User's Manual

Some smaller pieces of bronze may be indicated

with a time delay reading between 50 and 60 na-

mely the same as some ferrous metal objects. At the

same time the LORENZ DEEPMAX Z2 does not suer

from anomalous eects like VLF-TR sine wave detec-

tors do. Therefore very big ferrous metal objects will

not cause a higher reading than 60 in most cases. If

ferrous and non-ferrous metal objects are simulta-

neously located by the search coil the metal classi-

cation circuitry will display the conductivity of the

bigger metal object on the screen. The reading may

also lie between the two dierent kinds of metals.

The time delay/ conductivity metal classication of

the LORENZ DEEPMAX Z2 will work with all availa-

ble coils. It is often helpful to start with “in- air” tests

in order to see how the detector responds to die-

rent metals. Highly mineralized soils, electromagne-

tic interference from power lines or transmitters can

cause inaccurate conductivity meter readings.

Some nails or longer ferrous objects produce die-

rent signals like for example 50-60 at the edges and

35 in the middle, when passing them with the coil.

Note: When expecting mineralized soils it is neces-

sary to tune the detector to the ground rst with the

two step ground balancing procedure. The FE/ NON

FE, Ferrous / Non- ferrous metal identication is of

great help when classifying smaller objects in weakly

or medium mineralized soils with DD- coils. With ma-

gnetic ground however this indication is less accura-

te. The coil has to be hold at a constant height a few

centimetres over the ground while moving slowly in

order to make an indication possible (Motion prin-

ciple). Very big Ferrous metal object like horseshoes

ore bigger will cause a NON FE indication.