C-SCOPE CS4ZX, Руководство по эксплуатации

Страница: 18 / 25

18
area of response, deep targets give a broad response whilst shallow targets tend to be narrower. The
ability to distinguish between good targets and deep iron comes with practice.
Searching On A Beach
The range of soil types is greater on the beach ranging from dry sand which shows very little ground
effect to salty water which exhibits severe mineralisation. To accommodate this range the GROUND
switch must be put into BEACH. The GROUND control is then adjusted as described above for the
INLAND site.
Note: At high levels of the GROUND control (BEACH setting) ferrous targets produce negative
response and are not detected.
Anti-drift
Note: The non motion circuitry has built in automatic anti-drift. This is apparent when the
SENSITIVITY is set to give an audio tone (threshold) and the head is held still over a deep target.
The detector treats the signal as it would drift. The audio signal will gradually decay to the threshold
level (set on the SENSITIVITY control). As the head is moved away from the target the audio will
also drop away, followed by a slow recovery to threshold.
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 well
compacted soils and coins can be found at the greatest depth if the object has 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
artefacts are found within 6" of the surface.
N.B. Your CS4ZX is a top performance deep seeker but adverse soil conditions can significantly
reduce the depth of detection.
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. This technique is learned from careful analysis of the
audio signal 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. After digging up the object, compare the object size, shape, depth
and position in the ground with signal information you received before digging. After careful analysis
of many signals you will learn to 'read' the hidden target before digging.