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MANUAL  MODE OF OPERATION

adjust

 control the threshold tone won’t change  while lowering the coil to the 

ground. At this point the detector is balanced for the area and ready to hunt. If 
you rotate the 

GND adjust

 control further clockwise, you’ll pass this point of 

balance. Then the detector will get quiet while lowering the coil to the grounds 
surface, and it will increase the threshold tone when raising the coil. This 
means  that  you  should  return  the 

GND  adjust

  control  slightly 

counterclockwise until you get a constant threshold hum while pumping the 
coil. Lets note, that from the sinking into the panel the clockwise rotating of the 

GND adjust

 control in continuation of 11 turns there will be a change in the 

ground balance. If you continue to rotate the knob after these 11 turns you 
won’t  get  any  more  change  in  the  balance.  If  you  are  confused  for  some 
reason, press again the 

GND adjust

 control, this will return you to the initial 

point, and you could start the procedure again.
 

When you ground balance on very heavy grounds it is possible to have 

cases when you hear increasing tone while lowering, and while raising your 
coil. If this increased tone is with one and the same volume you have a correct 
ground  balance  adjustment.  This  is  a  normal  affect  for  the  very  heavy 
grounds.  To  decrease  this  unpleasant  affect  you  could  decrease  the 
sensitivity level of the detector.

 

Remember that the coil must be lifted straight off the ground. Swinging 

the coil in an arc will cause false readings and will result in not proper ground 
balance. 

 

If the 

all metal/disc

. control is in 

all metal

, and the switch 

A ground/M

 

ground

 to 

A ground

 position the detector won’t operate correctly and while 

nearing the coil to the ground surface you’ll hear increasing threshold tone.

 

The affect of the hole

 

When  you  operate  the  detector  on  heavy  and  wet  soils  conditions, 

especially when you use the bigger sized coil while passing over an open hole 
you’ll hear audio signal from the detector, even if in the hole there is no any 
metal object. To avoid this unpleasant effect while sweeping the coil over the 
hole  rotate  the  sens.  control  counterclockwise.  If  even  with  minimum 
sensitivity level the affect of the coil does not disappear you should turn the 
detector in Auto mode of operation (page  4). 

 

If you have made a good adjustment of the ground balance for certain 

ground, and it is rich of hot rocks, these hot rocks will give a quite specific 
negative  response.  The  sound  they  give  is  quite  special,  but  with  some 
practice you’ll be able to recognize exactly the signals coming from such hot 
rocks.
 

While operating on normal grounds some very experienced professional 

TH-ers, in order to increase the sensitivity and depth of penetration,

6

Summary of Contents for EDS plus II

Page 1: ...II ...

Page 2: ...cking ring should be done after you have assembled the whole handling and when you have adjusted the working length of the handling 6 Press the snap button of the upper rod assemble S rod and slide the upper rod into the other locking ring of the middle rod assembly until the snap button clicks into the hole locking the two assemblies into place Tighten the rod lock to secure the two assemblies to...

Page 3: ...t touch the ground during your sweep The angle of the search coil should allow its bottom to be parallel to the ground as shown on Figure 1 Swing the detector from side to side in about three foot arc overlapping succeeding strokes well The detector is designed to get maximum depth without the requirement for speed of sweeps so go at a pace that is comfortable for you In fact trying to hunt too fa...

Page 4: ...he most counterclockwise red zone In this zone you won t have audio discrimination For coin shooting use the coins zone If you want to dig the bigger sized ferrous targets like knives arrows and spears rifles guns turn back this control to the relic position In this position the detector will reject only the tiny pieces of wire Do not increase the discrimination beyond the foil mark the detector w...

Page 5: ... signal as if in the hole there was a metal target In such case switch the M A ground to the M ground position and press the GND adjust control to sink into the panel the led indicator will light in green In most cases this will eliminate this negative affect and will result in more stable operation of the detector of course slightly decreasing its depth parameters If the affect of the hole does n...

Page 6: ... tone all the metal targets no matter the rotation of the control in one or other direction Now turn on the detector rotating the sens control to the red marked position Then rotate the threshold control until you start hearing a very weak faint hum Now slightly press the GND adjust control until it sinks into the panel At the moment of pressing the control you ll here a slight click and the indic...

Page 7: ...for the very heavy grounds To decrease this unpleasant affect you could decrease the sensitivity level of the detector Remember that the coil must be lifted straight off the ground Swinging the coil in an arc will cause false readings and will result in not proper ground balance If the all metal disc control is in all metal and the switch A ground M ground to A ground position the detector won t o...

Page 8: ...e changed significantly You should ground balance the detector again for these changed ground conditions In some specific ground conditions the ground balance point would not be found When this happens it is best to switch to the AUTO mode of operation The same you could do in any case when you meet difficulty with the ground balance adjustment on some grounds You should know that the processor of...

Page 9: ...ctor is really deep with such a low discrimination level The next zone is coins Here you ll have good rejection of the ferrous targets and you ll accept all the non ferrous targets We recommend this position of the disc control for searching areas littered with iron trash If you have too many pieces of foils rotate the disc control after the foil zone Have in mind that the categorical foil rejecti...

Page 10: ...The advantage is that you won t miss any metal target in the ground Move the coil just over the grounds surface and with a mean speed of movement Probably you ll need time 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 deeper metal targets For maximum sensitivity and deeper searching with the detector we wou...

Page 11: ...tions to have a smooth operation of the detector with no false signals first turn the high low switch to low Then do not choose too high levels of the sens control And the most important while sweeping over the wet sand rotate the disc control clockwise until the parasitic signals caused by the conductivity of the wet sand disappear This rejection of the parasitic signals will be active after the ...

Page 12: ...Discrimination Mode The switching to high should be made if the ground and atmosphere interferences are normal If the grounds are heavily mineralized or if there are too many electromagnetic disturbances the low position of the same switch should be used When testing the detector in built up places where there are many electromagnetic interferences you won t be able to increase too much the sensit...

Page 13: ...towers electricity transformers cells of mobile phone operators or other detectors Move farther away from the source lower the sensitivity level Switch the high low switch to the low position The use of a smaller sized coil is also a good solution Highly mineralized soils with high iron or salt content In such conditions reduce the sensitivity increase the level of discrimination If searching in t...

Page 14: ...d closely together which is very useful when hunting trashy areas At the moment as accessory coils are offered the 6 DD closed solid design coil and the 8 x6 SEF coil The 12 x12 coil is recommended for TH ers who has already accumulated experience in operating the detector Its advantages towards the 9x9 coil are that it has a better sensitivity and depth especially for the bigger sized targets thi...

Page 15: ...you ll hear warning audio signal If you do not turn off the detector this will continue until the batteries are fully discharged not too long time which is not desirable because is extremely harmful for the batteries themselves To remove the batteries make the following Remove the lid of the battery compartment on the backside of the control box You ll see the batteries In the bottom of the compar...

Page 16: ...8 X 6 203mm X 152mm Headphones Impedance 8 32 Ohms Mono Stereo Jack 1 4 6 3mm Batteries Standard Four Ni MH 1800 mAh Optional Four 1 5V size AA Alkaline Ni MH battery Life 20 30 hours Low Battery Alert Automatic LED and Audio Ground Rejection AUTO Manual Ground Adjust Search Modes Discrimination All Metals Ground Adjust Enable Controls ON OFF sens disc GND adjust threshold Switches high low freq 1...

Page 17: ...aces The use of coil cover is highly recommended to protect the searchcoil from abrasion The searchcoil is waterproof but the electronics are not Always prevent any moisture or water from entering the control box of the detector Protect your detector from dust moisture and extreme temperatures Keep it clean and dry and avoid getting sand and grit into the shafts or the tightening nuts Do not use s...

Page 18: ...onal 6 coil your detector exceeds the remaining detectors The tests are made at one and the same time in one and the same meteorological conditions on the field away from the electromagnetic disturbances of the built up area The speed of passing the targets in front of the coil of each detector is a normal mean speed The same speed is the most appropriate one for treasure hunting With increase of ...

Page 19: ...Note Each of the test targets could be seen on Picture 1 18 EDS PLUS ...

Page 20: ...19 ...

Page 21: ...1 2 3 4 5 6 7 8 9 10 17 19 13 16 18 15 11 14 picture 1 20 ...

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