NuFlo USB Adapter Installation

The NuFlo™ USB communications port allows a user to configure and download data from a MC-III to a computer using a standard USB connection. The USB adapter software supplied on the MC-III installation CD shipped with every MC-III must be installed to support USB communications.

This document guides the user through the installation process (see Part I – Install the Driver, and Part II – Run the “Found New Hardware” Wizard) and explains how to connect to the MC-III using the USB adapter and the MC-III interface software (see Part III – Connect to the MC-III). Part II is required for Windows XP users only.

When the USB adapter is pre-installed at the factory, no additional field wiring is required. However, a USB adapter may be purchased as a kit for installation in a previously acquired MC-III. See the NuFlo™ USB Adapter Kit Installation Guide for instructions on installation and wiring. (A printed installation guide is shipped with all USB adapter kits, and an electronic version of the guide is available on the USB installation CD supplied with the kit.)

Equipment Required

To install the USB adapter driver and software, the following items are required:

Part I—Install the Driver

IMPORTANT: Do not connect the USB adapter to a computer or to a MC-III until instructed to do so. Only the MC-III installation CD is required for Part I of the installation procedure.

  1. Insert the MC-III installation CD in the CD-ROM drive of your computer and click the “Install Device Driver” shortcut button below.

    1. Windows Vista/7/8 Users

      Start Windows Explorer, browse the CD drive (or where setup files were unzipped) for the install file (.exe).

      For 64-bit systems, look for:
      Install\PrimaryVolumePath\NuFlo\MC-III X.X.X\NuFlo USB Driver\NuFloUSBAdapterInstaller_x64.exe

      For 32-bit systems, look for:
      Install\PrimaryVolumePath\NuFlo\MC-III X.X.X\NuFlo USB Driver\NuFloUSBAdapterInstaller_x86.exe

      Right click the .exe file and select 'Run as Administrator' to begin installation.

      Go to step 3.

    2. Windows XP Users (Internet Explorer Required)

      Click the appropriate “Install Device Driver” shortcut button below. If you are unsure of which driver to install refer to this link: http://support.microsoft.com/kb/827218

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    3. Windows XP Users (Other Browsers)

      Start Windows Explorer, browse the CD drive (or where setup files were unzipped) for the install file (.exe).

      For 64-bit systems, look for:
      Install\PrimaryVolumePath\NuFlo\MC-III X.X.X\NuFlo USB Driver\NuFloUSBAdapterInstaller_x64.exe

      For 32-bit systems, look for:
      Install\PrimaryVolumePath\NuFlo\MC-III X.X.X\NuFlo USB Driver\NuFloUSBAdapterInstaller_x86.exe

      Double-click the .exe file to begin installation.

      Go to step 3.


  2. A File Download dialog will appear. Click “Run.”

  1. At the “publisher could not be verified” prompt, click “Run” again.

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  1. Note the default installation location. If you wish to change the location, click “Change Install Location…” and map a new location. Click “Install.” The application will search your operating system to determine which drivers to install.

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  2. If running the application on Windows XP, a Software Installation dialog box will appear. Click “Continue Anyway” to complete the installation.

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  1. A final “Success” window will confirm the installation of the USB driver.

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Part II—Run the “Found New Hardware” Wizard (Windows XP users only)

  1. Connect the USB adapter to the laptop using a universal serial bus USB A/B cable (user supplied). A Found New Hardware pop-up window will appear momentarily at the bottom of the computer screen, and the Found New Hardware Wizard dialog will appear.

    Click “Yes, this time only.” Then click Next.

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  1. Click “Install the software automatically (Recommended).” Then click Next.

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  1. Windows will search for software for the USB adapter.

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  1. When the Hardware Installation warning dialog appears, click “Continue Anyway” to proceed.

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  1. Windows will automatically install the NuFlo USB software using files supplied on the CD.

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  1. Click "Finish" to close the installation confirmation screen.

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Part III—Connect to the MC-III

IMPORTANT: Before attempting a USB connection, verify that the MC-III software is installed on the computer to be connected to the MC-III and verify that the USB adapter is properly wired to the RS-485 port on the MC-III circuit board.

  1. Connect the USB A/B cable to the USB Communications Port of the MC-III. (The other end should be connected to the computer on which MC-III software is installed.)
  2. Start MC-III interface software.
  3. Select the Options menu near the top of the Welcome screen, and click “Select COM Port...”

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  4. Select the "NuFlo USB Adapter" port selection and click “OK”.

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    Note: If the MC-III software installed on your computer is version 2.0.1 or older, the text “NuFlo USB Adapter” will not appear. However, the USB port will appear, typically as the last selection in the list of available serial ports.
  1. Click the scrolling MC-III display window on the Welcome screen or open the File menu and click Express Connect to initiate a connection to the MC-III.

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