User manual

66 - Garrett Metal Detectors
FIELD OPERATIONS
As you walk, scan the searchcoil from side
to side in a straight line in front of you.
Keep the coil level and at a constant height
of one or two inches above the ground
while you scan at a rate of about one to
three feet per second.
When scanning, do not hurry. Be methodi-
cal. Do not skip any areas. Overlap each
scan sweep at least 25% of the search-
coil's width. Wear headphones for greater
sound perception and concentrate on your
scanning. When you are searching in the
All-Metal or the Discriminate/Zero modes,
detection of any metal target will be indi-
cated by an increase in sound.
Target Identification
Conductivity classification of every tar-
get over which the searchcoil passes will
always be indicated by a target cursor on
the Upper Scale. Until you gain experience
with the GTI 2500 it is recommended that
you hunt with the Search Image aid turned