Minelab E-Trac User Manual

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Volume Gain
Range: 1–30
Factory Preset: 24
The Volume Gain controls the amplification
of a target’s audio response, relative to the
target signal strength. The Volume Gain
control is the Audio setting that is most
similar to volume adjustments in other
devices (e.g. radio or television
volume controls).
With a setting of 1 the target signal will not
be amplified. Weak target signals will sound
quiet, medium target signals will sound mid-
range and strong target signals will sound
loud. There will be greater differentiation
between target signal strengths, however,
weak signals will be harder to hear.
Volume Limit
Range: 0–30
Factory Preset: 30
The Volume Limit sets the maximum volume
of target signals. When detecting, the sound
produced by a distant target will be quiet.
As the coil gets closer to the target, the
volume increases until it reaches the Volume
Limit setting.
A high Volume Limit will allow a greater
difference between a small and large target.
The Factory Preset for Volume Limit is set
at an appropriate level for E-Trac’s built-in
speaker. If the audio is too loud whilst using
headphones, use the Volume Limit setting to
reduce the audio volume.
To adjust the Volume Limit:
1 Press the Menu button
2 Scroll across to Audio (using the Right or
Left Navigation button)
3 Scroll down to Volume Limit (using the
Down Navigation button)
4 Press either the Left or Right Navigation
button to change the Volume Limit
5 Press the Detect button to exit the Menu
and resume detecting
A low Volume Limit will not allow a great
difference between a small and large target.
Audio range
that you are able
to hear.
High Vol. Limit
Audio range
that you are able
to hear.
Low Vol. Limit
To adjust the Volume Gain:
1 Press the Menu button
2 Scroll across to Audio (using the Right or
Left Navigation button)
3 Scroll down to Volume Gain (using the
Down Navigation button)
4 Press either the Left or Right Navigation
button to change the Volume Gain setting
5 Press the Detect button to exit the Menu
and resume detecting
With a setting of 15, the audio response
will be partially amplified. Weak to medium
strength signals will sound louder, but strong
signals will not sound much louder than
medium signals as the volume reaches the
Volume Limit.
With a setting of 30, all target signals will
be amplified to a loud audio response. At
this setting there will be less differentiation
between medium and strong signals, but
weak target signals will be easier to hear.
Volume Gain = 15
Volume Limit
Weak
Medium
Strong
Target Signal Strength
Target Response Volume
Volume Gain = 1
Volume Limit
Weak
Medium
Strong
Target Signal Strength
Target Response Volume
Volume Gain = 30
Volume Limit
Weak
Medium
Strong
Target Signal Strength
Target Response Volume
CAUTION: A high Volume Limit setting
might damage your hearing if a large
target is detected.
Audio Menu

Minelab E-Trac Specifications

General

Transmission Technology	Full Band Spectrum (FBS) Multifrequency Technology
Microprocessor	32bit, 48MHz microprocessor – fast and powerful
Coil	Ultra-lightweight 11” Double D (DD) waterproof coil
Connectivity	USB connector for communication with Personal Computer
Software	Intuitive User Interface; Fast Target processing; Multi-language functionality
QuickMask™	Fast and Easy adjustment of Ferrous and Conductivity Discrimination
User Modes	4 Minelab Modes and 4 My Modes
Depth Gauge	Accurate Gauge active in Normal detecting and Pinpoint mode
Pinpoint	Non-motion with modulated audio and visual Crosshair on LCD, 2 Modes – Normal and Sizing
Discrimination	2 Dimensional Smartfind™ Discrimination
Target Identification	2 Dimensional Smartfind™ Size / Conductivity and Ferrous characteristics Conductivity 1-50, Ferrous 1-35
Sensitivity Adjustment	Fully Automatic; adjustable to be more aggressive or conservative, Manual Setting 1-30
Sensitivity Gauge	Auto Level, Manual Level, Suggested Level
Threshold	Fine adjustment level from 1-50
Recovery Speed	Selectable Fast & Deep
Trash Density	Low for areas with isolated targets or High, for areas with more trash
Noise Cancel	Automatic & Manual selection of 11 channels
Audio Response	4 Settings: Normal, Long, Smooth, Pitch Hold
Tone ID Number of Tones	1, 2, 4 and Multi-tone; customizable for Conductivity or Ferrous response
Tone ID Variability	30 adjustable steps for better Target Identification
Headphone	Input ¼” 100Ω Stereo Jack
Ground Balance Modes	Auto Ground Compensation - Advanced Digital Filtering
Ground Settings	Neutral for most ground conditions, Difficult for more mineralized soils
Batteries	1600 mAh NiMH or Alkaline batteries
Low Battery Audio Alarm	Audio and visual indication
Visual Display	Large 3.4” (8.65cm) greyscale LCD panel with Contrast adjustment and Backlight
Patents	US 4890064; US 5537041; US 5506506