measurements, where you start each traverse from opposite ends, or ‘Parallel’ measurements,
where each traverse is started from one side of the grid. Selecting ‘Push’ or ‘Pull’ will allow the
software to determine the correct X and Y position of each sensor depending on whether the cart
is being pulled or pushed.
Pressing ‘OK’ will open up the Grid Window, shown in figure 25.
Figure 25: Grid Window
The graph in the Grid Window will display the readings from the Grad-13 sensors as they are
collected.
8.3.2. Connecting Grad-13 Gradiometers
Before beginning the survey the Grad-13s need to be connected. To do this, select the ‘Connect’
button and a window will be displayed listing any connections that have already been set up, and
whether they are connected or disconnected, see figure 26.
Figure 26: Connection Window
