 is connected to a USB port on your computer, you can use InstaCal or TracerDAQ to
convert the files on the CompactFlash card to .CSV format for use in Microsoft Excel files, or to .TXT format
for use in other applications.
If you transferred binary files to your computer hard drive or removed the CompactFlash card from your OM-
USB-5201 and are using a card reader connected to your computer, use TracerDAQ to import the files and save
them as .CSV or .TXT format. InstaCal can only convert files when the CompactFlash card is in a OM-USB-
5201 connected to your computer.
Summary of Contents for OM-USB-5201
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