User's Manual

Locating
36 Vermeer
®
DigiTrak
®
L
T
™
Operator’s Manual
Locating the Transmitter – Standard Method
With the LT system, you can locate the transmitter and its heading while it moves, whether standing in
front of it, behind it, or toward the side. You can also locate the transmitter facing either toward or away
from the drill rig.
The standard method described in this section guides you to the transmitter while standing out in front of
it, facing the drill rig. This is the recommended method for locating. As you continue to drill or as the bore
path curves, you may be facing the last marked locate point rather than the drill rig.
Drill
LL
FLP
RLP
Move
Forward
Drill
LL
FLP
RLP
Move
Forward
Setup for Standard Locating Method Standard Locating Method
with a Curved Path
You do not hold the trigger in to view the signal strength when using the standard method. If you want to
view the signal strength (with its associated plus/minus symbols) while locating, please refer to the next
subsection entitled “Plus/Minus (“+/–“) Locating Method.”
The first position to find is the front locate point or FLP. The FLP gives you the transmitter heading. The
FLP’s distance ahead of the transmitter is dependent upon the transmitter depth and pitch; the deeper it
is, the further in front the FLP will be. The FLP is represented as a target (
) on the receiver display.
Once you have found the FLP, then you will find the LL, where you can determine the depth of the
transmitter. The LL is represented by a short line (
) on the receiver display. The receiver must be held
parallel to the transmitter when over the drill head to obtain an accurate depth reading.
Then you will find the RLP, where you can confirm the transmitter heading and position. Like the FLP, the
RLP is represented as a target (
) on the receiver display.