Gauss MIL MD User manual

OPERATING MANUAL
«Gauss MD»
PROFESSIONAL METAL DETECTOR
with Gauss MiL firmware

3
EN
1. Package Contents
2. Assembly
3. Turning the Detector On
4. Quick Start
5. Controls
6. Settings Menu
7. Ground Balance
8. PINPOINT
9. Backlight
10. TARGET ID in the An Mode
11. Battery Status Indicator
12. Battery Charging
13. Connecting Headphones
14. Factory Settings
15. Troubleshooting
16. Maintenance & Safety
17. Error Messages
18. Technical Specications
TABLE OF CONTENTS:
3
4
5
5
6
7
9
11
12
12
12
13
14
15
15
16
16
17
THE USE OF THE METAL DETECTOR WHILE CONDUCTING MINE
CLEARANCE ACTIVITIES (including surveying of areas)
IS ALLOWED ONLY FOR INDIVIDUALS
WHO HAVE BEEN AUTHORIZED TO
CARRY OUT SUCH WORKS, HAVE RECEIVED
TRAINING ON THE OPERATION OF THE GAUSS MIL, HAVE READ
THE OPERATING MANUAL FOR THE DEVICE, AND HAVE BEEN
GRANTED PERMISSION UNDER RELEVANT ORDERS TO
PERFORM SUCH ACTIONS.

3EN
PACKAGE CONTENTS
The Gauss MiL
package includes:
1. Control box
2. Shaft
3. Headphones
4. MDLink module
5. USB/mini USB cable
6. Magnetic charging cable
7. AC adapter with USB port
8. Set of rubber washers
9. Coil attachment bolt (2 pcs)
10. Tiger search coil
+ coil cover
+ connector protection cap
11. Tiger search coil
+ coil cover
+ connector protection cap
12. MarsMD Pointer
13. Carry bag
1
The Gauss MiL can be additionally equipped with the different sized search coils:
1 2
3
4
13
GOLIATH
search coil
(38 сm)
TIGER
search coil
(25.5x32 сm)
7``
search coil
(18 сm)
SNIPER
search coil
(15x25 сm)
5 6 7
8
9
10
11
12
DISCOVERY
search coil
(33 сm)

EN
2
4
ASSEMBLY
1 Attach the control box to the end of the shaft handle.
2 Adjust the shaft length to t your height and tighten the
twist lock to secure.
3 Insert the rubber washers into the holes of the lower shaft
yoke and place the yoke between the mounting tabs on top of
the coil. Ensure that the coil is located in the
correct position and secure it by tightening
the coil bolt. Do not overtighten.
Assembling the Gauss MiL proceeds via the
following steps:
3
2
1
Loosening direction
Tightening direction
Coil attachment bolt Rubber washers
4 Wrap the coil cable around the lower shaft in such a manner that
the rst loop close to the coil goes over the top of the lower shaft.
5 Plug the coil cable connector to the socket on the
control box and tighten the nut securely.
4
5
3 сm
6 The distance between the armrest
and the handle can be adjusted to
make the detector grip more
convenient.
For this purpose:
• using a 2 mm hex key (not supplied), remove the screws that
hold the shaft handle;
• move the handle either forwards or rearwards until desired
position is achieved and return the xing screws to secure the
handle in its new place.
6

5EN
TURNING THE DETECTOR ON
3
QUICK START
4
To turn on the device, press . You will hear a melody and "On" message will be shown on the
display. Once turned on, the detector is ready for operation and automatically enters the search
mode. Quick press to turn off the device.
It is recommended to turn on the
detector in open terrains, as far away
as possible from buildings and sources of
electromagnetic interference. There may
also be disturbance from cell phones,
motors, TV sets and other household
electrical appliances. Under these
conditions the detector may behave
erratically in the An mode producing a large
number of false signals. If you hear an
overload signal and see "OL" displayed on
the screen, move the detector coil away
from the source of overload.
Read and study this manual carefully before using the product. Understanding the
settings and modes features will allow you to use your metal detector in the most
eective and ecient way possible while searching.
1 Assemble the device according to the instructions given on page 4 (see Section 2).
2 Make sure that the detector coil is far away from metal objects and turn on the device. If you
hear an overload signal and see "OL" on the screen, move the coil away from the source of
overload.
3 Change the search settings in the Settings Menu and turn on the transmitter if you want to
use the headphones with the MDLink module.
4 If rst starting out is on the ground, the detector should be ground balanced (see Section 7)
at a rst step before the search begins.
6 After the detector check is complete, turn off the device and the MDLink module.
Take a few different types of metal objects and wave
them in front of the coil one by one. Learn how the
detector reacts and responds to different metals, try
to remember the Target ID values and sounds
produced by each object - that will help you identify
buried targets more accurately.
5

EN
5
6
CONTROLS
Ground Balance PINPOINT
Exit Change Settings
Settings
Backlight
Settings Menu
Operating Frequency
GAIN
Wireless Audio
Appears when the built-in transmitter is
activated. A digit nearby stands for the
number of the current radio channel for
sound transmission.
Backlight Indicator
TARGET ID
Shows the value that is
given to a detected
target depending on its
characteristics.
Displays the value of the
GAIN setting which
stands for the detector
sensitivity.
Battery Status
Indicator
Indicates the current
charge level of the battery.
Starts blinking when the
battery is nearly
discharged.
Ground
Balance Value
Displays the current
ground balance value.
Indicates the current
operating frequency.
Appears when the screen
backlight is on.
Battery Charge
ON / OFF
The LED inside the
control box indicates the
charging process. Red
when charging, blue
when charged.
Contains 5 adjustable
settings.

7EN
6SETTINGS MENU
The Gauss MiL
Settings Menu contains
5 adjustable settings.
Press for the rst time and the current
setting and its Target ID value will be displayed
on the screen. Pressing repeatedly calls up
other possible menu settings. If you want to
return to the previous setting, press .
The values of the selected setting can be
adjusted by using . If a setting has
multiple values, then press and hold one of
these buttons to make fast adjustments. To exit
the menu, press .
All the latest settings changes are
saved in non-volatile memory of
the device before it turns off.
FREQUENCY FREQ
LF1…LF5 is the detector’s operating frequency with the value within the 16 kHz ± 200 Hz
range. The LF group has 5 different frequencies - to tune out noise and mutual interference.
GAIN 1, 2 ... 40
FREQ L1, L2, ... L5
MODE An, iL
Vol 1, 2, ... 10
TRANS OF, c1, c2, c3, c4
GAIN GAIN
This setting value determines the detector sensitivity. It ranges from 1 to 40. The higher the
value, the greater the distance targets can be detected at.
It should be kept in mind that the detector becomes more sensitive to the effects of
electromagnetic interference and ground signals when entering the limit values of this
setting.

EN 8
VOLUME Vol
Volume adjustment. The higher the setting value is, the louder the sound volume and the
smaller the difference in volume between strong and weak signals are. The recommended
value when operating with the MDLink module is 6-8.
TRANSMITTER TRANS
The detector has an MDLink transmitter built-in in its control box. It provides wireless sound
transmission to the headphones via the MDLink module without delay and distortion. To
activate the transmitter, set it to the same channel as the module. When the transmitter is
activated, the audio output will be automatically turned off from the built-in speaker. The
radio module icon and the number of the chosen channel will appear at the top of the
screen, and the green LED light will have a periodic blink inside the control box. For effective
searching we recommend that you always use the headphones (to hear weak signals better)
thereby reducing power consumption and increasing the detector’s operation time without
charging the battery.
OPERATION MODE MODE
The iL mode for the use in both humanitarian and military demining.
iL is a special mode designed to detect metal-containing explosives. In this mode, the metal
detector has one tone audio indication without determining the type of metal
(ferrous/non-ferrous), TARGET ID isn’t displayed on screen.
The audio tone increases/decreases as the coil approaches/gets farther away from a target.
It must be remembered that explosives may contain both ferrous and non-ferrous metallic
elements (as PMN-2 or PFM-1 do), therefore an EOD specialist mustn’t ignore any signals that
may potentially be produced by explosives.
This is precisely why professional mine detectors operate in one-tone mode without
determining the type of metal (ferrous/non-ferrous).
An allows to distinguish between ferrous and non-ferrous metals.
In this mode, the operator can differentiate metal types:
• with tonality – 4 tones (1 ferrous tone, 3 non-ferrous tones);
• with TARGET ID:
ferrous range is -9 to -1;
non-ferrous range is 0 to 90.


The iL mode is more resistant to radio
waves interference and offers enhanced
operating stability.
IMPORTANT!!! In the iL mode, you should
scan the ground surface using slow, short
sweeps.
IMPORTANT!!! While scanning, each
subsequent sweep of the coil should
overlap the previous sweep to ensure
complete ground coverage.

9EN
7GROUND BALANCE
The ground balance setting
can be adjusted in two ways:
manually (Hd) and automatically (At).
You can switch between these two options by
pressing repeatedly.
Once the ground balancing is completed,
press to continue searching.
The current ground balance value is shown in
the lower-left corner of the screen, below the
GEB icon.
It’s very important to always set the
ground balance before starting the
search. If the detector isn’t properly ground
balanced, its searching abilities may be reduced
that way causing unstable operation and
production of false responses. To minimize the
eects that ground minerals have on the
detector’s performance, it’s necessary to
regularly set an accurate ground balance,
especially when changing a search site.
Find an area where there is no metal.
Press and switch the detector to the
ground balance mode. If necessary,
press repeatedly to set the manual
mode. The letter-value Hd will be shown
below the GEB icon, and a current ground
balance value will be displayed in the
Target ID eld.
In a smooth motion - the key is, with no
sudden movements and bumps - move
the coil up and down at the height of 3-40
cm above the soil surface so that the coil
passes over without touching it.
While moving, analyze the sounds emitted
by the detector in this mode. If the device
produces a low tone when you move the
coil closer to the ground, increase the
ground balance value using . If the
detector emits a high tone, do the
opposite action – decrease the value
using . Press the buttons several more
times until you get such GEB value when
the sounds become as quiet as possible or
completely silent while the coil is swung
over the ground.
Upon completion of ground balance,
press to continue detecting - a new
ground balance value will be displayed in
the GEB eld.
Find an area where there is no metal.
Press and switch the detector to the ground
balance mode. If necessary, press repeatedly
to set the automatic mode. The letter-value At will
be shown below the GEB icon, and a current
ground balance value will blink in the Target ID eld.
In a smooth motion - the key is, with no sudden
movements and bumps - move the coil up and
down at the height of 3-40 cm above the soil
surface without touching it.
While the coil is moving over the ground, the
detector starts calibrating itself to the local
ground conditions and ne tuning the ground
balance value. Repeat this exercise several times
until the sounds become as quiet as possible or
completely silent while the coil is swung over
the ground and you get a constant ground
balance value. Thus the detector automatically
adjusts the ground balance in the same way as
it is performed manually by the user.
Once the automatic ground balance is
completed, avoid sudden movements with the
coil to prevent values changing. To exit the
mode, use . A new ground balance value
will be displayed in the GEB eld. Sometimes,
upon completion of automatic ground
balancing procedure, it’s recommended to also
switch to the manual mode and adjust the
ground balance more accurately.
MANUAL GROUND BALANCE AUTOMATIC GROUND BALANCE
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.

EN 10
40 сm
3 сm
When the GAIN value is within the 37-40
range, the detector may produce false
signals. That hinders the detector’s ability to
properly ground balance automatically. If
such a situation occurs, switch to the
manual mode and ground balance the
device manually.
When detecting on loamy or alluvial river
soils with high humidity and salt content,
especially at low temperatures, there may
not be a clearly expressed ground balance
value.
The ground balance value provides the current information about the ground you are
searching on. The range of 6-20 is common to poorly mineralized sandy soils. The range of 20-45
is typical for dry clay loams and black soils with low salt content. The same soils at high humidity
and low temperature may have the values within the 45-60 range. Clay, swamp environments and
saltwater may increase this value up to 80.
If the ground balance value reaches 99,
most likely there is a metal object under
the coil and it’s necessary to change a spot
and readjust the ground balance.
If, when ground balancing, the value
tends toward 0, apparently a buried target
under the coil is a non-ferrous metal.

11 EN
8PINPOINT
In the An mode, the Gauss MiL operates as a
motion detector, that’s why you should
constantly move the coil over the ground in
order for the device to detect targets. While
moving, it’s not always possible to effectively
detect a buried object as it’s hard to identify its
exact location.
Once a target is detected and you want to
determine its precise location, press .
When the PINPOINT mode is activated, the
device can’t discriminate the metal types and
becomes a non-motion detector.
The letters PP will be displayed in the Target
ID eld, and the black bars on its left and right
sides will indicate the signal strength of a
target under the coil. The detector will also
produce an audio response with different
volume level and frequency proportionally to
the signal strength of a target, which
additionally helps to identify its position and
estimate the burial depth.
To determine the exact position
of a target:
1 After the approximate target location
is detected, move the coil away from
that area and press .
2 Sweep the coil slowly closer to the
target keeping it at the same height
above the ground. Identify the location
where the detector produces the
loudest sound and displays the
greatest number of black bars.
3 Keep this position in mind or mark it
with a shovel. Then change your sweep
direction – approach the target at a
right angle to the original search line
and repeat Step 2 above.
4 By doing so you’ll quickly determine
the target’s exact location. Press
to exit.
This mode is recommended for
use while detecting valuable
nds. It's also crucially important to keep
the coil at the same height above the
ground at all times when sweeping. The
non-motion mode is unstable in time,
that’s why operation in this mode should
be performed within a short period of
time.

EN
9
12
BACKLIGHT
The Gauss MiL LCD is equipped with a built-in backlight for operation in dark
conditions. It has 4 brightness levels.
The last selected level will be saved in the detector’s memory after it’s turned off.
When you turn on the detector, the LCD backlight - even if it’s switched off - also turns on
automatically for a short period of time.
Press and hold to turn the backlight on or off. When
the backlight is turned on, the icon will appear at the
top of the screen and the brightness will increase smoothly
to a set value.
If you continue holding down while turning on the
backlight, you’ll be able to choose one out of the 4
brightness levels in approximately 2 seconds.
10 TARGET ID IN THE AN MODE
Target ID is the number produced by the device while identifying a buried object based on the
electromagnetic properties of metals and physical dimensions of the item found. Ferrous targets
mostly produce negative numbers (-9, -8…-1) whereas non-ferrous targets –positive numbers (0,
1…90). The last detected Target ID value stays on the display for 5 seconds until another object is
detected.
11 BATTERY STATUS INDICATOR
While in operation, the detector is
capable of continuously monitoring the
current battery level which will be
shown in the status bar at the top of the
screen.
When the battery charge is almost
exhausted, the battery status indicator
starts blinking and your
headphones/speaker will emit a short
sound warning that the battery needs
charging.
Important! When the battery level is
critically low, the detector will turn o
automatically.
80% – 100%
60% – 80%
40% – 60%
10% – 20%
<1% (charging required)

13 EN
12 BATTERY CHARGING
The battery should be charged according to
the following steps:
Take the supplied charging cable and connect its
magnetic connector to the counterpart on the back
of the control box.
Plug the other end of the cable into the power
adapter supplied or any standard powered USB-A
port.
The LED on the left side of the front panel (near the
ON/OFF button) will ash red indicating the
charging process. When the battery is fully charged,
the red light will turn blue.
Wait until the charging is complete and disconnect
the cable in the reverse order: the cable end from
the power adapter rst and then the magnetic
connector from the control box.
The Gauss MiL is powered by a built-in lithium-ion battery. The included USB charging cable
with a magnetic connector is used to charge the battery.
Important! Strictly observe the
procedure for connecting the
charging cable indicated in this
manual. Keep the magnetic cable
connector away from metal particles
to avoid short
circuiting and
breakdown of
the power
adapter or
other device
the charging
cable is
plugged into.
Important! To avoid battery
damage, never charge a
battery in an area with an ambient
temperature of less than 5ºC. Always
allow the control box to rst warm up
to room temperature for a few hours, in
order to then charge the battery under
optimum condition.
Battery maintenance
Lithium-ion battery may degrade if
they aren’t in use for long periods of
time. Fully charge the battery regularly,
at least once every 2-3 months.
However, be aware that the lithium-ion
battery capacity decreases gradually
with time, even under normal usage
conditions. In view of this, the battery
needs to be replaced every few years.
Replacement batteries can be supplied
and installed by an authorized service
center.
The charging time for a completely
discharged battery is estimated to be about
5 hours if the charging adapter provides a power
output of 5V and 1A. Less power from the power
source may extend the charging time. If the
detector is turned on while charging, the charge
time will be longer.
To charge the Gauss MiL, the use of any quick charge AC power adapters is prohibited!
It may cause damage or destroy the battery.
Use the power adapter supplied in the package.
1
2
3
4

EN
13
14
CONNECTING HEADPHONES
The MDLink wireless audio system
allows you to choose one of 4
channel options.
1 Plug your headphones into a 6.35 mm
headphone jack on the MDLink module.
2 Turn on the detector and the module
(sequence doesn't matter).
3 Quick press to step through the
channel selection.
4 Activate the transmitter (TRANS) in the
Settings Menu by setting it to the same
channel as the module. Once the
detector and the module are
successfully paired, you will hear a beep
sound and the LED light will ash
constantly.
5 Use the / buttons on the
module to adjust the volume to your
preferred level.
6 Attach the module to a breast pocket or
a belt.
If two MDLink wireless audio
systems are located close to each
other, they need to operate on dierent
channels to eliminate mutual
interference. If the transmitter is
disconnected from the module (due to
the channel change or connection loss),
you will hear a disconnect signal while
the current channel LED indicator will
blink in a repeating pattern.
Module Charging / Low Battery Warning
How to connect your headphones to the MDLink module:
The MDLink module contains a rechargeable Li-Ion
battery and a built-in charge controller.
To charge the battery, you need to plug one end of the
USB/mini USB cable (supplied) into the mini-USB output
on the module and the other end into the USB power
adapter (supplied) or a power bank (not supplied).
While being charged, the LED light will ash blue. Once
charging is complete, the LED will turn off by itself.
When the module is turned on, the channel LEDs will
ash briey. Depending on the number of LED lights, you
can get a rough estimate of the battery charge level (each
LED represents 25%):
• One Light = 25%
• Two Lights = 50%
• Three Lights = 75%
• Four Lights = 100%
When battery level drops to roughly 5%, the battery
LED on the module will start blinking red and you will
hear a warning beep in your headphones.
When battery level approaches roughly 2%, the LED
indicator on the module will be ashing red constantly
and the beep will sound every 30 seconds until the
battery is fully discharged.
There are 10 levels of volume control.
Once the maximum or minimum volume
is reached, you will hear a low pitch
sound indicating the upper or lower
volume limit.
After turning off the MDLink power
button, the current channel and volume
level will remain in the module’s memory.
Volume
Control
Channel Switch
Power
Button
Battery
Status LED
Channel
Indicator LED
6.35 mm (1/4’’)
Headphone
Socket
Charging
Socket

15 EN
14 FACTORY SETTINGS
All settings are saved in the Gauss MiL`s memory after it’s turned off
and are automatically restored after it’s turned on.
1.
2.
3.
TO RETURN YOUR SETTINGS TO THEIR
FACTORY PRESETS, PERFORM THE
FOLLOWING STEPS:
Turn off the detector.
Press and hold , turn on the detector
using .
Hold down and wait until all options of the
Settings Menu briefly appear on the LCD screen.
15 TROUBLESHOOTING
Ensure the battery is sufficiently charged.
Connect the supplied charger to the detector and wait until charging is
complete.
1. Check the coil cable, make sure all the contacts are clean.
2. Ensure the nut on the coil connector is rmly tightened.
3. Move away from the source of interference.
4. Try switching to another operating frequency.
5. Reduce the detector’s sensitivity
Ensure the built-in transmitter is turned off.
Ensure both devices are set to the same channel.
Change the mounting spot of the MDLink module. It should be located
at a place where electromagnetic waves meet no barriers.
Rotate the twist lock in loosening direction and clean it out to remove
dirt and sand.
The detector turns on, but
turns off by itself
The detector doesn’t turn on
Erratic noises
No sound from the built-in
speaker
No connection with the
MDLink module
Unstable connection with the
MDLink module
The shaft twist lock seizes
Trouble Solution

EN
16
16
MAINTANENCE & SAFETY
GAUSS MIL CARE:
Do not leave the detector in extreme cold or heat (e.g. in a hot car) as well as in damp locations.
Avoid getting sand and grit in the shafts and fastening parts (e.g. twist locks and coil assembly).
If there is a noticeable scratch on the lower shaft, wipe it thoroughly with a damp cloth.
Treat the detector coil with constant care, do not subject to strong shock and always remove
traces of dirt.
Remember that the detector coil is submersible whereas the control box isn’t. Never submerge
the control box in water!
Loosen the coil attachment bolt when the detector isn’t in use so that the coil mounting tabs
don’t experience excessive deformation to prevent cracks in the housing.
Rinse the coil and the shaft with fresh water after use on the beach. Do not wash the control box
by spraying or pouring water on it!
Before charging, remove metal particles accumulated on the magnetic cable connector.
Strictly follow the relevant instructions of this manual while charging the detector.
Ensure that the coil cable is in good condition and not subject to excessive stress.
Observe safety precautions when transporting or storing the detector. The device screen can get
scratches or serious damage if not treated with due care. Use a screen protector to keep it pristine.
Do not expose the detector to extreme temperatures. Operating temperature range: -20°C to
+45°C.
GENERAL CARE:
Do not use solvents to clean the detector. Wipe down with a cloth using warm soapy water or a
mild household detergent.
Do not expose the accessories to moisture or excess humidity, keep them away from liquids.
Do not open or distort the internal batteries.
Strictly follow the relevant instructions of this manual while charging the accessories.
Do not throw the detector or accessories into a re as this may cause an explosion.
The Gauss MiL is a high-quality electronic device, therefore proper care and maintenance is
essential to ensure its continuous reliable operation.
For reliable and long-lasting operation, the Gauss MiL and MDLink batteries need to be
charged at least once every 3 months in a temperature range of 0°C to +45°С.
The storage temperature range: -20°C to +45°C.
17 ERROR MESSAGES
During operation, the detector is capable of continuously monitoring the coil condition to
determine the coil disconnection or overload problem. If such situation occurs, a warning
message will be displayed in the Target ID eld.
Move the coil away from the source of overload.
Ensure the coil connector is plugged into the control box
socket. Check the coil cable and housing for any visible
signs of damage.
Continue searching.
Код сповіщення
Overload
Coil Not Connected
Coil Connected
Необхідні дії
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

17 EN
18 TECHNICAL SPECIFICATIONS
* The warranty doesn’t apply to the headphones.
≈ 150 сm
15.8...16.2 kHz
LCD
4-tone volume control
with metal discrimination
without metal discrimination
ground balance performed manually
ground balance performed automatically
2400 –2483.5 MHz
+ 4 dBm
≤ 10 meters
Max range
Visual
Audible
Metal detector (An)
Mine detector (iL)
Manual
Automatic
Radio frequency range
Power
Wireless transmission range
4 brightness levels
internal Li-ion battery
up to 24 hours (but not less than 15 hours)
Detecting Range
Operating Frequency
Indication
Ground Balance
Built-in Transmitter
LCD Backlight
Power Supply
Operating Time
-20 ºС to +45 ºС
-20 ºС to +45 ºС
24 months
800 mm/1390 mm
Operating Temperature Range
Storage Temperature Range
Warranty*
Shaft Length (min/max)
1,320 g
Radio Frequency Range
Wireless Transmission Range
Operating Time
RF Transmission Power
Sensitivity
Audio Amplier Power
Volume Adjustment
Size
Weight
Search Mode
2400 – 2483.5 MHz
≤ 10 meters
10 hours
+ 4 dBm
-89 dBm
1 W
10 levels
70.2х52х30 mm
64 g
MDLink Module
Gauss MiL Detector
ІР 65
Ступінь захисту
Weight

gaussmil.com
___________________
E-mail: [email protected]