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Whites MXT Скачать руководство пользователя страница 28

28

Chapter 5 GMT Searching

Relic MODE

1. MODE to Relic.

2. Trigger (on hand grip) center "primary Search-
ing" position.

3. TRAC to Ground position.

4. GAIN to "P" position.

5. Threshold, adjust for slight hum (edge of
sound).

6. DUAL CONTROL to DISC "P".

7. Pump the search coil on the ground to be
searched until ground ceases to respond.

8. Move the coil just over the ground and listen for
the distinct repeatable beep (high or low tone)
produced by a metal targets. It is wise to plant
metals just under the soil to practice on in order to
learn to recognize what it will sound like. Planting a
metal target disturbs the ground mineral, which
usually reduces the depth it would have been found
in undisturbed ground. It will take practice to
determine the proper search speed and technique.
Do not go too fast. Try to overlap your sweep path
so that you won't miss the small and/or deeper
metal targets. Targets to deep or small to achieve
good tone identification will sound at the threshold
level tone.

9. Once a solid repeatable beep is located:

A. Consult the display information.

B. Squeeze and hold the Trigger on the
hand grip and "X" the area to pinpoint and
note how deep you will need to dig listed on
the display.

OPTIONAL method for lesser interest in iron
and/or quieter searching:

10. Lock Trigger (on hand grip) forward.

A. Rejected targets are now suppressed
rather than indicating a lower pitched beep.

11. Ferrous (iron) / Nonferrous (not iron) I.D.
(Archeologist) or Mixed Mode.

A. Lock Trigger (on hand grip) forward.

B. Set DISC control to "0".

C. Ferrous (iron) indicates with a lower
pitched beep.

D. Nonferrous (not iron) indicates with a
higher pitched beep.

E. Some loop motion is required for
detection and identification to occur.

12. Ground Mineralization:

A. For Salt/Alkali environments proceed
exactly as above only with the TRAC toggle
in the Salt position.

B. For areas with an abundance of
decomposed man made iron (which may
make the MXT difficult to operate), proceed
exactly as above only once you pump the
loop over the ground in the Ground TRAC
setting, then set the TRAC control to Lock.

Chapter 6 MXT Searching

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Содержание MXT

Страница 1: ...elry 8 9 Relic 10 11 Prospecting 12 13 Chapter 5 Controls 14 Mode 14 15 Trac 16 17 Gain 18 19 Dual Control 20 22 Disc 20 21 SAT 22 Threshold 23 Chapter 6 Searching 24 Pinpoint Technique 24 Headphones 25 Field Use Tuning Tips Coin Jewelry 26 27 Field Use Tuning Tips Relic 28 29 Field Use Tuning Tips Prospecting 30 31 Chapter 7 Information 32 Proper Care 32 Service 33 Warranty 34 Warranty Transfer 3...

Страница 2: ...nto second flap CARRY CARTON CABLE RETAINER LOOP OR SEARCH COIL Remove decal paper from the two rubber bumpers Install on the bottom of the control box one in each of the front corners shown below by X Press in place and hold firmly for a few seconds then release CABLE RETAINER 1 VDI Numbers 2 Target Identification 3 Iron Probability 4 Target Signal Strength 5 Target Depth 6 Pinpoint Location 7 Ba...

Страница 3: ...le with your arm in the elbow cup with strap secure and sweep the loop search coil over the floor If the instrument fit feels uncomfortable adjust the elbow cup by removing and repositioning the bolt thumbnut and installing in one of the optional positions If necessary readjust clevis lower rod length with the spring clip buttons so that the search coil can be held near the floor without requiring...

Страница 4: ...two latches on the bottom of the case Hook the front of each latch first then press down on the rear Standard Battery Holder 1 The standard battery holder holds eight AA cell batteries equalling 12 volts total Alkalines are recommended for use with this model During normal searching conditions you can expect about 40 hours of hunting time from a quality set of eight alkaline batteries 2 Non alkali...

Страница 5: ...lways a good idea to carry 8 extra penlight alkaline batteries with you Rechargeable Battery Opt A rechargeable battery system is not standard equipment with your MXT however high quality systems are available White s rechargeable battery 802 5211 and charger 509 0022 are recommended and offer quick charge and overnight charge options Rechargeable batteries deliver fairly constant voltage until th...

Страница 6: ...eed at which the THRESH OLD hum recovers from the affects of inconsistencies in ground mineralization THRESHOLD Control Establishes the slight background sound faint hum or edge of sound that is heard continu ously during searching Once this edge of sound has been located some operators prefer to adjust slightly counterclockwise of it to achieve silent search no continuous background hum during se...

Страница 7: ...s of electrical interference set TRAC to LOCK and or reduce GAIN counterclockwise slightly and try again It is normal to hear very slight fluctuations in the THRESHOLD hum as the MXT tracks out the ground mineralization When operating in the Prospecting Mode first try reducing the Gain and or increasing the SAT speed SAT speeds as high as HYPERSAT may be necessary in some ground conditions If Gain...

Страница 8: ... 8 volts is surely the end of their performance If you are using quality alkaline batteries you do have a reserve after 8 volts The MXT utilizes a low voltage regulator Quality alkaline batteries will provide normal performance in a pinch well into the LoBat indication Coin Jewelry MODE The Coin Jewelry MODE provides 5 different significant indications on the display 1 VDI number The VDI Visual Di...

Страница 9: ...he bottom of the search coil the DEPTH 12 provides not only an aid in better locating the target in the ground how deep you will need to dig but also clues as to if the metal target is likely worth digging For example if the display is unsure quarter block indication is indicating in the FOIL range and the depth reads deep 6 to 12 inches you should dig the target Only the heavier more valued targe...

Страница 10: ...locks as Coin and Jewelry mode to further confirm on the reference label the connection between the VDI number and software s best determination of the target identity The verti cal size one quarter one half or the whole block tells one how sure the MXT is of the target ID Full bar and half bar usually means dig Quarter blcoks are uncertain 3 Labels In Relic mode you will see target ID labels in t...

Страница 11: ...if the item is worth digging A 6 12 Depth reading and any Block indication means dig Shallower targets and a quarter or half size block suggests trash This is because the heavier more desirable targets settle deeper into undisturbed ground The shallower Depth readings should have full Blocks to warrant digging Chapter 4 MXT Display NOTE Before squeezing the trigger the quarter Block reading says t...

Страница 12: ... number tends to jump back and forth from small negative numbers to small positive numbers it is usually a small piece of some metal and should be investigated by digging Remember small flakes of gold in bad ground can read into the small negative range A magnet on your digging pick can sort out a small shard of iron quickly 2 IRON TARGET Indicates the likelihood the target is ferrous iron express...

Страница 13: ...avier materials black sands When searching you notice the ground phase is declining lowering in number generally you are working further away from the heavy black sand deposits If you notice the ground phase is increasing generally you are working toward closer to the heavier deposits By following the more intense ground phase you increase your likelihood of finding nuggets B Checking outcropping ...

Страница 14: ...splay provides a screen that indicates the depth of coin sized targets Once released the trigger will automatically return to the Center Primary Search position DUAL CONTROL DISC P Preset While operating in the Coin Jewelry MODE The DUAL CONTROL functions as a traditional dis crimination control Further clockwise settings provide greater degrees of trash metal rejection Further counterclockwise se...

Страница 15: ...er degrees of trash metal rejection Further counter clockwise settings provide lesser degrees of trash PROSPECTING MODE Trigger on hand grip Center Position Pri mary Searching iron audibly grunts While operating in the Prospecting MODE iron targets 80 and over produce an audio grunt when detected Forward position Alternate Mode Without Iron Grunt all targets same audio The audio produces the same ...

Страница 16: ...ade iron decomposes to the point of tricking the Ground and Salt position tracking into thinking it is a mineral ized part of the ground This can create noise and instability during searching as the tracking system bounces radically up and down the scale always searching for a good ground rejection setting and is never able to find it This makes it difficult for an operator to recognize worthwhile...

Страница 17: ...ample or alkali desert regions The Ground setting will not track into the nonferrous metal region The Salt setting will The MXT ground rejection system is capable in both the Ground and the Salt settings of considering some iron a ground mineral If operating in a known salt area salt water beaches for example it is not necessary to balance in the Ground TRAC setting Simply select the Salt TRAC set...

Страница 18: ...IN till the overload warning ceases On occasion while searching you might sweep the loop over a very large or very shallow target The message on the LCD display will read OVERLOAD RE DUCE GAIN LIFT LOOP All such targets should be checked by sweeping the loop a little higher over the area and noting the display and audio indications The MXT will self correct after the message and you can continue t...

Страница 19: ...s range As the MXT shifts between these two intricate parts of the circuitry an audio indication notes the transitions This can be helpful If you adjust the Gain slightly the audio notes a significant rather than slight change 9 The MXT provides more GAIN control range than is typically useful assuring performance is not left on the plate due to restricted assess range Likely few areas will allow ...

Страница 20: ... more trash metals including aluminum pull tabs The display will continue to indicate I D even though the audio discriminator will signal with a reject suppressed or broken sound Nickels and some jewelry will also be rejected with DISC settings much greater than P The P position is recommended for most MODES If when searching at the P position you feel you are digging too much trash adjust DISC sl...

Страница 21: ...to be rejected by theDISC control setting produce a lower pitched beep targets accepted by the DISC control setting produce a higher pitched beep Some search coil motion is required to achieve detection with either tone 4 Ferrous iron Nonferrous not iron tone I D Relic Mode A While operating in the Relic MODE with the Trigger on the hand grip in the forward position and the DISC set to 0 Ferrous i...

Страница 22: ...true target is the most important part of detecting This is an example of when less GAIN will produce more nuggets You must be the best judge of just how much noise you can tolerate and still identify nuggets and thus the amount of SAT and GAIN to use to produce the desired results in your area Therefore if you have been operating your MXT at the full level of GAIN 3 and you determine that this is...

Страница 23: ... thus you can set the hum faster and more accurately Set the knob all the way to the left or counterclockwise and then rotate it clockwise until the faintest audible level of hum is attained edge of sound If the hum disappears for any reason other than bumping the control you may be either swinging the coil too fast or your GAIN control is set too high or in the prospecting MODE you may need to in...

Страница 24: ...iques for examining the pile of dirt are discussed later in the manual Again the procedure is to sweep over the target from side to side noting the side to side center Then turn 90 degrees and sweep the coil side to side noting the center from this new direction X marks the spot that you need to dig You can prac tice with a coin or small pieces of lead or gold on top of the ground to become acquai...

Страница 25: ... sure they have a VOLUME CONTROL as there is no target vol ume control on the GMX This is an important comfort issue Remember that you want the faintest THRESHOLD hum possible but a strong comfortable target signal With headphones you will be able to work with a lower THRESH OLD hum hear fainter target signals avoid bothering others with a beeping box and save on battery life Many high quality hea...

Страница 26: ...located A Push the Trigger forward and sweep the search coil over the target area 1 If it still beeps it is likely a coin worth digging procede with 2 a If it doesn t beep it is in the Pull Tab range Squeeze and hold the Trigger on the hand grip and check the depth If it is shallow 0 2 inches depending on the hardness of the ground it is most likely a Pull Tab and should be ignored If it is deeper...

Страница 27: ...The 3rd choice is the alternate MODE Pull Tab Notch accessed by pushing the Trigger on the hand grip forward Many prefer after locating a target in the primary Trigger center position to check targets with the Pull Tab Notch others use the Pull Tab Notch as their primary search mode It depends a lot on the area and degree of aluminum Pull Tabs present Remember the display will indicate if a metal ...

Страница 28: ...n will sound at the threshold level tone 9 Once a solid repeatable beep is located A Consult the display information B Squeeze and hold the Trigger on the hand grip and X the area to pinpoint and note how deep you will need to dig listed on the display OPTIONAL method for lesser interest in iron and or quieter searching 10 Lock Trigger on hand grip forward A Rejected targets are now suppressed rat...

Страница 29: ...rovide where as others prefer to push Gain to the limits of their patience to find the deepest targets There is a point of diminishing returns either indi cated by the display telling you to lift the loop due to a Gain setting too high for the ground or a user missing targets because they can not sort them from sporadic noise experienced at high Gain The 3rd and 4th choices are the traditional dis...

Страница 30: ...hnique Do not go too fast Try to overlap your sweep path so that you won t miss the small and or deeper metal targets 9 Once a solid repeatable VCO beep is located A Consult the display VDI number and Iron B Squeeze and hold the Trigger on the hand grip and X the area to pinpoint OPTIONAL method for iron 10 Lock Trigger on hand grip forward A Ferrous iron targets now sound the same as all other me...

Страница 31: ...trol SAT clockwise and try again An area littered with man made iron would dictate the Lock setting On the other hand an area with very inconsistent ground would not such an area would dictate Reduced Gain and or higher SAT settings The 2nd choice is Gain Some areas require and some operators just prefer the more predictable operation normal P or reduced Gain settings provide Where as others prefe...

Страница 32: ...om a dig C Do not use any lubricants such as WD 40 on any part of your detector D Do not modify your instrument during its warranty period I Cleaning A Both the coil and rod are waterproof and can be cleaned with fresh water and mild soap The control box is not water proof and must be kept dry Never lift a wet coil above the height of the control box as water can run down the inside of the rod dam...

Страница 33: ...lity products backed by quality service Our Factory Authorized Service Centers are factory trained and equipped They offer the same quality service as the factory Service before and after the sale is the cornerstone of our customer relations White s Authorized USA Service Centers Centerville Electronics 13810 B Braddock Road Centerville Virginia 20121 Toll Free 1 888 645 0202 Fax 1 703 222 8625 E ...

Страница 34: ...ed out and returned to the factory address by your dealer soon after original purchase for the purpose of recording this information and keeping you up to date regarding White s ongoing research development The warranty does not cover damage caused by accident misuse neglect alterations modifications unauthorized service or prolonged exposure to corrosive compounds including salt Duration of any i...

Страница 35: ...__________________________________________ ________________________________________________________________ Instrument Serial Number __________________________________________ Original Purchase Date _____________________________________________ New Owner Name __________________________________________________________ Address ________________________________________________________ ________________...

Страница 36: ..._________ inside of battery compartment Purchase Date __________________________ The date on the sales receipt Dealer Name _____________________________________________________________________ Address ___________________________________________________________________ Telephone ________________________________________________________________ Payment method _________________________________________...

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