Table of Contents
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Chapter 1 Assembly ............................................................................... 2
Assembly Instructions ......................................................................................................................... 3
Chapter 2 Batteries ................................................................................. 4
Standard Battery Holder ...................................................................................................................... 4
Rechargeable Battery (Opt.) ................................................................................................................ 5
Battery Check ...................................................................................................................................... 5
Chapter 3 MXT Quick Start .................................................................. 6
Chapter 4 Display ...... ............................................................................8
Coin & Jewelry ................................................................................................................................ 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
Chapter 7 Information.......................................................................... 32
Proper Care ........................................................................................................................................ 32
Service ............................................................................................................................................... 33
Warranty ............................................................................................................................................ 34
Warranty Transfer .............................................................................................................................. 35
Video and Owner Information ........................................................................................................... 36
MXT Table of Contents
MXT Table of Contents
1
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Summary of Contents for Whites MXT
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Page 1: Table Of Contents
Standard Battery Holder ........................4 Using the Standard Battery Holder ........................4 Rechargeable Battery (Opt.) ........................ 5 Battery Check ............................5 Chapter 3 MXT Quick Start ..............6 Chapter 4 Display ..................8 Coin & Jewelry ..........................8-9 Relic .............................10-11 Prospecting ..........................12-13 Chapter 5 Controls ................ -
Page 2: Chapter 1 Assembly
Chapter 1 MXT Assembly Assembly WASHERS Twist and insert each end of BETWEEN handle (provided) through top EACH LOOP of shipping carton into EAR & CLEVIS second flap. (CARRY CARTON) LOOP OR SEARCH COIL DISPLAY 1/ VDI Numbers 2/ Target Identification... -
Page 3: Assembly Instructions
Chapter 1 MXT Assembly Assembly Instructions 1. Remove all parts from shipping carton and readjust clevis/lower rod length with the spring check the assembly page to make sure all parts are clip buttons so that the search coil can be held near present. -
Page 4: Chapter 2 Batteries
3. The battery voltage appears automatically on the display when the Gain is used to turn the MXT "ON". Once the batteries become weak (8 volts) "Lo Bat" will automatically appear on the display during searching. At that point the batteries should be replaced. -
Page 5: Rechargeable Battery (Opt.)
Non-rechargeable batteries will start to drop in A rechargeable battery system is not standard voltage as soon as they are put into use and then equipment with your MXT, however, high quality steadily diminish in voltage till they die. The Nicad systems are available. -
Page 6: Chapter 3 Mxt Quick Start
MODE Toggle Three position switch for setting operating mode. Coin & Jewelry, Relic, Prospecting. GAIN Control Turns the MXT ON/OFF and adjusts the signal strength of targets, ground, and electrical interference. DUAL CONTROL THRESHOLD Control In Coin & Jewelry and Relic Modes Establishes the slight background sound "faint... -
Page 7: Quick Start Instructions
Set the Trigger Switch (under the hand If you attempt to demonstrate or test the grip) to the center (Primary Search) MXT by waving targets in the air in front position. of the search coil, it is ESSENTIAL to Set the MODE toggle to the position that... -
Page 8: Chapter 4 Display
The MODE selection changes the type and content of the information shown by the display better suiting the MXT to the application, Coin & Jewelry, Relic, or Prospecting. In all MODEs, the display will momentarily show a software version and battery voltage upon first turning the GAIN "on". - Page 9 A full block indicates the MXT is confident of indication. A half block indi- cates the MXT is not confident but is making an educated indication. A quarter block indicates the MXT is not confident at all, guessing based on what little information the target is producing.
- Page 10 The verti- cant indications on the display. cal size (one quarter, one half, or the whole block) tells one how sure the MXT is of the target ID. Full Mode toggle bar and half bar usually means dig. Quarter blcoks switch Center are uncertain.
- Page 11 Chapter 4 MXT Display 4. Depth Indication - Trigger (on hand grip) 5. PP Blocks - Relic mode Pinpointing works the squeezed and held, the display indicates the depth same as in Coin and Jewelry mode. With the trigger of coin sized metals. Just as in the Coin and Jewelry...
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Page 12: Prospecting
IRON targets and only when small piece of gold in very bad ground to read 70% possible. The MXT displays information which is probability of being iron. Remember when in intended to help the user determine whether the doubt...DIG. - Page 13 Chapter 4 MXT Display 3. GND - Indicates the phase (measurement) of the ground . This is useful in two different environ- ments. A. Within a dry wash the gold will settle Ground phase indications are a doubled edged with the heavier materials (black sands).
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Page 14: Chapter 5 Controls
Chapter 5 MXT Controls Chapter 5 MXT Controls Controls COIN & JEWELRY MODE *Trigger (on hand grip); MODE Center Position "Primary Searching" (tradi- tional DISC control) . In other words with the Trigger on the hand grip in the center position, the... -
Page 15: Mode
DISC control set in any typical trash rejection setting, discrimination against trash metals occurs order for the MXT to recognize a target in mineral- like any traditional metal detector in that metals ized ground it must first be able to cancel the ground mineral. -
Page 16: Trac
(ground type) are provided. The Ground position is used for normal or typical ground conditions. In this position the MXT will quickly compensate for ground minerals in a few pumps of the search coil over the ground being... - Page 17 Salt water beaches for example 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.
- Page 18 (deep or small targets) can be detected. This is where the new MXT can help you out. When ground mineralization is too high for the current GAIN control setting, the display indicates "OVERLOAD-REDUCE GAIN/LIFT LOOP"...
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Page 19: Gain
OLD "hum" doesn't continue, or if ground noises are a problem reduce GAIN. 7. The trash I.D. capability of the MXT also func- tions more accurately when the GAIN is set at a level which allows for smooth operation. Too much GAIN can cause bad ground to distort the proper identification of iron and non-iron targets. -
Page 20: Dual Control
(furthest counterclockwise) position that eliminates the common trash metals in your area is important in order to find items of jewelry. The MXT provides six significantly different DISC (Discrimination) modes. 1. Traditional DISC mode is available; A. In the Coin & Jewelry MODE with the... - Page 21 Chapter 5 MXT Controls Chapter 5 MXT Controls When a trash metal is being rejected in a Traditional 4. Ferrous (iron) & Nonferrous (not iron) tone DISC MODE, it will produce no beep at all or a I.D. (Relic Mode).
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Page 22: Sat
Therefore, if you have been operating ization. This can be heard as chatter when exces- your MXT at the full level of GAIN (+3) and you sive. Faster SAT speeds tend to calm this interfer- ence allowing for target sounds to be separated determine that this is too high because either the from ground noise. -
Page 23: Threshold
Threshold Adjustment The MXT has an improved microprocessor driven THRESHOLD control that is adjusted with a single turn. It does not, therefore, require a 10 turn pot for precise adjustment. Digital software provides much higher resolution, thus you can set the "hum"... -
Page 24: Chapter 6 Searching
Chapter 6 MXTSearching Chapter 5 MXT Controls Pinpointing Pinpoint Technique Due to the wide scan nature of modern search coils it can be difficult to locate small targets under the physical center of the loop. Use an "X" marks the spot technique as shown in the diagram to identify the portion of ground the metal target is in. -
Page 25: Headphones
Chapter 6 MXT Searching Chapter 5 MXT Controls Headphones The headphone jack on the GMX is located on the control box above the battery compartment. There is a dust cover on the headphone jack that needs to be removed before the stereo plug from the head- phone is inserted. -
Page 26: Field Use & Tuning Tips "Coin & Jewelry
B. For areas with an abundance of the display. decomposed man made iron (which may make the MXT appear unstable only during search coil sweeps), proceed exactly as above only once you pump the loop over the ground, then set the Trac control to Lock. - Page 27 Chapter 6 MXT Searching Chapter 6 MXT Searching Coin & Jewelry MODE The 3rd choice is the alternate MODE "Pull Tab The Coin & Jewelry MODE provides good general Notch" accessed by pushing the Trigger (on the purpose searching for a wide variety of targets and hand grip) forward.
- Page 28 (which may in undisturbed ground. It will take practice to make the MXT difficult to operate), proceed determine the proper search speed and technique. exactly as above only once you pump the Do not go too fast.
- Page 29 Chapter 6 MXT Searching Relic MODE There is a point of diminishing returns either indi- The Relic MODE also provides good general cated by the display telling you to lift the loop due purpose searching for a wide variety of targets and...
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Page 30: Field Use & Tuning Tips "Prospecting
B. For areas with an abundance of decomposed man made iron (which may 4. GAIN to "P" position. make the MXT difficult to operate), proceed exactly as above only once you pump the 5. Threshold, adjust for slight hum (edge of loop over the ground in the Ground TRAC sound). - Page 31 Chapter 6 MXT Searching Chapter 6 MXT Searching PROSPECTING MODE The Prospecting MODE will require greater pa- The 2nd choice is Gain. Some areas require, and tience to use compared to the Coin & Jewelry and some operators just prefer, the more predictable Relic MODEs.
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Page 32: Chapter 7 Information
Chapter 7 MXT Information Chapter 7 MXT Information Information Proper care I. Cleaning III. Storage A. Both the coil and rod are waterproof and can A. When the instrument is not in use, make sure be cleaned with fresh water and mild soap. The it is turned OFF. -
Page 33: Service
Chapter 7 MXT Information Chapter 7 MXT Information Service White’s reputation has been built on quality products backed by quality service. Our Factory Authorized Service Centers are factory trained and equipped. They offer the same quality service as the factory. -
Page 34: Warranty
Chapter 7 MXT Information Chapter 7 MXT Information Warranty If within two years (24 months) from the original Duration of any implied warranty date of purchase, your White's detector fails due to (e.g., merchantability and fitness for a particular defects in either material or workmanship, White's... -
Page 35: Warranty Transfer
Chapter 7 MXT Information Warranty Transfer If for any reason you should sell your MXT prior to the date the warranty expires, the remaining warranty is transferable. This transfer is authorized by calling 1-800-547- 6911, and getting an Authorization Number. -
Page 36: Video And Owner Information
Chapter 7 MXT Information Chapter 7 MXT Information Video A Video cassette detailing the proper use of the MXT is available. This video explains how to use the MXT in the field, as well as explaining the many varied options. Intended for English speaking persons, it is recorded on VHS format.