Publicidad
Measuring Depth (Line Tracing Modes)
The SR-60 calculates Measured Depth by comparing the strength
of the signal at the lower antenna to that at the upper antenna.
Measured Depth is measured correctly in an undistorted field
when the bottom antenna is touching the ground directly above
the signal source and the antenna mast is vertical.
1.
To measure depth, place the locator on the ground, directly
above the Sonde or the line.
2.
Measured Depth will be shown in the lower left hand
corner.
3.
Measured Depth will be accurate only if the signal is undis-
torted and the antenna mast is held vertical.
Testing for the consistency of the Measured Depth reading can
be done by raising the SR-60 a known distance (say, 12 inches
(33 cm)) and observing whether the Measured Depth indicator
increases by the same amount. Small variation is acceptable, but
if the Measured Depth does not change, or changes drastically,
it is an indication of a "distorted" field, or very low current on the
line.
Push-Button Depth
Holding the Select Key will display a short count-down followed
by a calculated depth report. This "Push-button Depth", calcu-
lated on more signal samples, will be more precise than the run-
ning Depth indication.
Push-button Depth will generate a brief count-down screen fol-
lowed by a calculation screen, which changes to a depth report
screen when the calculation is complete.
Figure 24: Push-Button Depth Report
Depth Warnings
Note: Exposing the utility is the only way to verify its exist-
ence, location, and depth.
Certain conditions make depth readings less precise or less relia-
ble. When using Pushbutton Depth, a warning will appear when
these conditions occur:
Motion of the SR-60 during
sampling.
Depth is varying greatly.
Signal Strength is varying
greatly.
Extreme offset between guid-
ance line and tracing line (right
or left).
Clipping (Signal too high).
Averaged depth will be
inaccurate.
Distortion level too high to read
depth accurately.
Ridge Tool Company
SeekTech SR-60
17
Publicidad
