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12 

 

the difference between accurate readings, multiple targets, and highly erratic readings 

which evidence trash or irregularly shaped objects.

 

NOTE

Depth value indication of same target in air is different from that of under the 

ground. 

 

 

5

INDOOR TEST     

Supplies Needed

   

• A Nail   
• A Quarter 

• 

(post-1982) 

 

1.

 Turn on the detector. 

2. 

Place the detector on a wooden or plastic table, take off the watch, ring or other metal 

objects on your hand or arm. 

3.

 Adjust the search coil so the flat part points upwards.   

4.

  When  in  DISC,  NOTCH  or  AUTO-NOTCH

 

mode,  evenly  sweep  the  nail  10-12cm 

above the flat face of the search coil. The detector will emit a low tone when detects the 

sample,  and  the  arrow  pointing  to  nail  in  target  indicator  illuminates.  The  DEPTH 

indicator also displays corresponding value. Repeat the above test with a1¢ 

(post-1982). 

Detector 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 cause test error, 

and target arrow might be flash and jump.   

5.

 In ALL METAL Mode, move a test sample over the flat side of search coil at a higher 

location  (above  than  1  foot)  slowly  close  to  the  search  coil.  The  detector  emits  a  tone 

when detects the target, and DEPTH indicator shows relative value. All samples sound 

one tone in this mode. 

 

5

OUTDOOR TEST AND PRACTICE 

PINPOINTING

non-motion mode

 

Accurate  pinpointing  takes  practice  and  is  best 

accomplished by crossing sweep the target area.   

1.  Once  a  buried  target  is  indicated  by  a  clear  tone 

response, continue sweeping the coil over the target in 

a narrowing side-to-side motion. 

 

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...

Page 17: ...17 ...

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