Install the drivers for your IR probe onto your computer and then connect the probe to the computer via the probe's USB or serial port.
Click on the "Start" button in your taskbar. Type "Device Manager" into the search box and then click on the link to the Device Manager when it appears in the menu.
Expand the "Ports" heading in the Device Manager. Locate your IR probe beneath the heading and take note of the COM port that is assigned to the device. Exit the Device Manager.
Launch the probe's software on your computer. Open the "Settings" or "Configuration" menu. Set the software's "COM" menu box to the port number that your computer assigned to the probe.
Connect your probe to the optical port on your smart meter to generate a reading of your power on the probe's software.