Garrett INFINIUM LS User guide

OPERATING INSTRUCTIONS:

INFINIUM LS

The Infinium LS is an extremely versatile detector, offering five (5) mounting/stem
arrangements to suit your search needs.

• Long stem with the housing mounted above or below the stem.

• Long stem with the housing mounted below the cuff assembly.

• Short stem with mounting as above for diving.

• Belt mounting leaving the stem free of housing. This may be used with either stem

configuration.

ASSEMBLY INSTRUCTIONS

Choose the desired operating stem/housing configuration and assemble the stem.

1. Compress the button ends of the spring clip and insert, button end first, into the lower stem
of the detector so that the button ends pop out of the holes. This will enable the lower stem
assembly to be attached to the upper stem and the over all length of the detector adjusted
for a comfortable operating length.

2. Attach the lower stem to the searchcoil by inserting the two rubber washers into the stem
and slipping the searchcoil onto the stem. Insert the threaded bolt through the holes and
hand-tighten the two knobs.

3. Install the upper stem to the lower and adjust for the most comfortable operating length. At
this time adjust the cuff positioning as desired for your comfort in the field.

4. Wrap the searchcoil cable snugly about the stem with the first turn of the cable over the
stem.

5. Insert the cable connector into the connector on the detector housing and
securely. Do not over tighten. Ensure that the searchcoil connector is clean and the o-ring
is lubricated. If necessary use a very small amount of silicon grease or petroleum jelly. Do
not coat the connector pins with lubricant.

6. Perform a battery test by turning the detector on. Note the number of audio tones that
occur. Pass a metal target such as a coin beneath the searchcoil to confirm metal
detection.

CONTROL FUNCTIONS

Familiarize yourself with the detectors controls. Their basic functions are given here. How
they can help you find treasure is explained in the Operating Instructions of this Manual.

Power:

• Turns the detector on. The batteries are checked automatically and audibly each time

the detector is turned on.

• Turns the detector off.

hand-tighten

• Selects one of the three (3) Automatic Ground Track positions; Slow, Lock, or Fast.

Raise searchcoil approximately two feet 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 and the batteries are very good, two tones
and the batteries are adequate. One tone or no tone and the batteries need to be replaced or
recharged.

Threshold:

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.

Discrimination Adjustment:

Located on the upper left of the detector faceplate panel. Use the Discrimination knob 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. Land Headphones are included with the
Infinium LS. Underwater headphones are an Optional Accessory for the detector.

OPERATING INSTRUCTIONS

The following procedure shows just how easy it is to operate the Infinium LS detector.
Turn On/Battery Test:

• Turn on the detector and note the results of the automatic battery check represented by
number of audio tones. Three or four tones and the batteries are good, two tones indicate
they are adequate. When one tone or no tone is sounded, replace or recharge the
batteries.

• Scan a metal object to confirm detection.

Selecting Automatic Ground Track settings:

• Know the conditions of the area to be searched.

• Initially select the Lock position. Operating in the Lock position is recommended for

maximum detection depth unless:

The detector is not properly ground balanced, or

You are hunting in changing ground conditions that require continuous ground tracking.

• Improper ground balance or changing ground minerals are identified by erratic audio
signals caused by the ground. If you experience these signals, you will need to switch to
either Fast or Slow. It is recommended that the detector be ground balanced before
continuing.

• To ground balance the detector, turn the Automatic Ground Track control to either fast or
slow, and bounce the coil about two to six inches above the ground. When the detector’s

audio signal becomes smooth turn the control to lock and the unit will lock the ground track
setting at this value.

• If erratic signals continue, you may need to turn the Automatic Ground Track Control to
slow or fast and hunt in one of those modes.
Use Slow when:

• Operating over slowly changing ground mineralization, or

• When small ground balancing adjustments are needed.

Use Fast When:

• Hunting over extreme or quickly changing ground mineralization, or

• When large ground balancing adjustments are needed.

Improper ground balance will degrade detection depth and audio stability. It should not be
necessary to re-ground balance every time you turn the detector on. It will continue to
operate with the same ground balance level as before the detector was turned off.

In the rare event that extreme ground conditions continue to produce audio signals,
increase the discrimination control setting in small increments until the detector becomes
stable. To insure the maximum possible detection depth, only increase discrimination
enough to achieve detector stability. This adjustment should never exceed the number
three (3) setting on the dial.

• Adjust the audio threshold level to the desired setting. Typically this level is set to the point
that the threshold sound is just audible, barely above being silent.

• Set the Discrimination Control to zero or at least a very low level until you can determine
the types and amount of trash metal is present. Discriminate only the minimum amount of
items to insure that all acceptable targets are located to maximize your search goals.

Bench Testing and Understanding Audio Signals:

• Bench testing is recommended to familiarize yourself with the detection capabilities and
audio responses of the detector. This will help determine if a target is treasure or trash.
Since Pulse Induction detectors only give audible clues to the identity of detected targets, it
is important to learn these different signals. The Infinium LS produces "All-Metal" type
audio and you will therefore hear every target. The audio response may vary in volume or
sharpness unlike the hard, sharp report of a VLF motion-mode detector

• Tests should be performed with the searchcoil perpendicular to a bench, floor, or other non­metallic surface and several feet away from any large metallic object. Pass various metallic
targets across the bottom of the searchcoil at a distance of about three inches. Listen
carefully to the audio tones, noting which targets produce high and low tones and how the
target response changes with discrimination. Due to the extreme sensitivity of the Infinium
LS, when testing the detector in the house or near any electrical device expect the audio
threshold to be less stable than you will find it to be in the field.

• As a general rule, poor conductors(small nuggets, most rings, pull-tabs, nickels, etc.)
should produce a high tone followed by a low tone echo. Good conductors such as large
nuggets and coins, other than the nickel, should produce a low tone followed by a high tone
echo. In addition most iron will produce a low tone followed by a high tone echo, since to a
PI detector iron behaves like a good conductor.

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