KTS-Electronic PULSE AR III User manual

PULSE AR III
Metal Detector on
the basis of pulse
induction
Instruction Manual
KTS-Electronic
Germany

Table of Content
I. Introduction..................................................................................3
II. Volume of delivery .......................................................................3
III. Installation....................................................................................3
IV. Appropriate handling...................................................................4
V. Adjustment ...................................................................................4
VI. Application of the RESET-button................................................5
VII. Indication of metal .......................................................................5
VIII. Search process ............................................................................6
IX. Electronic unit (front side)...........................................................6
X. Electronic unit (back)...................................................................8
XI. Usage of appropriate searchcoils...............................................9
XII. Accumulator and battery charger.............................................11
XIII. Technical data............................................................................12
XIV. Error signals...............................................................................12
XV. Care.............................................................................................13
XVI. Legal notice................................................................................13
XVII. Warranty .....................................................................................14
XVIII.Contact........................................................................................14

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I. Introduction
Dear customer,
Congratulations to your purchase of PULSE AR III, a professionally-built metal
detector with discrimination and a depth location up to 6 m and most efficient to
search after precious metals (gold, silver, platinum).
To avoid possible operating errors please read this instruction manual carefully.
We wish you much success with your new PULSE AR III and will be at your disposal,
if any questions should arise.
II. Volume of delivery
Electronic unit with built-in storage battery, leather bag and shoulder strap
Mobile microprocessor-controlled quick-charger with car-recharger
(connection at cigarette lighter) and 110 Volt adapter
Stereo headphones
25cm searchcoil incl. telescope bar (depending on equipment version)
45cm searchcoil (depending on equipment version)
Cylindric coil (depending on equipment version)
1x1m searchcoil, 8-fold fragmented incl. transport bag (depending on
equipment version)
Carrying case
III. Installation
1. Assemble the telescope bar. For that purpose the central rod (aluminum tube
adjustable in length) has to be positioned into the aluminum tube of the arm-
rest.
2. Afterwards connect the telescope bar with the aluminum tube of the
searchcoil.
3. Wrap the searchcoil cable around the aluminum tube.
4. The electronic unit is protected by a bag; through the lower opening in the bag
the jack of the search coil must be plugged into the panel jack.

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IV. Appropriate handling
Operate the searchcoil approx. 2 to 5cm parallel to the soil. Due to the pulse
induction method a swiveling of the searchcoil is not necessary.
Dictate your own speed during the search. To search a large area within a very short
time we recommend a speedy pace (no jogging).
V. Adjustment
The metal detector PULSE AR III can be adjusted in no time.
1. By using the turning knob “MODE” you activate the metal detector.
2. Briefly press the RESET-button in order to obtain a zero balance which is
necessary for a failure-free search.
3. Adjust the FREQ.-regulator until a slow ticking signal is hearable. This signal is
acoustically similar to a seconds counter.

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VI. Application of the RESET-button
The function of the RESET-button is very important; the button should be
implemented after every modification.
After every turn-on procedure,
after every change of MODE-function,
after every swap of the searchcoil
during the search if sound gets unstable due to poor soil conditions or earth
magnetism.
While searching it must be observed that the sound is constant. If this not should be
the case, it is possible that a magnetic field caused a misadjustment.
It also must be ensured that during zero balance no metal objects are
located in the immediate vicinity of the metal detector. This can produce a
false calibration and unwanted indication effects.
VII. Indication of metal
The indication of a metal will be shown through the left-hand LED and the pulse tone.
Your device has a sound location system. With the approach of the searchcoil at a
metal object the tone frequency will rise. Once the soil is exactly over the object, the
highest tone is reached.
This method not only helps to locate the exact spot of discovery but it also detects –
based on the duration of the sound –the object‟s shape.
Examples:
A long-lasting high tone in longitudinal direction stands for a narrow object
(e.g. a tube),
a high tone in any direction calls for a circular object.
During search it often happens that side noises appear to be disruptive. Therefore we
recommend the use of the provided headphones.

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VIII. Search process
To make the search result-oriented and for this reason successful, the following facts
should be kept in mind:
modification of the tone (frequency)
intensity of the tone
continuity of the tone
level of value (display)
The modification of the sound is the first sign for the location of a metal object. The
more intensive the tone, the larger the metal object and the nearer it is located to
earth‟s surface. While the tone is hearable, the searchcoil should be moved in the
near vicinity to find out the possible shape of the metal object.
The concurrent adherence to sound and display value leads to a better analysis of
the discovered object.
IX. Electronic unit (front side)
The electronic unit is installed in a high-quality box. Besides the display there are 4
control elements attached to the front side.
1. MODE:
The MODE-knob can be switched to 4 positions:
DISC:
In this search mode the discriminator comes into operation. Thereby an optical and
acoustical discrimination takes place. The different metals will be signaled through
varying tones and conductivity values.

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Examples for different conductivity values:
light metals (e.g. aluminum) 20
copper 40
gold, silver, platinum 100 and over.
ALLM.:
This search mode shows all metals without discrimination. Here the metals will not be
tested for their conductivity. Without discrimination they will be shown acoustically
and optically through needle deflection.
This has the advantage that the search will be carried out with the highest sensitivity.
At the same time a depth measurement takes place which is visualized by needle
deflection. The shorter the needle deflects, the deeper the metal is located.
Furthermore shape and size of the located object can be determinated through
needle deflection.
BATT.:
Scale to control the battery condition. The battery is charged if the needle points to
100 or higher.
OFF:
The metal detector is switched off.
2. RESET:
Automatic zero balance. By pressing the RESET-button the device will be adjusted
unto the respective ground.
3. FREQ.:
Frequency setting controller –the smaller the object you are searching for, the
smoother the adjustment must be.
4. VOLUME:
Volume control.
5. RIGHT-HAND LED:
The right-hand LED serves the purpose of discrimination in DISC mode; the left-hand
LED flashes when the optical indicator appears in the ALLM and DISC mode.

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X. Electronic unit (back)
There are 2 connection sockets at the back side:
1. Socket for coils: The connector for the coil is on the left-hand side. The connector
plug of the search coil has to be plugged into the socket. Before removing the plug,
the jack must be pressed, then the plug can be pulled out. The connector is
compatible with all searchcoils.
2. Headphone socket: Any commercial headphones with 6.3mm jack can be plugged
in. If you use the headphones, the speaker is turned off. Matching, light-weight
headphones are provided with this device.

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XI. Usage of appropriate searchcoils
According to the purpose PULSE AR III is applicable with various searchcoils.
25 cm searchcoil
The 25 cm searchcoil is the standard
tube of PULSE AR III and is particularly
suitable for the search after small metal
objects.
45 cm searchcoil
Very convenient for the search after
small, medium-sized and large metal
objects. Furthermore it has the benefit of
a speedy uninterrupted search process.
Cylindric coil:
Through its dimensions of 5x20cm
appropriate for the search in wells,
narrow excavations and underwater. At
the same time it can be helpful to find
micro-objects.

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1x1m searchframe
Preferably used for the deep sounding after medium-sized and large metal objects.
During the search you should hold the searchcoil between 20 to 50cm over the
ground. The higher the distance to the soil the less small and medium-sized metal
objects are displayed.
Assembly of the 1x1m searchframe
1. Connect the pipes (8 pieces) in numeric order. Please note that the numbers
should be readable on the upper side.
2. Arrange the searchframe on a flat surface and be sure that the frame is straight.
3. Afterwards the cable has to be placed on the pipe and fixed at the corners
through the provided tape. Please be sure that the cable and searchframe are
firmly connected to each other.