Minelab Explorer SE Quick Start Manual

Quick Start
Turn on the detector
Press NOISE CANCEL
After 30 seconds electrical interference will be reduced
Go Detecting!
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The Explorer SE is Minelab’s most technologically advanced detector, incorporating the unique Full Band Spectrum (FBS) Technology.
Its sleek, sturdy design, innovative control panel, lightweight coil and comprehensive targeting options set it apart from any other detector available today.
Congratulations on Purchasing Your
The Explorer SE will locate valuable metal objects in a variety of ground conditions, including extreme salt conditions and sea water, wet beach sand and highly mineralized ground conditions.
This manual is designed to help both the beginner and expert treasure hunter get the best performance out of the Explorer SE.
Minelab wishes you every success in your treasure hunting !
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Contents
Quick Start Back Page
How Metal Detectors Work 4
The Unique Technology of the Explorer SE 5
Assembly 6
Battery Packs 10
Adjusting the Detector for Comfortable Detecting 12
Introducing the Control Panel 14
Introducing the Smartfind Detect Screen 16
Help Function 17
Turning the Detector On 18
Detecting Basics 19
A Simple Detecting Exercise 20
Detector Sounds 20
Sensitivity 22
Depth 23
Threshold 24
Full Screen Display 26
Smartfind Display 28
Digital Display 30
Discrimination Pattern 32
Changing Discrimination Patterns 33
IRON MASK - Setting the Level of Ferrous Rejection 34
All Metal - Accepting All Targets 36
Menu Structure 38
SELECT - Preset Discrimination Patterns 40
SELECT - Selecting Preset Discrimination Patterns 42
SELECT - Saving Discrimination Patterns 43
LEARN - Creating a Discrimination Pattern
with a Specific Target 44
LEARN - Accepting a Target 46
LEARN - Rejecting a Target 47
LEARN - Saving Discrimination Patterns 48
EDIT - Editing Discrimination Patterns 50
EDIT - Editing Discrimination Patterns 52
EDIT - Saving Discrimination Patterns 53
RECOVERY - Enhancing Explorer SE Performance 54
CONT RAST - Adjusting LCD Brightness 55
NOISE CANCEL - Reducing Electrical Interference 56
VOLUME 58
TONE - Adjusting Audio Pitch 60
RESPONSE - Selecting the Way Targets Sound 62
SOUNDS - Tone Identification 64
Pinpointing - Locating the Target 66
Recovering the Target 68
Where Will I Find Treasure? 69
USER SET TINGS - Saving Your Preferred Settings 70
User Preferences - Range, Factory Presets Table 71
Battery Performance 72
Accessories 74
Tec hnic al Spe cif ic atio ns 75
Detector Care and Safety 76
Tro ub le sh oo ti ng 77
Glossary of Terms 78
Warranty 82
Service Repair Form 83
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How Metal Detectors Work
Metal detectors create an elec tro­magnetic (EM) field, which penetrates the ground. Because metal is conductive it causes a change in this field. The detector senses this change and sends a signal back to the control box, alerting the operator.
Metal detectors can determine the size, shape and composition of metallic objects beneath the coil. Typically, the larger the object, the easier it is to detect.
A metal detector’s EM operating frequencies are measured in kilohertz (kHz).
Low frequency EM fields (e.g. 1.5 kHz) deeply penetrate the ground, but sensitivity to smaller targets is low. High frequency EM fields have a more shallow depth of penetration but sensitivity to small targets is high.
The Explorer SE’s multiple frequency operation provides the advantage of both.
Full Band Spectrum (FBS)
Most detectors on the market operate
on a single or dual frequency, ranging from 1 to 70 kilohertz (kHz)
Although this technology has served the
industry well for years, Minelab found that a frequency that worked well in one area would often offer only marginal performance when used in another location. Ground mineralisation, trash content, and target size all had an effect on how effective a detector transmitting a single frequency would operate.
Full Band Spectrum technology
combines Minelab’s existing multiple frequency BBS technology with a powerful new microprocessor to give:
> greater detecting depth
> high sensitivity over a wide range of
targets
> less interference from electromagnetic
sources
> more accurate identification of target
characteristics.
The Full Band Spectrum (FBS) circuit automatically transmits multiple frequencies simultaneously. This increased frequency range means that the signal received from the detector coil is analyzed from a wide range of responses. This allows the Explorer SE to analyse more target information so that the target identification (ID) is more accurate.
Minelab’s unique FBS technology means deep, sensitive, accurate detecting.
Discrimination
Discrimination is the ability of a metal detector to identify the user’s desired target (e.g. jewelry) and eliminate signals from undesirable material (e.g. nails).
The Explorer SE can be programmed in a number of ways to discriminate against unwanted targets in different types of ground.
(Discrimination Pattern, pg. 32)
Ground
Compensation
The Explorer SE uses a sophisticated approach to the elimination of ground mineralisation. It uses advanced digital filtering to eliminate the influence of ground signals.
The Unique Technology of the Explorer SE
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Assembly
Attaching the Coil to the Lower Shaft :
1 Plug the two rubber washers into the
holes on either side of the lower shaft.
2 Feed the coil cable up through the
inside of the lower shaft.
3 Place the coil on a flat surface.
4 Slide the lower shaft into the bracket on
top of the coil. Ensure that the open side of the lower shaft faces the ground.
Attaching the Lower Shaft to the
Upper Shaft:
1 Fully unlock the upper shaft camlock by
releasing the lever from the shaft.
2 Feed the coil cable up through the
inside of the upper shaft.
3 Ensuring that the camlock side of the
shaft is facing the ground, slide the upper shaft over the lower shaft, so that the coil cable appears out the top.
5 Insert the bolt through the lower shaft
and the bracket on top of the coil.
6 Fasten with the nut provided, being
careful not to damage the thread of the nut by over-tightening. This will need to be loosened later to adjust the coil to a comfortable detecting angle.
7 Ensure that the coil cable appears out
the top of the lower shaft.
The coil cabl e is directly wired into the
coil and is not removable. Any attempt to remove this cable wil l void your warranty.
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Attaching the Armrest St rap:
Clip both buckles onto the outer sides
of the armrest.
Attaching the Headphones:
Plug the headphone jack into the
headphone socket, located in the rubber seal at the top of the handle assembly.
The headphones may be plugged or
unplugged at any stage during detecting.
Removing the Coil:
1 Follow the steps of Attaching the lower
shaft ... and Attachi ng the coil ... ( pg. 6) in
reverse order to disconnect the coil from the detector.
2 Pull the coil cable out from inside the
lower shaft.
Do not attempt to remove the shaft
assembly without first disconnecting the coil cable from the control box.
A range of accessory coils are available,
(Accessories, pg. 74)
Connecting t he Shaft Assembly to the
Handle Assembly:
1 Fully unlock the control box camlock.
2 Align and push the coil cable connector
into the socket underneath the control box, firmly tightening the retaining ring to secure.
3 Push the handle assembly onto the
upper shaft, as far as it will go.
4 Fully lock the control box camlock by
pushing the lever flat onto the control box.
(Adjusting the Detector for Comfortable
Detecting, pg. 12)
Assembly
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Removing the Battery Pack from the
Battery Compartment:
1 Ensure that the detec tor is turned off
before removing the batter y pack.
2 Rest the detector on a flat surface.
3 Lift the rubber seal of the batter y
compartment located at the end of the handle assembly.
4 Raise the yellow tab to release the
spring loaded battery pack.
5 Remove the battery pack entirely from
the battery compartment.
Do not attempt to disassemble the NiMH
battery pack.
If disposing of pack, do not incinerate.
Contact your local a uthorities to enquire about disposal or recycling facilities.
The headphone jack must be unplugged
before lifting the rubber seal.
Battery Packs
Replacing ‘AA’ Batteries.
1 Slide the lid of the battery pack in the
direction of the arrow to open.
2 Place 8 x ‘AA’ cell alkaline batteries into
the battery pack ensuring that the + and – are aligned as indicated on the label.
3 Slide the lid onto the battery pack until
it ‘clicks’ into place.
Recharging NiMH Battery Pack with
the Mains Charger:
1 Remove battery pack.
2 Insert the mains charger cable into the
socket at the tapered end of the batter y pack.
3 Plug the mains charger into the wall
socket and turn on the switch. Leave for 18 hours to fully recharge. New batteries will reach their full capacity after several charge/ discharge cycles.
4 Remove the battery charger plug from
the battery pack. Slide the pack back into the battery compartment until it clicks into place.
The Explorer SE has two types of battery
packs:
> One is a sealed rechargeable Nickel
Metal Hydride (NiMH) battery pack. It comes with a charger which plugs into a conventional wall socket. The NiMH battery pack is supplied in the discharged condition and needs to be charged before operating the detector.
> The other battery pack is a housing
for 8 ‘AA’ batteries.
It is normal for the tip of the rechargeable battery to get warm while charging because the current regulator is mounted inside the battery pack.
The battery pack will not be damaged if left on the charger for more than 18 hours.
The battery chargers will not recharge rechargeable alkaline or NiCad batteries.
Using a non-Minelab charger with the battery pack may damage it and will void the product warranty.
Unlike Nickel Cadmium batteries, the NiMH battery pack DOES NOT have to be flattened to be recharged.
Whenever the detector has been unused for a lengthy period, recharge the battery pack to ensure full p erformance.
High quality alkaline batteries are recommended to optimise detector usage time. Rechargeable alkaline, NiMH or NiCad batteries may be used but must be removed and recharged separately. Check fitment of rechargea ble batteries prior to purchase, as some makes do not comply with standard size requirements.
Rechargeable Lithium Ion batteries will give a combined voltage above 13 V and therefore cannot be used with the Explorer SE.
Do not leave drained AA batteries in the detector as they can leak.
Placing the Battery Pack into the
Battery Compartment:
1 Lift the rubber seal of the handle
assembly.
2 Place the battery pack entirely into
the handle assembly, until it clicks into place.
3 Close the rubber seal, to close the
battery compartment.
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For comfortable, long term detecting, it is important that you take the time to adjust the detector correctly.
Holding the Detector:
Thread your arm through the armrest and strap. Grasp the handle of the detector and rest your forearm in the armrest.
Adjusting the Position of the Armrest :
The correct position of the armrest
should allow you to comfortably grip the handle. Your elbow should sit just above the back of the armrest and the detector should feel like an extension of your forearm.
1 Use a screwdriver or the edge of a coin
to loosen the screw in the centre of the armrest (turn counter-clockwise).
2 While holding the detector, slide the
armrest to sit just below your elbow.
3 Remove your arm. Tighten screw
(clockwise) to lock the armrest into position.
Adjusting the Armrest Strap:
1 Loosen strap by tilting the edge of the
buckle out to release it from the armrest.
2 Undo the Velcro and pull the buckle
outwards (towards yourself). Clip the buckle back into place and tighten the strap to secure.
Adjusting the Detector for Comfortable Detecting
Adjusting the Length of the Shafts:
The correct length of shaft should allow you to swing the coil across the ground without any uncomfortable stretching or stooping.
If the coil is too far from your body it will be more difficult to balance and manoeuvre while detecting.
If the coil is too close to your body it may detect your digging tools or any other metal which you are carrying, causing confusing sounds.
Adjust the lower shaft to the correct length, securing the camlock to hold it in place.
For tall people, a longer lower shaft is available, (Accessories , pg. 74)
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POWER
Turns the Explorer SE on/off and when held for 2 seconds, restores factory presets (pg. 18).
Introducing the Control Panel
BACKLIGHT
The backlight provides greater screen clarity in dim conditions. Even if it is switched off, the backlight illuminates for 1 second as the detector is switched on. Turning this light off will extend battery life. Contrast of the LCD can be adjusted (pg. 55).
To turn the backlight on/off:
Press the
BACKLIGHT button.
LCD (Liquid Crystal Display)
NOISE CANCEL
Automatically selects the quietest, most stable channel for detecting (pg. 56).
DETECT
Returns to the detect display (Smartfind / Digital) at any stage of operation, allowing you to continue detecting. When in the detect display, pressing
DETECT will switch between
Smartfind and Digital (pg. 31).
SHIFT BUTTONS
Pressing and releasing a shift button next to an icon on the display will select this option.
BATTERY LIFE
Indicates the battery charge available
(pg. 72).
BACK
‘Retraces’ your steps back through the displays. This is useful to alter the last adjusted setting. The
BACK button
will retrace the last 3 steps (pg. 38).
PINPOINT
Turns Pinpoint on / off (pg. 66).
A black and flashing bar on the LCD above ‘ON’ indicates Pinpoint is on. A black bar on the LCD above ‘OFF’ indicates Pinpoint is off.
Pinpoint assists in locating the exact position of a target prior to recovery.
IRON MASK
Turns Iron Mask on/off, switching between Iron Mask and using Discrimination Patterns (pg. 34).
A black bar on the display above ‘ON’ indicates Iron Mask is on. A black bar on the display above ‘OFF’ indicates Iron Mask is off.
Iron Mask is a basic Ferrous Discrimination.
MENU
Brings up the MAIN MENU at any stage of detector operation. This allows access to the various settings of the detector (pg. 38).
SHIFT
BUTTONS
Pressing and releasing a shift button next to an icon on the display will select this option.
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Pressing and holding down the shift buttons next to a menu item or pressing and holding any other button for approximately one second will display a Help screen describing this particular function and various other menu options available.
Help Function
Sensitivity Bar (pg. 22)
Introducing the Smartfind™ Detect Screen
Decrease Sensitivity Arrow
Depth Indicator (pg. 23)
Smartfind Discrimination Patte rn (pg. 28)
Battery Life (pg. 72)
Threshold Bar (pg. 24)
Increase Threshold Arrow
Iron Mask On/Off Indicator (pg. 35)
Pinpoint On/Off Indicator (pg. 66)
Sensitivity Valu e
Semi-Automatic Sensitivity Mode Indicator
Decrease Threshold Arrow
When you first turn on the Explorer SE, the Smartfind display will appear and you are able to begin detecting.
Increase Sensitivity Arrow
Full Screen Icon (pg. 26)
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To turn the detector on with Factory Preset settings:
Press and hold
POWER for 2 seconds.
‘FACTORY PRESETS’ will appear briefly on the start-up display.
Turning the detector on with factory presets will restore all settings and the Discrimination Pattern.
To turn the detector on with the previous settings:
Press and release
POWER. This will start
the detector with the previous display and settings from when the detector was last used (eg. Sensitivity, Volume, etc.)
During the start up display, a four-note tune will sound.
Turning the Detector On
The POWER button turns the detector on and off.
The Explorer SE has factory preset settings that have been chosen to suit first-time detectorists. The detector will respond to some targets (low-ferrous metal objects such as silver coins and jewelry) and ignore others (high-ferrous objects such as nails).
It is best to only turn the detector on when outdoors, away from sources of electromagnetic disturbance such as power lines and phone towers. These sources may cause the detector to perform erratically, giving numerous false signals.
There are also many metallic objects inside a house such as nails in the floor, reinforcing in the walls, televisions and other household appliances that might overload the electronics of the detector.
Press and hold
Sweeping t he Coil
The Explorer SE will perform at its best when the coil is kept close and parallel to the ground at all times. This will increase detection depth and response to small objects. Avoid excessive brushing of the coil on the ground, as this may result in false signals and inaccurate Target ID’s.
Practise sweeping the coil over the ground in a side-to-side motion, while walking forward slowly at the end of each sweep. Slightly overlap the previous sweep to ensure full ground coverage. An average sweep speed is four seconds from left to right to left.
A variation in coil height at the end of each swing may also cause confusing sounds and reduce detection depth.
Tar ge ts
Buried metal objects are referred to as targets. Targets are comprised of ferrous and non-ferrous metals. High-ferrous metals are those that contain iron such as steel, nails and some types of coins. Low-ferrous metals are those that have no iron content, such as gold, silver, copper, bronze and aluminium. You may wish to find a range of both low and high ferrous targets.
Examples of common targets:
Desired high-ferrous target - Canadian coin Undesired high- ferrous target - iron nail
Desired low-ferrous target - gold coin Undesired low-ferrous target - pull-tab
Detecting Basics
Sometimes it is possible that a large object close to the coil will overload the detector’s electronics. When this happens, the Explorer SE emits a low ‘warble’ which will repeat until the coil is moved away from the source of the overload.
Overloading is not harmful to the electronics of the detector.
Press and Release
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Before attempting to recover real targets, it is important to understand how to interpret the audio and visual signals of the detector.
Gather a collection of different metal objects, e.g. various coins, gold and silver jewelry, a nail, pull-tab, brass button and aluminium foil.
Take the detector outdoors, away from known electro-magnetic fields or metal objects.
If you are getting signals from a clear patch of ground, there could be buried metal objects. Try finding another area.
Lay objects in a line, suff iciently spaced apart to allow the coil to pass between them, as shown.
Turn the detector on.
The Threshold is the background ‘hum’ produced by the detector. It assists in hearing very small and deep targets. It is also used to help distinguish between desired and undesired targets (blanking).
The detector may also produce False Signals (Noise) when not over the ground (i.e. with the coil motionless). These may not be target signals, but signals caused from the surrounding environment. You can overcome these false signals by performing a Noise Cancel, or by reducing the Sensitivity of the detector (Noise Cancel, pg. 56, Sensitivity, pg. 22).
Sweep the coil across the objects, one at a time, and observe the LCD and the sounds of the detector as it detects each object.
A Simple Detecting Exercise
The Targ et R esp ons e is the sound given by the detector when a target is located and not discriminated (rejected). A target that is highly conductive (e.g. a large silver coin) will generally produce a high-pitched tone and a low conductive target (e.g. foil) generally produces a lower pitched tone. Large targets or targets close to the ground surface emit a louder signal (Sounds, pg. 64).
‘Blanking’ (No Sound)
Threshold
Threshold
Tar get Resp ons e
When a rejected target is detected, the Threshold ‘blanks’ (becomes silent) indicating that a target is located underneath the coil, but has been rejected by you. Blanking is a useful way of distinguishing between desired and undesired targets.
Take note that as the coil is passed over the nail, the Threshold ‘hum’ momentarily disappears, indicating that the object ignored was ferrous.
Detector Sounds
22 23
Sensitivity is the detector’s level of response to its environment and to targets. Sensitivity can be only be adjusted in Smartfind and Digital Display. The Sensitivity bar is a visual indication of the Sensitivity setting.
Sensitivity can be adjusted in both the Semi-automatic mode or Manual mode.
In Semi-Automatic Sensitivity mode, the detector continuously monitors the environmental conditions and will adjust the Sensitivity as close as possible to your specified level of Sensitivity.
In Manual Sensitivity mode the adjustment allows you to control the Sensitivity directly. This is recommended for high trash areas when best results are obtained by sweeping the coil very slowly. Manual Sensitivity is suitable for the beach and very quiet/stable (unmineralised) ground, where the ground conditions do not change as often.
Sensitivity
Modes: Semi-Automatic, Manual Range: 1 to 32 Factory Preset: Semi-Automatic, 22
The clear portion of the depth indicator represents the approximate distance of a target below the coil.
The top of the indicator represents the position of the coil and the bottom represents 300mm (12 inches) from the coil. The bar will be clear if the target is deeper than 12 inches or its depth cannot be accurately gauged.
Try to think of the clear area of the depth indicator as the amount of soil yo u will you have to dig to recover the target.
The depth indicator is also updated for rejected targets.
Depth
To adjust Sensitivity:
Press the top-left shift button to increase Sensitivity.
Press the bottom-left shift button to decrease Sensitivity.
To switch from Semi-Automatic to Manual Sensitivity:
Press the center-left shift button. A line will cycle around the number to indicate that Semi-Automatic Sensitivity is activated.
The detector with a high Sensitivity setting will detect deep targets but may respond to unwanted noise and ground signals. A high Sensitivity setting is recommended for stable conditions with low interference.
The detector with a low Sensitivity setting will ignore unwanted noise and ground signals, but may miss deep targets. A lower Sensitivity setting is preferable for very variable, ‘noisy’ conditions or high trash areas.
Try reducing interference before
reducing Sensitivity. Press the
NOISE
CANCEL shortcut button, or manually
select the least noisy channel (pg. 56).
Maximum setting (32)
Current Sensitivity level (e.g. 22)
Minimum setting (1).
300mm
eg. 120mm
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Threshold is the constant background ‘hum’ produced by the detector.
This control sets the Threshold Volume. By setting the Threshold Volume to the correct level for your hearing, Threshold can highlight the variations in signal response which often indicate detection of a target.
The volume of the Threshold is a personal preference. The correct level will depend on your hearing and associated noise such as wind and machinery.
If the Threshold Volume is high, accepted targets will be harder to distinguish above the Threshold ‘hum’. Small target responses will become difficult to discern as Threshold nears a maximum setting of 40 when there will be a persistently loud Threshold ‘hum’.
Threshold
Range: 0 to 40 Factory Preset: 16
If the Threshold Volume is too low, the slight variation caused by a small or deep target may not be sufficient to hear. Adjusting the level to below an audible level will ensure silent operation but could mask the audio response to small targets.
The factory preset Threshold of 16 will usually emit a constant Threshold hum and is programmed to enable an audible response to most target signals.
Since everyone’s hearing is different, so Minelab suggests that you set a level of Threshold that is a very low, but still audible level for hearing.
Threshold also helps you distinguish the difference between accepted and rejected targets. When a rejected target is detected, the Threshold sound ‘blanks’ (becomes silent) to indicate that a rejected target is underneath the coil.
If the Threshold is se t to 0, small target signals will not produce a signal big enough to go above the Audible Level.
If the Threshold is se t to a positive value, the detector will produce target signals and a Threshold sound.
Inaudible Tar get #1
Tar get #2
Audible Target Response
Threshold
= 0
Tar ge t
Volu me
Tar get #1
Tar get #2
Audible Target Response
Threshold
= 1 4
Tar ge t
Volu me
Audible Level
Audible Level
Maximum setting (40)
Current setting (e.g. 13)
Minimum setting (0)
Adjusting Threshold:
Threshold is increased by pressing the top shift button and decreased by pressing the bottom shift button on the right side of the control panel.
A number corresponding to the Threshold level will appear temporarily between the two adjustment arrows.
Try experimenting with known targets to assist in setting Threshold.
The Threshold may need to be adjusted when connecting and disconnecting the headphones.
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