18Click [OK] in the [Communication Port Settings] window to close it.*If Auto Find does not detect a communication port, please see [Help] in the[Communication Port Settings] window.3. Base Unit RegistrationAny unit, RTR-71 or RTR-72, can be registered as a Base UnitConnect the Thermo Recorder unit to your computer that is to be registeredas the Base Unit.In the [Registration] Menu, select [Base Unit Registration]Enter a name for the Base Unit.Click [Start Registration] and the registration process will begin. Whencompleted the following window will appear, click [OK].