27
S
EARCH
HEADS
R
To scan for reinforcement bars or ducts in line with (in front of) the end of the borehole:
Set
the switch to the forward looking position and push the Borehole Probe into the drilled hole slowly.
Figure 20. Scanning a borehole
11.1 Search head extension arm
This optional accessory allows the operator simple access to areas
normally requiring ladders or scaffolding. The search head extension arm
reduces the need to kneel down and allows the user to scan bridge decks
and floor areas from a standing postion.
The extension arm is only suitable for use with the standard and narrow
pitch search heads. See “Accessories” on page 33 for ordering
information.
331.book Page 27 Thursday, March 12, 2009 9:51 PM
