Garrett Metal Detectors SEA HUNTER MARK ll - Manual (Page 2)

Raise searchcoil approximately one foot above the ground. Rotate this knob to turn the
detector on and the detector begins operating. Each time the detector is turned on the battery
condition is reported audibly. Three or more tones indicate the batteries are very good, two
tones indicate the batteries are adequate. One tone or no tone indicate the batteries need to
be replaced.
Audio:
This control on the lower left of the detector panel allows the operator to adjust precisely the
level of sound generated by the detector. It is suggested that this sound level be adjusted to a
threshold level where it is barely audible when searching.
Elimination Control:
Located on the upper left of the detector faceplate panel. Used with either of the two Trash
Elimination modes to choose the level of trash rejection appropriate to your search needs. As
the control knob is rotated clockwise more items are eliminated from detection.
Headphone Jack:
Located on the upper right of the detector panel. Underwater headphones are included with
the detector.
SEARCH MODES
Standard Trash Elimination and Discrete Trash Elimination are the search modes available on
the Sea Hunter Mark ll. The selector switch for these modes is included with the Power Control
on the lower right of the detector panel.
Standard Trash Elimination:
This is the search mode normally available on conventional pulse induction (PI) detectors. In
this mode the background audio threshold is continuous and remains close to the level
established by the operator. Some slight variation of the audio level is normal. Small or deep
targets produce faint and weak signals; large or shallow targets produce loud, strong audio
signals.
The Elimination Control, as rotated clockwise, decreases the detectors response to metals
discovered. Poor conductors such as foil, nickel, and pulltabs are eliminated from detection
much lower on the scale than good conductors like coins and most jewelry. Poor conductors
can be effectively eliminated from detection, however some response may be heard if these
items are near the searchcoil during your search. Jewelry is generally located in the middle of
the conductive range so it is important to use no more trash elimination than necessary. Most
successful detectorists accept all targets of the conductivity of a US nickel or better. Trash
items can always be discarded when the hunt is over.
The Standard Trash Elimination mode permits a very slow scan speed that makes it
particularly effective for pinpointing targets. This mode also provides the deepest possible
detection depth and is most useful in areas with little trash.
Discrete Trash Elimination: