User's Manual
Table Of Contents
- Mark III Directional Drilling Locating System
- Table of Contents
- Table of Contents (Cont.)
- Table of Contents (Cont.)
- Safety Precautions and Warnings
- Safety Precautions and Warnings (Continued)
- Dear Customer:
- 3-3000-00b-F.pdf
- 3-3000-00c-F.pdf
- Receiver
- Display Window Icons
- On/Off
- Receiving the Transmitter’s Signals
- Clicking vs. Holding the Trigger
- Changing the Receiver’s Channel Setting
- Changing the Depth Measurement Units (English vs. Metric)
- Battery Status Display for Receiver and Transmitter
- Warning Tones for Transmitter Overheat
- Ultrasonic Function
- Calibrating the Receiver
- Using Depth Antenna Plumb Line to Mark Locate Points
- Finding Firmware Version
- 5.0 Series Firmware Functions
- Receiver
- 3-3000-00d-F.pdf
- 3-3000-00e-F.pdf
- 3-3000-00f-F.pdf
- 3-3000-00g-F.pdf
- 3-3000-00h-F.pdf
- 3-3000-00i-F.pdf
- 3-3000-00j-F.pdf
- Locating
- Locating Mode
- Locate Points (FNLP & RNLP) and Locate Line (PLL)
- Handling the Receiver
- Distance Between FNLP and RNLP Due to Depth, Pitch, and Topography
- Using Plus/Minus Indicators for Locating
- Locating the Transmitter from the Drill
- Locating the Transmitter from the Front
- Method for Confirming Position
- Locating on the Fly
- Off-Track Locating
- Splitting the Front and Rear Negative Locate Points
- Four-Turn Technique
- Calculating Depth Based on Distance Between FNLP & RNLP
- Running off Pitch or Calculating Depth from Pitch
- Transmitter’s Signal Shape
- Antenna Configuration
- Signal Reception
- Front and Rear Negative Locate Points
- Positive Locate Line Above Transmitter
- Locating
- 3-3000-00k-F.pdf
- 3-3000-00l-F.pdf
- 3-3000-00m-F.pdf
- 3-3000-00n-F.pdf
- 3-3000-00o-F.pdf
- 3-3000-00p-F.pdf
®
Locating
In summary, the three locations mentioned above are as follows: the rear negative locate point (RNLP),
behind the transmitter; the positive locate line, above the transmitter; and the front negative locate point
(FNLP), ahead of the transmitter. The RNLP and the FNLP show the position and lateral orientation of
the transmitter.
Using Plus/Minus Indicators for Locating
The “+” and “–” signs indicate the direction to move the receiver to locate the transmitter. The “+” sign
means move the receiver forward, and the “–” sign means move it backward.
Plus “+” = Move Forward Minus “–” = Move Backward
Rear of
Receiver
Front of
Receiver
Using Plus/Minus (“+/–”) Indicators for Locating
Locating the Transmitter from the Drill
The procedure for locating the transmitter starting at the drill is given below. A similar procedure can also
be used to locate the transmitter from the front, facing toward the drill (see “Locating the Transmitter from
the Front” later in this section).
Finding the Rear Negative Locate Point (RNLP)
1. With the trigger held in, walk toward the transmitter; the signal strength in the top left window will
increase. Observe the point at which the “+” sign in the top left window changes to a “–” sign. This is
the RNLP. Move the receiver forward and backward a little until the exact location can be identified
where the “+/–” signs flip from one to the other. This is the approximate longitudinal (fore/aft) position
of the RNLP.
RNLP
Ground
Transmitter
Drill
Plus
Changes
to Minus
Finding the Rear Negative Locate Point (RNLP) from the Drill
DigiTrak
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Mark III Operator’s Manual 45