White's 1142650, Руководство пользователя

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GM24k Controls
Goldmaster 24k User Manual
9
7. The use of the VSAT (Variable Self-Adjusting
Threshold) control will also help to maintain a
smooth THRESHOLD “hum” and will be covered
in a later section.
8. While using a steady slow searchcoil sweep speed,
advance the control towards “10” while main-
taining a quiet smooth background THRESHOLD
“hum”. If ground noises are still a problem, reduce
SENSITIVITY.
9. The TARGET ID capability of the GM24k functions
more accurately when the SENSITIVITY is set at
a level which allows for smooth operation. Too
much gain can cause bad ground to distort the
proper identification of iron and non-iron targets.
10. Just as a slow, broad searchcoil speed will maintain
smooth threshold, it will also allow the searchcoil to
get clear off of the target with each pass, insuring
that the GM24k “sees” ground as well as target. This
is essential for the accurate operation of Target ID.
Sensitivity Adjustment (cont’d)
5. The object of increasing the SENSITIVITY is to get the maximum available depth from the detector
WITHOUT causing the overload message to appear, which indicates an overload of the circuit.
6. In addition, any increase in SENSITIVITY
adjustment
should NOT BE at the expense of maintaining
a smooth and constant THRESHOLD “hum”. False signals, beeps and bops from bits of mineralization,
erratic behavior, and lapses in THRESHOLD all can be results of running with too much SENSITIVITY.
With the right combination of sensitivity, SAT, and
patience, your GM24k can find gold down to the sub-
grain size .