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CONTROLS

11

Figure 8

The 

sens

 control is often thought of as a depth control and it is, but it can 

also  be  used  to  make  the  detector  more  stable  if  interference  caused  by 
ground mineralization or electrical fields are experienced. The 

sens

 control 

works in conjunction with the adjustments of the 

high/low

 switch. The 

low

 

position of that switch is for maximum stable operation, while the

 

high

 position 

is for maximum sensitivity and detection depth. 

For mass searching we recommend to use the

 

low

 

position of the switch. The beginners could use it and 
increase the sensitivity level to the boundary where the 
detector remains quiet and stable. For the very experienced 
TH-ers we would recommend the position

 high

 

of the switch. 

For maximum depth and sensitivity the professionals should
 then rotate 

sens

 control clockwise until  they hear rare,

 interrupted  tones from the speaker. When they  start sweeping
 the coil these tones will be oppressed by the ground, and the 
operator will hear only the useful responses from  targets in the ground.
Of course, all this is valid if the detector is operated in its 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 
sensitivity level. That is why for the tests of the real parameters and qualities of 
the detector we would recommend the field testing. If the detector is slightly 
noisy, before decreasing the 

sens.

 level try with a change of the operation 

frequency (from 

freq.1

 to 

freq.2

 or vice versa) and check whether the detector 

has  become less noisy.

The normal position of the 

freq.1/freq.2

 switch is the

 freq.1

and it is for 13.89 kHz operating frequency. If there are
interferences received you could choose the frequency, where
the detector is less noisy. The frequency switch positions are
designed to eliminate the radio-frequency interferences mainly
in competition hunting or when searching in close proximity to 
another detector with a similar operating frequency. If there is
an other detector with the same frequency, to operate both
detectors normally they should be operated on different frequencies.

Figure 9

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 ...

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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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