There are several interfaces available for comunication with the Nor150. You have to decide which interface to use and set it up correctly.

More information on the interfaces:
LAN interface
RS232 interface

Additionally there are a number of digital IO lines that can be used to control the measurements or show important measurement information.
Digital IO

Norsonic supplies a lot of different software packages for acoustical measurements, and also software that transfers the measurement results to PC.