Ok device is not cheap but very, very well made. Coil is carbon fiber and is very light - we talking about double 10" butterfly style coil. Overall weight is about 1.9 kg = 4.1 lbs. Is not light but very well balanced. What about adjustments. Ok is not easy and it could be the bad idea buy it without experience or like rookie in metal detecting world.
What we have here?!
1. We have two ground balance adjustments. Coarse and Fine GB knobs. The Fine control is a 10 turn for fine tuning, the Coarse control is one turn for coarse tuning.
2. The Discrimination control of the MP V3 needs to be set somewhere around 3-4 on the scale (similar to MkII) to avoid digging iron as non-ferrous. It's best to choose your setting on the field after digging some signals.
Unlike MkII the Discrimination of MP V3 is very soft in adjustment values. This means there is no danger of turning it too much at very small increments.
3. The LC-MC SET control is used to turn on/off the RGB LED meter and to adjust the cut off point between low conductors (LC) and medium conductors (MC). If this control is set to the left (0), only the lowest conductors will be indicated with green color - hammered gold coins, Roman gold coins, any small gold coin or artifact as well as very small bits of foil.
All other non-ferrous targets will be indicated either with added Orange (Medium conductors MC) or White/Blue (high conductors)
If you turn the LC-MC SET to the right some hammered silver coins will be indicated as low conductors as well as most pull tabs.
4. The Mineral Control is to be used only on highly mineralized ground containing magnetite. MC Fine stands for mineral control fine adjustment.
If you turn on the mineral control the detector's sensitivity will be marginally reduced, but this will enable you to your audible Threshold close to powerful interference sources.
5. The Threshold of MP V3 should be used with some audible level at all times - constant hum. This is so that the very deepest small targets can be detected and all other targets to give really good broad response.
Audible Threshold will make sure the V3 gets everything way better than any other detector in existence, even the MP V2 (which is a beast in it's own right).
The general advice is swing the coil about 10 cm above ground on all sites and listen to the audible Threshold. When target is located if iffy lower the coil closer to ground. If the LED meter is uncertain use the VCO to give you final word.
6. The VCO control is to be used only to identify iffy targets or on contaminated ground.
The VCO control needs to be set so that the first green light just comes up. This will set the VCO tones to the audible middle between low tones and high tones.
The VCO is the ultimate way to identify very iffy (weak signals) targets at maximum depth.
When used on contaminated ground the Threshold of V3 has to be quiet so that the constant use of VCO tones there will not be disruptive.
Iron will not be indicated on the RGB LED meter unless the Disc control is set close to 0. In this case Iron will be indicated with green color like all low conductors.
7. The battery test will show you levels between 10.5V and 11.5V. So when the battery test is showing less than full led green bar then batteries are getting close to a new charge.