Ditch Witch 8500 - Manual (Page 39)

System Operation - 38
8500 Tracking System Operator’s Manual
Walkover Location Mode
CMW
Procedure
The 8500 tracking system provides three ways to locate a beacon using walkover location mode. Choose
which method to use based on your tracking situation.
Single-Point Location
If concerned with ghost signals or bore path is
unknown, use single-point location to find general
location of beacon.
1. Position tracker parallel (shown) to suspected
bore path.
2. Walk along bore path until solid and hollow
circles are approximately centered in field
balance bar.
3. Rotate tracker 90° so that tracker is
perpendicular to bore path.
4. Move tracker left or right to center both circles.
Tracker is now roughly over the beacon.
5. To locate beacon more precisely, follow peak or advanced location procedure.
Peak Location
If beacon depth is greater than 30’ (9 m), use peak
location procedure to position tracker over beacon.
This procedure works well at any depth.
1. With tracker perpendicular to bore path
(shown), follow locate arrows to beacon plane.
2. Move tracker laterally until signal strength is
minimized.
3. Place tracker on the ground and press SEND
button to take depth reading and send it to
display.
The signal strength reading is the approximate distance from the beacon in inches. A reading of 122
means the tracker is 122” (3.1 m) from the beacon. This reading reflects how many inches the tracker is
from the beacon regardless of the units setting in the display menu.
Incorrect procedures could result in death, injury, or property damage.
Learn to use equipment correctly.
NOTICE: Do not stand or walk over the bore path while drill string is moving (during
drilling and backreaming).