Setup:
Mount the Rotary Motion Sensor on the rod stand (see Figure 3).
Attach the Angle Indicator as in figure 3.
Put the pulley on the Rotary Motion Sensor with the largest step outward. Attach the rod to the Rotary Motion Sensor pulley and put the two 75 g masses on the end of the rod.
Plug the Rotary Motion Sensor into a PasPort input on the 850 Universal Interface.
Adjust the Adjustable Angle Clamp for an initial angle of 0.
With the pendulum at rest, click open Hardware Setup at the left of the screen. In the bottom right of the Hardware Setup panel, click the Gear icon. De-select Zero Sensor Measurement at Start by clicking on the checkmark. Click on the Remove Sensor Zero Offset button. Then click on the Zero Sensor Now button. Click OK. Click Hardware Setup to close the panel.