SMD-300 Selective Pulse Metal-Detector User Manual
STT Group - Special Technique & Equipment
Moscow
Russia
26
Fig. 23
Blinking
concentric
circles
Close but
small item
Deep item’s
occurrence depth
Fig.24
…or…
# I. BLINKING CONCENTRIC CIRCLES
Blinking concentric
circles in a geometric
centre of display
window confirm the
detection of metallic
item (fig. 23).
While its parameters are uncertain over the weak level of the
signal received: small size of detected item or its great
occurrence depth (fig. 24).
