Field Operation - Pyle PHMD1 Instruction Manual

Field Operation

Metal detector is used outdoors. There are too many metals indoors, and also all
kinds of electrical equipments that will cause interference signals, so it's not fit for
using the metal detector.
Field detection is more complicated, the composition of the detected regional soil,
the component, size, shape and the oxidation degree of the underground metals will
all affect the detection results. This chapter is only the general steps of the field
detection. The operator should practice time after time and accumulate experience to
achieve good results.
1. Turn on
Rotate the DISC knob to the right side, switch on the power supply. Set the
VOLUME to the mid, the detector may sound a tone or may be silent.
2. Adjust balance
Press and hold the "Red Button", and adjust the "TUNE" knob, let the meter
pointer points to "0" position. Release the Red Button, the meter pointer should
maintain points to "0" position or near the "0" position. Adjust the "VOLUME", the
detector will sound a light hum tone, now the balance has been adjusted.
We remind the operator specially, once you adjust the "DISC" button, you should
adjust the balance over again. When the detection environment has a change, you
should also adjust the balance over again.
In general, after the balance being adjusted, and some balance deviation having
occurred, you should only press the Red Button to let the detector return to the
balance state.
3. Adjust volume
The detector is based on the direction of meter pointer deflection and change of
sound to detect metals, and it's more sensitive to judge by the sound. After the balance
has been adjusted , adjusting the volume will get a light hum tone, don't adjust it too
loud.
4. Adjust DISC
In general, set the "DISC" to "MIN", the sensitivity is set to it's highest level at this
time. If you find a ferrous metal, the detector tone will turn light, and the meter
pointer swing to the left. If you find a nonferrous metal, the detector tone will turn
louder, and the meter pointer swing to the right. You should further determine the
general type of nonferrous metals by DISC.
Since the soil will deviate the discrimination position, we suggest you take some
samples with you, such as iron nail, pull tab, 5￠ nickel coin, 25￠ silver coins. Bury
these samples in the detection soil respectively, try detecting and observe the different
metals discrimination position. It will help you judge the type of the target, in case
you accidently omit the treasures that you want to find.
5. Move the search coil
When moving the search coil, you should move it at a constant speed, not
unsteadily. Let the search coil be parallel with and about 1/2 inch from the surface. Do
not to swing it like a pendulum high and low above the ground.( Figure.16,17)
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