Ocean Optics MultiFrequency Phase Fluorometer - Manual (Page 21)

Chapter 3
Configuration
Overview
Once the software has been installed, the system has been rebooted, and the hardware has been connected
to the computer, you must configure the software.
Note
You must start the Tau Theta application software before starting OOISensors. If you attempt to
start OOISensors without the Tau Theta application running in the background, you’ll receive an
an error message stating that the DDE host could not be found. If multiple MFPF units are
connected to your computer on different USB ports, each unit requires its own copy of the Tau
Theta host program running in the background.
Configuring Tau Theta Software
You must identify the COM port given to the MFPF unit and set MFPF unit parameters using the Tau
Theta host program before using the MFPF unit(s) with OOISensors.
Configuring the COM Port
The MFPF unit uses a USB connection with an emulated RS232 port. When the MFPF is connected to the
computer, it is given a COM port number. Before you are permitted to start the software, you are asked to
identify the COM port number given to the emulated RS232/USB port.
► Procedure
To select the COM port for the emulated RS232/USB port,
1. Click the Windows Start icon.
2. Select Control Panel | System to display the System Properties window.
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