User's Manual

FIELD EQUIPMENT
NUSEIS
Geophysical Technology Inc Field Equipment Page | 60
Rotary Hammer Drill (PDT-H)
• In the case where battery power may not be sufficient, an electric rotary hammer drill can be
used.
• The current tested model is the Bosch RH540M.
• A small portable source of AC power would need to be available for each drill.
• Operation would be similar to the battery hammer drill; drill depth should be marked on the bit
in use to ensure the correct depth for the M series or N series nodes.
Figure 48