EVO6000 User Manual

How a Metal Detector Works

Metal detectors work by creating a magnetic field which stimulates electric currents in metal objects. The metal detector measures the changes in the magnetic field caused by the currents. By analysing the strength and timing of the currents the metal detector can estimate the depth and the type of metal in a target.

The EVO6000 shows the depth on the right side of the display and the type of metal as a target id on the large digits in the centre of the screen. The sensitivity level setting (SENSITIVITY) is used to filter out weak signals which might be noise.
The volume of the low pitch tone the EVO6000 makes when it detects iron targets is controlled by the iron volume setting (IRON VOL). If you are not interested in digging iron targets, set the iron volume setting (IRON VOL) low. Using an iron volume setting (IRON VOL) of zero will mute iron targets entirely.

The EVO6000 lets you assign different tones to different target IDs using the discrimination level setting (DISCRIM). The volume of the medium pitch tone that the EVO6000 makes when it detects targets with target IDs above iron, but below the discrimination level (DISCRIM) is controlled by the discriminate volume (DISC VOL). If you want to focus on targets with higher target IDs, set the discriminate volume (DISC VOL) low.

Ground Signals

The ground can also cause changes to the magnetic field. The effect of the ground on the magnetic field changes with the level of mineralisation of the soil and on how close the ground is to the metal detector search head. Metal detectors use timing information and the rate of change of the magnetic field to eliminate the ground signal.

The EVO6000 can automatically track and eliminate the ground signal (TRACKING). You can also set the ground level yourself (GROUND) or have the EVO6000 calculate a ground setting for you to use (AUTOSET). To help you spot when ground conditions have changed, the EVO6000 will tell you if the tracking value it would have used is different from the ground level you have set.

Detection Modes

Metal detectors working in motion mode monitor the instantaneous changes in the magnetic field as they pass over a target. Motion mode is easier to use and set up because it is less sensitive to changes in ground conditions. In motion mode a detector will detect a target only when the search head is moving. Even small movements of the search head are enough to make motion mode work.

Non-motion modes measure the level of the magnetic field relative to a baseline level. The baseline level has to be reset when ground conditions change or in the presence of multiple targets. Non-motion modes can find deep targets and do not require you to move the search head. Non-motion modes are great for pinpointing targets and on sites where it is difficult to swing the search head.

The default detection mode on the EVO6000 is motion mode with a pinpoint mode to help precisely identify the position of a target. A short press on the pinpoint button  puts you into pinpoint mode. The EVO6000 pinpoint mode uses the volume and pitch of the tone to help you locate a target. A long press on the pinpoint button  puts you in the non-motion modes. The EVO6000 has two non-motion modes. Non-motion audio discrimination mode gives you all the benefits of non-motion and a target id as well as audio tones to help you identify your target. Non-motion single tone mode uses just one tone for a clear, simple location of any target.

Head Selection

The EVO6000 comes with a 28 cm (11 inch), 17.5 khz elliptical search head. this search head is great for finding coins in normal soil at depths of up to 35 cm (14 inches). Other search heads are available as accessories. Bigger search heads are better at finding larger, deeper targets. Smaller search heads are better at pinpointing smaller targets and in confined spaces. Lower frequencies work better on more mineralised soil and higher frequencies help find smaller targets with high target IDs.