Fisher M-96 manual Pinpointing

PINPOINTING

Accurate pinpointing with the M-96 takes some practice but not much. With a little experience, you should be able to pinpoint buried targets in just a few seconds.

1.Once the presence of a buried target is indicated by a sharp increase in the audio signal and needle movement, continue moving the search coil from side-to-side across the target area in a narrower and narrower search pattern.

2.Stop the search coil over the spot where you receive the loudest response and highest meter reading.

3.Now move the coil slowly forward and straight back a couple of times, again stopping over the strongest response.

4.Move the search coil side-to-side one more time and stop over the strongest signal once again. Your target should be directly below the center of the search coil.

5.For quick and accurate pinpointing of strong signals, push the RETUNE button momentarily, close to, but not over, the target area. This will “detune” the M-96 so that it responds over a smaller area, making pinpointing of the object easier. “Detuning” also reduces depth penetration.

CAUTION:

The ultra-slow auto-tune circuitry is constantly retuning the M- 96 just fast enough to counteract any drift caused by humidity, temperature changes, etc. If the search coil is held for a prolonged period of time over a target, the M-96 will eventually “tune out” the target and the signal will fade. A brief negative- meter response may also result when the coil is moved away from the target. In either case, the M-96 may be instantly retuned to the “threshold” level by pushing the RETUNE button while holding the coil away from the target area.

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