Cleaning And Storage - Velleman CS250 Mode D'emploi

ferrous metals rather than a silver or copper object. If the tone
changes at different angles, you may have encountered multiple
objects. If you are new to treasure hunting, you may want to dig all
targets at first. With in-the-field practice, you will learn to better
discern the nature of buried objects by the nature of the detector's
response.
You may encounter some false signals as you proceed. False signals
occur when the detector beeps but no metal target is present. They
can be induced by EMI, oxidation or highly mineralized ground soils.
If the detector beeps once but does not repeat the signal with several additional sweeps over the same
spot, there is probably no target present.
When searching trashy soils, it is best to scan small areas with slow and short sweeps. You will be
surprised just how much trash and foil you will find in some areas. The trashiest areas have been
frequented by most people and frequently hold the promise for finding the most lost valuables.
10.5 Ground Balancing
This metal detector features a preset ground balance.
10.6 Factors Affecting the Detection
It is generally difficult to have accurate detecting results. Sometimes, the detecting may be restricted by
some factors, such as

the angle of the buried object;

the depth of the buried object;

the oxidation level of the buried object;

the size of the buried object;

the electro-magnetic and electrical interference surrounding the buried object.
In highly mineralized soils or wet sand, the detector will sound even if there is no metal object present. If
this is the case, lower the sensitivity level and increase the discrimination value. In the meantime,
increase the distance between the search coil and the surface.
In an area where you suspect much trash, set the discrimination level to around 50: most nails and
trashy metal will be eliminated.
In any case, remember to keep metal objects away from the search coil.
11.

Cleaning and Storage


The life of your detector is shortened by neglect or careless use. Wipe the housing with a damp cloth
and then wipe it dry carefully if you have used the detector in a hostile environment (salty water,
sand, etc.).

Do not clean the detector with solvents or detergents.

The search coil is waterproof and can be submerged in either fresh or salt water. However, do not let
water enter the control box. Rinse the search coil with fresh water after using in salt water.
Salt damage

Salty air can penetrate the control box in case of frequent use in a salty environment. Parts of the
electronic circuitry may corrode. You can protect your metal detector by covering the control box
with polythene. The warranty does not cover damage caused by salty environments.
Storage

Store the detector in a dry and warm environment under normal humidity conditions.

Remove the batteries to prevent them from leaking if the metal detector is to be stored for long
periods.
12. Troubleshooting

Before turning the device in for repair, read this section as it might contain the solution for your
problem.

When problems occur, first check the batteries. Replace the batteries when necessary and ensure the
connections are correct and secure.
V. 01 – 21/09/2015
CS250
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