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The factory setting values for all 4 programs are shown in Table 1:

Remember that the default settings are not an absolute, but offered only

as a starting point to assist your search. Experiment and we hope that in

the near future you will make your own comfortable and effective pro-

gram.

As we gain experience the company reserves the right, without notice, to

change the value of the factory settings.

DEEP PROGRAM (DP)

This program is an addition to the Signum software MFD 7272M and must

be purchased separately. Or, when purchasing the Signum MFD 7272M

version, is included in the software, located on the place of program №4.

The program is designed to search for large objects at a depth in the

ground, including in the conditions of littered with small metal objects

that screen the signal of the desired targets in a usual search. The search

is performed by smooth horizontal wiring of the sensor at a speed of

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Содержание SIGNUM MFD 7272M CLASSIK

Страница 1: ...Attention Please read this manual thoroughly Firmware version 2 06 Discriminating Metal Detector SIGNUM MFD 7272M CLASSIK GT ICB Manual En ...

Страница 2: ...Departement of international trade https aka md com 74957991510 akadetector yandex ru ...

Страница 3: ...TATICMODES OF OPERATION 26 28 MODE TURBO 28 29 MODE ECONOMY 29 30 MODE S ALGORITHM 30 31 MULTI FREQUENCY 31 32 PARAMETER MENU SEARCH OPTIONS DISPLAY SETTINGS SOUND SET TINGS 32 39 ADDITIONAL MENU ADD MENU MENU OPTIONS TONE SETTINGS TONE SETTINGS ST OTHER SETTINGS GS FILTER SETTINGS DEEP ALGORITHM SETTING 39 44 USER PROGRAMS 44 46 DEEP PROGRAM DP 46 47 DEEP PROGRAM SETTINGS CHANGE SOUND SIGNALS DP ...

Страница 4: ...is that we modify each device instrumentally due to this the stability and accuracy of the device have increased which allows us to record weaker signals The analogue regulator allows to result the gain in accordance with the ground conditions also partial dust and moisture protection is added it does not provide complete water protection Thermal stability is improved High recovery speed optional ...

Страница 5: ...gned to operate under the following conditions Ambient temperature from 10 up to 40 c 4 to 122 F Relative humidity up to 98 per cent at temperature of 25 c 77 F Atmospheric pressure from 650 to 800 mm Hg Signum MFD 7272M is an eddy current selective metal detector oper ating on the principle of induction balance The main distinguishing feature of the model is the use of the original software and h...

Страница 6: ... to work The ST channel short tone ST is an object type identification channel If the threshold level of the signal from the object is exceeded it is iden tified in the ST channel then a short sound signal of the corresponding tonality is issued and the hodograph is displayed on the display screen The frequency of the short tone indicates the type of object high tones non ferrous metal low tone fe...

Страница 7: ... 6 batteries type AA 1 ea Operators Manual 1 ea batteries sold separately TECHNICAL SPECIFICATIONS The maximum detection range of metal objects air test with coil Ø260mm DD via RT 25 mm dia coin 60 cm Helmet 150 cm Operating frequency range kHz 1 5 22 Indication modes sound 6 modes RT RT M RT М99 RT SТ RTL SТ ST P visual LCD display with a resolution of 128x64 pixels Search modes All metals sector...

Страница 8: ...metal bar to desired length using the tabs and holes in the rod tightly and evenly wrap the sensor cable around the rod Freely hang ing cables can Cause falsing connect the sensor connector to the electronic unit WARNING Do not over tighten the attachments and fittings for the tel escopic shaft This applies in particular to the plastic bolt for the search coil and shaft collets Departement of inte...

Страница 9: ...es Remember that due to the self discharge nature of the batter capacity falls by About 5 per day so it is advisable to charge batteries before each use DO NOT use rechargeable batteries that have different capacities in the same set WARNING When connecting the battery magazine to the device connector insure the battery is properly connected polarity is indicated on the battery cartridge and insur...

Страница 10: ... design of the panel and control buttons without prior notification On the back panel of the de vice there are a connector for connecting a sensor a switch on off the device and a serial number Only the GT model has a switch for supplying cur rent to the coil and an addi tional gain control fig 3 Departement of international trade https aka md com 74957991510 akadetector yandex ru fig 3 ...

Страница 11: ...ENU The back position is applied a The search on litter b Mineralized soils in combination with the program mode Econo my c For the operational determination of dubious goals 2 An additional gain control is located on the back of the body Attention Gain control is NOT linear All gain values are given from the gain in the MENU of the device The minimum value is the position all the way to the left ...

Страница 12: ...one channel Sets the sensitivity of the threshold RT channel Real Time Sets the volume of the audio short press and On Off illu minations long press Select the Discrimination edit mode Switch between all metals discrimination Button for moving through the menu and changing the value of parameters On Off Turbo mode and On Off Economy mode long press ...

Страница 13: ... Deep Program by a long hold from any other search program Access the Ground Balance modes Button to enter the Main Menu DISPLAY SCREEN In search mode the display device displays the Hodograph information of detected objects and information about the current operation modes Fig 5 VDINumber Signal level Battery charge level T Turbo mode is enabled see page 14 Number of the current user program 1 4 ...

Страница 14: ...oftware allows you to select Russian or English language for displaying information In order to change the language of information display when turning on the device press and hold the button until the language selection menu appears Using the buttons until the language selection menu appears Using the buttons select the desired language and press the button to fix your choice Remember that when y...

Страница 15: ...e volume of the threshold tone rises having the highest value above the center of the target With a gain of experience working with the device a combination of the threshold tone and the tone of the identi fication signal as well as the duration and volume level of the threshold will be able to give you more complete information about the size and relative depth of the target and even about the pr...

Страница 16: ...ll of the above can be summed up in one phrase a high level of sensitivity does not always guarantee high search efficiency Use this adjustment ap propriately for the situation and the search task VOLUME 1 9 This setting adjusts the overall volume of the audio response from detected objects Select the value based upon individual comfort preference The current values of these parameters are display...

Страница 17: ...into the high negative VDI range known as VDI wrap around To minimize this effect it is crucial to perform a proper and accurate ground balance procedure The basic objectives of balancing 1 Make the soil invisible to the instrument i e exclude false signals from the ground where there is no target 2 Install the correct standardized reference system number for the VDI When receiving a signal from b...

Страница 18: ...amics can be used In the absence of these items you can take a CD and in a search mode hold them flat in front of the coil If the CD gives a vertical hodograph and VDI of 0 1 or 1 then the device is ready for air tests If the VDI of the CD differs from these values then in auto GB click and adjust the phase of the ground balance in the desired direction When the VDI of he CD is at 0 1 or 1 your de...

Страница 19: ...to balance near a metal object in the ground In this case the device may perform a ground balance however it will be incorrect and you will notice multiple false signals from the ground If this occurs simply re balance the detector in an area clear of any metal targets Attention In automatic balancing mode do not turn off the device Otherwise the balance data will not be stored in the device memor...

Страница 20: ...u want to review the results and values of the current automatic to enter manual mode and disable automatic balancing In the upper right corner of the screen will appear M instead of the letter A To exit the ground balancing click Switching between modes is as simple as performing successive clicks of While in the manual balance mode by pressing and one is able to adjust Departement of internation...

Страница 21: ...ne on the screen will not be horizontal Press and until the line is horizontal and the buzz disappears Your device is fine tuned to the ground For a small increase in the depth of the identification of large silver and copper coins kettles basins and other large pieces of highly conductive metals it is possible after performing automatic ground balancing to enter the manual balance mode and set th...

Страница 22: ...r an air test will also work and you may set the balance point 1 or 2 degrees negative if you are searching for large objects Sharp temperature changes on the search coil may impact balancing accuracy the balance may shift and become incorrect with such changes That is why if you take the device from a heated car and start working in a low temperature conditions early spring late Fall rebalance on...

Страница 23: ... soil vector on the screen loops in the absence of metal of course then this is a strong signal from the soil dampness with a conductive medium electrolyte Accordingly the greater the current gain amplitude of the swing at the balance the more difficult it will be for the device This is equivalent to screaming a phrase to a person directly in the ear He will go deaf and understand nothing Conseque...

Страница 24: ... ground is quiet it will not give a false signal DISCRIMINATION SEARCH MODE AND SETUP Discrimination is the ability of the device to respond to certain types of objects and ignore the others For example you can configure the appli ance so that it will respond only to objects of non ferrous metals while ignoring everything else In some cases this allows you to increase the comfort of the search Be ...

Страница 25: ...ensitivity of the RT to a comfortable value Now by positioning sector you can set the To configure the discrimination click the left and right edges of the search desired area level of discrimination At the top left and top right of the screen are the current values of the search sector These are in degrees of inclination relative to the vertical axis of the screen The currently selected border se...

Страница 26: ...ifying these hot rocks can be done by noting the high ratings from the VDI 86 and the stretching of the signal The combination of the sound of the ST and RT channels for such stones is similar to pulling and releasing the elastic according to the figurative description of experienced operators This will act much the same as all metal accept with the elimination of the hot rocks You may also use th...

Страница 27: ... choice of this parameter will depend on the relief of the ground littered area temperature changes etc As already mentioned the active mode pinpoint is used to determine the exact location of the object Let us give some practical tips on how to use this mode After locating an object in the static mode and deciding it is worth digging it is time to de fine its exact location To do this move the se...

Страница 28: ...creases current consumption and as such battery operating time is greatly reduced The identification of shallow deep targets also become worse due to an increase in the ground signal Switch to TURBO and back by using the button while in search mode It is necessary to ensure that the settings ST RT sensitivity and volume on the display screen are not displayed Turbo mode is enabled separately for e...

Страница 29: ...on After switching to Economy mode it is advised to ground balance the device For reference the detection range in this mode when air testing a large 43cm copper coin such as a Victorian Penny is approximately 35cm 10 DD coil 6 5 7 kHz Thanks to the significant reduction in the consumption of power in this mode you can run up to 40 hours on a set of fully charged batteries Switching to the turbo i...

Страница 30: ...orithm is in identifying small flat iron objects 15 cm2 such as beer caps rusted pieces roof tin etc with a signal rating greater than 10 If the device detects an object with a questionable non ferrous signal high tone and it has a rating over 10 then using the S Algorithm can help to identify these type targets There is no need to use this algorithm for a definitive low pitched signal i e when th...

Страница 31: ...ty to search effec tively for both large and small targets many manufacturers produce 2 3 or 4 frequency metal detectors Signum MFT 7272М allows you to work with coils with the operating frequencies from 1 to 30 kHz thus maintaining acceptable sensitivity to almost any type of target The metal detector can be equipped with the following sensors 15DD 3 7 kHz 9 5 x12 5DD 7 3 14 kHz 10DD 7 3 kHz 6h10...

Страница 32: ...z Frequency optimized for small and medium sized coins es pecially when the latter are located on edge This frequency is the best choice for hunting on the saltwater beach 20 kHz the frequency is very tenacious to small jewelry which means it is well suited for beach searches PARAMETER MENU By pressing the button you have access to a number of addi tional parameters which are divided into 3 groups...

Страница 33: ...ping of the coil will occur In these situations it is recommended that you use the search modes AF1 AF2 AF3 where AF indicates the presence of an additional filtering algorithm of the signal These modes can also be useful in areas with high levels of electromagnetic interference EMI However it should be remembered that such filters may slow down the detector process speed Advice from an experience...

Страница 34: ...at this action should in no way replace the procedure for ground balancing and only adjusts the balance of soil in small amounts dur ing the search In some cases large amounts of metal trash or a cluster of hot stones AT may not work properly In these circumstances you should disable the AT Attention If the device has not been used for a long time for correct opera tion of auto tracking it is nece...

Страница 35: ... 7 8 9 10 pressing in any direction of the bias are designed to leave the resonant operating frequency of the device If during the first 5 presses the frequency change is minimal by a few tens of Hertz depending on the operating frequency then with the next 5 presses the frequency change step increases sharply tens to hundreds of Hertz With such a strong change in the operating frequency from the ...

Страница 36: ...ance setting to the 1 2 scale you can increase and thoroughly examine a low signal hodo graph Scaling 1 7 you can evaluate signal levels in a wider range by the size of the picture respectively SOUND SETTINGS Sound Mode RT RT M RT М99 RTL ST RT ST ST P There are 6 types of sound modes RT Real Time In this mode the audio output is in sync with the move ment of the coil As the coil approaches the ta...

Страница 37: ...s the operation of an analog device simultaneously has all the pros and cons of an analog device It should be remembered that when this mode is working the hodograph on the screen continues to be processed by the SFT algorithm That is it is output after the sound and may not match the tone That is a situation may arise when a real time sound will voice the target with a non ferrous signal and the ...

Страница 38: ...medieval daggers or coins within debris When setting the boundary of the LT remember these facts in order to not miss valuable targets when searching under these conditions So if we receive a good tone even if the hodo graph indicates a loop with 95 confidence we can say that this is possibly a good non ferrous target Together with the separation rate of the MM search mode this setting will increa...

Страница 39: ...s objects In the case of overloading the electronic circuit due to large or shallow targets under the coil the device will issue an audible and visual alarm overload ADDITIONAL MENU ADD Menu The menu is in addition to the main options menu this sub menu ex tends the capabilities of the sound and the display options as well as an option to adjust the autotuning of the balance to the soil To enter t...

Страница 40: ...m program For example if you decide to set the length of the ST for pro gram 2 you need to first enable program 2 then enter the Addition al menu for settings TONE SETTINGS In this menu you can adjust the audio VDI boundaries for the RT tones to suit your particular needs By narrowing or expanding the bound aries of tones you can achieve the fact that the groups of goals that are characteristic of...

Страница 41: ...ETTINGS Duration ST This parameter sets the level of the duration of the tone bursts in the Sound Modes RT ST and RTL ST The far left position corresponds to the shortest tone duration It is configured separately for each program Volume RT Adjusts the sound volume of the RT through the detection channel There are 9 gradations where 3 is standard volume of RT for AKA devices without processing From...

Страница 42: ... on a mathematical algorithm that according to a number of physical attrib utes separates the signals of metal targets filtering them for sounding and the signals of the difference in soil mineralization which are not sounded This is necessary when working on wet salted soils for exam ple spring arable land saturated with fertilizers The filter is especially effective when using large sensors 10 a...

Страница 43: ...both ST and RT channels without filtering for possible target signals and signals from the soil Adjustment of the GS zone is carried out in the range from 00 to 80 in increments of 0 25 degrees similar to the GS Filter For example to set the GS Zone to exclude all signals in the sectors 89 88 87 you need to set its value 12 However it is better to choose a setting according to the situation grad u...

Страница 44: ...ach program the user may choose to set the value of any of the available options To switch between user programs press button The currently selected program is displayed in the lower right hand corner of the display A long press of this button switches the Deep Program DP and the second long press exit back to the program from which was DP turned on For version with DP Otherwise you enter the norm...

Страница 45: ...ime with a large amount of slag and brick you can also shift the operat ing frequency from resonance see Chapter Operating Frequency p 21 Program 3 is the main search program for an experienced user com bining sufficient comfort with a very high sensitivity If necessary it is possible to increase the sensitivity by increasing the settings of the RT ST and Gain of the device Program 4 for cases whe...

Страница 46: ...e the company reserves the right without notice to change the value of the factory settings DEEP PROGRAM DP This program is an addition to the Signum software MFD 7272M and must be purchased separately Or when purchasing the Signum MFD 7272M version is included in the software located on the place of program 4 The program is designed to search for large objects at a depth in the ground including i...

Страница 47: ... on the DP mode in the Settings Menu Search Options Search terms The transition to program 4 is carried out both by sequentially sorting factory programs by pressing a button and by holding the button from any other work pro gram In the second case a repeated long press of the button returns to the program from which the Deep Program was turned on DEEP PROGRAM SETTINGS Factory preset settings allo...

Страница 48: ...e are two filters Filter T and Filter A The filter for adjustment is selected by pressing the button value and filter using the buttons and Filter T has 22 adjustment values from 01 to 22 This filter is used to set the cutoff threshold for short signals that is the larger the targets are searched the greater the value of this filter can be set At the same time the response of the device to shaking...

Страница 49: ...t signals As in all other programs the value of the GS Filter and the GS Zone af fect how the program works For more information about their purpose see the corresponding section of the manual RECOMMENDATIONS FOR TARGET SIGNALS The vast majority of large targets for this search mode have fairly pro nounced two way signals including when cross checking crosswise and their hodographs in the absence ...

Страница 50: ...nductive continental layer It can be formed as a result of the occurrence of frost cracks and ice wedges of the ice age later melted and slowly replaced by red clay with a high content of fer rous mineral It can also be formed as a result of the movement of part of the soil by a glacier or landslide mountainous areas and as a result of human activity One example is the ancient pits excavated and b...

Страница 51: ...ing into account the excavations not by one two shovels but by a meter or even more the efficiency will be low and fatigue and disap pointment will come very quickly Remember that in the vast majority of cases a large target will give a clear noticeable two way signal From this and begin your development of DP When you master it enough to in most cases understand what is in the ground with a parti...

Страница 52: ... of non ferrous metals and large ferromagnetic objects lie in the right quadrant positive vector angle the larger the area of the surface of an object the higher the electrical conductivity hence the greater the slope of the hodograph to the right travel times of medium and large ferrous objects as a rule have the shape of a loop hodographs of non ferrous metal objects are mainly straight a proper...

Страница 53: ...l the detector stops playing the melody and the screen for a short time will display the value of the work ing frequency of the coil Attention The exact frequency displayed can vary depending on the coil and software and is automatically calculated by the device For example a Coil with a frequency 7 0 kHz can vary 20 Hz After this your device will automatically navigate into the ground bal ancing ...

Страница 54: ...onstant distance of 2 3 cm This distance is optimal from the viewpoint of suppressing the influence of ground mineralization and hence for the proper identification of the metal objects Avoid touching the ground with the coil It is important that the distance between the coil and the ground remain constant see Figure 16 Keep in mind that the quality of this operation has a direct impact on the cor...

Страница 55: ...ated along the perpendicular plane of the scan or the coil the device will issue a single low frequency short tone It is important to note that the DD sensor is characterized by a complex pattern when interacting with metal objects close to the coil or the near zone signal levels greater than 80 Therefore when trying to deter mine the target ID adjust the coil height to a level that will give a si...

Страница 56: ...at the point of location of the object At the same time the stone is distinguished by a long elongated RT and belated ST signal after the coil is carried over it As if they pulled RT and released ST the elastic As you know a particular problem for induction metal detectors is the identification of flat ferromagnetic objects such as steel caps stoppers lids cans etc objects with a relatively large ...

Страница 57: ... it is a cap Do not forget to monitor the signal level This algorithm works effectively only when the signal level is 10 or higher Analyzing these types of questionable targets is made much easier and does not require as much user experience The main job of identifying is performed by the processor Examples of the hodographs for the same cap stopper using the S mode algorithm is shown in Fig 18 S ...

Страница 58: ...he Hodograph loops will depend on the ratio of the size of these objects and the distance between them SEARCHING FOR METAL OBJECTS WITH LARGE EDDY CURRENT LOOPS These types of objects include for example large copper silver coins and other large planar objects of non ferrous metals with a diameter greater than 40 mm Due to the particular interaction between the search coil and these types Fig 25 ...

Страница 59: ...o a significant loss of sensitivity to the large copper silver coins or an undesirable annoying response to hot rocks if the algorithm DHR is not used Note that when setting the ground balance such as on loam the angular difference between the signal and the signal of large copper silver coins is about 7 8 degrees At the same time the angular difference between hot rocks is only 4 5 degrees which ...

Страница 60: ...ST reduce the angle of the phase by pressing button until their disappearance When searching on the wet grass dew rain there is an increased risk of false signals in the ST channel This effect manifests itself mainly due to the setting of high values of sensitivity in the ST channel and to the presence of a weak electric conductivity in the dew and plant liquids To a large extent almost completely...

Страница 61: ...s cartwheel penny King George coppers Victorian penny UK pound coin US dime Quarter Half dollar and dollars as well as large Planar or spherical iron objects helmets plows axes very large objects from deep highly conductive metal e g aluminum basin a large silver tray Hot Stone signals differ in that they sound stretched while the signal from the metal target is usually concentrated in a small poi...

Страница 62: ...rranty period 24 months starting from the sale date Manufacturing defects shall be repaired by the Manufacturer during the warranty period free of charge provided that there is no damages in electronic module and searchcoil This Operating Manual with the sale date mark should be provided to gether with the device in case of warranty repair Warranty period is cal culated from the date of manufactur...

Страница 63: ...ull on the cable as this may cause damage to it In this regard false signals or a complete sensor shutdown may appear This fail ure also is not a warranty case Any mechanical damage impact on a stone cracks in the case is not a warranty case WARRANTY FOR SEARCH COILS Attention Be careful When using two frequency and three frequency coils when switching the frequency do not forget to tighten the pr...

Страница 64: ...7991510 akadetector yandex ru QA QC certificate Metal Detector CLASSIK GT ICB __________________ Date of manufacture ____ ________________20____y Manufacturer s Stamp QA QC Passed ____________________ Signature Sale Date Sale Date ______ ________________20____y ...

Страница 65: ...65 Departement of international trade https aka md com 74957991510 akadetector yandex ru ...

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