Ground balance can be performed in three ways with the
Kruzer
: Automatic, Manual and
Tracking.
When the GB button is pushed while performing automatic or manual ground balance,
the device will switch to the General Search (GEN) mode automatically on the background
without any indication to the user, regardless of the selected search mode.
Upon completion of ground balance, current ground balance value is shown in the Ground
Balance (GB) box on the right side of the display.
Automatic Ground Balance
Automatic ground balance is performed as follows in all search modes:
1)
Find a spot where there is no metal.
2)
Push and hold the GB button down (GROUND BALANCE value and “Pump Coil” warning
message will be shown on display) and start pumping the search coil up and down from
about 15-20 cm (~6''- 8'') above the ground down to 3 cm (~1'') off the ground with smooth
movements and keeping it parallel to the ground.
3)
Continue until a beep, indicating the completion of ground balance, is heard. Based on
ground conditions, it usually takes about 2-4 pumps for the ground balance to be completed.
4)
Upon completion of the ground balance, ground balance value is shown on the display
(GB). The device continues to ground balance and produce a beep sound as long as you keep
the GB button pushed down and pump the coil. In order to ensure that the ground balance is
proper, ground balance at least 2-3 times and check the ground balance values on the display.
In general, the difference between the values shall not be higher than 1-2 numbers.
5)
If you cannot ground balance, in other words, if no beep sound is produced, it means that
either the ground is too conductive or not mineralized or there is a target right below the
search coil. In such a case, retry ground balance at a different spot. If you still cannot ground
balance, read the section titled
''Important Details Concerning Ground Balance''
.
When the ground balance button is released, the device continues to operate in the GEN
mode for a short period of time and the ground balance value stays on display. This makes
it possible to manually fine tune the automatic ground balance value. Refer to the following
"Manual Ground Balance"
section for further information regarding this feature. If this is
not desired, press the PP button once to return to the main screen.
NOTE:
If the iSAT value is set high, the device may not auto ground balance. In such a case,
lower the iSAT value first. After ground balancing, set the iSAT back to its original position.
Page 20
Manual Ground Balance
Allows you to manually modify the ground balance value. It is not preferred mostly because
it takes time. However, it is the preferred option in cases where a successful ground balance
cannot be performed using other methods or minor corrections are required to the
automatic balance.
Kruzer
is designed to allow for automatic ground balancing conveniently on any type of
ground. Therefore, it is recommended to perform automatic ground balance upon start up.
However, the ground may not be suitable for automatic ground balancing in some cases
and the device cannot ground balance on such grounds (Except for the BEACH mode). For
instance, wet beach sand, soils containing alkali or salty water, trashy sites, ploughed fields,
highly mineralized grounds and grounds with very low mineralization are not suitable for
automatic ground balance. In such terrains, you can auto ground balance in the BEACH
mode and then switch to other modes or try manual ground balancing. However, manual
ground balance requires a skill which develops over time through practice.
To perform manual ground balance:
1)
Find a clear spot without metals and switch the device to the GEN mode.
2)
You need to listen to the sounds coming from the ground in order to perform manual
ground balance. Pump the search coil up and down from about 15-20 cm (~6''- 8'') above
the ground down to 3 cm (~1'') off the ground with smooth movements and keeping it
parallel to the ground.
If the sound gets higher when lifting off the search coil above the ground, the ground
balance value is too low, in other words, the effect from the ground is negative and the
ground balance value needs to be increased by using the ( + ) button. On the other hand,
if the sound gets higher when lowering the search coil to the ground, the ground balance
value is too high, in other words, the effect from the ground is positive and the ground
balance value needs to decreased by using the ( - ) button.
3)
Push the ground balance button once and release it. The ground balance value will be
shown on the display and remain there for a moment. You can return to the ground balance
screen by pushing the ground balance button if the screen switches.
Manual ground balance functions within the
range of 0-99.80 However, each value covers
5 steps used for fine tuning within itself and
these steps are indicated as multiples of 20 in
the Ground Balance window (GB). For example,
ground balance value shown on the side is 70.80.
Press ( + ) or ( - ) to increase or decrease the ground
balance value, respectively. If the key is pressed
once at a time, the values count one by one and if
it is held down, the values will change quickly.
4)
Repeat the above procedure until the sound heard from the ground is eliminated.
The sound may not be eliminated completely in some areas. In these cases, listen to the
sounds produced when moving the search coil towards and away from the ground to check
if the ground balance is correct. If there is no difference between the two sounds then the
ground balance is set properly.
The device will return to the main screen automatically after a short period of time upon
completion of ground balance. To return to the main screen instantly, just press the PP
button once.
IMPORTANT!
Experienced detectorists adjust the ground balance setting to a slightly posi-
tive response (weak but audible sound is produced when moving the search coil closer to
ground). This method may produce favorable results for experienced users in certain fields
where small targets are searched for.
Ground Tracking (TRACKING)
In this option, the user does not need to make any adjustments. TRACKING feature is
activated from the OPTIONS menu by switching it to 01 position. The word ''Tracking''
is displayed at the bottom of the GB window. The device updates the ground balance
automatically as long as the search coil is swung over the ground and shows the ground
balance value in the GB window. It does not provide any feedback to the user (like the
beep sound in automatic ground balance).
While tracking is active, the device can initially produce a loud signal when it detects a
different ground structure (for instance a mineral rock) or a target. In this case, swing the
search coil over the spot where the device produces the signal . If the sound remains the
same and the device shows an ID, it is possibly a target. If the sound attenuates too much
or is lost after a few swings, it means that the device has produced a signal for the different
ground structure or a stone.
NOTE:
It is recommended that you use tracking in the General Search mode (GEN) and not
in the discrimination modes.
Tracking is suitable for use in areas where different soil structures are present within the
same land or in fields where mineralized rocks are scattered widely apart. If you use ground
tracking in areas where hot rocks are intensely present, the device may not be able to elimi-
nate these highly mineralized rocks or you may miss the smaller or deeper metals.
IMPORTANT!
Ensure that tracking is off during air tests. Otherwise, the device will attempt
to perform ground balance on the target and the depth will be reduced.
Ground Balance Value
Ground balance value provides information about the ground you are searching on. Some
typical ground types are as follows:
0-25
Wet salt water or wet alkali soils
25-50 Wet salt water and wet alkali soils covered with dry layers
50-70 Regular, low-quality soils
70-90 Highly magnetic soils, magnetite or maghemite and similar highly mineralized soils,
black sand.
Important Details Concerning Ground Balance
1)
Upon start up, the ground balance value is set to 90. The device can perform ground
balance automatically within the range of 20-99.80 in all modes and 00-99.80 in the BEACH
mode.
2)
If the ground mineralization is too low, automatic ground balance may fail to work in
other modes except for the BEACH mode. In such a case, you can auto ground balance in
the BEACH mode and then switch to other modes or try manual ground balancing.
3)
You can test the accuracy of the ground balance with the pinpoint mode. After ground
balancing, if you receive no sound or a weak one when you move the search coil closer to
the ground in the pinpoint mode, then the ground balance is successful. If the sound gets
louder when you move the search coil closer to the ground, then the ground balance is not
successful. In this case, simply change your location. If ground balance is not possible despite
these efforts, you should continue your search without performing ground balance.
You cannot search in the General Search (GEN) mode without ground balancing. You need to
use one of the discrimination modes and increase the DISC. value until the noise is eliminated.
4)
Once the ground balance is set, it will remain satisfactory for a long time in most areas.
However, if you encounter an excavated, backfilled or geologically composite soil structure,
a ground balance should be performed again to adapt to the varying soil structure. In
addition, re-ground balancing is recommended for the multi Kruzer model if you change
the operating frequency of the device (5kHz/14kHz/19kHz) in certain ground conditions.
5)
When using the optional large coil, pump the coil more slowly and do not keep it very
close to the ground.
6)
In some cases where the iSAT value is set high, the device may not be able to ground
balance automatically. In such a case, first lower the iSAT and after ground balancing switch
it back to its previous position.
TARGET ID is the number produced by the metal detector based on the conductivity of the
metals and gives an idea to the user about what the target may be. Target ID is shown with
two digits on the display and ranges between 00-99.
NOTE:
Keep in mind, large targets will ID higher than expected, even though they may be
of lower conductance.
In some cases, the device may produce multiple IDs for the same target. In other words, the
IDs may be jumpy. This may result from several factors. Target orientation, depth, purity of
the metal, corrosion, mineralization level of the soil etc. Even the direction of the search coil
swing may cause the device to generate multiple IDs.
In some cases, the device may fail to provide any ID. The device needs to receive a strong
and a clear signal from the target in order to provide an ID. Therefore, it may not be able to
provide an ID for targets at fringe depths or smaller targets even if the device detects them.
Keep in mind that target IDs are “probable”, in other words, estimated values and it would
not be possible to know the properties of a buried object exactly until it is dug out.
IDs of non-ferrous metals such as copper, silver, aluminum and lead are high. Target ID range
of gold is wide and may fall within the same range of metal wastes such as iron, foil, screw
caps, and pull tabs. Therefore, if you are looking for gold targets, digging out some trash
metals is expected.
Volume
This control allows you to increase or decrease the device's volume based on your preference
and environmental conditions. Volume level can be adjusted from 0 to 10. When you turn off
and on the device, it will start with the last volume level you chose. This setting is common to
all modes; changes will take effect in all modes.
Because the volume level affects power consumption, we recommend you not to increase
it more than necessary.
Brightness (BRIGHT.)
It enables you to adjust display backlight level according to your personal preference. It
ranges between 0-5 and C1-C5. At 0 level, the backlight is off. When set between 1-5, it
lights up only for a short period of time when a target is detected or while navigating the
menu and then it goes off. At C1-C5 levels, it will be continuously lit. The continuous opera-
tion of the backlight will affect power consumption, which is not recommended.
The backlight setting is restored to the final saved setting when the device is turned off and
on again. This setting is common in all modes; change made in any mode also applies to the
other modes.
Vibration (VIBRATE)
This feature provides feedback to the user by producing a vibration effect when a target is
detected. It can be used independently or together with the audio response. When audio
response is disabled, all feedbacks are provided to the user as vibration only during target
detection.
Vibration setting is adjusted within the range of 00-05. When it is switched to 0, vibration
feature is completely disabled. If the vibration is at 01 level, the device provides long vibra-
tion signals and at 05 it provides short vibration signals. The magnitude of the vibration
effect can vary according to the depth of the target and the swinging speed. This setting is
common in all search modes; change made in any mode also applies to the other modes.
Vibration may not be felt in the General Search mode (GEN) with weak signals; it will be felt
as the signal gets stronger. In other words, vibration does not start at the depth where the
audio tones are heard but at a lesser depth. Therefore, if you are detecting with vibration
only and audio tones are off, you can miss weaker and deeper signals.
Vibration speed is constant in the pinpoint mode and cannot be adjusted. Vibration is off at
0 position. 01-05 values provide the same level of vibration in the pinpoint mode. When
vibration is used in the pinpoint mode, vibration speed increases as the target is
approached and it reaches the maximum level over the center of the target.
The vibration setting is restored to the final saved setting when the device is turned off and
on again. This setting is common in all modes; change made in any mode also applies to the
other modes.
Tracking (TRACKING)
When tracking is active (01 position), the device continuously tracks the changing ground
structures and automatically reconfigures the ground balance setting. The invisible changes
in ground affect the detection depth as well as the discrimination ability of the device so it
is possible to operate the device at higher performance using this feature under suitable
ground conditions.
Please refer to page 10 for more information on Tracking.
When tracking is activated, ''Tracking'' will be displayed at the bottom of the GB window.
NOTE:
Tracking is recommended to be used in the GEN mode only.
Frequency (FREQ.)
This setting has different functions in the
Kruzer
and the
multi Kruzer
. In the
Kruzer
, it is
used to shift the frequency and in the
multi Kruzer
it is used to change the operating
frequency of the device.
FREQ. Setting in the Kruzer - Frequency Shift
It is used to eliminate the electromagnetic interference that the device receives from
another detector which operates in the same frequency range nearby or from the
surroundings. If too much noise is received when the search coil is lifted in the air, this may
be caused by the local electromagnetic signals or excessive gain settings.
To eliminate the noise caused by electromagnetic interference, try shifting the frequency
first (FREQ.) before lowering the gain to obtain maximum depth performance . Frequency
shift consists of 5 steps. Default setting is F3 which is the central frequency. You can shift the
frequency between F1-F5 using the plus (+) and the minus (-) buttons.
IMPORTANT!
Frequency shift may impair performance. Therefore, it is suggested that you
do not shift the frequency unless it is necessary.
FREQ. Setting in the multi Kruzer - Changing the frequency
Multi Kruzer offers 3 operating frequencies — 5kHz, 14kHz and 19kHz— to suit different
target and soil types.
Based on the frequency selected, the detector's detection performance for different types
of targets will vary. The list below includes, but are not limited to, different types of targets
that correspond to each frequency:
5kHz:
Large ferrous and non-ferrous objects
High conductive coins
Medium or relatively small targets in non-mineralized ground without iron trash
Ferrous masses and militaria
14kHz:
General use
Small coins
Different size coins in medium-highly mineralized ground
19kHz:
Small coins with different conductivities and thin large coins
Gold coins, rings, small jewelry , sheet iron, foil
Small targets in iron trash
To change the operating frequency of the device, press the OPTIONS button first. After
selecting the FREQ. option, change the frequency using the plus (+) and minus (-) buttons.
You will hear the sound of the relay circuit; this is normal. At the same time, lines will start
rotating in the middle of the screen and they will stop when the new frequency is active.
Shifting the Frequency in the multi Kruzer:
Just like in the
Kruzer
, it is used to eliminate the electromagnetic interference that the
device receives from another detector which operates in the same frequency range nearby
or from the surroundings.
To shift the frequency, first select FREQ. from OPTIONS and then press SELECT once.
Frequency shift consists of 5 steps. Default setting is F3 which is the central frequency. You
can shift the frequency between F1-F5 using the plus (+) and the minus (-) buttons.
Factory Default /Save (FD/SAVE)
With the FD/SAVE feature of the
Kruzer
, you can save your settings or restore factory
defaults. Save function saves all settings except for the ground balance and tracking. The
device starts in the last mode where the save function was performed.
To save your settings, select FD/SAVE on screen. Two dashes (--) will be displayed on screen.
Push the right button. When ''SA'' is displayed, press the SELECT button once. You will see
lines rotating in the middle of the screen. When the saving is completed, the lines will stop
rotating and the SA text will disappear.
To go back to factory defaults, select FD/Save on screen. Two dashes (--) will be displayed on
screen. Push the left button. When ''Fd'' is displayed, press the SELECT button once. You will
see lines rotating in the GB window on the right side. When the process is completed, the
lines will stop rotating and the Fd text will disappear.
Wireless Connection (WIRELESS)
It is used to turn on and off the wireless headphones connection and to change the channel.
After choosing the WIRELESS option, you can change the channels between 00-19 or you
can completely turn the wireless connection off by choosing the oF (off) position.
For more detailed info about the wireless headphones, please read the instructions included
with the headphones.
On the
multi Kruzer
, when the operating frequency is changed (5kHz/14kHz/19kHz), the
Target ID will change as well. This represents the ''Standard'' ID scaling of the device.
IMPORTANT! At start up, multi Kruzer will utilize the ''Normalized'' ID scale and not the
Standard ID scale.
In other words, the IDs will not change upon frequency change and the
device will generate the 14kHz IDs in each frequency. However, based on ground conditions
IDs may vary for certain metals.
If you prefer to see the different IDs produced by each frequency, you need use the
''Standard'' ID scale. To switch to the standard IDs,
while the device is on
, push the plus
(+) and minus (-) buttons at the same time. Letters ''Sd'' will appear on the screen. If you
wish to revert back to the normalized IDs, repeat the same process and letters ''no'' will
appear on the screen.
The table showing the probable IDs for the Kruzer and the multi Kruzer models is placed
at the back of this manual. You can easily detach the page and carry it with you during
your searches.
Coins searched throughout the world are made of different metals and in different sizes in
different geographical locations and historical eras. Therefore, in order to learn the Target
IDs of the coins in a specific region, it is suggested to perform a test with the samples of
such coins, if possible.
It may take some time and experience to make best use of the Target ID feature in your
search area. Different brands and models of detectors produce different target ID numbers.
The numbers vary even more depending on target depth, ground mineralization, and
adjacent metals. But after some practice, you will quickly become comfortable with the
meanings of the
Kruzer
's Target IDs.
Target ID Depth
This setting is not present in the menu.
Adjusts the depth level that the device displays an ID for a detected target. It consists of 3
levels: Hi (High), In (Intermediate), Lo (Low). Factory default is set to ''In''.
The lower the ID depth level is, the higher the ID accuracy and vice versa. At the high level,
the IDs may become jumpy.
To change the ID depth level, press the PP button and the up button simultaneously. Each
time you press the up button, the ID depth level will change.
OPTIONS
