Blisstool LTC64X User manual

BLISSTOOL
BLISSTOOL
LTC64X
User Guide
version EN201405101504
2007 - 2014 © BLISSTOOL

Contents
1. Features.............................................................................................. 3
2. Introduction.......................................................................................4
3. Presentation....................................................................................... 4
4. Versions............................................................................................... 6
5. Standard pac age...............................................................................7
6. Optional accessories.........................................................................8
6.1. Army bac pac s (Kitbag)..........................................................................................8
6.2. Adapter to charge from car BLISSTOOL CL12V2...............................................8
6.3. Protective cover of dust, moisture and rain BLISSTOOL PTC4R.....................9
6.4. Stereo headphones...............................................................................................10
6.5. Search coils..........................................................................................................11
7. Structure of the metal detector...................................................13
8. Assembling and disassembling of the metal detector.................15
9. Setting, indication and maintenance bodies..................................17
9.1. VOLUME potentiometer.........................................................................................17
9.2. FREQUENCY potentiometer..................................................................................18
9.3. GROUND MODE switch.........................................................................................18
9.4. AUTO ZONES switch..............................................................................................19
9.5. GROUND COARSE potentiometer........................................................................20
9.6. GROUND FINELY potentiometer..........................................................................22
9.7. THRESHOLD potentiometer.................................................................................22
9.8. SILENCER potentiometer.....................................................................................23
9.9. DISCRIMINATOR switch........................................................................................24
9.10. DISCR LEVEL potentiometer..............................................................................26
9.11. DISCR DEPTH potentiometer.............................................................................27
9.12. Loudspea er.........................................................................................................29
9.13. PHONES connector............................................................................................30
9.14. COIL connector...................................................................................................30
9.15. BAT LOW LED.......................................................................................................30
9.16. CHARGE connector............................................................................................30
9.17. GAIN potentiometer............................................................................................31
9.18. TONE potentiometer...........................................................................................32
10. Sensitivity. Mode "Explosion" and mode "Waft". Mode without
audio threshold (silent mode) and mode with audio threshold.......34
11. Setting up of the metal detector and preparation for wor ...35
12. Method of search with the metal detector................................35
13. Battery. Battery charging............................................................37
14. Practical advices........................................................................... 38
15. Warranty support and service.....................................................41
16. Legislation...................................................................................... 41
17. BLISSTOOL..................................................................................... 41
18. Contact information......................................................................41
BLISSTOOL LTC64X - User Guide (version E 201405101504) Page 2 of 42

1. Features
–Base Technologies:
–Induction Balance (IB)
–Very Low Frequency (VLF)
–SuperB Depth = Super BLISST L Depth (SBD) new
–ne of the best deep detecting metal detectors in the world
–Base operating frequency: v1 - 8.5KHz; v2, v2i and v3 - 8.0KHz new
–Adjustable operating frequency (+-60Hz) new
–perating mode: motion
–Sound discrimination of the metals
–Designed to work on all types of terrains
–Extreme deep metal detector designed to work on all types of terrains
–High efficiency even in highly mineralized terrains, terrains with a high content of ore,
terrains dotted with ceramics and terrains dotted with stone plates
–Standard 28cm (11") DD search coil BLISST L DD28SC2
–Additional 38cm (15") DD search coil BLISST L DD38SC2 new
–Built-in LiPo battery 11.1V, 2200mAh with high quality and long life new
–Automatic LiPo battery charger new
–Manual and Automatic ground balance mode
–Coarse and fine settings in manual ground balance mode new
–Switch with three auto ground zones
–High detection speed
–High recovery speed
–Adaptable behavior: can be "noisy" or completely "silent"
–Mode "Explosion" and mode "Waft"
–Adjustable input AC amplification of the signal from the detected object new
–Adjustable frequency of the sound new
–Adjustable silencer of the background sound new
–Adjustable audio threshold
–Adjustable audio volume control
–Discriminator with three independent modes of discrimination new
–Adjustable detection/rejection level of iron, tin-foil and low-grade non-ferrous metals
(usually pollutants)
–Adjustable depth of discrimination
–LED low battery indicator
–6.35mm (1/4") Stereo headphones outlet new
–Single charge operating time: up to 30 working hours
–Consumption: min: 35mA, max: 100mA
–Detachable and adjustable carrier construction made from aluminum and carbon
–Robust and comfortable handle and armrest
–Electronic block from light and robust box made from ABS and aluminum
–Electronic block located under the armrest new
–Electronics fully shielded against electromagnetic interference
–Double shielded against electromagnetic interference cable for the search coil
–Connectors for the search coil with gold-plated pins new
–Connectors for battery charging with gold-plated pins new
–Weight in a complete and ready to use condition: 1.78kg new
–RoHS compliant
–Developed and manufactured in Bulgaria
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–3 Year Worldwide Warranty
2. Introduction
Metal detectors BLISSTOOL LTC64 and BLISSTOOL LTC64X are representatives of the new
generation BLISSTOOL metal detectors from series LTC.
BLISST L LTC64 and BLISST L LTC64X are extended and improved version of the model
BLISST L LTC48X, so that entirely replaces and supplemented it. Their improvements,
compared to BLISST L LTC48X are in any direction, including: design, electronics, depth of
detection, discrimination, stability and sensitivity, setting, indication and maintenance bodies.
In BLISST L LTC64 and BLISST L LTC64X, was implemented the first fully completed
version of the BLISST L technology SuperB Depth = Super BLISST L Depth (SBD), whose
basis was implemented in BLISST L LTC48X, it provides excellent depth of detection, and has
already developed and improved in BLISST L LTC64 and BLISST L LTC64X.
BLISST L LTC64 is the base model of this generation, and BLISST L LTC64X is its extended
version. BLISST L LTC64X contains GAIN and T NE potentiometers, which in BLISST L
LTC64 are not available. GAIN potentiometer is used to adjust the input AC amplification of the
signal from the detected object, and through T NE potentiometer the user can adjust the
frequency of the output sound of the metal detector as desired and adjust the most audible
and pleasant sound to him. The presence of the GAIN potentiometer for BLISST L LTC64X
provide the user with fine-tune of the behavior of the metal detector, which generally permits
BLISST L LTC64X to achieve greater depth of detection, especially in terrains with, from low
to medium mineralization, and opportunity to increase the stability of the metal detector in
high mineralized terrains and terrains with a high content of ore.
3. Presentation
BLISST L LTC64X is a modern professional metal detector, designed to work on all types of
terrains, including highly mineralized terrains, terrains with a high content of ore and highly
contaminated terrains. Has perfect depth and discrimination and is outstanding for its high
quality, easy user’s adjustment and minimal maintenance need. This makes it equally suitable
for beginners and experienced searchers.
As a concept, BLISSTOOL LTC64X is designed:
- to have excellent depth of detection in all conditions!;
- to be used on any type of terrains;
- to can change its behavior: whether to be "noisy" or completely "silent"; new
- to have expanded opportunities for setting of the discrimination and ground balance; new
- to successfully detect coin placed into ceramics, stones and rocks;
- to successfully detect coins in highly mineralized terrains;
- to have good depth of detection, not only to copper but also to silver and gold objects;
- to have high detection speed and high recovery speed and at the same time to have good
stability. new
eal, metal detector BLISSTOOL LTC64X is one of the best deep detecting metal detectors in the
world, especially when it comes to metal detectors type induction balance.
BLISST L LTC64X is made of high quality, RoHS compliant and fully shielded against
electromagnetic interference electronics, and high quality components such as: light and
robust detachable carrier construction made of aluminum and carbon; electronic block
contained in a light and robust box made from ABS and aluminum; standard 28 cm (11") DD
waterproof search coil, double shielded against electromagnetic interference cable for the
search coil; connectors for the search coil with gold-plated pins; connectors for battery
charging with gold-plated pins. All this ensures its smooth operation regardless of the
temperature changes and the other environmental characteristics, and durability lined with a 3
year worldwide warranty.
Its electronics and rechargeable battery, are installed in the electronic block located under the
armrest. This design allows for improved mass balance to handle, and allows for continuous
use without significant user fatigue. In a complete, ready to use condition, BLISST L LTC64X
is weighing 1.78kg.
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Standard, BLISST L LTC64X is equipped with a LiPo battery 11.1V, 2200mAh, which is
characterized by high quality, low weight and long life. In order to recharge it, in the metal
detector standard package is included an automatic LiPo battery charger.
BLISSTOOL LTC64X is available in four versions: v1 - standard version, v2 - version specially
adapted for heavy field conditions, v2i - improved version of v2, and v3 – top version with extreme
performance.
Its operating frequency, by potentiometer FREQUENCY, can be adjusted (+-60Hz), to avoid
external interferences such as: interference from other close working metal detector with the
same or similar operating frequency; and powerful industrial interferences. Adjustable by
potentiometer T NE, is the frequency of the output sound of the metal detector.
Given its professional character, BLISST L LTC64X has many options for adjust to the
realization of its universality and getting the most of its opportunities. If the user is a beginner
and do not understand for what serve the appropriate potentiometer or switch, it is sufficient
to maintain it in the recommended, in the user guide, level, whereby relatively easy to make
the metal detector in the regime close to optimal, but later, when the user gain experience in
working with the metal detector, to optimize its behavior to a specific terrains by fine
adjustment of the respective potentiometers and switches.
Its behavior can be fully configured according to the wishes of the user and the characteristics
of the terrain. BLISST L LTC64X can be "noisy" or completely "silent." Particular behavior is
set by appropriate adjustment of the metal detector, notably through appropriate adjustment
of the potentiometers which largely determine its sensitivity: potentiometer GAIN which
serving for setup of the input AC amplification of the signal from the detected object;
potentiometer THRESH LD which serving for setup of the sound threshold; potentiometer
SILENCER which serving for setup of degree of suppression of the background sound and for
stabilization of the audio threshold.
BLISST L LTC64X has high detection speed and high recovery speed. This ensures its
stability regardless of the speed of search and allows the efficient detection of deeper objects
located near to the iron.
It features manual and automatic ground balance mode, as in automatic mode is available
additional switch with three auto ground zones for soils with low, medium and high
mineralization. These preset zones make use of the metal detector easily and effectively.
Its discrimination is adjusts by: DISCRIMINAT R switch that provides three independent
modes of discrimination and allow optimization of its behavior, and potentiometers DISCR
LEVEL and DISCR DEPTH, which enable: set of detection/rejection level of iron, tin-foil and
low-grade non-ferrous metals (usually pollutants) and set the depth of discrimination. All this
allows to achieve optimum setting of the metal detector at contaminated terrains, terrains with
hot rocks and mineralized terrains, and are a prerequisite for even better results.
Its audio discrimination, thanks to the perfect human abilities through their hearing to perceive
and analyze in detail the sound signals, is the ideal solution for instant detection, analysis and
recognition even and of the weakest signals by deeply buried objects.
Before using your BLISSTOOL LTC64X for the first time, we recommend you to read detailed this
user guide, in order to optimally use all its capabilities.
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4. Versions
BLISSTOOL LTC64X is available in four versions:
–version 1 (LTC64X v1, LTC64X version 1);
–version 2 (LTC64X v2, LTC64X version 2);
–version 2i (LTC64X v2i, LTC64X version 2i);
–version 3 ( LTC64X v3, LTC64X version 3).
BLISSTOOL LTC64X version is marked on the electronic block, against the model of the metal
detector.
LTC64X v1 is the standard version.
LTC64X v2 is a version specially adapted for heavy field conditions.
LTC64X v2i is an improved version of v2.
LTC64X v3 is the top version with extreme performance.
LTC64X v is better than v1 with that this LTC64X v is optimized to work on:
- highly contaminated terrains;
- highly mineralized terrains;
- terrains with a high content of ore.
f the above described terrains, LTC64X v1 also works, but LTC64X v2 is additional optimized
for such terrains.
LTC64X v i is better than v , with that this at LTC64X v i has improved:
- the depth of detection;
- the sensitivity to very small metal objects.
LTC64X v3 is better than v i, with that this LTC64X v3 is:
- with extreme improved depth of detection;
- with extreme improved sensitivity to very small metal objects;
- optimized for Gold Nugget prospecting;
- with extended setup of the sensitivity and the behavior;
- with capable of successfully competing with multi-period pulse induction metal detectors. In
comparison with them, has a similar depth of detection, greater universality and excellent
discrimination.
In the standard package, the metal detectors are equipped with 28 cm (11") DD search coil
BLISST L DD28SC2, but as an optional accessory is available and 38 cm (15") DD search
coil.
In practice, the differences in the depth of detection between the different versions,
in soil with greater than average degree of mineralization, are approximately the
following:
For LTC64X v i vs LTC64X v :
- Compared with v2 with 28 cm (11") DD search coil, v2i with 28 cm (11") DD search coil has
from 3 to 5 cm greater depth of detection for coins. Most often about 3 cm;
- Compared with v2 with 28 cm (11") DD search coil, v2i with 28 cm (11") DD search coil has
from 5 to 10 cm greater depth of detection for small metal objects with size greater than that
of the coins. Most often about 6 cm;
- Compared with v2 with 28 cm (11") DD search coil, v2i with 28 cm (11") DD search coil has
from 15 to 30 cm greater depth of detection for large metal objects.
For LTC64X v3 vs LTC64X v :
- Compared with v2 with 28 cm (11") DD search coil, v3 with 28 cm (11") DD search coil has
BLISSTOOL LTC64X - User Guide (version E 201405101504) Page 6 of 42

from 4 to 8 cm greater depth of detection for coins. Most often about 6 cm;
- Compared with v2 with 28 cm (11") DD search coil, v3 with 28 cm (11") DD search coil has
from 8 to 16 cm greater depth of detection for small metal objects with size greater than that
of the coins. Most often about 12 cm;
- Compared with v2 with 28 cm (11") DD search coil, v3 with 28 cm (11") DD search coil has
from 20 to 40 cm greater depth of detection for large metal objects.
For LTC64X with 8 cm (11") DD search coil vs LTC64X with 38 cm (15") DD search
coil, applies to all versions (v1, v , v i, v3):
- Compared with LTC64X with 28 cm (11") DD search coil, LTC64X with 38 cm (15") DD search
coil has a greater depth of detection, from several centimeters for coins, to several tens of
centimeters for large metal objects.
Between v2, v2i and v3, v2i is similar of v2, while v3 is quite different. v3 is our newest and
best development. Compared to v2, the electronics has changed considerably. The changes are
complex, not just in one module. In v3, in highly mineralized terrains, especially at high levels
of potentiometer GAIN, the audio threshold automatically fading in order to maintain stability
(the depth of detection remains the same).
Which version is right for you to judge yourself according to your specific needs.
Our additional guide recommendations and clarification for you are:
1/ In terms of the depth of detection:
–In practice, when properly adjusted, v1 and v2 have the same depth of detection;
–v2i has better depth of detection of v1 and v2;
–v3 has better depth of detection of v1, v2 and v2i.
/ In terms of stability:
–At user setup for top performance: LTC64X v2 is more stable than v1, v2i and v3.
–At adequate user setup, according to the field conditions, all versions are equally stable.
3/ In terms of the terrain and the universality:
- All versions are designed to be universal, ie with adequate user setup, all versions work well
on any type of terrains.
5. Standard package
1. Metal detector BLISST L LTC64X with 28cm (11") DD search coil BLISST L DD28SC2
and LiPo battery 11.1V, 2200mAh
. Automatic LiPo battery charger
3. User guide
4. Warranty card
5. Invoice
6. Transport and storage box
7. 3 Year Worldwide Warranty
8. Free Delivery by courier
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6. Optional accessories
As described below additional accessories can be purchased additionally, i.e. they
are not included in the standard package of the metal detector.
6.1. Army backpacks (Kitbag)
The army backpacks is a soft backpack type bag in
which can transport metal detector BLISSTOOL
LTC64X.
The army backpacks carried as a rucksack on your
back.
BLISST L LTC64X be placed in the army
backpacks after disassembling. For this purpose, its
detachable carrier construction is divided into its
three major parts through the unscrewed of the
small and large fixing ring.
Dimensions in unfolded state: rectangle with a
width of 46 cm and a height of 68 cm.
6.2. Adapter to charge from car BLISSTOOL CL12V2
BLISSTOOL CL12V2 is an adapter that allows the built
LiPo battery of BLISSTOOL LTC64X to be charged by
power from the car using a standard 12V car cigarette
lighter connector.
To this end:
1/ The input of BLISST L CL12V2 must be
included into a standard 12V car cigarette lighter
connector, available in each car, and its output
includes to the input of the automatic LiPo battery
charger, available in the standard package of
BLISST L LTC64X, which provided its the
necessary power to charge a LiPo battery;
/ The output of automatic LiPo battery charger,
through available in the standard package of
BLISST L LTC64X, cable adapter, must be
included into the connector CHARGE available on
the back panel of the electronic block of BLISST L
LTC64X.
Through the use of BLISST L CL12V2, is eliminated the need to use of standard ~100-
240V/DC12V power adapter, used for charging of the LiPo battery through ~100-240V
network, and are achieve greater autonomy at work with BLISST L LTC64X.
In some models cars, to ensure the power supply through 12V car cigarette lighter connector, the
cars need to be "of contact". In the presence of power, the green LED of BLISSTOOL CL12V2 lights
permanently.
BLISST L CL12V2 has a cable with 2 meters length, which allows in charge, the automatic
LiPo battery charger and the metal detector to be located in a safe and comfortable place in
the car. The charging can be done and during working car engine and during movement of the
car.
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6.3. Protective cover of dust, moisture and rain BLISSTOOL
PTC4R
BLISSTOOL PTC4 is a protective cover of dust,
moisture and rain of the electronic block of metal
detector BLISSTOOL LTC64X.
For this purpose, BLISST L PTC4R must be put
on the box with the electronic block of the metal
detector.
To its repeated insertion and removal, some sides
(panels) of BLISST L PTC4R are assembled with
Velcro tape type.
BLISST L PTC4R is made from strong, flexible
and waterproof materials such as leather, and
transparent glass-like material that provides
visibility into areas in which are available setting,
indication and maintenance bodies of the metal
detector.
BLISSTOOL PTC4 protects the electronic block of
the metal detector from scratch, shock, dust,
moisture and rain: on terrains strewn with sharp
stones; on sandy terrain; on muddy terrain; in the
presence of dew; when rain (drizzle) light rain; in
snow conditions; when it rains little snow.
Before insertion of the protective cover
BLISST L PTC4R on the box with the electronic
block, the user must to set the metal detector to
the respective terrain. This is necessary because
with fitted protective cover, the user does not have
direct access to the potentiometers and the
switches to adjust the metal detector.
n the front panel of BLISST L PTC4R, is
available hole with cap, which ensures access to
the potentiometer V LUME, to turn-on and to
turn-off the metal detector and to set the desired
from the user audio volume, without the need of
removing the protective cover.
n the back panel of BLISST L PTC4R are
available: a hole for plug to connector C IL of the
jack of the search coil; a hole with cap for plug to
connector PH NES of the jack of the headphones
(if the user use any); a hole with cap through
which is heard the sound from the loudspeaker.
The putting of BLISST L PTC4R on the box with
the electronic block of the metal detector, is made
by pulled of the protective cover in the direction
from the front to the back panel of the electronic
block. For this purpose, BLISST L PTC4R must
be in disassembled condition, ie its Velcro tape
type, by which are connected its various sides
(panels), must be posted in advance.
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6.4. Stereo headphones
6.4.1. Stereo headphones PHILIPS SHP1900 B
Introduction
PHILIPS SHP1900 B are high quality full-size stereo
headphones with lightweight construction and sleek
design.
Features
- Frequency range: 20 Hz - 20 000 Hz
- Impedance: 32 hm
- Sensitivity: 98 dB
- Maximum power input: 500 mW
- Driver unit: 40 mm
- Plug type: 6.35mm (1/4") stereo new
- Cable connection: Unilateral
- Cable length: 2 m
- Weight: 195 g
- Volume control: No
6.4.2. Stereo headphones PLEOMAX PHS-2000 B
Introduction
PLEOMAX PHS-2000 B are high quality stereo
headphones with lightweight construction and
volume control.
Features
- Frequency range: 20 Hz - 20 000 Hz
- Impedance: 32 hm
- Sensitivity: 110 dB
- Maximum power input: 30 mW
- Driver unit: 36 mm
- Plug type: 6.35mm (1/4") stereo new
- Cable connection: Unilateral
- Cable length: 2 m
- Weight: 75 g
- Volume control: Yes
6.4.3. Adapter for headphones BLISSTOOL P635S35
BLISSTOOL P635S35 is a headphones adapter from
6.35mm (1/4") stereo Jack plug to 3.5mm Jack
socket.
Through it, to a connector PHONES of BLISSTOOL
LTC64X, may be included stereo headphones with
3.5mm stereo Jack plug.
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6.5. Search coils
BLISST L search coils for metal detector BLISST L LTC64X, have the following
characteristics:
/1/ Constructed of robust and temperature stable construction of plastic and epoxy resin and
have excellent electrical and mechanical characteristics.
/ / Completely waterproof.
/3/ They have high quality:
- encapsulated and shielded connector with gold-plated pins new
- double shielded against electromagnetic interference cable new
6.5.1. 28 cm (11") DD search coil BLISSTOOL DD28SC2
Description
BLISSTOOL DD28SC2 represents a waterproof
search coil type DD (double D) with a diameter of 28
cm (11").
Characterized by a very good balance between the
parameters: depth of detection and discrimination.
BLISST L DD28SC2 is the standard search coil
with which is equipped metal detector BLISST L
LTC64X, ie it is included in the standard package
of the metal detector.
6.5.2. Lower connecting rod
Description
The lower connecting rod is made of carbon fiber to
not interfere with the normal operation of the metal
detector. The upper part of it is connected by small
fixing ring to the intermediate connecting rod - enter
into it, and at the bottom part it end with a plastic
nozzle, which is connected to the search coil.
A number of lower connecting rod is included in
the standard package of metal detector
BLISST L LTC64X and to it is attached the
included in the package standard 28 cm (11") DD
search coil BLISST L DD28SC2.
Lower connecting rod of carbon fiber with a
plastic nozzle in complete with emollient and
fixed rubbers type washer, that protect the
ears of the search coil from deformation and
breakage when tightening.
Lower connecting rod attached to a 8 cm
(11") DD search coil BLISSTOOL DD 8SC by
the available in the complete with the search
coil, plastic bolt and nut.
The lower connecting rod is available separately as
an optional accessory, to be able to be purchased
in a set with additional search coil, for example in
set with a different size search coil, when the
client wishes. In this way, each of the search coil
purchased by the customer, can be equipped with
its own lower connecting rod, in order to easily
mount the metal detector if necessary. This,
avoids the inconvenience, of a single number of a
lower connecting rod to be moved frequently from
one to another search coil.
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6.5.3. 38 cm (15") DD search BLISSTOOL DD38SC2
Description
BLISSTOOL DD38SC2 represents a waterproof
search coil type DD (Double D) with a diameter of 38
cm (15").
Characterized by an excellent depth of detection.
Compared with the standard 28 cm (11") DD
search coil BLISST L DD28SC2, the depth of
detection of BLISST L DD38SC2 is greater with
several centimeters for coins, and with several
tens of centimeters for larger metal objects.
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7. Structure of the metal detector
BLISSTOOL LTC64X consists of the following basic elements:
1. Electronic block with setting, indication and maintenance bodies
. Armrest
3. Carrier rod
4. Handle
5. Large fixing ring
6. Intermediate connecting rod
7. Small fixing ring
8. Lower connecting rod
9. Plastic bolt and nut
10. Search coil
Fig.1 / Construction of metal detector BLISSTOOL LTC64X
For easy assembling and disassembling
of the metal detector, in the standard
package:
- the carrier rod with the large fixing
ring, the electronic block, the handle
and the armrest are combined in a
single component;
- the small fixing ring is mounted on
the intermediate connecting rod;
- the lower connecting rod and the
search coil are assembled together with
the plastic bolt and nut.
Fig. / Components of metal detector BLISSTOOL LTC64X
BLISSTOOL LTC64X - User Guide (version E 201405101504) Page 13 of 42
8 6
1
10
3
7
9
5
4

The carrier rod is made from aluminum pipe. The large fixing ring that is mounted on its lower
end is used for connecting the pipe with the intermediate connecting rod.
The handle is part of the carrier rod and is coated with soft and solid foam.
For better stability, the armrest is made from aluminum. It has a strap for better fixation to the
elbow during a search.
Under the armrest is mounted the electronic block. It consists of a plastic box with aluminum
panels, in which are mounted the electronics and the LiPo battery of the metal detector. n the
front panel, back panel and the lid of the electronic block are mounted the setting, indication
and maintenance bodies.
The intermediate connecting rod is made from aluminum pipe. At its upper end it is connected
by the large fixing ring to the carrier rod – it fits into it, while at its lower end it is connected to
the lower connecting rod by the small fixing ring.
The lower connecting rod is made from carbon, so that it does not interfere with the normal
working mode of the metal detector. At its upper end it is connected by the small fixing ring to
the intermediate connecting rod – it fits into it, while at its lower part ends with a plastic
nozzle by which is connected to the search coil.
To not affect the intermediate connecting rod on the work of the metal detector, because it is
made from aluminum, ie metal, it is recommended that the lower connecting rod to be
inserted in the intermediate connecting rod to a situation in which remain at least 20-30
centimeters away from the top of the search coil to the small fixing ring.
To quickly and easily set the desired from the user length of the carrier construction, the fixed
mechanisms type bud, available on the lower connecting rod and on the intermediate connecting
rod, are inserts respectively on the holes located at a different levels on the intermediate connecting
rod and on the carrier rod.
The search coil is connected to the plastic nozzle of lower connecting rod via the plastic bolt
and nut. Between the ears of the search coil and the plastic nozzle of the lower connecting rod,
put the included in the standard package emollient and fixed rubber type washer, which
prevent the ears of the search coil from deformation and breakage when tightening. Thus, the
search coil can be installed and removed repeatedly from the lower connecting rod.
The search coil, via the connector of the connecting shielded cable, is connecting to the connector
COIL mounted on the back panel of the electronic block.
If necessary to change the position of the search coil to the lower connecting rod (change the
working angle during working with the metal detector or folding to carry and transport), is
necessary to loose coupling fixing by a plastic bolt and nut and after the new setting, it can be
tight to be fix the search coil in the new position.
The changing of the working angle in tight situation can lead to breakage of the ears of the search
coil, deformation of the ears and the search coil or a fatal frustration of the search coil and changes
of its parameters.
When changing the working angle of the search coil to the lower connecting rod, must be
monitored for the presence of an advance of the bottom of the connecting shielded cable of the
search coil to keep it stretched too much as this can cause damage its.
ecommended always to provide a small advance of the connecting shielded cable of the search coil
in its lower part, just above the nozzle during which it comes out of the search coil.
The coil cable ends with a connector and there is a single correct position for it so that it could
be plugged in the connector C IL, which lies on the back panel of the electronic block. In this
position, the hollow cursor of the cable connector falls in with flange cursor of the connector
C IL, and when inserted, the cable connector enters into the connector C IL at a depth of
around 10 mm. After the cable connector is plugged in, it is screwed to the connector C IL by
the means of the available metal stopping nut, used as a shield.
The incorrect insertion and/or the application of a brute force while incorrectly inserting the
connector of the search coil could lead to damaging of the metal detector.
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8. Assembling and disassembling of the metal detector
The metal detector BLISSTOOL LTC64X is assembled in the following sequence:
1. The upper part of the lower connecting rod is attached to the lower part of intermediate
connecting rod via the small fixing ring, and adjusted at the appropriate length.
It is recommended that the mounting of the lower connecting rod to the intermediate
connecting rod should be carried out, following the sequence below:
- the small fixing ring has to be unscrewed loose from the intermediate connecting rod and put
on the lower connecting rod;
- the lower connecting rod is inserted in the intermediate connecting rod at the appropriate
length;
- the small fixing ring is tightened until it is fixed.
. The upper part of the intermediate connecting rod is attached to the carrier rod via the
large fixing ring, and adjusted at the appropriate height.
It is recommended that the mounting of the intermediate connecting rod to the carrier rod
should be carried out, following the sequence below:
- the large fixing ring has to be unscrewed loose from the carrier rod and put on the
intermediate connecting rod;
- the intermediate connecting rod is inserted in the carrier rod at the appropriate length;
- the large fixing ring is tightened until it is fixed.
3. The search coil has to be adjusted horizontally against the ground surface, while the user is
in an upright (working) position and is holding the metal detector by the handle.
This adjustment is possible, if the plastic bolt and nut used for assembling the search coil with
the lower connecting rod are not tightly fastened.
4. The connecting shielded cable of the search coil is winded evenly and spirally up the lower
connecting rod, the intermediate connecting rod and the carrier rod up to the handle, provides
advance of the cable around the handle, as finally, the end connector of the cable is plugged in
and tightened on the connector C IL that lies on the back panel of the electronic block. The
plugging in and out of the cable connector is done while the metal detector is switched off
(V LUME potentiometer is turned in " FF" position (Fig.4)). Тhe cable is fixed through patches
type velcro included in the standard package.
The cable, at its lower end near the search coil, has to be slightly loose, so that it is not damaged
when the search coil has been bent against the lower connecting rod, for example when search or
when the device is folded for carrying and transporting.
IMPO TANT: The cable of the BLISSTOOL search coil is double shielded against electromagnetic
interferences. The cord length is about 1.6 meters, which combined with its twin aluminum screen,
makes it heavy. In this regard, in order to eliminate false signals and prevent damage of the
connector on the cable and of connector COIL, is necessarily, the shielded connecting cable of the
search coil to be wound tight spiral with a pitch about 12 cm along the length of the supporting
structure up to the handle and to be fixed to the supporting structure of the metal detector, a total of
three places: under the handle, over the handle and at the base of the lower connecting rod.
For fixing of the shielded connecting cable of the search coil, are used the included in the standard
package locking tape type Velcro.
The correct winding and fixing of the cable is shown in Fig.3 available below.
The purpose of winding of the cable tight spiral with a pitch about 12 cm along the length of the
supporting structure up to the handle, is the cable to be fixed during the search with the metal
detector.
If the cable is loose and moves during the search, this will generate false signals, since the metal
detector will detect the cable moving towards the search coil (more precisely its metal aluminum
screens).
For the same reason, after winding, the cable must be fixed at three places with Velcro patches:
fixation in the base of the lower connecting rod, to ensure the advance of the cable provided after
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exiting from the cable connection of the search coil, so to allow possibility for safe change the angle
between the search coil and the lower connecting rod; fixation above and below the handle to ensure
advance of the cable around the handle, so that it does not interfere when the user grip the metal
detector for the handle, and also to immobilize the cable against the connector of the cable and
connector COIL.
The unsecured heavy cable above and below the handle, causes movement of the connector of the
cable against connector COIL, and this creates slack in their contact leads, which creates false
signals.
Therefore, to avoid such problems, is mandatory, whenever, the cable to be wound and fixed exactly
as described here. Any user who ignore this advice, inevitably dooms the metal detector BLISSTOOL
LTC64X of damage and faces with false signals caused by the failure of the herein described
recommendations.
Fig.3 / Correct folding and securing of the cable of the search coil of BLISSTOOL LTC64X
Description of the designated positions of Fig.3:
1 - Secured advance of the cable at the base of the lower connecting rod, just above the
nozzle;
- Fixed cable, with velcro type tape, at the base of the lower connecting rod;
3 - Correct: tight spiral wound cable;
4 - Incorrect: loosely spiral wound cable;
5 - Fixed cable, with velcro type tape, over the handle;
6 - Secured advance of the cable around the handle;
7 - Fixed cable, with velcro type tape, under the handle.
The disassembling of the metal detector is carried in a reversed order.
BLISSTOOL LTC64X - User Guide (version E 201405101504) Page 16 of 42
5
3
7
4
6
1

9. Setting, indication and maintenance bodies
The setting, indication and maintenance bodies are mounted on the front panel, back panel and on
the lid of the electronic block (Fig.4) of BLISSTOOL LTC64X.
Setting, indication and maintenance bodies of BLISSTOOL LTC64X
On the front panel of the electronic block: On the back panel of the electronic block:
- V LUME potentiometer - C IL connector
- FREQUENCY potentiometer new - CHARGE connector
- DISCR LEVEL potentiometer - Loudspeaker
- DISCR DEPTH potentiometer - BAT L W LED
- GAIN potentiometer new - PH NES connector
- T NE potentiometer new
- GR UND M DE switch On the lid of the electronic block:
- AUT Z NES switch - THRESH LD potentiometer
- DISCRIMINAT R switch new - SILENCER potentiometer new
- GR UND C ARSE potentiometer new
- GR UND FINELY potentiometer new
To optimally use the capabilities of your BLISST L LTC64X, we recommend that you explore
in detail all its bodies, using as a basis, a detailed description of them available below.
Given its professional character, BLISSTOOL LTC64X has many options for adjust to the realization
of its universality and getting the most of its opportunities.
If the user is a beginner and do not understand for what serve the appropriate potentiometer or
switch, it is sufficient to maintain it in the recommended, in the user guide, level, whereby relatively
easy to make the metal detector in the regime close to optimal, but later, when the user gain
experience in working with the metal detector, to optimize its behavior to a specific terrains by fine
adjustment of the respective potentiometers and switches.
Description of the various bodies:
9.1. VOLUME potentiometer
The VOLUME potentiometer serves as the on/off the metal detector (level
"OFF") and to regulate the audio volume (levels from "1" to "MAX").
For optimal performance, should be placed at the level at which the the
sound produced by the metal detector is a pleasant for listening, ie is not
very loud, nor quiet.
The recommended levels for VOLUME potentiometer are from level "3" to
level "8".
The use of the metal detector at higher levels of V LUME potentiometer, provides better
audibility of the sound produced by the metal detector, but at the same time increasing the
consumption of power from the LiPo battery of the metal detector and wear it for a short time.
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9.2. FREQUE CY potentiometer
The F EQUENCY potentiometer serves to change the operating frequency of
the metal detector in range +-60Hz, in order to avoid external interferences
such as: interference from other close working metal detector with the same
or similar operating frequency; and powerful industrial interferences.
The presence of external interferences is expressed as: onset of
instability of the audio threshold of the metal detector, marked and
continuous increase in its instability, or total collapse of the audio
threshold.
The recommended level for F EQUENCY potentiometer is level "MAX", or levels close to level
"MAX".
In the level "MAX" of the F EQUENCY potentiometer, the system for frequency adjustment is off and
the metal detector operate at its base operating frequency.
In the occurrence of instability in the audio threshold, with a character as described above, in order
to smooth the audio threshold and stabilization of the metal detector, is required by F EQUENCY
potentiometer to change the operating frequency of the metal detector.
Under the same conditions, when connected to the metal detector of another, additional, BLISSTOOL
search coil, other than the standard 28 cm (11") DD search coil BLISSTOOL DD28SC2, with which the
metal detector is equipped in the standard package, the best base setting of potentiometer
F EQUENCY may be different than the recommended for the standard package level "MAX". For the
new search coil, the best base setting of potentiometer F EQUENCY is where the metal detector
detects with a clear rich sound the weak signals from deeply buried metal objects. Accordingly, the
best setting is a combination of individual settings of potentiometer F EQUENCY and potentiometer
TONE.
The change in the operating frequency of the metal detector is done by adjusting the
FREQUENCY potentiometer to any of the levels at level "9" to level "MIN". Choose that level at
which the audio threshold of the metal detector regains its stability.
Because their primary function, the setting of the F EQUENCY potentiometer affect to the other
settings of the metal detector and especially on its ground balance. It is desirable for this setting to
be done before the rest of the metal detector settings, or after any change of the F EQUENCY
potentiometer, to be done complete setup of the metal detector.
9.3. GROU D MODE switch
The G OUND MODE switch serves for switching between the two working
modes of the metal detector:
MAN: Manual ground balance
AUTO: Automatic ground balance
The recommended positions for G OUND MODE switch are: position "AUTO" for beginners and
position "MAN" for experienced users.
Manual ground balance mode and Automatic ground balance mode relate to the chosen
technology for eliminating the ground (terrain) interference on the metal detector’s work.
The ground (terrain) interference usually causes instability of the metal detector and false signal
registration (during the search while the search coil is moving, the metal detector is making sounds
without real to has detected metal object).
When working with a manual ground balance mode (GR UND M DE switch turned to the
"MAN" position), the ground interference is eliminated by manual adjustment of the metal
detector by the user, by following the procedure given in the description of the GR UND
C ARSE and GR UND FINELY potentiometers, available below.
Manual ground balance mode is appropriate for terrains with homogeneous soil, where the metal
detector would reach its full potential by a fine manual adjustment.
When working with an automatic ground balance mode (GR UND M DE switch turned to the
"AUT " position), the metal detector’s electronics automatically eliminates the ground
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interference and there is no further need for manual balance adjusting by the GR UND
C ARSE and GR UND FINELY potentiometers from the user, and it is not important in what
levels are set these potentiometers.
Automatic ground balance mode is appropriate for terrains with a heterogeneous soil.
In order to optimize and achieve the best possible balance, the automatic ground balance
mode is divided into three ground zones with a small area of correlation. They are selected by
an AUT Z NES switch as described below.
9.4. AUTO ZO ES switch
The AUTO ZONES switch serves to set one of the three available automatic
ground zones at work in automatic ground balance working mode.
The individual zones are numbered as zones "1", "2" and "3", which
corresponds to the following soil type:
- Zone "1": soils with black and/or negative mineralization;
- Zone "2": not mineralized or weakly mineralized soils;
- Zone "3": soils with a color and/or positive mineralization.
The recommended position of switch AUTO ZONES is the "3" (recommended
position for beginners).
Most often works in Zone "1".
In most cases:
- Zone "1" is suitable for: terrains strewn with ceramic containing impurities of ferrous metals;
terrains dotted with stone plates with negative mineralization; soil, sand, stones and rocks with black
and/or negative mineralization;
- Zone "2" is suitable for: not mineralized or weakly mineralized soils; loose soils with low density;
"light" soils; clean terrains;
- Zone "3" is suitable for: soil, sand, stones and rocks with color and/or positive mineralization;
highly mineralized terrains and terrains with a high content of ore, terrains with a high content of hot
rocks, terrains with high content of rusty black metals such as, but not limited to: small heavily
corroded irons and steel, small pieces of wire, heavily corroded pieces of sheet metal, small iron
nails and steel nails, tack, slag and other ancient and contemporary pollutants.
To determine which of the three zones eliminates the best influence of soil is
necessary:
- to be chosen the auto ground balance mode (GR UND M DE switch turned to "AUT "
position);
- the DISCR LEVEL potentiometer to be set at a level "0";
- the THRESH LD potentiometer to be set at a level, just before the level where the metal
detector starts slightly zoom sound made (issued torn sound, buzzing, whiz) or one or two
levels before the level of zoom (recommended for beginners searchers).
Then is done vertical (up-down) movement of the search coil ranging from 2-3 cm to 20-25 cm
above the terrain and simultaneously AUT Z NES switch, is switches alternately between the
three available positions (zones).
Most appropriate for use is the zone, where in the described manner of movement of the search coil,
the metal detector does not beeps or issue possible weak sound, or at least the pre-set audio
threshold level did not change significantly.
In mineralized terrains, if has a strong responsive signal from the terrain and selection of most
appropriate auto ground zone is difficult or the user has small practical experience, is
recommended the THRESH LD potentiometer to return with one or two levels back at the level
where the metal detector starts to slightly zoom, then proceeding to the described above
method of choice of zone. In addition, in order to reduce the response signal from the ground,
can be set in advance desired level of discrimination (DISCR LEVEL potentiometer from level
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"0" is placed in the desired operating level) and then performed the described above choice of
zone.
For soils containing large amounts of salts, in moist and wet soils, in clay soils, when searching
on the beach and searching in salt water, if the signal from the ground can not be ignored
entirely, look for the setting in which in the horizontal (left-right) movement of the search coil
of about 2-5 cm above the ground, have not drastic false signals, ie the metal detector does
not sound like from a detected metal object in the absence of a real one. In such situations, it
is usually necessary potentiometers THRESH LD and GAIN to be set at lower levels, as instead
of drastically reducing of the GAIN potentiometer is recommended reduction of the
THRESH LD potentiometer.
Described above, vertical movement of the search coil, to the choice of most appropriate auto
ground zone, should be carried at a place, with no metal objects near to the search coil, ie the piece
of land on which moves the search coil should not contain metal objects.
therwise, they would interfere the selection process of zone, therefore can not be selected
most appropriate auto ground zone. Whether the terrain is clean, is easily established, when
the search coil is moved horizontally above the terrain, ie without changing its distance
towards the ground. When there are no metal objects, the predefined from the THRESH LD
potentiometer sound would not be changed.
After the choosing of auto ground zone has been finished, the GR UND M DE switch remains
in "AUT " position (auto ground balance), while the DISCR LEVEL and THRESH LD
potentiometers are turned to the desired from the user levels.
When changing the terrain with another, significantly different from the previous (changing the soil
characteristics), to the metal detector remain stable, necessary as described above, again to assess
which is most suitable in the case auto ground zone.
9.5. GROU D COARSE potentiometer
The G OUND COA SE potentiometer (old name: G OUND UDELY) serves
as a coarse (base, fast) setting of the ground balance in a manual ground
balance working mode, ie for a base eliminate of the ground effect at work in a
manual ground balance working mode.
The G OUND COA SE potentiometer is used in combination with G OUND
FINELY potentiometer.
The recommended level for G OUND COA SE potentiometer is level "5" to
about level "8".
Most often works at level around "5".
For manual adjustment of the ground balance is needed:
- to be chosen the manual ground balance mode (GR UND M DE switch turned to MAN"
position);
- the DISCR LEVEL potentiometer to be set at a level "0";
- the THRESH LD potentiometer to be turned at a level, just before the level where the metal
detector starts slightly zoom sound made (issued torn sound, buzzing, whiz) or one or two
levels before the level of zoom (recommended for beginners searchers);
- the GR UND FINELY potentiometer, to be set at a middle position, ie at a level "5".
Then is done vertical (up-down) movement of the search coil ranging from 2-3 cm to 20-25 cm
above the terrain, simultaneously with turning the GR UND C ARSE potentiometer. At some
levels of the GR UND C ARSE potentiometer, the sound is louder when the search coil is near
the ground, while at others the sound is louder when the search coil is high above the ground.
The balancing is actually finding the level (position) of the G OUND COA SE potentiometer, in
which in the described manner of movement of the search coil, the metal detector does not beeps or
issue possible weak sound, or at least the pre-set audio threshold level did not change significantly.
After the base balancing by G OUND COA SE potentiometer, if necessary, the metal detector can
be further fine balancing by G OUND FINELY potentiometer and described above vertically (up and
down) movement of the search coil.
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