For Indoor Test (continued)
5.If the detector detects the material, it sounds a tone and the pointer moves to the left (ferrous) or to the right
6.If the detector does not detect the material, the battery power
may be low. Also verify that the search coil is properly connected. The detector may also need to be fine tuned (see directions below and on the next page.
Figure 13
Outdoor Testing and Use:
1.Locate an area outdoors where there is no metal present. Place a sample of the material to be tested (coin or gold ring) on the ground.
2.Rotate VOLUME about
3.Press and release the red button on the handle. Slowly rotate TUNE until the pointer is at or near 0. A tone should be barely heard.
4.With the search coil being held approximately 1 to 2
inches above the ground, slowly move the search coil over |
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the area where you placed the sample. Sweep in a side to |
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side motion as follows: |
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Sweep slowly to avoid missing targets. Never raise the sweep |
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coil while sweeping; sweep back and forth as if it was a | Figure 14 | |
pendulum (see Figure 14). | ||
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If the detector successfully detects the material, it will sound a tone and the pointer will move to the type of metal it found. If nothing was detected, try again (make sure the search coil is being moved properly).
The detector will respond strongly when it detects most valuable metal oljects. If the signal does not repeat after being swept over the target a few times, the target is probably junk metal.
False signals can occur from electrical interference, large, irregular pieces of junk metal, or finding trash on the ground. False signals usually occur broken or are
After finding a metal item, wait a few seconds after the tone stops before continuing; this allows the detector time to reset. You can also press the red button on the handle to return the pointer to the center of the viewmeter.
Fine Tuning the Metal Detector:
Once you practice with the unit, you can fine tune it to make it more selective in what is
found. The ability to distinguish between different types of metal is termed discrimination.
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