Makro Detector Kruzer User Manual Download

Page: 22 / 36

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:

Find a spot where there is no metal.

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.

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.

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.

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 19

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:

Find a clear spot without metals and switch the device to the GEN mode.

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.

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.

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

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.

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.

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.

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.

When using the optional large coil, pump the coil more slowly and do not keep it very

close to the ground.

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.

Push the SETTINGS button to access the basic settings. You can navigate the basic settings

with the up and down buttons. The value of the selected setting will be displayed on

screen. You can change the value using the plus (+) and minus (-) buttons. If the up/down

and +/- buttons are held down, the options and values will change rapidly.
To exit the settings, press the SETTINGS or the PP button once. Settings will time out in

approximately 8 seconds and the device will revert back to the modes window.

NOTE:

Certain settings are mode specific and thus cannot be selected in other modes.

GAIN

Gain is the depth setting of the device. It is also used to eliminate the ambient electromag-

netic signals from the surrounding environment and noise signals transmitted from ground.

NOTE:

To obtain maximum depth performance, to eliminate the noise caused by electro-

magnetic interference, try shifting the frequency first.
Frequency shift is done with the FREQ. option in the

Kruzer

and with a combination of

buttons in the

multi Kruzer

(see pages 21-22)

. In the

multi

Kruzer

, when the frequency

shifting is not sufficient for eliminating noise, you can also change the operating frequency

(5kHz/14kHz/19kHz) of the device.
Gain setting range is 01-99 and pre-defined for each mode. All modes start at default

settings. They can be manually modified when necessary. Gain adjustment applies to the

selected mode; the modified setting does not affect the gain setting of the other modes.

NOTE:

If the ground is highly mineralized causing the device to overload, decrease the gain

until the ''Overload'' message disappears from the screen.

Gain in General Search Mode (GEN):

In the GEN mode, gain setting causes an increase or decrease in the popping sounds and false

signals. Gain setting is a personal preference. However, It is important to set the gain setting

to the highest level possible where no major popping sounds are heard to avoid missing

smaller and deeper targets. For example; if the noise level is suitable for searching and is the

same at gain levels 40 and 70, then 70 should be preferred. Using the factory default levels

will be a good starting point until you get familiar and experienced with the device.

Gain in Discrimination Modes:

Since the threshold setting is not available in the discrimination modes, you can increase

the depth of the device or ensure noise-free operation on different grounds only by using

the GAIN setting.
In order to adjust the gain in the discrimination modes, first ground balance while the gain

is at its default setting. After ground balance is completed, hold the search coil stationary or

swing over the ground at search height. Reduce the gain if the device receives noise. If not

(ensure that the DISC. is also at its default settings when checking this), increase the gain

gradually until there is no popping sound. If the device starts to receive noise during

searching, reduce the gain gradually.

NOTE:

Kruzer

is a high gain device and some of the search modes will run relatively noisy

(DEEP and 4 TONE) compared to other modes so as to provide the best depth performance.

However, due to the design characteristics of these modes, the noise will be heard more if

the coil is in free air than sweeping the coil on the ground. Please keep this factor in mind

while adjusting the gain.

Discrimination (DISC.)

Disc. is the ability of the device to ignore all metals below a certain Target ID. In the DISC.

process, the filtered ID range is shown with lines on the ID scale and every 2 consecutive IDs

are represented with 1 line. For example, if you set the Disc. to 30, 15 lines will be shown

between the 0-30 ID range on the scale and the device will not produce an audio response

for any metals with IDs between 0-30.
DISC. setting is disabled for GEN mode only. For all other modes, the factory default value

will be displayed on screen at start up.
In order to change the DISC. value, select the DISC. option from the SETTINGS and decrease

or increase the value using the plus (+) or minus (-) buttons. Please remember that certain

targets, other than the ones you want to ignore, may also be missed or their signals may

become weaker when using the DISC. setting.
In the case of receiving multiple IDs for the same target - let's say 35 and 55 - due to the orien-

tation of the target or the composition of the metal itself, if you set the DISC. to 40, because

35 will fall in the filtered range, the signal strength as well as the depth may diminish.

NOTE: DISC. setting works inversely proportional to depth up to level 15 in all modes. In

other words, as the DISC. is increased up to 15, stability will increase but depth will be

reduced and vice versa. Above 15 though, both depth and noise will increase.
NOTCH

NOTCH is the ability of the device to discriminate single or multiple Target IDs by not

emitting an audio response for them or giving a low iron tone (please refer to iron tone in

notch).
Although NOTCH may seem similar to DISC. at first glance, these two settings have different

functions. While the DISC. filters out all IDs between 0 and the set value, the NOTCH filters

IDs individually.
With the NOTCH you can reject a single ID or multiple IDs at the same time. This process

does not affect any IDs below or above the selected IDs. For example, you can filter out IDs

between 31-35 as well as 50 simultaneously.

How To Use The NOTCH Setting

When NOTCH is selected from the SETTINGS, first, the current DISC. value will be displayed

on screen and discriminated ID range will be shown on the ID scale with lines. For example,

if the DISC. is set to 15, when you select NOTCH, number 16 will be displayed on screen

corresponding to 8 lines on the ID scale (every 2 consecutive IDs are represented with 1

line). NOTCH cannot be used within the DISC. range. In other words, if the DISC. is set to 15,

NOTCH can only be applied to IDs 16 or higher. If you want to NOTCH IDs 15 or below, first

you need to change the DISC. value.
NOTCH rejects or accepts IDs with the help of the cursor in the middle of the screen. To

move the cursor on the scale, plus (+) and minus (-) buttons are used.

The cursor blinks

while it is moving on the scale.

When you are on the first ID that you want to reject, press

the SELECT button once. This ID is now rejected and it is shown on the screen with a line. If

you want to reject multiple IDs, continue to press the plus (+) or minus (-) button. If

non-consecutive IDs are to be rejected, push the SELECT button once to have the cursor

blink for navigation on the scale and repeat the process above. The cursor will appear

where you left it the next time you use the NOTCH.
To give an example; let's say you want to reject IDs between 20-25 and the cursor is at 10.

Press the plus (+) button until you reach number 20. Then push the SELECT button once.

Number 20 will be marked with a line. When you reach number 25 using the (+) button

again, IDs between 20-25 will be filtered out and they will be shown on the ID scale with 4

lines (every 2 consecutive IDs are represented with 1 line).
To accept back the filtered IDs, select NOTCH from SETTINGS. The cursor will appear where

you last left it. Using the plus (+) or the minus (-) button, select the ID you want to accept

and push the SELECT button. Then, using the plus (+) or minus (-) button again, unfilter the

IDs back in. 1 line will be erased for every 2 consecutive IDs accepted.

Iron Tone in Notch Setting:

This will enable you to get a low iron tone for your notched out target IDs instead of

silencing them. To use this feature, first select Fe VOL. from the SETTINGS and using the

plus (+) button select the iron tone volume between n1-n5. n5 is the maximum level and

the iron volume will be reduced as you go down but it cannot be silenced completely.
NOTCH adjustment applies to the selected search mode only. The change does not affect

the other modes.

IMPORTANT!

In the

multi Kruzer

, if you are using the Standard ID scale and you change the

operating frequency of the device, you may need to re-adjust the NOTCH values according

to the IDs you will get in the new frequency.

Iron Volume (Fe VOL.)

It adjusts or turns off the volume of the low iron tone. It can be adjusted between 0-5 or

n1-n5.

0-5:

5 is the maximum level. As you lower it, the audio response volume the device

produces for ferrous metals will decrease. At 0 level, the iron audio will be silenced. In

other words, the device will detect ferrous targets, the Target ID will be displayed on the

screen but the device will not produce any audio response.

n1-n5:

This will enable you to get a low iron tone for your notched out target IDs instead of

silencing them. n5 is the maximum level and the iron volume will be reduced as you go

down but it cannot be silenced completely.
Fe VOL. adjustment applies to the selected search mode only. The change does not affect

the other modes.

Tone Break (T.BREAK)

It is used to adjust the break points of the target response tones on the Target ID range.

Default Tone Break points in the Kruzer will vary according to the search mode. By using the

Tone Break feature, for each metal group (Fe, Gold/Non-Fe, Non-Fe) you can change the

point where the low tone changes into the higher tone.

To use the Tone Break feature, first select T.BREAK from SETTINGS . The names of the metal

groups mentioned above will appear at the bottom of the screen. The Tone Break point of

the metal group will be shown on the screen numerically while the cursor at the top will

point to it on the ID scale. In some modes, there are 2 tone break points and in some there

are 3. To select the metal group, just push the SELECT button. Selection will be framed. To

change the value of the break point, plus (+) or minus (-) button is used.
To give an example for the above explanation; let's say you are in the 3 TONE mode and you

want to change the Tone Break points. First, select T.BREAK from SETTINGS. Fe and

Gold/Non-Fe will appear at the bottom of the screen and Fe will be framed. The default

value of 15 will also be displayed on the screen. Using the plus (+) or the minus (-) button

change this number to any value you want. Let's say you increased it to 40. Then, push the

SELECT button once to select the Gold/Non-Fe. Let's say you decreased the default value of

66 to 50. In this case, the device will produce a low iron tone for all metals with IDs equal to

or less than 40, a medium tone for metals with IDs 41-50 and a high tone for metals with IDs

greater than 50 (If you have also adjusted the audio tones (TONE), the selected frequency

will apply to the new ID ranges).
Tone Break adjustment applies to the selected search mode only. The change does not

affect the other modes.

IMPORTANT!

If you are using the Standard ID scale in the multi Kruzer and you change the

operating frequency of the device, you may need to re-adjust the Tone Break points

according to the IDs you will get in the new frequency.

TONE

Allows you to change the target audio response tones and the threshold sound according

to your preference. For each metal group (Fe, Gold/Non-Fe, Non-Fe) the frequency can be

adjusted between 150 Hz (15) and 700 Hz (70).
When TONE is selected from the SETTINGS, names of the metal groups mentioned above

will appear at the bottom of the screen and the selected one will be framed. To select

another group, just press the SELECT button. Then use the plus (+) or the minus (-) button

to change the audio frequency.

NOTE:

If you want to change the frequency of the 4th tone in the 4 TONE mode, while Non-Fe

is selected, press the SELECT button once. The frame will disappear and the audio frequency

of the 4th tone will appear on the screen. use the (+) or the (-) button to change it.
TONE adjustment applies to the selected search mode only. The change does not affect the

other modes.

Threshold (Thresh.)

In the General Search Mode (GEN), search is performed with a continuous humming sound in

the background, also referred to as the threshold sound. The loudness of this hum directly

impacts the detection depth of smaller and deeper targets and it is adjusted by the threshold

(Thresh.) setting. If the threshold is set too high, a weak target signal may not be heard. On

the contrary, if the threshold is too low, you give up the depth advantage this setting offers.

In other words, weak signals of smaller or deeper targets may be missed. It is recommended

for average users to leave this setting at its default value and for experienced users to adjust

to the highest level where they can still hear the weak target signals.

Threshold level is directly related to the Gain and iSAT settings. Please be sure to read the

related sections of the manual carefully.

iSAT (Intelligent Self-Adjusting Threshold)

iSAT in General Search Mode (GEN)

For the General Search Mode (GEN) to perform accurately, a stable threshold sound is neces-

sary. You cannot search in the General Search Mode without ground balancing. Changes

that occur in the soil structure and mineralization levels after ground balancing, may cause

a rise or fall in the background hum and disrupt the threshold's stability which will result in

false signals and thus missing signals of small metals. iSAT adjusts the speed that the device

recovers its threshold hum and eliminates the negative effects of mineralized soils.

Increasing the iSAT in high mineralization will enable a more stable operation by avoiding

false signals. This, however, may cause some loss in depth and it is normal.

NOTE:

In high mineralization, if you receive too many false signals without disruption in the

threshold hum, lower the gain first before increasing the iSAT. If the false signals continue,

set the gain back to its original value and increase the iSAT.
If the mineralization is low, you can decrease the iSAT and sweep the coil more slowly for a

deeper detection.
iSAT consists of 10 levels. The device will start at level 6. It is recommended that iSAT should

be increased in high-mineralization and decreased in low mineralization.

iSAT in Discrimination Modes

It is used to eliminate false signals caused by ground noise or hot rocks when searching in

discrimination modes and the available range is between 00-10. Its factory default value is

set to (1). You can change the value using the plus (+) and minus (-) buttons.
If the device receives a lot of false signals due to highly mineralized soil or hot rocks in the

discrimination modes, first re-ground balance. If the false signals continue, lower the GAIN

and check again. In case the false signals still exist, try increasing the DISC. value. Regardless

of all these, if the false signals still exist, first change the GAIN and DISC. values back to their

previous levels. Then, increase the iSAT level until the false signals are eliminated.
At the maximum level of iSAT, false signals will disappear or will be minimized. However, in

some cases, increasing the iSAT will result in loss of depth for certain metals such as

copper.

NOTE:

When detecting in 19kHz, on wet or highly mineralized ground, in order not to miss

smaller high conductive metals (silver, copper etc.) it is recommended not to increase the

iSAT level too high.

NOTE:

iSAT value ranges between 00-10. The factory default is 01. At ''0'', the iSAT feature

will be inactive. If the ground is not highly mineralized or does not contain many hot rocks,

setting the iSAT to ''0'' is recommended.

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.

SETTINGS