The Tracker | Nivel menu has these commands. You can also find these commands on the Tracker Nivel toolbar:
Start Tilt Readout - Starts an X, Y tilt readout to bring the tracker into the working range of the Nivel by adjusting the Tracker base foot screws.
Start Level to Gravity Process - PC-DMIS uses the Nivel 20/230 device to create a gravity plane and then automatically create a coordinate system based on the gravity plane information. Once it completes the process, the monitoring process starts automatically.
Start/Stop Monitoring - Starts or stops monitoring independent of the Level to Gravity process.