SSE Boao
Set the controls as follows:
DMODE 655 s8tso
3. GROUND BALANCE .
*, **** ****** : : : :
5. VOLUME 3 UMAX
6. TUNE for threshold - press and hoid in the push-button, then turn the Tuner clockwise until a slight tone is heard - release the
button,
7. USING the mineral sample, move it directly towards the center of the loop, coming no closer than one inch from the bottom. (The
tone should increase.) Then, move the sample away from the loop. e@
8. INCREASE the DISC ADJUST, in the area marked "GND REJ”, until there is only a slight decrease in the threshold tone, as you
move the sample towards the loop.
9. RETUNE to threshold after you move the DISC ADJUST control each time, by pressing and releasing the push-button.
10. MARK this point on the DISC ADJUST dial once it has been determined. This will represent your detector's true null point
and should not change.
The null point relates to the DISC mode and will be used primarily for prospecting purposes. Setting this point permanently in no
way affects the other functions or mode of the detector. When you wish to rely on it, simply turn your DISC ADJUST to this point
which you have marked.
To test the DISC mode's response to good Items and junk items, repeat the procedures above through #9 with a variety of samples, <
such as those used to test the G.E.B. mode. As you increase the DISC ADJUST control, notice the way each item affects the tone
and note at which number on the DISC ADJUST each item is rejected. Your notes will help you during field use. Remember, the tone
will increase in response to good targets, and will go quiet in reponse to junk,
‘When using the discrimination mode, you should use no higher level of discrimination than is necessary for the type and amount of
trash that is in the area you are searching. Increasing the discrimination level will reject certain items of junk, but will also reject cer-
tain good items, such as the American nickel, and some small gold items. Therefore, you should note where certain items are re-
jected on the DISC ADJUST control. Also, some depth loss will result at the very high levels of discrimination.