Digitrex 3-3000-00a-F Fine Tuning Rnlp Location Walking Toward Left, Plus Changes To Minus Drill

Locating ®

2.To determine the lateral and therefore the actual location of the RNLP, turn toward the left so that the receiver is perpendicular (90°) to the drill string and move the receiver forward. Again, move the receiver slightly forward and backward until pinpointing the location where the “+/–” signs flip from one to the other.

Fine Tuning the

RNLP Location

(Walking Toward Left)

PLL

Plus

Changes

to Minus

Drill

Finding the Positive Locate Line (PLL)

3.At the RNLP, face away from the drill with the trigger held in and walk toward the transmitter. The signal strength should increase. Watch for the “–” sign to change to a “+” sign. Once this occurs, move the receiver slightly forward and backward and find the spot where the “+/–” signs flip from one to the other. This location is the PLL along which the transmitter is located. Mark this spot as a line across the drill string, representing the transmitter’s positive locate line.

Minus

Changes

to Plus

	PLL
Surface of	Drill
Ground

Transmitter

Finding the Positive Locate Line (PLL) from the Drill

46 DigiTrak® Mark III Operator’s Manual