Sensors & Software LMX100, Руководство пользователя

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Data Collection
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Figure 6-13: Adjusting Soil Cal while in backup mode
On the other hand, if you press Soil Cal while you are collecting data or have pressed
Pause, you will see a red hyperbola in the middle of the screen. Drag the hyperbola
such that the cross hairs are at the top of a real hyperbola from the ground (Figure 6-14).
You can use the 4-way keypad arrows to fine tune the movements.
Figure 6-14: Pressing Soil Cal display red hyperbola (Left). Then move the hyperbola so that it lies over a hyperbola
from the ground and adjust the shape (Right)
For either scenario above, once the red hyperbola is properly positioned, you can now
use the
+ and
–
buttons on the Soil Cal button to widen or tighten the shape. Once the
shape is matched (Figure 6-13 and right image of Figure 6-14), you now have the
correct Soil Cal and the measured depths will be most accurate. Press
Apply to use
this value.
If you get a Soil Cal near 300, this could be an Air Wave ( Section 5.5), and you should
calibrate to a different hyperbolic response.