Knob - Pyle PHMD1 Instruction Manual

7. Discriminate different metals approximately
We take 5￠nickel coin and pull tab as an example to explain the approximate
discrimination method.
 Set the DISCRIMINATION to about "12:00" position (Figure.15). Adjust the
balance to let the detector sound a hum tone, and the show is "0"
 Let the iron nail, 5￠nickel coin and pull tab approach the search coil
slowly ,the sound tones light ,and the meter pointer deflects to the left.
 Let the higher conductivity objects, such as1￠zinc coin and 25￠silver coin
approach the search coil slowly, the sound tones louder,a nd the meter pointer
deflect to the right.
 The "12:00"position is the 5￠nickel coin and pull tab discrimination position.
 Rotate the "DISC" knob from "MIN" to "MAX", you can find the different
metals discrimination position. The metals
discrimination position is near the left side, and the iron discrimination position
is in the most left (MIN). The metals with high conductivity, discrimination
position is near the right side, and the silver discrimination position is in the
most right (MAX).
8. Explanation
 Discriminating metals is based on the change of sound and meter pointer
direction. The discrimination is preliminary, and it's only a reference for
treasure hunters.
 When the DISC is in the "MIN" position, the detector sensitivity is the most.
9. Operation outdoors
By learning, you have learned how to operate the detector. In the wild, as the soil,
sea sand, ores and other environmental impacts and the interference of
electromagnetic fields, the detector sensitivity and discrimination location will be
changed. You should practice time after time and accumulate the experience to master
the skill of detecting gradually, and you will taste the joy of treasure-hunting.
Figure.14
Figure.15
9
with low conductivity,