Using Headphones - Velleman CS300 Mode D'emploi

It's better you sweep the search coil from side to side in a straight line and keep the search coil parallel

with the ground.
The detector responds with a signal when it detects most valuable metal objects. If a signal does not repeat

after you've swept the search coil over the target a few times, the target is probably junk metal.
False signals can be caused by trashy ground, electrical interference, or large irregular pieces of junk metal.

False signals are usually broken or non-repeatable.

8.6 The Ground Balance
Ground balancing the detector is simply, the term used to describe the function of adjusting the metal detector
to ignore the minerals in the soil so that they are not detected by the metal detector.
Begin with setting the GND BAL knob to PRESET. Lift the search coil waist high. Press GND TRAC several

times to stabilize the detector.
Lower the search coil to about one inch above the ground. The detector is properly balanced when it does

not emit any tones. Readjust the ground balance if necessary. To do so, lift the search coil and turn the
GND BAL knob slightly to the left. Push GND TRAC several times and repeat the step above.
REMARKS:
Ground balance the detector in an area exempt of any metal objects.

Turn the GND BAL knob with small increments in order to achieve an optimum balance.

Press GND TRAC after each ground balance adjustment.

8.7 Pinpointing a Target
Accurately pinpointing a target makes digging it up easier, but it takes practice. We suggest you practise
finding sample on your own property before you start searching other locations.
Follow these steps to pinpoint a target:
1. When the detector detects a buried target, continue sweeping the search coil over the target in a narrowing
side-to-side motion.
2. Make a visual note of the exact spot on the ground where the detector beeps.
3. Stop the search coil directly over this point on the ground. Then move the search coil straight forward away
from you and straight back towards you a couple of times and make another visual note.
4. Repeat steps 1 to 3 at a right angle to the previous search line. Make an "X" mark on the ground. The
target will be directly below the "X" at the point of the beep response.
8.8 Factors that Affect the Detecting
It is difficult to have an accurate detecting result. Sometimes the detecting may be restricted by some factors:
the angle of the object buried in the soil;

the depth of the target;

the level of oxidization of the target;

the size of the target;

electro-magnetic and electrical interference surrounding the object.

Hunting patiently and correctly, and practising several times will get you satisfactory results.
8.9

Using Headphones

1. Make sure your headphones have a 3.5mm plug.
2. Set the VOL knob to zero.
3. Insert the headphones' plug into the PHONE jack. The internal speaker will automatically disconnect.
4. Set the VOL knob to the desired setting. Do not listen at extremely high volume levels, as it may lead to
partial or permanent hearing loss.
V. 05 – 07/07/2017
CS300
8 ©Velleman nv