White’s Electronics Coinmaster GT User Manual
Coinmaster GT
®
White’s Electronics, Inc.
Sweet Home, Oregon USA
Building the World’s Finest
metal detectors for over 60 years.
Coinmaster GT
Owner’s Manual
CONTENTS
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
QuickStart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Controls
On/Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Disc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Tone ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Trac Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Beach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pinpoint/All Metal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
More Info
VDI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Depth & Discrimination . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Coil Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Sweep Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Sizing, Pinpointing, & Digging . . . . . . . . . . . . . . . . . . . . 13
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Code of Ethics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover
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Coinmaster GT
Low battery
indicator
Backlight
indicator
Sensitivity
strength
Tone ID mode
indicator
Disc cursor
Reject icons
Depth bar
Numeric VDI
and depth
Owner’s Manual
Introduction
The Coinmaster GT (or CoinGT) is an easy-to-use metal
detector with features and performance that rival more expensive models. The CoinGT has automatic ground tracking (Auto-
Trac®) which maximizes performance across many different
ground conditions. It also features a 9-zone discriminator with
both audio and visual target identification. Each zone may be
accepted or rejected, providing the user with a way to ignore
certain types of targets like iron or foil.
In normal search mode (i.e., “Disc” mode) the audio has a
silent threshold and optional Tone ID with 9 tones that correlate
to the 9 different discrimination zones. In addition to the audio
response, the display provides visual information with an icon
cursor that points to a probable target type and a Visual Display
Indicator (VDI) number that provides even more detailed target
information (see More Info for an explanation of VDI numbers).
An estimated target depth is given by the depth bar. The Pinpoint and All Metal modes provide an audible threshold tone
and a user-selectable VCO response or a loudness response
(non-VCO).
The CoinGT uses 8 “AA” batteries and will typically run 25
hours on fresh alkaline batteries. The display includes an
optional backlight which allows for extended hunting, but will
increase battery consumption.
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Coinmaster GT
Assembly
Owner’s Manual
1. Remove all parts from the shipping carton and check assem-
bly diagram to ensure all parts are present.
2. Install black rubber washers on fiber clevis/lower rod, insert
clevis lower rod onto loop ears. Use only nonmetallic washers, fiber bolt, and fiber thumb nut to secure loop/search coil
to clevis/lower fiber rod.
3. Insert clevis/lower rod into curved “S” rod so that stainless
steel spring clip buttons line up and lock into one of the
adjustment holes in the curved “S” rod. The second or third
adjustment holes are suitable for average sized adults.
4. Wind the loop cable around the rod assembly, first revolu-
tion over the top of the rod, all the way to the top of the
curved “S” rod, about five revolutions. Use the black cable
retainers, one near the loop, and one near the top of the
curved “S” rod, to hold the loop cable in place. Plug the
cable into the jack on the front of the control box.
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Coinmaster GT
5. Grip the instrument by the handle, with your arm in the
elbow cup with strap and sweep the loop/search coil over
the floor. If the instrument fit feels uncomfortable, readjust
clevis/lower rod length with spring clip button and cam-
lock so that search coil can be held near the floor without
stooping over.
6. Adjust the elbow cup strap so that it is loose enough for you
to slide your arm in and out without loosening each time
you want to set the detector down. The elbow cup strap pro-
vides extra leverage and control. However, some prefer not
to use it.
7. Install the battery pack.
Owner’s Manual
Batteries
1. Remove the battery pack by pressing both buttons on sides
of battery compartment.
2. Slide open the tray cover. Install eight (8) “AA” alkaline
batteries taking note of correct (+) and (-) positions and
close cover.
3. Slide battery pack into compartment. A vigorous ‘slam’
may be needed to ensure a good seating.
4. Press ON/OFF button. Good batteries will produce a high
pitched beep on power-up. A low pitched beep indicates
low batteries.
5. Batteries that are weak, or become weak during use, will
automatically indicate Low Batt with a battery icon on the
center portion of the display. A three-beep alarm also
sounds to indicate batteries are too low for operation.
6. Most alkaline batteries will give about 25 hours of continu-
ous operation. Battery life will vary with intermittent use,
back-light use, temperature, control settings, target indica-
tions, battery quality, battery condition upon purchase, and
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