Measurement Computing USB-2404-UI - Manual (Page 9)

USB-2404-UI User's Guide Installing the USB-2404-UI
9
Be sure you are using the latest system software
Before you install your USB-2404-UI, run Windows Update to update your operating system with the latest
USB drivers.
To connect the USB-2404-UI to your system, turn your computer on, and connect the USB cable to a USB port
on your computer or to an external USB hub that is connected to your computer. The USB cable provides power
and communication to the USB-2404-UI.
USB 2.0 port or hub recommended
For optimum performance, connect the USB-2404-UI to a USB 2.0 Hi-Speed host controller (480 Mbps) and
USB 2.0 high-speed hub. The USB-2404-UI can be connected to a USB 1.1 Full-Speed port or hub, although
performance may be affected.
To connect a USB-2404-UI device to your system, turn on your computer and connect the USB cable to an
available USB port on the computer or to an external USB hub connected to the computer. Connect the other
end of the USB cable to the USB connector on the device. No external power is required.
When you connect the device for the first time to a computer running Windows, a Found New Hardware dialog
opens when the operating system detects the device. The dialog closes after the device is installed.
The green LED on the USB-2404-UI blinks steadily to indicate that the device is initialized and receiving
power.
Allow the USB-2404-UI to operate for at least 30 minutes before using the device. This warm up time is
required to achieve the specified rated accuracy of measurements.
Caution! Do not disconnect any device from the USB bus while the computer is communicating with the
USB-2404-UI, or you may lose data and/or your ability to communicate with the device.
If the LED is off
If the LED is on but then turns off, the computer has lost communication with the USB-2404-UI device. To
restore communication, disconnect the USB cable from the computer and then reconnect it. This should restore
communication, and the LED should turn on.
Calibrating the USB-2404-UI
The USB-2404-UI is shipped fully calibrated. Calibration coefficients are stored in EEPROM. Return the
device to Measurement Computing Corporation when calibration is required. The normal calibration interval is
once per year.