Charles Machine Works Inc The 8500TKR ユーザーズマニュアル

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.

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.

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.