User's Manual

DIGITAL CONTROL INCORPORATED
DigiTrak Falcon
™
F5

Operator’s Manual 33
Flags and Pins, Offset and Deviation
Left/Right Offset
On the DataLog menu, L/R Offset lets you specify a given horizontal distance you intend to
maintain from a feature beside the bore path, such as curb, guardrail, or surveyed path. Think
of this as a "running waypoint" that is recorded as long as the offset is in effect.
In the image above, the offset is a "right" offset, meaning the intended bore path is to the right
of the sidewalk feature.
Deviation
Also on the DataLog menu, Deviation lets you mark how far the drill head is deviating from
the intended bore path. If an offset is in effect, it is how far the drill head is deviating from the
offset.
Each time you log a rod at the Locate screen (hold trigger, toggle right), this feature lets you
also record your current deviation from the bore path. For example, if you know you are
supposed to be a certain distance from a guardrail but locate the drill head at a slightly farther
distance, or are following a surveyed path and locate the drill head slightly to one side of the
path, enter the difference as a left or right deviation.
Set pin marking
fire hydrant
Marked
gas line
Fire
hydrant
Sidewalk
Right offset
Intended
bore path
Actual bore
path
Right deviation
Set flag
marking gas
line crossing
Right pin
distance