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TERMINOLOGY 

The  following  terms  are  used  throughout  the  manual,  and  are  standard  terminology 

among detectorists.   

 

ELIMINATION -

 Reference to a metal being "eliminated" means that the detector 

will not emit a tone, nor light up an indicator, when a specified object passes through the 
coil’s detection field.   

 

DISCRIMINATION -

 When the detector emits different tones for different types of 

metals,  and  when  the  detector  "eliminates"  certain  metals,  we  refer  to  this  as  the 

detector "discriminating" among different types of metals. Discrimination is an important 

feature  of  professional  metal  detectors.  Discrimination  allows  the  user  to  ignore  trash 

and otherwise undesirable objects.   

 

NOTCH  -

  Notching  is  the  elimination  of  an  item,  or  range  of  items,  within  the 

metallic spectrum. We “notch-out” an object, or objects, selectively.   

 

AUTO NOTCH -

 It eliminates trash metals automatically and keep the detection for 

most coins. AUTO NOTCH range is preset in the factory and not adjustable.. 

 

RELIC -

 A relic is an object of interest by reason of its age or its association with 

the  past.  Many  relics  are  made  of  iron,  but  can  also  be  made  of  bronze  or  precious 

metals.   

 

IRON -

 Iron is a common, low-grade metal that is an undesirable target in certain 

metal detecting applications. Examples of undesirable iron objects are old cans, pipes, 

bolts,  and  nails.  Sometimes,  the  desired  target  is  made  of  iron.  Property  markers,  for 

instance, contain iron. Valuable relics can also be composed of iron; cannon balls, old 

armaments, and parts of old structures and vehicles can also be composed of iron.   

 

FERROUS -

 Metals which are made of, or contain, iron.   

 

GND TRAC - 

Ground Track is the process of finding the exact location of a buried 

object.  Long-buried  metals  can  appear  exactly  like  the  surrounding  soil,  and  can 

therefore be very hard to isolate from the soil

 

 

PULL-TABS  -

  Discarded  pull-tabs  from  beverage  containers  are  the  most 

bothersome trash items for treasure hunters. They come in many different shapes and 

sizes. Pull-tabs can be eliminated from detection, but some other valuable objects can 

have  a  magnetic  signature  similar  to  pull-tabs,  and  will  also  be  eliminated  when 

discriminating out pull-tabs.   

 

GND  BAL  -

  Ground  Balancing  is  the  ability  of  the  detector  to  ignore,  or  "see 

through," the earth’s naturally occurring minerals, eliminates false signals from severe 

ground conditions, and only sound a tone when a metal object is detected.   

 

SURF ELIM -

 Surface Elimination can improve the accuracy of detection result in 

soil with mass trash metal. It restrains the signal from trash metal  in soil surface layer, 

and balance the signal from large target.   

Summary of Contents for GC1035

Page 1: ...1 METAL DETECTOR MODEL NO GC1035 ...

Page 2: ...g After you have become familiar with the detector you may try it at full sensitivity 2 This detector is for outdoor use only Do not use indoors Many home appliances can emit electromagnetic wave and will interfere with the detector For indoor testing turn the sensitivity down and keep the search coil away from facilities such as microwave ovens computers and TVs If your detector beeps erratically...

Page 3: ... target in certain metal detecting applications Examples of undesirable iron objects are old cans pipes bolts and nails Sometimes the desired target is made of iron Property markers for instance contain iron Valuable relics can also be composed of iron cannon balls old armaments and parts of old structures and vehicles can also be composed of iron FERROUS Metals which are made of or contain iron G...

Page 4: ...coil is level with the ground with your arm relaxed at your side Then counter clockwise rotate to tighten the lock cam 4 Wind the search coil cable around the stem Insert the search coil s plug into the search coil jack on the detector s control housing Caution Do not over tighten the search coil or use tools such as pliers to tighten it The search coil s plug fits into the connector only in one w...

Page 5: ... out two battery connectors from the compartment 4 Join the battery polarities with the connectors 5 Re install the battery cover Warning Dispose of old batteries promptly and properly do not bury or burn the batteries Note If you don t plan to use the unit for a week or more time remove the batteries Batteries can leak chemicals that can destroy electronic parts To extend the battery lift exchang...

Page 6: ...us SENS adjustment DISC range adjustment or NOTCH range adjustment SURF ELIM selected or not and low battery or not Sensitivity Indicator SENS indicates current sensitivity degree of the machine Depth Indicator shows target depth DISC NOTCH Range Indicator indicates current DISC NOTCH range settings Target Indicator shows the target category 3 2 Controls Quick Introductions Details see BASIC OPERA...

Page 7: ...TCH Modes are motion modes There re 3 tones to identify different metals in these modes Detector can work in auto ground balance Sensitivity is adjustable while GND BAL is not available in these modes To reject the trash metal you may adjust DISC or NOTCH range Motion mode means the coil must be in continuous motion otherwise target cannot be detected 4 2 Power On Clockwise rotate the VOL knob fro...

Page 8: ...de Target identification is useless in ALL METAL mode To see target identification and depth please change the detector into relative motion mode 3 NOTCH Mode To selectively eliminate one or several metals from the categories you can use NOTCH mode DISC NOTCH indicator shows current target discrimination range and the probable target identification is indicated by the arrows at the top of the disp...

Page 9: ...ith a friend keep two metal detectors at least 6 meters apart SEVERE GROUND CONDITIONS Another use for the Sensitivity Control is to reduce false detection signals caused by severe ground conditions Although this metal detector has specially designed circuit to reduce the ground mineralization the ground conditions in field cannot be anticipated Highly magnetic soils found in mountainous area can ...

Page 10: ...s keep the display screen in his vision Therefore we have incorporated an audio feedback to alert the user the nature of buried objects This audio feedback system first alerts the user the presence and classification of objects whose nature and location can be confirmed by the LCD display The 3 tone audio target identification system functions only in the motion modes of DISC NOTCH or AUTO NOTCH I...

Page 11: ...ickel and new pull tabs will register here Pull Tabs Pull tabs of older beverage cans will register here Few new pull tabs will also register here Many gold rings will also register here S CAPS Bottle caps with whorl and some small gold will register here 1 1 post 1982 or copper coin registers here SILVER 10 1 1 pre 1982 10 or aluminum coin will register here 25 indicates the target may be 25 some...

Page 12: ...or sounds medium tone this time and target indicator arrow points to 1 While In the test of 25 detector emits high tone and arrow points to 25 NOTE When the sample is a coin better let the flat side of the coin parallel with the flat face of the search coil and sweep it evenly so that the detector can find the target more easily Sweeping with the side of the coin parallel with the search coil will...

Page 13: ...l try moving the coil in short rapid sweeps over the target zone Such a short rapid sweep may provide a more consistent target identification Most valuable objects will respond with a repeatable tone If the signal does not repeat after sweeping the coil directly over the suspected target a few times it is more than likely trash metal Crossing the target zone with multiple intersecting sweeps at mu...

Page 14: ...ll interfere with this procedure 2 Lift the search coil waist high in the air 3 Begin with the ground balance GND BAL KNOB in the P position Rotate slightly the GND BAL knob from P counter clockwise 4 Press GND TRAC 5 Lower the search coil to the ground maintaining it elevated about 1 1 5cm above the surface be sure that this ground does not contain metal If the detector emits sound with the searc...

Page 15: ... the size of the target Large Objects After a target is detected LCD displays sensitivity level and a medium tone beeps If you lift the coil to a distance around 2cm above the ground the signal displayed on the LCD is almost same and the tone does not fade you may have detected a large or irregularly shaped object Further lift the coil off increments on LCD decreases obviously and the tone level r...

Page 16: ...ght be another metal detector working or electric line nearby Handle the detector gently and carefully Dropping it can damage circuit boards and cases and can cause the detector to work improperly Use the detector only in normal temperature environments Temperature extremes can shorten the life of electronic devices damage the cases of the detector Keep the detector away from dust and dirt which c...

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