CS-990 GB
10
USE IN THE FIELD
Detection Area
These detectors employ a Total Response
search
head which means that the object can be
detected across the full width of the search
head.
Diagram 3
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" (20 cm) of the surface. Adverse soil conditions can reduce
the depth of detection by more than half.
Determining the Target Size and Depth
An operator who is familiar with his instrument will be able to do an excellent job of determining
object size, shape and depth before he digs. The technique is learned from careful analysis of the
audio signals coming from the detector. Each time a signal is heard, listen for any peculiar
characteristics it may have; determine over how large an area you get a detector signal, and try to
’outline’ the object before you dig. Listen for the sharpness or dullness of the signals and determine
the magnitude of strength of the signal. A coin will have a sharp signal, a nail a fuzzy signal.
CARE AND MAINTENANCE
Care of Your Detector
The working life of your detector will be shortened by careless use or neglect of the unit. Think of
your detector as a scientific instrument, NOT A TOY. Your detector is designed to withstand
rugged handling on any terrain, but mis-use or lack of due attention will tell in the end.
After using your detector in a hostile environment (salt water, sand etc.) the exterior parts of the
casing should be wiped with a damp cloth, paying particular attention to the head, and carefully
wiped dry. Foreign particles in the control box can be removed by brushing carefully (or with
compressed air or a vacuum cleaner).
Search Are
To Next Page
Loading...
Need help?
General
