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Installation of Dracal Instruments on Windows 7

Two problems arise when using our instruments on Windows 7, especially when the VCP mode is required:

  1. The driver downloaded with DracalView doesn’t allow USB recognition.
  2. Microsoft doesn’t have a native driver for VCP.

One solution to both issues is installing one application and following this procedure.

Application needed: Zadig https://zadig.akeo.ie

Procedure

    1. Plug in your Dracal instrument.

  • 2. Launch Zadig.
  • 3. Select the instrument, probably named “Unknown device.” Ensure you select the appropriate USB device by verifying that the “USB ID” is 289B and 050x, where ‘x’ can range from 0 to 9. If your device is not listed, ensure “List all devices” is activated under the “Options” menu.

If you select “Edit, " you can change the instrument name to your preferred one (for example, VCP-PTH450-CAL).

    4. Pick “WinUSB” and click on “Install Driver.”

  • 5. Try to open DracalView to make sure the USB driver is installed correctly.

    6. In Dracal Tools (Command Prompt)

Type:

C:\Program Files (x86)\DracalView>  dracal-usb-set -s E16026 set_protocol VCP

C:\Program Files (x86)\DracalView>  dracal-usb-set -s E16026 reset

Where the -s argument is followed by your instrument's unique serial number, which can be found on the instrument's back label.

    7. Back in Zadig, there should be a new unknown instrument.

  • 8. Redo the procedure with the “USB ID” 289B and 060x, where ‘x’ can range from 0 to 9. Pick “USB Serial (CDC)” and click on “Install Driver.”