Minelab E-Trac User Manual

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Preferences Menu
Small or deep targets may not be detected
after sweeping over a target with a large
signal. Some time is required to allow the
baseline to fall to a sufficiently low level.
Sizing
After activating Pinpoint, the baseline is set to
a signal level. From then on, the baseline and
the sensitivity are held at constant levels.
When sweeping over a target, the detector
produces a linear audio tone. The pitch of
the tone is proportional to the strength
of the target response, and the volume is
proportional to the position of the target
under the coil.
Activating Pinpoint while the coil is away
from the target will allow the extent of the
target to be determined.
Full response
Activating Pinpoint while the coil is near
the target will allow portions of the target
response to be masked.
Masked response
Note: Do not initiate Pinpoint while over the
centre of the target or the whole target may be
masked.
To change the Pinpoint Mode:
1 Press the Menu button
2 Scroll across to Preferences (using the Right
or Left Navigation button)
3 Scroll down to Pinpoint Mode (using the
Down Navigation button)
4 Press either the Left or Right Navigation
button to change the mode
5 Press the Detect button to exit the Menu
and resume detecting
Note: Pinpoint turns E-Trac into an ‘all metal’
detector, disabling discrimination.
Pinpoint Mode
Range: Normal or Sizing
Factory Preset: Normal
There are three different Pinpoint Modes;
Normal, Sizing and Fixed.
Normal
After activating Pinpoint, the first sweep over
a target will generate a wide audio response.
With each sweep, the zero point, or baseline
of the audio response, is set to a new
level, just below the maximum signal. The
Sensitivity is also adjusted. These adjustments
keep the audio response narrow, but will
allow targets of different depths to be
pinpointed with equal precision.
Wide response
Narrow response
Contrast
Range: 1–30
Factory Preset: 15
The Contrast setting allows you to adjust the
level of LCD contrast to best suit the current
light conditions. The LCD may become
difficult to see in either bright or overcast
conditions.
To adjust the Contrast:
1 Press the Menu button
2 Scroll across to Preferences (using the Right
or Left Navigation button)
3 Scroll down to Contrast (using the Down
Navigation button)
4 Press either the Left or Right Navigation
button to change the setting
5 Press the Detect button to exit the Menu
and resume detecting
The Preferences Menu allows you to change
the appearance of E-Trac’s Detection Screens
by using settings such as Contrast, Display
Timeout, and Show Sensitivity. It also allows
you to select a different Pinpoint Mode and
perform a Master Reset.
A long pause between coil sweeps will
produce a wide audio response, due to
the baseline falling between sweeps. Short
pauses between sweeps will keep the audio
responses narrow.

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