CS-660 GB
3
Discrimination
The CS-660 has a variable discrimination control which allows the operator to choose from any
setting between all metal detection to iron and silver paper rejection.
To adjust the Discriminate Level Control depress the Retune Button turn Discriminate Level
Control to the desired level and release Retune Button.
Discrimination of a target object is indicated by a reduction in signal strength. For example, with the
reject setting at 5 an iron nail will give a negative reaction (reduction in sound or no sound) whereas
on a coin there will be a positive reaction (an increase in sound).
Please note a higher discriminate setting some desirable objects may be ignored by
the detector.
Ground effect
The signal of your detector will be affected by the type of terrain you are searching. Normally this
effect produces and increase or decrease in the audio signal when the search head is raised from the
ground. This effect can be controlled in two ways. If the search head is kept at a constant height the
effect of the ground will be constant. The second method, only to be used when the effect is severe,
is to de-tune the machine so that it is less sensitive to the ground. However, this will have the effect
of making the machine less sensitive to coins as well.
USE OF YOUR DETECTOR IN THE FIELD
Detecting
To test for the type of signal you will get, take a coin or metal object and with the detector set up on
a table tuned as previously described, move the metal object towards and across the search head.
You will note that the volume will increase quickly as the metal object passes across the search
head, with the loudest sound occurring when the search head is immediately centred over the metal
object. As the object passes beyond the search head the sound will quickly fade.
Detection Range
Detection ranges will vary depending on the size of the object, the length of time an object has been
buried, and the type of ground the object is buried in. The best ground conditions are dry well
compacted soils then coins can be found at the greatest depths if they have been buried for some
time and the coin has interacted with the salts in the ground, thereby appearing larger to the
detector. The worst conditions for detecting are on loosely compacted or freshly dug ground or
when the object has only recently been buried. In these conditions detection range will be reduced.
90% of all objects are found within 6" (20cm) of the surface. Adverse soil conditions can reduce the
depth of detection by more than half.
To Next Page
Loading...
Need help?
General
