Handleiding Nokta Makro Gold Kruzer (pagina 19 van 32) (Engels)

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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.

Tone Break (T.BREAK)

It is active in the MICRO mode only. It is used to adjust the break point of the ferrous

target response tone between 00-66 on the Target ID range .

To use the Tone Break feature, first select T.BREAK from SETTINGS . The ferrous tone break

value of 40 will be displayed. You can adjust this value between 00-66 by using the plus (+)

and minus (-) buttons.

Let's say, you changed this value to 50. In this case, the device will produce a low iron tone

for all metals with IDs equal to or less than 50.

TONE

This feature is selectable in all modes except for the MICRO mode. Allows you to change the

frequency of the target audio response tone and the threshold sound according to your

preference. The frequency can be adjusted between 150 Hz (15) and 700 Hz (70).

TONE adjustment applies to the selected search mode only. The change does not affect the

other modes.

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

operation 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.

Frequency (FREQ.)

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.

While the device is in detection mode, meaning when the cursor is pointing at MODE, press

the SETTINGS/OPTIONS button once to access the settings. You can navigate the 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/OPTIONS button twice 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, in other words the sensitivity, is the depth setting of the device. It is also used to

eliminate the ambient electromagnetic signals from the surrounding environment and

noise signals transmitted from ground.

NOTE: To obtain maximum depth performance, to eliminate the noise caused by

electromagnetic interference, try shifting the frequency (FREQ.) first.

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 Other Modes:

Since the threshold setting is not available in modes other than GEN, 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 these 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: Gold Kruzer is a high gain device and especially the BOOST mode will run relatively

noisy compared to other modes so as to provide the best depth performance. However,

due to the design characteristics of this mode, 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 discriminated out 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.

When using the DISC. setting, please remember that other targets, different than the ones

you want to ignore, that fall into the same ID range may also be missed or their signals may

become weaker.

In the case of receiving multiple IDs for the same target - let's say 35 and 55 - due to the

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

because 35 will fall in the discriminated out range, the signal strength as well as the depth

may diminish.

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)

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

necessary. 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 6 levels. The device will start at level 2. It is recommended that iSAT should

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

iMASK (Intelligent Masking)

This setting is available in all modes except for GEN mode. It is used to eliminate false

signals caused by ground noise or hot rocks when searching 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 during

searching , 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 iMASK level until the false signals are eliminated.

At the maximum levels of iMASK, false signals will disappear or will be minimized. However,

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

copper.

NOTE: iMASK value ranges between 00-10. The factory default is 01. At ''0'', the iMASK

feature will be inactive. If the ground is not highly mineralized or does not contain many

hot rocks, setting the iMASK to ''0'' is recommended.

Tracking (TRACK)

Although the tracking setting is selectable in the GEN mode only, it is actually a

common feature to all modes so when it is turned on, it becomes active in all modes. The

reason it is selectable in the GEN mode only is that the use of tracking is recommended in

the GEN mode and not in the other modes. After using tracking in the GEN mode, if you

switch to other modes and do not want to use tracking, you need to select it in the menu

again in GEN mode and turn it off.

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.

Iron Volume (Fe VOL.)

It is active in the MICRO mode only. It adjusts or turns off the volume of the low iron tone

in this mode. It can be adjusted between 0-5.

Factory Default /Save (FD/SAVE)

With the FD/SAVE feature of the Gold Kruzer, you can save your settings or restore factory

defaults. Save function saves all settings except for the ground balance, tracking and

frequency shift. 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/E.U.D 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/E.U.D 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.

TARGET DEPTH

The device provides an estimated target depth according to the signal strength both

during detection and in the pinpoint mode.

Depth Indicator: It shows the target's proximity to the surface in 5 levels during detection.

Because each mode of the Gold Kruzer has different depth, the depth indicator will display

a different depth level for the same target in different modes.

In the pinpoint mode, estimated target depth is shown on the display in cms (or inches -

please see below for details) while getting closer to the target.

Depth detection is adjusted presuming that the target is 2.5cm (1'') in diameter. Actual

depth varies according to the size of the target. For instance, the detector will indicate more

depth for a target smaller than 2.5cm (1'') and less depth for a larger target. In reality,

pinpoint procedure is not intended for depth determination but exact location

determination. Therefore, it is recommended that the depth indicator on the display is used

for determining the proximity to the target.

IMPORTANT! If you want the target depth to be displayed in inches instead of cms please

do the following: While the device is off, press and hold the SETTINGS/OPTIONS and

BOOST buttons simultaneously and turn the device on. ''In'' will be displayed. To switch

back to cms, you need to turn the device off and then repeat the above procedure. While

the device is initializing, ''SI'' will be displayed.

LARGE OR NEAR-SURFACE TARGETS

Targets which are near the surface may give multiple different signals to the device. If you

suspect a target near the surface, lift the search coil and swing it more slowly until a single

signal is received. Also, if there is a large target near the surface it may cause an overload in

the search coil and the device starts to generate a continuous sound which resembles a

siren. “Overload” message is shown on the display simultaneously. In such a case, lift the

search coil up until the message disappears.

FALSE SIGNALS AND REASONS

Sometimes, the device may produce signals which are similar to a target signal although no

metal target is present. There are various reasons for the false signals received by the

device. The most common ones are ground mineralization or rocks with high mineral

content, surrounding electromagnetic signals, operation of another nearby detector,

rusted or corroded iron or foil in the soil, gain or threshold values set too high.

Surrounding electromagnetic signals can be eliminated by reducing the gain. If another

detector is operating nearby, you may attempt to shift the frequency or perform your search

at a distance where no interference occurs. For ground mineralization or hot rocks with high

mineral content, and gain and threshold set too high, please read the related sections.

MAGNETIC MINERALIZATION INDICATOR

The Magnetic Mineralization Indicator consists of 5 levels. The indicator bars do not rise at

low mineral levels during search and at start up. In areas where the magnetic mineral level

is high, the indicator bars will rise according to the intensity. This measurement can be

summarized as the level of magnetic property and intensity of the ground.

This measurement is important from two aspects. First, on grounds with high magnetic

mineralization, search depth is low and users should be aware of this fact. Second,

magnetic mineralization is a property which is particularly seen with mineralized rocks and

this measurement plays an important role for the device to eliminate the false signals

produced by these rocks.

ROCKS AND SEARCHING IN ROCKY TERRAINS (GENERAL MODE AND OTHERS)

Challenging ground conditions arise especially when conductivity and magnetic

properties of the ground are too intense. Operation of the device over such ground is made

possible by selecting the best operating mode as well as using proper ground balance,

gain, iSAT, iMASK and threshold settings.

Stones and rocks or cavities inside the ground are as important as the ground itself in

regards to the search and target detection quality.

Soil and rocks have two different properties just like the targets you are searching for. One

of them is the intensity and the other one is the conductivity - magnetic permeability ratio

and these two properties are independent from each other. In this manual, the

conductivity - magnetic permeability ratio will be referred to as ID in short. High magnetic

permeability, low conductivity results in low ID. Soil or rocks can be highly permeable and

have low or high IDs as well. If the conductivity increases relative to magnetic permeability

then the ID will also increase.

Hot rocks are classified as negative or positive based on their ID being low or high in

comparison to the ID of the soil they are in. One or both of the types may be present in a

field. The negative and positive effects mentioned here will only be valid if ground

balancing is properly done on the existing ground. Otherwise, soil itself will not act

differently from hot rocks in terms of ID. In ''TRACKING'' however, conditions will differ.

Therefore, the effects of rocks in tracking will be discussed separately. Here we are referring

to a proper ground balance without tracking.

Positive hot rocks act just like metal and produce a metal sound. In the General Search

Mode (GEN) they produce a “zip zip” sound when the search coil is moved over them. If the

signal is strong enough, the device may produce an ID for these hot rocks and the Mineral

Bar will rise. Negative hot rocks in the General Search mode, produce a long “boing” sound

when the search coil is moved over them. The device does not give an ID for these hot rocks

even if the signal is strong but the Mineral Bar will rise.

Positive hot rocks provide a typical metal sound in the other modes. Negative hot rocks do

not provide a sound in these modes (except for rare cases of false signals). The Mineral Bar

will rise in either case.

At higher settings of iSAT, there will be no change in the sounds of positive or negative hot

rocks. As the iSAT value is decreased, the sound of positive hot rocks will remain the same

but the negative hot rocks may give a thinner beep sound instead of the boing sound.

Therefore, you can make a decision by listening to the audio responses produced by the

device in the field. In the GEN mode, when the device produces an audio tone, if the mineral

bar rises at the same time, you can decide whether the target is a positive or a negative hot

rock by listening to the sound. In the other modes, if you have not changed the default

DISC. setting of the device, the device will not produce an audio tone for positive hot rocks

and if you have ground balanced, it will not emit an audio tone for negative hot rocks

anyway. If you have changed the DISC. setting of the device in these modes, when you

receive a strong signal and a stable ID, you can distinguish if the detected target is a positive

hot rock or metal by checking the ID. However, remember that weak signals may produce

different IDs and metals under rocks may produce different metal signals. Therefore, the

most appropriate action is to dig up when a metal signal is received.

Because you can encounter such a situation in gold prospecting areas where nuggets are

being searched for, it is important for you to get familiar with the hot rocks and their IDs in

your search field and pre-test the device with some nuggets.

If you are using one of the modes other than the GEN mode and you know the ID of the

surrounding hot rocks, you can use the DISC. setting to eliminate the rocks. However, this

may not be sufficient to avoid all rock signals. The device may still receive signals from rocks

because soil and rocks together will form a combined effect and generate a different ID

than those of rocks.

TRACKING AND EFFECTS OF ROCKS

When the tracking is active, the device may give an audio response and ID when it passes

over a hot rock because the effect of the rock will be different than the ground's. At the sime

time, the mineral bar will rise. If you swing the search coil over the rock, tracking will

automatically adjust the setting and the audio response/ID will either disappear or

diminish significantly. Because there is a slight delay in tracking, you may hear a strong

signal at the first one or two swings until the setting is adjusted. Then the sound will get

weaker and disappear. This will not happen with metal targets because metals will prevent

the device from ground balancing. Therefore, in tracking, if you are getting a constant

signal over a target after repeated swings, there is a high possibility that the target is a

metal. Moving from over a rock back to soil, the device may give signals to the ground for a

few swings until the ground balance setting is updated again. This is normal and should not

mislead you.

Tracking is not recommended to eliminate rocks under normal conditions. It is

recommended for use in areas with changing soil types.

METALS UNDER ROCKS

Gold Kruzer increases the possibility of detecting metal targets under mineralized rocks

through the proper adjustment of your settings. The combined effect created by the rock

and metal together is lower than the effect that the metal creates by itself and the

displayed ID will be different than the metal's expected ID. The displayed ID is formed by

the combination of rock and metal together and gets closer to the ID of the rock if the size

of the metal is smaller in relation to the rock. Keep in mind that metals under hot rocks will

never appear with their own metal ID. For instance, a gold piece under a brick may produce

an iron tone and ID.

If you eliminate hot rocks with a correctly adjusted DISC. setting in the search modes other

than GEN, you can hear the signal of the target under the rock if the target signal has a

slightly greater effect than the DISC. value. The important thing here is that if you detect a

target and dig out a rock, you should note the ID you got before digging and use it as the

DISC.value the next time.

For instance; the hot rocks in your search field tend to give IDs around 00-04. In this case,

you should set the DISC. to maximum 05. This way you can eliminate rocks and receive the

signals of metals underneath. If you set the DISC.too high unnecessarily, you will lose

metals along with rocks.

IMPORTANT! When searching in fields with hot rocks, using the E.U.D feature (page 20) is

recommended to avoid missing metals under hot rocks.

SETTINGS

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