Fisher M-96 manual High Mode

SETTING UP

HIGH MODE

1.Rest the search coil on the ground in an area you are reasonably sure is free of metal objects.

2.After going through BAT test in the NORMAL MODE, turn the MODE knob to HIGH.

3.Turn the GROUND knob to 5.

4.Push and releases the RETUNE button. The meter reading should be about 10 and the speaker should have a slight hum, or “threshold sound.”

5.Raise the coil straight up about 12 inches and note any changes in the meter indication and speaker volume.

6.If there is little or no change in the meter reading and volume, the M-96 is properly ground adjusted and you are ready to search. If there is a change, proceed to step A or B.

A.If the needle and sound level drop when you raise the coil, set the search coil flat on the ground, turn the GROUND knob to 4 and push and release the RETUNE button. Now raise the coil 12 inches from the ground and repeat steps 4 and 5, making minor adjustments to the GROUND knob until the meter reading and sound remain the same whether the search coil is flat on the ground or 12 inches in the air.

B.If the needle and sound level increase when you raise the coil, set the coil flat on the ground and turn the GROUND knob to 6, push and release the RETUNE button. Raise the coil 12 inches from the ground and repeat steps 4 and 5, making minor adjustments with the GROUND knob until the meter reading and sound remain the same whether the search coil is flat on the ground or 12 inches in the air.

The rule of thumb is this: if the volume increases when the coil is raised, turn the GROUND knob up. If the volume decreases, turn the GROUND knob down.

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